USER'S MANUAL NO. 990-510 REVISION F: June 1998
OPERATION, MAINTENANCE AND SERVICE MANUAL FOR THE ULTRA COMPACT LW10/LW15 PULSED Nd: YAG LASER
COMPLIES WITH 21 CFR 1040.10 Version 1.0 Copyright © 1993, 1998 Unitek Miyachi Corporation All Rights Reserved
1820 S. Myrtle Avenue, P.O. Box 5033, Monrovia, CA 91017-7133 Telephone (626) 303-5676 FAX (626) 358-8048 Copyright © 1993, 1998 Unitek Miyachi Corporation
The engineering designs, drawings and data contained herein are the proprietary work of UNITEK MIYACHI CORPORATION and may not be reproduced, copied, exhibited or otherwise used without the written authorization of UNITEK MIYACHI CORPORATION.
Printed in the United States of America
Revision Record
Revision EO Date Basis of Revision A None 3/93 Original publication B 16509 3/96 Revised C 16785 10/96 Format revised and quality upgraded. Added clarification of the I/O signal interface and an external communication interface appendix D 16906 3/97 Add steam-distilled water applicability. Moderate changes to water drainage procedures. Correct text overlay problems in some drawings E 17479 5/98 1. Add burn pattern adjustment procedure. 2. Incorporate notes and an illustration to clarify guide beam adjustment. F 17542 6/98 Revised and add LW15 coverage. S:\shared\manuals.rel\lw10d
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 i CDRH COMPLIANCE STATEMENT
The Unitek Miyachi Corporation LW10/LW15 Pulsed Nd:YAG Laser is certified to be fully compliant with all applicable standards and regulations as set forth by the United States of America's Health and Human Services (HHS), Food and Drug Administration (FDA), Center for Devices and Radiological Health (CDRH), standard 21 CFR 1040.10 for Class IV laser devices. Please refer to CDRH Accession #9311157-03.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 ii FOREWORD
Thank you for purchasing a Unitek Miyachi Corporation Ultra Compact LW10 or LW15 Pulsed Nd: YAG Laser.
Upon receipt of the Laser, please thoroughly inspect it for shipping damage prior to it's installation. Should there be any damage, please immediately contact the shipping company to file a claim, and notify Unitek Miyachi Corporation.
Unitek Miyachi Corporation 1820 South Myrtle Ave. P. O. Box 5033 Monrovia, CA 91017-7135
Phone: (626) 303-5676 FAX: (626) 358-8048
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 iii CAUTION
This instruction manual describes how to operate, main- tain and service the LW10/LW15 Laser, and provides instructions relating to it's SAFE use. Procedures described in this manual MUST be performed as detailed by QUALIFIED and TRAINED personnel.
For SAFETY, and to effectively take advantage of the full capabilities of the LW10/LW15 Laser, please read this instruction manual and the Laser Safety Manual thoroughly before attempting to use the Laser.
Procedures other than those described in this manual or not performed as prescribed in this manual, may expose personnel to electrical hazards and/or laser radiation hazards.
After reading this manual, retain it for future reference when any questions arise regarding the proper and SAFE operation of the LW10/LW15 Laser.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 iv TABLE OF CONTENTS
CHAPTER 1: Precautions Prior to Using The LW10/LW15 Laser...... 1-1 Installation Site and Electrical Supply ...... 1-1 Carrying The LW10/LW15 Laser ...... 1-1 Handling The Fiber Optic Cables...... 1-2 Removal of Oscillator Hold Down Brackets ...... 1-3 Operation in Cold Weather...... 1-3 Other Precautions ...... 1-4 Laser Safety Officer Responsibilities ...... 1-4 Interlocks...... 1-4 Cautions and Warning Indications...... 1-4 Design Integrity...... 1-4 Maintenance...... 1-4 Laser Controller...... 1-5 CHAPTER 2: System Description SECTION 1: SYSTEM FEATURES ...... 2-1 SECTION 2: SYSTEM COMPONENTS ...... 2-2 Front, Top and Side View of The LW10/LW15 Laser ...... 2-2 Inside the Maintenance Door...... 2-3 Rear Panel ...... 2-4 Control Panel...... 2-5 Oscillator Head ...... 2-6 Oscillator Beam Paths and Shutter Assembly ...... 2-8 Component Functions ...... 2-9
TABLE OF CONTENTS (continued)
SECTION 3: I/O SIGNAL INTERFACE ...... 2-10
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 v Input Signals ...... 2-10 Contact Signals ...... 2-11 Transistor Signals ...... 2-12 Remote Interlock Connector ...... 2-14 Precautions for Changing a Schedule ...... 2-15 Output Signals...... 2-16 Output Signal Circuits...... 2-17 Output Signal Specifications...... 2-18 Timing Diagram (When an external input signal is applied) ...... 2-19
CHAPTER 3: Operating Instructions ...... 3-1 SECTION 1: GETTING STARTED ...... 3-1 Power Supply Connections ...... 3-1 Water Supply Replenishment ...... 3-1 Optical Fiber Connection...... 3-2 Connection of the Interlock Signal Cable ...... 3-2 Before Connecting The Fibers...... 3-2 Connecting Fiber to Input Focusing Unit ...... 3-2 Input Focusing Adjustment, Z-Axis ...... 3-3 Input Focusing Adjustment, X-Y Axes ...... 3-4 Connection to Final Focusing Unit ...... 3-4 SECTION 2: OPERATING FUNCTIONS ...... 3-5 Preparation for Operation ...... 3-5 Turning Power ON and OFF...... 3-5 SECTION 3: OPERATING PROCEDURES ...... 3-9 Operating the LW10/LW15 Laser...... 3-9 Screen Descriptions...... 3-10 Schedule Screen...... 3-10 Maintenance Screen...... 3-11
TABLE OF CONTENTS (continued)
Status Screen ...... 3-12
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 vi -1 Monitor Screen ...... 3-13 -2 Energy Monitor Screen...... 3-14 -3 Average Monitor Screen...... 3-15 High Voltage ON/OFF...... 3-15 When Controlled from The Control Panel...... 3-15 When Externally Controlled (EXT)...... 3-15 Aiming Laser Beam ON/OFF ...... 3-16 Switching of Operating Conditions...... 3-16 When Controlled from The Control Panel...... 3-16 When Externally Controlled ...... 3-16 Laser Output ...... 3-16 When Controlled from The Control Panel...... 3-16 When Externally Controlled ...... 3-16 Precautions for Operation ...... 3-17 Outlet of Optical Fibers...... 3-17 Maintenance Door...... 3-17
CHAPTER 4: User Maintenance SECTION 1: PRECAUTIONS ...... 4-1 SECTION 2: COOLER MAINTENANCE ...... 4-1 Air Filter Cleaning ...... 4-1 Replacing the Ion Exchange Resin Cartridge and the Deionized or Steam-Distilled Water ...... 4-2 Draining the Deionized or Steam-Distilled Water ...... 4-2 Cleaning or Replacing the Small Water Filter ...... 4-2 Replacing the Ion Exchange Resin Cartridge and the Coolant Water...... 4-3 Replacing the Existing Flash Lamp...... 4-4 Replacing Existing Deionized or Steam-Distilled Water ...... 4-5
TABLE OF CONTENTS (continued)
Coolant Water Draining: For Long Term Storage; When Transporting the Laser; or When Temperature Drops Below 0° C...... 4-6
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 vii CHAPTER 5: Service SECTION 1: LASER HEAD ...... 5-1 Flash Lamp Replacement ...... 5-1 Alignment of the Beam into the Fiber Optic Cable...... 5-5 Preparation...... 5-5 Burn Pattern Adjustment...... 5-6 Z-Axis Adjustment...... 5-6 X-Y Axes Adjustment...... 5-11 SECTION 2: OPTICAL PARTS ...... 5-13 Cleaning the Optics...... 5-13 Optical Component Maintenance Tools and Materials ...... 5-13 Removing the Input Focusing Unit Optics ...... 5-14 Cleaning a Dusty or Dry-Dirt Coated Optic ...... 5-15 Cleaning a Contaminated Optic...... 5-15 Reassembling the Optical Components ...... 5-16 Optical Fiber Cleaning...... 5-16 SECTION 3: POWER SUPPLY ...... 5-17 Backup Battery Replacement ...... 5-17 Fuse Replacement ...... 5-17 SECTION 4: TROUBLESHOOTING ...... 5-18 Malfunction Indications...... 5-18 Malfunction Check List...... 5-18 SECTION 5: PARTS LISTS ...... 5-22 Accessory Kit...... 5-22 Spare Parts Kits...... 5-23 SECTION 6: REPAIR SERVICE ...... 5-25 TABLE OF CONTENTS (continued)
SECTION 7: WARRANTY ...... 5-26 APPENDIX A: Technical Specifications ...... A-1 APPENDIX B: External Communications Specification ...... B-1
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 viii APPENDIX C: Schedule Data Table ...... C-1 APPENDIX D: Labels ...... D-1 ALPHABETICAL SUBJECT INDEX ...... INDEX-1
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 ix CHAPTER 1 PRECAUTIONS
Prior To Using The LW10/LW15 Laser NOTE: Please have all personnel who will be working with the LW10/LW15 Laser read this manual thoroughly before attempting to operate or maintain the laser. WARNING: Operating, adjusting, maintaining or servicing the LW10/LW15 Laser in a manner other than described in this manual may expose personnel to laser radiation or electrical hazards.
Installation Site And Electrical Supply C Install the LW10/LW15 Laser securely on a level floor. C Use 208VAC or 230VAC, 50Hz/60Hz, 3-phase power, with a minimum of 1.5 kVA capacity. C Install good grounding. CAUTION: When power is turned on, a surge current may be generated. Use a circuit breaker that has a rating of 10 amps or greater.
Carrying the LW10/LW15 Laser
CARYLW10.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 1-1 CHAPTER 1: PRECAUTIONS
Carrying the LW10/LW15 (continued) When you carry the laser, hold the bottom of the housing between the front and back casters. Do not hold the laser by the maintenance door; it may break if you try to lift or carry the laser with it. Handling The Fiber Optic Cables Optical fibers may be damaged and become unusable when they are bent beyond their minimum bend radius or subjected to the shock of a strong impact (refer to the listing below): Minimum Bend Radius for Specified Core Diameter Core Diameter (mm) Minimum Bend Radius (mm)
0.2 100 0.3 100 0.4 100 0.6 150 0.8 200
The LW10/LW15 Laser uses either SI or GI core fibers. The maximum input energy/power allowed per fiber is dependent upon core type and core diameter. Input energy/power values in excess of those listed below may cause damage to the fibers. Maximum Allowable Input Energy/Power
Core Diameter LW10 LW15 (mm) Energy (J) Power (W) Energy (J) Power (W)
0.2 7 10 Not Available 0.3 10 12 4 8 0.4 151 301 25 15 0.6 302 502 0.8 1.0 1 Maximum rated output of LW10 laser 2 Maximum rated output of LW15 laser
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 1-2 CHAPTER 1: PRECAUTIONS
Handling The Fiber Optic Cables (continued) Dirty or dusty end surfaces on the optical fibers will cause damage to the fibers. The damaged surfaces of the fibers can also cause contamination to adjacent lenses. Do not remove the rubber fiber end caps until it is necessary.
Removal Of Oscillator Hold Down Brackets To fasten the base of the oscillator head during transportation, the yellow hold down brackets are attached as shown in the following illustration. Remove these brackets when installing the LW10/LW15 laser. Retain them for future use when transporting or relocating the laser. Use of these brackets will help to prevent misalignment and damage to the laser oscillator caused by severe vibrations.
L10HLDWN.PCX Operation In Cold Weather When the temperature drops below 0°C, the water inside the LW10/LW15 Laser’s cooling system can freeze and may damage the laser. In cold regions, take special care to keep the ambient tempera-ture where the laser is located above 0°C. If the temperature will drop below 0°C, perform the procedure detailed in Chapter 4 entitled Coolant Water Draining: For Long Term Storage; When Transporting the Laser; or When Temperature Drops Below 0°C. When it is cold, a rapid temperature change caused by a heating system, for example, may cause dew condensation on the end faces of the Nd:YAG rod and on other optical surfaces. This will attract dust and can cause damage to the surfaces of the optics. CAUTION: Avoid rapid temperature changes.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 1-3 CHAPTER 1: PRECAUTIONS
Operation In Cold Weather (continued) WARNING Be sure to turn off high voltage and the laser guide beam when checking the rod end and/or the mirror. If you do not turn them off, you are exposed to the possibility of electric shock or blinding. If dew condensation is suspected, check the end surfaces of the laser rod and the optics. Inspect the rod's end surfaces by placing white paper on one end and using a dental mirror on the other end. You will need to remove the beam path covers on both ends of the laser cavity to do this inspection.
Operating the Laser When operating the laser unit, always wear protective goggles having an optical density of at least 6 at a wavelength of 1064 nanometers.
Other Precautions Laser Safety Officer Responsibilities. The Laser Safety Officer (LSO) must provide personnel with sufficient training so that personnel can operate, maintain and service the laser safely. The LSO must take charge of the key to the key switch to ensure that the laser is operated only by qualified and authorized personnel. Interlocks. Refer to the illustration on the following page. Caution and Warning Indications. Make sure proper warning signs and warning lights are installed in and around the laser installation. Also, make sure access doors to the laser area are interlocked to the laser. Locate danger labels and other warning/caution notices on the door of the location where this laser will be installed to indicate that a laser will be used in this location. Cleanliness. The exterior of the laser should be kept clean. Use a dry cloth or, if heavily soiled, use a cloth moistened with a mild detergent or alcohol. Do not use paint thinner or acetone. Design Integrity. Do not modify the laser without prior written approval from Unitek Miyachi Corporation. Maintenance. Before performing any maintenance to the laser, please read Chapter 4, User Maintenance, thoroughly.
Laser Controller. Optional laser controller MLE-107A-01 is designed specially for the
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 1-4 CHAPTER 1: PRECAUTIONS
LW10/LW15. Do not use it with another model.
INTRLOK.PCX Interlocks
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 1-5 CHAPTER 2 SYSTEM DESCRIPTION
SECTION 1: SYSTEM FEATURES The LW10/LW15 is an ultra-compact, pulsed, Nd:YAG laser designed as a precision spot welder. It incorporates the following features in its design: C The operator control panel can store up to eight different weld schedules, allowing various work pieces to be processed under optimum conditions. C The ultra compact design incorporates the laser head, power supply and cooling system in one unit without the need for an external chiller. C Electrical connection and cooling system servicing are accessed from the front maintenance door, allowing the operator to easily perform difficult tasks such as wiring ion-exchange resin cartridge replacement. C The operator can easily and correctly operate the machines and input the welding schedules with the control panel. C Automation integration is easily accommodated by a large I/O capability. C The built in power monitor displays both energy per pulse (Joules) and average power (watts). Upper and lower limits for power output can be programmed, and are displayed on the control panel. C The LW10/LW15 Laser is air cooled, eliminating the need for an expensive external chiller or cooling water lines. C Up to three LW10/LW15 Lasers can be linked together to provide up to nine simultaneous welds with less than a 10 microsecond time lag. C An optional remote controller is available for the LW10/LW15 Laser. C A choice of fiber optic cable core diameters and core index type is available as well as a choice of focusing heads. C The LW10/LW15 Laser features “Auto Start.” Turning a key switch starts the laser through an auto start program. C The ultra compact design of the LW10/LW15 Laser requires a minimum of space for installation. C The screen on the LW10/LW15 Laser controller features an extra large display mode for ease of monitoring laser output values. C Up to 30 LW10/LW15 Lasers can be linked via a host computer in a production environment.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-1 CHAPTER 2: SYSTEM DESCRIPTION
SECTION 2: SYSTEM COMPONENTS Front, Top and Side View Of The LW10/LW15 Laser
FRTOPSID.PCX
1) Main Power Breaker Switch: Controls electrical power ON/OFF to the laser. 2) Supervisor Key-Control Switch: Prevents unauthorized use of the laser. When this switch is turned ON, the unit can be started. 3) Status Indicator Lights: These lights indicate various operational conditions. 4) Emergency Stop Button: Shuts off high voltage circuit, cooler and closes shutters. 5) Control Panel: Contains controls and the display for laser operation. 6) Oscillator Cover: Safety interlocked cover. Remove to replace the flash lamp and install fiber optic cables. 7) Maintenance Door Latch: Used to open and close the front maintenance door. 8) Maintenance Door: Provides access for cooler maintenance to replace the ion- exchange resin cartridge and deionized water and to connect the electrical service connections. 9) Control Head: Contains the laser control panel, E-stop button and status indicator lights. Slide it forward or backward for maintenance.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-2 CHAPTER 2: SYSTEM DESCRIPTION
Front, Top and Side View Of The LW10/LW15 Laser (continued) 10). Power Supply Cover: Removable, safety interlocked access panel to the power supply. 11). Fiber Optic Cables: These cables transmit the laser beam to the final focusing heads. 12). Final Focusing Heads: Focus laser beam on to the work piece.
Inside The Maintenance Door
MAINDOR.PCX
1) Electrical Supply Connection Terminal: The electrical supply is connected here. The terminals are located behind the cover. 2). Ground Terminal: Connect the ground cable to this terminal. The terminal is located behind cover. 3) Remote Interlock Connector: When the circuit is opened, the main shutter will close and laser operation will pause. The pause mode will remain in effect until the remote interlock circuit closes. 4) External Communications Connectors: RS-485 external communications connectors.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-3 CHAPTER 2: SYSTEM DESCRIPTION
Inside The Maintenance Door (continued) 5) External Communications I/O Connector: Used to interface with external controls and peripheral devices. 6) Control Panel/Laser Interface Connector: This connector connects the laser to the laser control unit. 7) D.I. Water Drain Pipe: Used to drain the deionized water reservoir. 8) D.I. Water Ion Exchange Cartridge: Ion-exchange resin in this cartridge heightens the purity of the deionized water. 9). Interlock Switch: Switch for safe operation. If the front door is opened, this switch breaks the high voltage circuit and the laser oscillation stops.
Rear Panel
REARPNL.PCX
1) Power Supply Cooling Fan: Draws in cool air to cool the power supply. 2). D.I. Water Heat Exchanger Fan: Draws air through the heat exchanger to cool the deionized water reservoir. 3) Heat Exhaust Vent: Allows warm air in the power supply section of the laser enclosure to vent to the outside.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-4 CHAPTER 2: SYSTEM DESCRIPTION
Control Panel
CTRLPNAL.PCX
1) EMERGENCY STOP Button: Shuts off the high voltage circuit and cooling system, and closes shutters. 2) Supervisor Key-Control Switch: Prevents unauthorized use of the laser. 3) Liquid Crystal Display: Displays all laser operational data. 4) Laser Start/Stop Button: Press this button when in the READY mode to begin to fire the laser: If the operation is started with repeated pulses (PPS), it can be stopped by pressing this key. 5) Trouble Reset Button: When an error condition occurs, correct the problem and press this button to reset the laser. 6) Cursor Control Keys: Use these keys to move the display cursor. 7) +/ON and -/OFF Keys: Use these keys to change displayed values. 8) Menu Key: Press this key to advance to the next display screen. 9) Enter Key: Press this key to complete the change in data. Press this key at the end of each field.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-5 CHAPTER 2: SYSTEM DESCRIPTION
Control Panel (continued) 10) LED Indicator Lights: Indicates system status: C Power: Lights when Power is turned on. C High Voltage: Lights when HV is on. C Ready: Lights when the power supply is charged. C Emission: Laser can be output 2 seconds after the LED lights. C Shutter: Lights when the main cavity safety shutter is open. C Trouble: Lights when an abnormal condition occurs.
Oscillator Head
LW103BSH.PCX
1) Laser Pump Chamber: Houses the Nd:YAG rod and flash lamp. 2) Diode Aiming Laser: Emits a red laser beam. Used to align the Nd:YAG beam path and position the weld point. 3) Aiming Laser Reflecting Mirror (two places): This mirror is used to direct the aiming laser beam through the center of the Nd:YAG rod.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-6 CHAPTER 2: SYSTEM DESCRIPTION
Oscillator Head (continued) 4) Resonator Mirror (two places): The Nd: YAG beam resonates between this mirror and is amplified each time it passes through the rod. 5) Energy/Power Monitor: This sensor unit measures the laser energy/power output. 6) Deflector Mirror: This mirror deflects the laser beam 90° to reflect it in the beam splitter mirror. 7) Branch Mirror (three places): Directs the beam to the fiber optic cable input focusing unit. It is used to split the laser beam into from one to three optical fiber outputs. 8) Beam Attenuator: When two or three optical fiber outputs are used, if their outputs are different from each other because of the slight difference of the reflection ratios of the mirrors, the stronger output is attenuated with this unit to balance the output. 9) Fiber Optic Cable Input Focusing Unit: Focuses the laser beam onto the input end of the fiber optic cable. 10) Alignment Scope Holder: Holds the fiberscope for beam alignment into the fiber optic cables. 11) Oscillator Hold Down Bracket (two places): Fastens the oscillator in position during transportation. NOTE: Remove the brackets before operating laser. 12) Main Shutter: Located in the Resonator Section between the main optics. This shutter is used to block the main laser beam.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-7 CHAPTER 2: SYSTEM DESCRIPTION
Oscillator Laser Beam Paths and Shutter Assembly
LBMPTH.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-8 CHAPTER 2: SYSTEM DESCRIPTION
Component Functions
COMFUNCT.PCX 1) Laser Head: Both the Nd:YAG beam and the aiming laser beam are generated here. The beam output optics are also housed in this part of the laser. 2) Power Supply: Provides discrete pulses of high voltage DC electrical energy to excite the flash lamp which, in turn, excites the Nd:YAG laser rod to emit laser energy. Also provides electrical power to the aiming laser, and interfaces with the laser energy/power sensor to control laser output. 3) Cooler/Heat Exchanger: Provides controlled temperature deionized water to cool the Nd:YAG rod and flash lamp. 4) Laser Control Panel: Used to control laser operation. Can store up to eight different laser output schedules. Also displays laser energy/power output, shot count and upper and lower laser output energy/power limit settings.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-9 CHAPTER 2: SYSTEM DESCRIPTION
SECTION 3: I/O SIGNAL INTERFACE Input Signals
Signal Name Contents Trouble reset Closed: Trouble is reset. Control changeover Open: Laser is controlled with control panel or laser controller. Closed: Laser is controlled with external input signals. HV-ON/OFF Closed: High voltage is turned on. Open: High voltage is turned off. Laser start* Closed: Flash lamp flashes and laser beam is output. Laser stop Open: Laser beam is turned off. Emergency stop Open: Emergency stop is applied. Schedule 1 Closed: Eight schedules from Schedule 0 to Schedule 7 can be set by inputting Schedules 1,2 and 4 by binary codes. Schedule 2 Schedule 4 COM Used as common line input signals. Shutter Open Closed: Shutter opens and laser beam can be output.
*NOTE: When multiple welders are used simultaneously, use a transistor signal as the laser start signal.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-10 CHAPTER 2: SYSTEM DESCRIPTION
Input Signals (continued) Contact signals. The contact signals are as illustrated in the following schematic diagram.
EXT-I/O Square Type Connector
LW10BSW.WPG
Input Signals (continued)
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-11 CHAPTER 2: SYSTEM DESCRIPTION
Transistor signals. The transistor signals are as illustrated in the following schematic diagram.
EXT-I/O SQUARE TYPE CONNECTOR
NOTE: Disconnect COM of the EXT-I/O from COM pin 2 of the remote interlock connector.
LW10BTRN.WPG Input Signals (continued)
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-12 CHAPTER 2: SYSTEM DESCRIPTION
Input Signal Specifications. The input signal specifications are as follows: Pin No. 15, +24V output: Pin to be used only for LW10/LW15's internal circuit connected to Pin 16. When a contact signal is input, short this pin to Pin 16. (Do not connect any pin other than Pin 16.) Pin No. 16, +12V--+30V input: When inputting by contact signals, short pin No. 16 to pin No. 15. If a transistor input is applied and power supply of +12V to +30V is available at the input device side, connect the positive (+) line of that power supply to this pin. Connect the 0V to pin No. 17 or 45. Pin No. 17 and pin No. 45, 0V (COM): Used as the common input signal line. When a transistor input is applied and the power supply of an external input device is used, connect the OV line to this terminal. Pin No. 29, Trouble reset: When trouble occurs, correct it then input this signal to reset to the normal state. Pin No. 30, Control Changeover (External): External input signals are effective only while the COM-EXT ON circuit is closed. Pin No. 31, HV-ON: If the COM-HV-ON circuit is closed, high voltage is applied. If the COM-HV-ON circuit is opened, the high voltage is turned off. Pin No. 34, Laser start: If the COM-Laser start circuit is closed, the laser beam is output. Apply the closing signal for at least 20 ms. When inputting repeatedly, open the circuit for at least 20 ms. Note: When multiple welders are used simultaneously, use a transistor signal as the Laser Start signal. Note: You can also select Laser start (and stop) with the software. The software selection sets Pin 30 to ground (External Start enabled). The External I/O Laser Start signal will then accept the Laser Start signal and start the welding cycle.
WARNING: You must also supply a Laser Stop signal. If you do not turn off the laser at the end of the welding cycle adjacent personnel could be exposed to radiation. Pin No. 35, Laser stop: The COM-Laser stop circuit is normally closed. If the COM- Laser stop circuit is opened while the laser is oscillating repeatedly (REPEAT, PPS), laser oscillation will stop. Pin No. 36, Emergency stop: COM-Emergency stop circuit is normally closed. If this circuit is opened, the high voltage circuit is opened and laser oscillation is stopped. The cooler is also stopped. If this circuit is opened, an emergency stop is applied, regardless of application of the EXT-ON/OFF signal.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-13 CHAPTER 2: SYSTEM DESCRIPTION
Input Signal Specifications (continued) Pins No. 37-39, Schedule 1/Schedule 2/Schedule 4: The set schedule is selected according to input of schedule 1, 2 and 4. For schedule selection, refer to the following table.
Schedule Input Signal Selection No. Schedule 1 Schedule 2 Schedule 4 0 1 ! 2 ! 3 !! 4 ! 5 !! 6 !! 7 !! ! C = Input pin-COM circuit closed. Blank = Input pin-COM circuit open.
NOTES FOR START SIGNAL TABLE: If any of the Schedule 1, 2 and 3 signals are not input, schedule 0 is set. When using two or more schedules, use from schedule 0. If BANK ALARM (Capacitor bank trouble) is indicated, check the voltage difference caused by change of the schedule and the discharge cycle time to see if the latter time is proper.
Pin 42, Main (Resonator) Shutter: The main (resonator) shutter will open if the COM - Main Shutter circuit is closed while in the external control mode. Remote Interlock Connector. If this signal circuit is opened, the main shutter will close and the laser will go into the pause mode. It will remain in the pause mode until the remote interlock circuit is closed.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-14 CHAPTER 2: SYSTEM DESCRIPTION
Precautions for Changing a Schedule. When welding repeatedly, according to different schedules, you will need to set the timing for each schedule. If the set voltage is different from one schedule to another, the time to charge and discharge the capacitor must be set. Referring to the following graph, determine the time to change the schedule input. NOTE: Determine the discharge cycle time in the range above the direct line
VLTGSET.PCX
Voltage setting range for use of the LW10/LW15 Laser with multiple schedules. Condition: Room temperature 25NC.
VOLSTEXM.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-15 CHAPTER 2: SYSTEM DESCRIPTION
Output Signals
Signal name Contents Ready Output when the laser can be started (open collector). High voltage Output while high voltage is generated in the laser (open ON/TR collector). High voltage This closes for alarm lamp (Contact capacity: 250VAC/2 A, ON/C 30VDC/2A). AC 100V output Used for alarm lamp (0.2 A). Trouble Opened after trouble occurs until it is reset (open collector). Finish Output for 50 msec after laser flashing is finished (open collector). Monitor normal Output for 50 msec when the laser power monitor is in range between set upper and lower limits (open collector). Monitor trouble Output for 50 msec when the laser power monitor is out of range between set upper and lower limits or the light is not turned on (open collector). SIGNAL Laser power monitor waveform is output by analog signals.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-16 CHAPTER 2: SYSTEM DESCRIPTION
Output Signal Circuits
EXT-I/O SQUARE TYPE CONNECTOR
LW10
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-17 CHAPTER 2: SYSTEM DESCRIPTION
Output Signal Specifications Maximum output rating: 30V, 20 mA Output Signal Specifications. The output signal specifications are as follows: Pin No. 1 -- 2, Ready: When HV-ON is turned on and the capacitor is charged to the set voltage, this circuit is closed to output the signal. Pin No. 3 -- 4, High voltage ON: When high voltage is applied to the laser, this circuit is closed to output the signal. Pin No. 5 -- 6, Trouble: When the laser malfunctions, this circuit is kept closed to output the signal until the Trouble Reset signal is input. Pin No. 7 -- 8, Finish signal: This signal is output for 50 msec after one shot of laser oscillation is finished. Pin No. 9 -- 10, Monitor normal: This signal is output for 50 msec when the laser power monitor value is within the set range between LOW and HIGH. This signal is not output, however, when the NO-LIGHT signal is indicated. Pin No. 11 -- 12, Monitor trouble: This signal is output for 50 msec when the laser power monitor value is out of the set range between LOW and HIGH or the NO- LIGHT signal is indicated. Pin No. 20 -- 21, Laser output waveform: The monitor waveform of the laser output is output by analog signals. Pin No. 25 -- 26, High voltage ON, contact output: This contact output is used to turn on an external alarm lamp. (Contact capacity: 250VAC, 2 A/30VDC, 2 A). Pin No. 27 -- 28, 100VAC, 2.0 A output: Used as the power to turn on an external alarm lamp.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-18 CHAPTER 2: SYSTEM DESCRIPTION
Timing Diagram (When an external input signal is applied)
TIMECHT.PCX NOTE: Input the laser start signal while the READY signal is output, after Shutter opening completion is output, and at least 250 msec after the main shutter open signal is entered.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 2-19 CHAPTER 3 OPERATING INSTRUCTIONS
SECTION 1: GETTING STARTED Power Supply Connections 1. Open the front maintenance door and remove the terminal cover. 2. Feed the power cable through the bottom of the housing and connect it to the 208/230 VAC, 3-phase power input. The power input must have must have a minimum capacity of 1.5 kVA. NOTE: Connect the R, S, and T phases in the proper order. CAUTION: Be sure to ground the laser unit properly.
Water Supply Replenishment Note: Any reference to D.I. water, or deionized water, in this manual is understood to also include steam-distilled water. Use of steam-distilled water is acceptable because the laser action will deionize it and control its purity (electrical resistivity). 1. Remove the deionized water tank lid by removing two thumbscrews.
2. Fill or top off the reservoir using deionized water or steam- distilled water. Use the supplied hand operated pump for this purpose. Make sure that the water level is maintained between the Min/Max marks on the water level indicator. The initial fill will drop as the ion exchange cartridge and particulate filter are filled with water. It is prudent to fill to the upper level mark.
3. Top off the reservoir as necessary. DEIOWTR.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-1 CHAPTER 3: OPERATING INSTRUCTIONS
Water Supply Replenishment (continued)
CAUTION: The supplied hand pump should never be used to pump anything other than deionized or steam-distilled water. Using it with other liquids will contaminate it for future use.
Optical Fiber Connection
Connection of the Interlock Signal Cable. If an interlock signal cable is used on the focusing head or laser room door, connect the interlock signal cable to the LW10/LW15 Laser as shown in the illustration opposite.
Before Connecting The Fibers. Verify that the optical fiber's end surfaces are perfectly clean. To check for fiber end surface cleanliness use a fiber end face checker.
After verification, replace the rubber end cap on the fiber connector. If surfaces are dirty, clean with optical quality compressed air blower, or lens tissue. Refer to Chapter 7 for instructions on cleaning optics. SIGCBL.PCX
Connecting Fiber to Input Focusing Unit. To connect the fiber to the input focusing unit:
1. Remove the safety interlocked top cover from the laser housing.
2. Insert one end of the optical fiber through the rubber boot of the fiber exit port on the top of the laser.
FIBRNPUT.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-2 CHAPTER 3: OPERATING INSTRUCTIONS
Connecting Fiber to Input Focusing Unit (continued) 3. Remove the rubber end cap from the inserted end of the fiber. 4. Use the clean air blower to remove dust on the fiber end face. 5. Match and insert the pointing end of the fiber connector into the receiving end of the input focusing unit. BINPTUNT.PCX 6. Fasten the connector by turning the ferrule clockwise. Be careful not to exceed the minimum bend radius of the fiber during this procedure. Refer to Chapter 1 in the section titled, Handling The Fiber Optic Cables.
CAUTN.PCX
Input Focusing Adjustment, Z-Axis. On initial set-up, and whenever fiber core diameters are changed, the Z-axis focus adjustment on the input focusing unit must be adjusted. It is important to make this adjustment to assure maximum beam input into the fiber, and to avoid any damage to the fiber end face. See Chapter 5 in the section titled, Alignment Of The Beam Into The Fiber Optic Cable.
FIBRSCOP.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-3 CHAPTER 3: OPERATING INSTRUCTIONS
Optical Fiber Connection (continued) Input Focusing Adjustment, X-Y Axes. Always adjust the X-Y axes of the input focusing unit when the optical fiber is replaced. Without the X-Y axes adjustment to correct the input focusing, the laser beam may burn the optical fiber's input end. Refer to Chapter 5 in the section entitled, X-Y Axis Adjustment. When the same optical fiber is removed and reconnected, readjustment of the X-Y axes is not required if the same end is used. If the opposite end of the fiber is used as the input end, readjustment is required. ADJXYAXS.PCX
Connection To Final Focusing Unit. To connect the fiber to the final focusing unit: 1. Carefully extend the fiber optic cable to the final focusing unit without exceeding the minimum bend radius or causing any mechanical shock to the cable. 2. Remove the rubber end cap from the output end of the fiber and blow it clean as previously described. 3. Insert the fiber connector into the final focusing head and secure it as previously CONFCSHD.PCX described. Note: When cleaning the fiber optic cables, prior to insertion into the focusing heads, always blow off the connectors on the focusing heads. CAUTION: Always use an air blower designed for use on high quality optics, such as a photographic air blower. Never use cleaners or air supplies that contain silicones or oils.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-4 CHAPTER 3: OPERATING INSTRUCTIONS
SECTION 2: OPERATING FUNCTIONS Preparation for Operation Verify that the electrical supply meets the requirements of the LW10/LW15 Laser. It requires a supply of 230VAC, 1.5 kVA (minimum), 3-phase with a 10 amp circuit breaker in the line between the laser and the supply. The electrical supply connection must meet ALL local, state and federal safety standards.
Turning Power ON and OFF Turn the power circuit breaker switch, located on the front of the LW10/LW15 Laser, to the ON position. The LCD display will read:
TEMP 28°C AUTO START
SELF CHECK >
At this time, the following items in the laser are automatically checked: C Main shutter - open/close C LED indicator lights C Memory (sum check and data range) C Flow switch C Simmer circuit detection C Charge trouble (charge completion signal) C Bank alarm (thermal, overcharging)
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-5 CHAPTER 3: OPERATING INSTRUCTIONS
Turning Power ON and OFF (continued) If conditions are normal, the LCD display will look like this:
TEMP 28°C
AUTO START
KEY - SWITCH ON >
This screen does not change until the control key-switch is turned ON. Turn the key-switch to the ON position. The LCD display will read:
TEMP 28°C AUTO START
KEY-SWITCH ON > COOLER ON >
DEIONIZE (LOW) *.*** MS • cm TEMP (LOW) MONITOR (NG)
DEIONIZE: Deionized (D.I.) water resistance value TEMP: D.I. water temperature MONITOR: Warm-up of the laser power monitor circuit
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-6 CHAPTER 3: OPERATING INSTRUCTIONS
Turning Power ON and OFF (continued) This screen will have the following display depending on the D.I. water resistance and temperature conditions.
Specific resistance Indication Temperature of Indicatio Power Monitor Indication of Deionized water deionized water n
Below 2.00 MS•cm LOW Below specified value LOW‰ In warming-up period NG
Below 3.00 MS•cm CAUTION In specified range GOOD Warming-up finished GOOD
3.00 MS•cm and up GOOD When the temperature is below the rated temperature or when the temperature slope is higher than rated, the display shows LOW.
When GOOD appears on all lines, the high voltage is turned on (HV-ON) and the following screen appears. If the laser has not been operated for a long period, it may take a little time to increase the specific resistance of deionized water. The LCD display will then read:
TEMP 28°C AUTO START
KEY-SWITCH ON > COOLER ON > HV-ON >
This screen appears when the HV is turned ON and remains ON until the charging is completed:
TEMP 28°C AUTO START
KEY-SWITCH ON > COOLER ON > HV-ON >
READY !!
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-7 CHAPTER 3: OPERATING INSTRUCTIONS
Turning Power ON and OFF (continued) When the charging is completed, the word READY !! appears for half a second. Then, the screen changes to the following:
-POWER MONITOR TEMP 28°C SCHEDULE No. 7 WIDE ENERGY 00.0J ENERGY : OFF AVERAGE 00.0W AVERAGE : OFF
HV:ON MAIN-SHUTTER:OFF POSITION: OFF
This screen displays the power monitor value of the schedule number. The system automatically displays this screen. From this point on, specify the data by pressing the input keys.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-8 CHAPTER 3: OPERATING INSTRUCTIONS
SECTION 3: OPERATING PROCEDURES Operating the LW10/LW15 Laser
In step a above, a certain menu is selected and the conditions are set by repeating INPUTKEY.PCXsteps b, c, and d.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-9 CHAPTER 3: OPERATING INSTRUCTIONS
Screen Descriptions Schedule Screen. The schedule screen is as follows:
-SCHEDULE No. 7 TEMP 28°C VOLT TIME REP SHOT DMY LOW HIGH 350V 07.0ms 02pps 999 99 00.00 99.9
ENERGY 10.0J TOTAL COUNT 12345678 AVERAGE 10.0W GOOD COUNT 12345678
HV: ON MAIN-SHUTTER: ON POSITION: ON
The above screen displays the condition input values and monitor values. Condition Input Setting Range:
Item Setting Range Unit Contents
No. 0 - 7 Units Selection of Schedule No. 200 - 410 (LW10) VOLT 200 - 430 (LW15) V Charge Voltage Setting TIME 0.3 - 10.0 msec Pulse Width REP 00 - 10 Hz Pulse Rep Rate, (PPS) SHOT 000 - 999 Shot Actual Shot Repetitions DMY 00 - 99 Shot Dummy Shot Repetitions LOW 00.0 - 99.9 J Energy Monitor Low Setting HIGH 00.0 - 99.9 J Energy Monitor High Setting
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-10 CHAPTER 3: OPERATING INSTRUCTIONS
Schedule Screen (continued) Screen Contents: The schedule screen content definitions are as follows: C TEMP **oC: Displays the D.I. water temperature. C ENERGY: Displays the monitor value of the single shot laser ener-gy in joules (J) of energy per pulse. It is judged to be either normal or an error by the set upper and lower limits. C AVERAGE: Displays the calculated average power expressed as watts (W). The monitored value is indicated, but it is not checked with an upper or lower limit. C TOTAL COUNT: Total count value. C GOOD COUNT: Number of shots within the high/low monitor limits. C HV: OFF (or ON): High voltage setting (ON or OFF). C MAIN-SHUTTER: Main (resonator) shutter open (ON) or closed (OFF). OFF (or ON): C POSI: OFF (or ON): Aiming laser beam (ON or OFF). NOTE: TEMP **oC is displayed at the top of every screen. HV: ***, MAIN-SHUTTER:*** and POSITION: *** are displayed at the bottom and can be changed. Maintenance Screen. The maintenance screen is as follows:
-MAINTENANCE MODE : ON TEMP 28°C VOLT TIME DEIONIZE *.** MS•cm 250V 0.7 ms (0.5 ms - 1.0 ms)
(RESET ?:YES) TOTAL COUNT 12345678 (RESET ?:NO ) GOOD COUNT 12345678 HV: OFF MAIN-SHUTTER: OFF POSITION: OFF
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-11 CHAPTER 3: OPERATING INSTRUCTIONS
Maintenance Screen (continued) This screen is used to input the oscillation adjustment conditions, or to reset the total count value or the good count value. C MAINTENANCE MODE: ON (or OFF): Switching of maintenance mode (ON or OFF). When the maintenance MODE switch is switched ON, the maintenance mode setting values are displayed. The screen cannot be changed using the MENU key. When the maintenance MODE switch is switched OFF, the screen can be changed using the MENU key. Note that: Laser start accepts only the input from the laser start switch on the control panel. This mode neither detects the power monitor nor determines the output. The externally controllable output will be turned OFF. C TOTAL COUNT: Total count value. C GOOD COUNT: Good count value. The maintenance mode does not count this. << Count Reset Method >> Move the cursor to (RESET ?:NO) and press the [ON +] key and the [ENTER] key. This will reset the count value on the line where the cursor is located. Status Screen. The status screen is as follows:
- STATUS [EXTERNAL CONTROL] TEMP 28°C POSI MODULATION : OFF ROM VERSION POSI AUTO OFF :OFF LW 10 [V1 - ***] PANEL [V1 - ***]
HV: OFF MAIN-SHUTTER: OFF POSITION: OFF
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-12 CHAPTER 3: OPERATING INSTRUCTIONS
Status Screen (continued) This screen is used for setting the aiming laser beam functions. On the right of STATUS, it displays the control status of this unit as follows: C [EXTERNAL CONTROL]: External control. External Control Iinput of the EXT I/O is turned ON. C [PANEL CONTROL]: Panel control. External Control Input of the EXT I/O is turned OFF. C [RS - 485 CONTROL]: Control via communications from the RS-485 interface. C POSI MODULATION: OFF: Aiming beam's modulation ON/OFF. (or ON) ON = modulation is turned ON (blinking) OFF= modulation is turned OFF (steady light) Note: If this function is used, the life of the aiming laser beam is extended. C POSI AUTO OFF: OFF: Automatically turns off the aiming laser (or ON) beam. ON = automatically turns off OFF = steady light lit. C ROM VERSION display: Displays the ROM version of the main memory of the LW10/LW15 Laser. -1 Monitor Screen. The -1 monitor screen is as follows:
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-13 CHAPTER 3: OPERATING INSTRUCTIONS
- POWER MONITOR TEMP 28°C
SCHEDULE No. 7 WIDE ENERGY 10.0J ENERGY : OFF AVERAGE 10.0W AVERAGE : OFF
HV: OFF MAIN-SHUTTER: OFF POSITION: OFF
-1 Monitor Screen (continued) This screen displays the power monitor value of the schedule number selected. C SCHEDULE No. * : Schedule Number. If the display schedule number is different from one in operation, No. blinks. C ENERGY : Single shot laser energy in joules (J). Based on the upper/lower limit values set for the schedule screen, the monitor has determined to be normal or abnormal. C AVERAGE : Average power in total watts. Monitor display only. No determination of the upper/lower limits. WIDE C ENERGY : OFF: When this is ON, the energy monitor value is displayed in (or ON) large (wide) characters. C AVERAGE : OFF: When this is ON, the average power is displayed in large (or ON) (wide) characters. NOTE: The monitor value is the originating power at the oscillator, not at the output end of the fiber optic cable.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-14 CHAPTER 3: OPERATING INSTRUCTIONS
-2 Energy Monitor Screen. The -2 energy monitor screen is as follows:
TEMP 28°C WIDE : ON
HV: ON MAIN-SHUTTER: OFF POSITION: OFF
This screen displays the power monitor value of the specified schedule number in large characters. WIDE : *** : Set this to OFF to return to a regular monitor screen.
-3 Average Monitor Screen. The -3 average monitor screen is as follows:
TEMP 28°C
WIDE : ON
HV: ON MAIN-SHUTTER: OFF POSITION: OFF
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-15 CHAPTER 3: OPERATING INSTRUCTIONS
This screen displays the average power in large characters. WIDE : *** : Set this to OFF to return to a regular screen.
High Voltage ON/OFF When Controlled From The Control Panel. When the [HV:***] section at the bottom left of any screen is set to ON, the high voltage is turned on and the capacitor bank is charged to the programmed voltage value. The system becomes ready to accept the Laser Start command. When Externally Controlled (EXT). When the HV - ON input line is closed, the high voltage is turned ON. When the HV - ON input line is opened, the high voltage is turned OFF. NOTE: The paragraphs on high voltage control above are applicable when the control key switch is turned ON. When the control key switch is turned OFF, neither of these operations result in turning ON the high voltage.
Aiming Laser Beam ON/OFF WARNING: Before adjusting the output position or doing any maintenance work, be sure to turn OFF the high voltage. The diode laser aiming beam may be turned ON or OFF to verify the location of the Nd:YAG beam output or for any maintenance adjustment. When the [POSITION: ***] section at the bottom right of any screen is set to ON, the aiming beam turns on. When the [POSITION: ***] section is set to OFF, the aiming beam is shut off.
Switching of Operating Conditions When the operating condition is changed, it takes a while for the charging voltage to reach the set voltage for that particular condition. When Controlled by the Control Panel. With EXT * I/O connector EXT ON open: 1. Change the control panel screen to the schedule menu screen and move the cursor to the Schedule No. position using the cursor keys. 2. Use the [ON +] and [OFF -] keys to input the desired schedule number.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-16 CHAPTER 3: OPERATING INSTRUCTIONS
3. Next, press the [ENTER] key to change the number. When Controlled Externally. With EXT * I/O connector EXT ON closed, close the input condition line corresponding to the schedule number selected. Refer to the schedule number selection table in Chapter 2, Section 3.
Laser Output When Controlled From The Control Panel. When the [LASER START] switch is pressed, the flash lamp flashes. An Nd:YAG laser beam will be allowed to be input into the fiber optic cable. When Externally Controlled. When the laser start input signal is closed, the flash lamp flashes. An Nd:YAG laser beam will be allowed to be input into the fiber optic cable.
Precautions for Operation Outlet of Optical fibers. When the optical fibers are not connected, be sure to install unopened fiber guides to the fiber outlet of the laser. (Three fiber guides are attached.) If the fiber guides are opened, the scattered laser will come out and dust will enter. Maintenance Door.. When operating the laser, be sure to close the maintenance door. This door is equipped with a defeatable interlock switch. By using this switch, the laser can be operated during maintenance work. During normal operations, do not operate the laser with this door open. If the laser is operated in this manner, the cooling efficiency of the fan cooler will lower and the laser cannot be cooled sufficiently.
PROCOPS.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 3-17 CHAPTER 4 USER MAINTENANCE
SECTION 1: PRECAUTIONS Before starting any maintenance, read the following precautions carefully: C Read through the entire specific instructions, including all caution and warning messages, BEFORE starting any maintenance procedure. C Turn OFF the power to the laser before starting maintenance work. Wait for 5 minutes after turning OFF power before starting work. C The Nd:YAG laser becomes ready for oscillation if the high voltage is turned ON during maintenance work. Use extreme caution while performing any work on the laser. WARNING: Maintenance workers or anyone who is subject to possible Nd:YAG laser beam exposure must wear safety goggles having a minimum optical density of 6 at 1.064 nanometers wavelength.
SECTION 2: COOLER MAINTENANCE WARNING: Before working on the cooler, turn off power to the laser unit. If the high voltage has been ON, wait at least 5 minutes for the capacitor to fully discharge before proceeding. Air Filter Cleaning. To clean the air filter:
AIRFLTR.PCX 1. Remove the filter holder panel by removing the screws with a Phillips screwdriver.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 4-1 CHAPTER 4: USER MAINTENANCE
Air Filter Cleaning (continued) 2. Remove the filter and rinse it with tap water. If it is extremely dirty, wash it with a mild detergent. 3. Air dry the filter thoroughly. Replace it and secure it with the filter holder panel and screws.
Replacing the Ion Exchange Resin Cartridge and the Deionized or Steam-Distilled Water. The ion exchange resin cartridge and the deionized or steam-distilled water should be replaced approximately every 6 months. The tools and materials you will need are: C Plastic (vinyl) gloves C Ball-head Allen wrench screw driver, 3 mm C Special tool for removal/replacement of the ion exchange resin cartridge
Draining the Deionized or Steam-Distilled Water. Note: The heat exchange coolant water is to be partly/completely drained under the following conditions: C When moving or transporting the laser. C When replacing the existing flash lamp. C When the laser will be in long-term storage. C When replacing the ion exchange resin cartridge. C When the ambient temperature drops below 0o C. C When replacing the existing deionized or steam distilled water. Three separate procedures cover the above six conditions. Select the proper procedure identified by its title. There are two circumstances where water drainage is not needed: When replacing the water tank small water filter only, and when only cleaning that filter. Cleaning or Replacing the Small Water Filter. 1. Remove the two thumb screws on the water tank cover, and remove the cover.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 4-2 CHAPTER 4: USER MAINTENANCE
Cleaning or Replacing the Small Water Filter (continued) 2. Using vinyl gloves remove the small water filter located behind the resin cartridge. This filter may be removed more easily if it is twisted while it is being pulled upward. 3. If it is to be cleaned, clean off all dirt in the mesh with a soft brush, then remount it. Insert it until it is fully seated on the bottom post. 4. If it is to be replaced with a new filter, discard the old filter. Insert the new filter until it is fully seated on the bottom post. 5. Check the water tank fill level and add water if needed. 6. Reattach the water tank top cover using the two thumb screws.
Replacing the Ion Exchange Resin Cartridge and the Coolant Water To replace the ion exchange resin cartridge and the deionized or steam-distilled water: 1. Remove the thumb screw on the drain pipe clamp in the front of the D.I. water tank. Remove the cap on the end of the drain pipe and drain the D.I. water from the tank by rotating the flexible drain pipe tube until the outlet end is below the inlet end. Water may be drained into a shallow pan, or floor drain system. HETXCHNG.PCX 2. Remove the lid of the D.I. water tank by removing two thumb screws. Using the special tool for the ion exchange resin cartridge, turn the cartridge in the tank counter-clockwise to remove the cartridge. Discard the cartridge.
GLVTOOL.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 4-3 CHAPTER 4: USER MAINTENANCE
Replacing the Ion Exchange Resin Cartridge and the Coolant Water (continued) 3. Remove the small water filter located behind the resin cartridge. This filter may be removed more easily if it is twisted while it is being pulled upward. 4. If this filter is to be retained, clean off the dirt in the mesh with a soft brush, otherwise discard this filter. 5. If retaining this water filter reinstall it, otherwise install a new filter. Insert the filter until it is fully seated on the bottom post. 6. Insert a new ion exchange resin cartridge in the water tank by turning it clockwise using the special tool. Stop turning the cartridge when it becomes slightly hard to turn. CAUTION: Do not over tighten the cartridge. Over tightening may damage the threads. 7. Reinstall the drain pipe and its cap, then fill the tank with deionized or steam- distilled water up to the upper level mark.
8. Reattach the water tank top cover using the two thumb screws. Replacing the Existing Flash Lamp. This procedure, in which water is drained from the laser chamber, is given in Chapter 5 of this manual.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 4-4 CHAPTER 4: USER MAINTENANCE
Replacing Existing Deionized or Steam-Distilled Water. Note that this procedure is to be used whenever only the coolant water is to be replaced, not when the coolant water and the ion exchange resin cartridge are replaced at the same time. 1. Loosen the stopper bolt in the laser chamber water drain hole. Breaking the vacuum will allow the water in the laser chamber and its hose to drain into the water tank. 2. Remove the thumb screw on the drain pipe clamp. Remove the drain pipe cap. Rotate the flexible drain pipe tube until the outlet end is below the inlet end to drain the water into a shallow pan, or floor drain system. STPRBOLT.PCX 3. Fasten the drain pipe and replace the end cap. 4. Fasten the stopper bolt in the laser chamber drain hole. 5. Remove the two thumb screws on the water tank cover, and remove the cover. 6. Fill the tank to the upper level mark with deionized water or steam-distilled water. 7. Reattach the top cover using the two thumb DIWATER.PCX screws.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 4-5 CHAPTER 4: USER MAINTENANCE
Replacing Existing Deionized or Steam-Distilled Water (continued) 8. Following the Operating Instructions run the laser for about 30 seconds, then power it off. This will allow the laser chamber to fill with water. 9. Recheck the fill level of water in the water tank, remove tank cover, add water to upper level mark, and replace tank cover.
Coolant Water Draining: For Long Term Storage; When Transporting the Laser; or When Temperature Drops Below 0o C. When the laser is not used for a long period; when the laser is to be transported; or when the ambient temperature will drop below 0o C, the cooling system water must be completely drained. Note that transporting by air or truck may subject the unit to freezing temperatures. To completely drain the cooling system water: 1. Loosen the stopper bolt in the laser chamber water drain hole. Breaking the vacuum will allow the water in the laser chamber and its hose to drain into the water tank. 2. Remove the thumb screw on the drain pipe clamp. Remove the drain pipe cap. Rotate the flexible drain pipe tube until the outlet end is below the inlet end to drain the water into a shallow pan, or floor drain system. 3. Remove the two thumb screws on the water tank cover, and remove the cover. 4. Using the special tool for the ion exchange resin cartridge, turn the cartridge in the water tank counter-clockwise and remove the cartridge. Store the cartridge in a sealed plastic bag or container in a cool dark place to avoiding dryness and freezing temperatures. 5. Remove the four Phillips head screws from the side panel air filter, then remove the air filter. Gain access to the pump. Remove the clamp on the hose connected to the pump outlet, then remove the hose end by lightly turning the end with a pair of pliers. CAUTION: When compressed air is sent to the water tank while the lid is on, the tank may burst. Be sure the tank lid is removed prior to performing the next steps. 6. Use clean compressed air, at 30 psi maximum pressure, to blow out any remaining coolant water in the hose. 7. Blow air into the hose connection joint to remove residual water in the tank. Blow
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 4-6 CHAPTER 4: USER MAINTENANCE
air into both the hose end, and the port it was removed from.
Coolant Water Draining: For Long Term Storage; When Transporting the Laser; or When Temperature Drops Below 0o C (continued) 8. When the water is completely drained, return the hose to its original position, and clamp it in place. 9. Reconnect the side panel air filter, the water tank cover, the water tank drain pipe and cap, and the stopper bolt in the laser chamber water drain hole. CAUTION: The ion exchange resin cartridges lose their efficiency when they become dried. If the cartridge is to be used again, place it in a plastic bag or an air tight container and store it in a cool, dark place. Note that the total shelf life of this cartridge is 6 months, therefore date records should be kept.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 4-7 CHAPTER 5 SERVICE
SECTION 1: LASER HEAD Flash Lamp Replacement [Tools and Materials Needed] C Clean cloth C Ball point drivers, 2.5 mm and 4 mm C Phillips screw driver C Plastic (vinyl) gloves 1. Turn off the power to the laser. WARNING: Wait for 5 minutes after turning off the power before starting work. 2. Remove the oscillator cover. 3. Loosen the stopper bolt in the laser chamber water drain hole. Breaking the vacuum will allow the water in the laser chamber and its hose to drain into the water tank. When the water is drained, replace the stopper bolt.
OSCILCVR.PCX
STPRBOLT.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-1 CHAPTER 5: SERVICE
Flash Lamp Replacement (continued) 4. Remove the electrode cover. 5. Remove the flash lamp lead wires and the upper chamber so that the inside of the chamber is visible. Place the upper chamber upside down on a piece of clean cloth.
ELECTCVR.PCX
6. Verify that the glass plate in the lower chamber is free of contami-nation. CAUTION: Be sure not to scratch or stain the UPRCHAMB.PCX glass. Scratched or stained glass will reduce the laser output. 7. Straighten the flash lamp lead wires and remove the lamp holders on both sides of the upper chamb-er by pulling them over the lamp lead wires. Remove the O- rings on both ends of the flash lamp in the same manner.
GLASPLAT.PCX
LAMPHLDR.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-2 CHAPTER 5: SERVICE
Flash Lamp Replacement (continued) 8. Slowly pull out the flash lamp from one end. During this time be sure to keep the lamp lead wires straight so that the terminal at the end of the lead wire does not scratch the reflective surface of the chamber. Also be careful not to damage the flash lamp by accidentally hitting it on a hard surface, such as the pump chamber.
GLOV2.PCX
CAUTION: Do not touch the glass part of the flash lamp. Clean the glass with alcohol prior to installing the flash lamp. 9. Straighten the lead wires on the new flash lamp and insert it into the upper chamber. Make sure that the lamp leads are installed in the same direction as the one being replaced. 10. Fit the O-rings over the lead wires on both ends of the flash lamp. Seat the flash lamp in the upper chamber. Verify that the O-rings are intact and seated in the ends of the upper chamber. Re-place damaged O-rings to prevent a possible water leak.
ORING.PCX 11. Install the lamp holders on both ends of the upper chamber in the same manner. Tighten the bolts while confirming that the O- rings fit in the notches.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-3 CHAPTER 5: SERVICE
Flash Lamp Replacement (continued) 12. When the upper chamber is assembled, mount it on the lower chamber correctly by matching the two locating pins. Before mounting the upper chamber, verify that the glass plate is properly positioned on top of the reflector in the lower chamber. 13. Bolt the flash lamp lead wires to the terminal block and replace the electrode cover. 14. Pull the tip of the oscillator cover interlock switch and set it to the maintenance mode. When the power is turned ON in Step 15, the warning lamp lights and indicates that the interlock is disabled. 15. CAUTION: Before proceeding to Step 16, verify that the four bolts fastening the top chamber to the bottom chamber, and the stopper bolt in the laser chamber drain hole, are tightened. 16. Turn the MAIN POWER switch to the ON position. Confirm that there is no water leak by turning on the key switch and activating the cooler. ALARM.PCX
17. Check the water level to verify that it is within limits. 18. Lightly loosen the stopper bolt in the drain hole in the laser chamber. When air bubbles come out and the water begins to flow out continuously, tighten the stopper bolt. 19. Verify that the laser functions normally. 20. Turn off the MAIN POWER switch. 21. Replace the oscillator cover.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-4 CHAPTER 5: SERVICE
Alignment Of The Beam Into The Fiber Optic Cable Preparation. To prepare for aligning the beam: 1. Remove the oscillator cover.
OSCILCVR.PCX 2. Pull the tip of the oscillator cover interlock switch and switch it to the maintenance mode. 3. Turn ON the power to the laser. The alarm lamp will light, indicating that the interlock is disabled. 4. Turn ON the key switch. 5. Turn OFF the high voltage (HV: OFF). 6. Turn ON the aiming laser beam (POSITION: ON).
ALARM.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-5 CHAPTER 5: SERVICE CHAPTER 5: SERVICE
Burn Pattern Adjustment. To adjust the burn pattern: 1. Set the unit to the Service Mode No. 1 or set the laser output to 300 volts and 0.8 to 1.0 milliseconds. 2. Turn on the high voltage (HV). 3. Open the main (resonator) shutter (MAIN SHUTTER). 4. Place a sheet of black paper on the optical axis of the Nd: YAG laser beam, a short distance from, and on the output side of, the M4 mirror. 5. Push the laser start switch. The black paper will be slightly burned and a burn pattern will be obtained. 6. Rotate the N1 and N2 adjustment nuts of the M3 mirror so that the burn pattern becomes circular. (A circular burning pattern has an interference LASER44.PCX fringe.) CAUTION: The circular burn pattern will cause the paper to burn more intensely, thereby producing more smoke and flame. Lower the voltage or shorten the pulse width so that the optical parts will not be stained. Z - Axis Adjustment. To adjust the Z-axis: 1. Remove the branch unit cover.
SHARUNIT.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-6 CHAPTER 5: SERVICE
Z - Axis Adjustment (continued) 2. Remove the branch unit cover plate. If the HV is ON at this time, it will automatically shut OFF. If there is any abnormality, the laser will need to be reset.
BRANCH.PCX
3. Remove the fiberscope holder from the storage position and mount it to the branch mirror position in the branch base. Mount the fiberscope in the holder. 4. Attach the fiber optic cable to the input focusing unit. 5. Remove the rubber cap from the output end of the fiber optic cable. Stabilize the fiber in a position where the light FIBRSCOP.PCX from a fluorescent lamp or other light source enters the fiber. CAUTION: Be careful to avoid dust or dirt contamination of the fiber end face, and do not exceed the minimum bend radius of the fiber during this procedure.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-7 CHAPTER 5: SERVICE CHAPTER 5: SERVICE
Z - Axis Adjustment (continued) 6. Loosen the lens tightening screw on the input focusing unit. 7. Open the shutter.
LNSMOUNT.PCX
WARNING: Verify that the HV is turned OFF before looking into the fiberscope. Viewing the laser beam through the fiberscope should be comfortable to the eye. During the axis adjustment procedure, use a neutral density (ND) filter, Part No. 318-011, to reduce the brightness of the laser beam as viewed through the fiberscope. Referring to the following diagram, locate the filter in any one of the indicated positions.
LW10FLTR.WPG
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-8 CHAPTER 5: SERVICE
Z - Axis Adjustment (continued) 8. While looking at the end of the fiber through the fiberscope, adjust the guide beam to form the smallest point possible by turning the focus adjustment ring on the input focusing unit. FCUSADJ.PCX
Note: The brightest guide laser beam spot reflected from the mirrors may not always belong to the direct (fundamental) aiming beam. To determine which spot belongs to the true direct aiming beam, rather than a ghost beam, check the burn pattern at the entrance to the input focusing unit (refer to Burn Pattern Adjustment as previously described in this chapter).
LW5XBM.WPG
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-9 CHAPTER 5: SERVICE CHAPTER 5: SERVICE
Z - Axis Adjustment (continued) 9. Observe the end face of the optical fiber through the fiberscope.Turn the adjustment screw ring clockwise from the position set in Step 8 according to the chart below (titled Adjustment Screw Ring Turns Required for Defocus) per fiber size. Note: Only the branch mirror's rear reflection beam
moves to the left. ENDFACE.PCX 10. Tighten the lens tightening screw on the input focusing unit.
Adjustment Screw Ring Turns Required for Defocus
Fiber Diameter Adjustment Screw Ring (mm) Clockwise Turns 0.2 0.5 0.3 1.0 0.4 1.5 0.6 2.0 0.8 2.0 1.0 2.0
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-10 CHAPTER 5: SERVICE
1.2 2.0
CAUTION: If the branch mirror holder is moved, readjust it so that the reflection from the branch mirror enters the center of the lens on the input focusing unit at an input angle of 0o. CAUTION: The input focusing end surface of the fiber may be burned if the guide beam does not match the Nd: YAG laser beam axis and the Nd: YAG beam enters the fiber off center.
X - Y Axes Adjustment. To adjust the X and Y axes: 1. Loosen the lock nut on the X - Y axes adjustment screw on the input focusing unit.
LOCKNUT.WPG Note: The brightest guide laser beam spot reflected from the mirrors may not always belong to the direct (fundamental) aiming beam. To determine which spot belongs to the true direct aiming beam, rather than a ghost beam, check the burn pattern at the entrance to the input focusing unit (refer to Burn Pattern Adjustment as described previously in this chapter). 2. While monitoring the end sur-face of the optical fiber through the fiberscope, adjust the X - Y axes X-YAXIS.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-11 CHAPTER 7: USER MAINTENANCE CHAPTER 5: SERVICE
adjustment screw so that the guide beam comes to the center of the end surface. The beam on the left is the rear reflection beam from the branch mirror. Do not confuse the beam with the guide beam on the right.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-12 CHAPTER 5: SERVICE
X - Y Axes Adjustment. (Continued) 3. Tighten the lock nut and the X - Y axes adjustment screw. Look into the fiberscope and verify that the direct guide laser beam is located at the center of the fiber end face.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-13 CHAPTER 5: SERVICE
SECTION 2: OPTICAL PARTS Cleaning The Optics Unlike general mechanically processed parts, the surfaces of optical components are unusable when they are scratched or burned. Please use extreme care when handling any optical components. To clean optical components, use the air blower, ring wrench, acetone and lens cleaning paper. CAUTION: Do not use any other materials for optical component cleaning. Note: Please contact the factory if you wish to do maintenance work on the optical components other than the input focusing unit and the optical fiber. Optical Component Maintenance Tools and Materials. The required maintenance tools and materials are illustrated below:
AIRSPRNG.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-13 CHAPTER 5: SERVICE
Removing the Input Focusing Unit Optics. To remove the input focusing unit optics for cleaning: 1. Remove the input focusing unit from the laser. 2. Remove the threaded ring by turning it. 3. Hold down two sheets of lens paper on the lens holder end of the input focusing unit. 4. Slowly turn the input focusing unit upside down so that the lens paper is on the bot-tom. 5. Place the input focusing unit gently on a work surface while keeping the lens paper on the bottom. 6. Slowly lift the input focusing unit. If the focusing lens does not come out, gently shake the input focusing unit vertically. 7. Remove the collar, focusing lens and Teflon ring one by one from input focusing unit. The focus-in lens should be held by the edge. Place the focusing lens on the lens paper.
COLRLENS.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-14 CHAPTER 5: SERVICE
Cleaning a Dusty Or Dry-Dirt Coated Optic. To clean an optic that is dusty or coated with dried dirt: 1. Hold the optic horizontally by the edges. 2. Blow off the dust and dry dirt using an air blower. 3. Observe the reflection of fluo-rescent light on the optic and verify that there is no dust or dry dirt remaining on the DRTDST.PCX optic.
Cleaning a Contaminated Optic. To clean an optic that is fogged or contaminated with other than dust or dry dirt: 1. Hold the optic horizontally by its edges. 2. Place one small drop of acetone in the center of a sheet of lens paper. 3. Contact the optic completely with the wet part of the lens paper. Any gap between the optic and the lens paper may result in uneven cleaning. 4. Wipe the optic with the FOGGING.PCX lens paper by pulling one end of the lens paper slowly and steadily until the other end of the lens paper
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-15 CHAPTER 5: SERVICE
comes off the optic. Any gap created between the lens paper and the optic during wi- ping, as well as acetone remain-ing at the end of the lens paper without evaporating, may result in uneven cleaning.
Cleaning a Contaminated Optic (continued) 5. Shine a fluorescent lamp onto the cleaned parts to confirm that no dirt or dust remains. Reassembling the Optical Components. To reassemble the optical components in the input focusing unit: 1. Assemble the optical components in the reverse order of their removal. 2. After assembling the optical components, verify that there is no dust, dirt or uneven cleaning spots. Be sure that the optics do not collect any dust or dirt during installation. Optical Fiber Cleaning. To clean the optical fibers: 1. Remove the optical fiber from the mating connector. 2. Blow away any dust on the end surface of the OPTC1FIB.PCX fiber. 3. If Step 2 does not remove the dust on the end surface, softly wipe it with a piece of lens paper. CAUTION: Do not press the lens paper against the end surface
of the optical fiber. It OPTCFIB2.PCX
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-16 CHAPTER 5: SERVICE
may scratch the fiber end face. 4. Verify that there is no dust or dirt on the end face of the fiber.
NOTE: We recommend a fiber end face checker for viewing the end surfaces of the optical fibers for scratches, dust or burns.
SECTION 3: POWER SUPPLY Backup Battery Replacement To replace the backup battery: 1. Turn off the main power. 2. Remove the right side cover. 3. Cut the band of the battery on the main PCB with wire cutters. 4. Disconnect the used battery from the connector and connect a new battery. 5. Pass a new band through the hole on the main PCB, then secure the battery in position. 6. Install the right side cover.
Fuse Replacement CAUTION: Rectify the cause of the blown fuse before replacing it. To replace the fuses: 1. Turn off the main power. LW10BAT.WPG 2. Remove the right side panel. The 1 amp fuse is located on the power PCB. The 10 amp fuse is located
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-17 CHAPTER 5: SERVICE
on the power supply PCB. 4. Replace the blown fuse with a new one. 5. Install the right side panel.
SECTION 4: TROUBLESHOOTING
Malfunction Indications Any malfunction occurring in the unit is indicated on the control panel screen. Up to four malfunctions can be indicated simultaneously as follows:
!!!TROUBLE!!!
E01: POWER SUPPLY COVER OPENED E02: HEAD COVER OPENED E03: HIGH TEMPERATURE OF COOLANT E04: LOW TEMPERATURE OF COOLANT
HV: OFF MAIN-SHUTTER: OFF POSITION: OFF
The first trouble indication line (E01), for example, gives the trouble code number (EO1:) and the source of the trouble (POWER SUPPLY COVER OPENED).
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-18 CHAPTER 5: SERVICE
Malfunction Check List Check the control panel screen indication and rectify the trouble according to the following table:
Malfunction Check List (continued)
Code Indication on High Abnormal Remedy No. Control Panel Screen Voltage Output
00 Communication Line Error – – Trouble has occurred in the communi- cation line between the laser power supply and the control panel (program unit). Turn off the circuit breaker. Wait at least 5 seconds, then turn on the circuit breaker . If there is an electrical noise source near the laser, move the noise source far away or suppress the noise.
01 Power Supply Cover Opened OFF ON There are cover interlock switches at four places on both side panels, the maintenance door, and the rear panel of the laser. The cover is removed or its mounting screws are loose. Secure the cover with the screws.
02 Head Cover Opened OFF ON The laser oscillator cover is removed. Install it.
03 High Temperature of Coolant OFF ON Check for clogging in the air cooling intake or the vent opening. If the air filter in the intake is dirty or clogged, clean it. If the ambient temperature is over 30°C, lower it to below 30°C.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-19 CHAPTER 5: SERVICE
Code Indication on High Abnormal Remedy No. Control Panel Screen Voltage Output
04 Low Temperature of Coolant – ON This message appears when the D.I. water temperature does not reach 5°C within 30 minutes after the power is turned on. Turn off the power, raise the ambient temperature and turn on the power .
05 Low Flow Rate of Coolant OFF ON D.I. water flow rate is low. This is caused by a clogged water filter or screen in the oscillator due to debris. Remove the debris or clean the water filter.
06 Low Coolant Level OFF ON D.I. water level is low. Add D.I. water. 07 Deionize Caution (****MS*cm) – – Purity of D.I. water has dropped. Leave the cooler running for 20-30 minutes. If the problem persists, replace the ion exchange resin cartridge. Deionize Trouble (****MS*cm) OFF ON Purity of D.I. water has dropped. Leave the cooler running for half an 08 hour or so. If the problem still exists, replace the ion exchange resin cartridge.
09 Simmer Trouble OFF ON Check for any abnormalities in the flash lamp. If there are any, replace the flash lamp. This signal may be caused by poor D.I. water quality. Proceed with the “Deionize” procedure.
10 Emergency Stop OFF ON The emergency stop signal is entered. Close the E-Stop input line in the EXT I/O or the remote interlock input line. Or, release the E-Stop switch on the control panel.
11 Charge Trouble OFF ON This condition occurs when the laser power supply’s capacitor charging takes too long or the charge voltage is too high. Check to see if the input power supply capacity is low or if the power cable is too small. Examine the 10A fuse in the power supply. If it is blown, replace it.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-20 CHAPTER 5: SERVICE
Code Indication on High Abnormal Remedy No. Control Panel Screen Voltage Output
12 Rate Over – ON The flash lamp’s input power is over the rating because the repetition rate is too high. Reduce the repetition rate.
13 Main Shutter Trouble OFF ON The start signal is entered during the branch shutter’s transition period. Allow more lead time for the laser start signal input after the beam selection signal is entered.
18 No Light – – The laser output is below 0.5 J.
19 Over Limit of Laser Power – – Reconfirm the upper limit of the set value. Change the upper limit.
20 Under Limit of Laser Power – – Verify the lower limit setting or the flash lamp. Change the setting or replace the flash lamp.
24 Memory Trouble – ON Memory backup lithium battery charge is low. Replace the battery.
25 Set Error Over Limit of Max – ON The input power setting is beyond the Power maximum capacity (voltage, pulse width, repetition rate). The setting will be restored to the values before the change.
26 Fiber 1 and/or Cable OFF ON The optical fibers are disconnected or Unconnected the trouble detection cable connector is disconnected. Connect them securely. 27 Fiber 2 and/or Cable Unconnected
28 Fiber 3 and/or Cable Unconnected.
29 Bank Alarm OFF ON Frequent condition change activates the thermostat inside the capacitor bank. Increase the interval of the condition changes. The cooling fan motor’s air filter is clogged in the rear of the laser. This caused the overheating of the power supply. Clean the filter.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-21 CHAPTER 5: SERVICE
Code Indication on High Abnormal Remedy No. Control Panel Screen Voltage Output
32 Laser Start Is Not Ready – ON The start signal is entered when charg- ing is not complete. Increase the inter- vals of the laser start signal input. Or, allow more lead time for the laser start signal input after condition change.
36 Branch Unit Cover Opened OFF ON The branch unit cover is opened or its screws are loose. Close the cover and tighten the screws.
Reset the laser with [RESET] key on the control panel, or input Trouble reset signal through the EXT-I/O.
SECTION 5: PARTS LISTS Accessory Kit An accessory kit, Part No. 4-60279-01, is supplied with the LW10/LW15 Laser. The accessories are listed in the following table. Accessory Kit Contents
Part Number Qty Fuse, 1 amp, 250 V 330-011 1 Fuse, 10 amp, 500 V, 3AG, CER 330-078 1 Hex ball driver, 2.5 mm 770-035 1 Hex ball driver, 3 mm 770-036 1 Hex ball driver, 4 mm 770-037 1 Fiber scope FOS-02 1 Gloves Emboss L 1 pr Ion exchange resin cartridge MLF- 1 wrench 0005A Label, small P-0211 2 Label, medium P-0212 2
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-22 CHAPTER 5: SERVICE
Label, large P-0213 2 Label, Invisible Laser Beam PL-0090 2 User’s Manual 990-510 1 Hand pump PH-10 1 Distilled water 900-241 1
Spare Parts Kits Spare parts kits are obtainable from Unitek Miyachi in three levels, as follows: Level I, Kit PN 8-636-01 Level II, Kit PN 8-636-01-01 Level III (LW10), Kit PN 8-636-01-02 Level III (LW15), Kit PN 8-636-01-03 Spare Parts Kit Contents
Part Part No. Qty Kit Level Circuit breaker, W/GF1 240-055 1 III Laser header, 10 circuit 250-331 1 III Terminal, male 253-071 12 III Terminal, female, 1 mm 253-072 12 III LCD display module 270-037 1 III Fan, 95 cfm, 120 V 305-025 1 II,III Fan, 300 cfm, 120 V 305-026 1 II, III Laser water pump TMC-50B 1 III
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-23 CHAPTER 5: SERVICE
Part Part No. Qty Kit Level Fuse, 1 amp, 250 V 330-001 1 I,II,III Fuse, 10 amp, 500 V, 3AG, CER 330-078 1 I,II,III Laser glass plate 4-35229-01 1 I,II,III YAG rod, 6.37 mm x 87 mm (LW10) 4-60188-01 1 III 8.00 mm x 87 mm (LW15) 4-60491-01 O-ring, 6 mm (LW10) 570-151 2 I,II,III 8 mm (LW15) 570-153 O-ring, 12 mm 570-155 2 I,II,III O-ring, 4.25 mm 570-157 1 I,II,III O-ring, silicon rubber 4-60020-01 3 I,II,III Diode laser LDP6355-MLT3 1 III Rotary solenoid 4-60039-01 2 III Laser program PCB assy ME-1585 1 III Laser main PCB assy ME-1743 1 III Laser trigger PCB assy ME-1742 1 III Laser capacitor PCB assy ME-1741 1 III Laser control PCB assy ME-1761 1 III Filter assy 318-009 1 II,III Water filter cartridge MLF-0006 1 I,II,III Deionized water cartridge 318-012 1 I,II,III Laser water pump TMC-50B 1 III Flash lamp assy MLD-0601 1 I,II,III Plug, male, 4 conductor 520-120 3 III Receptacle, female, 4 conductor 550-074 3 III
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-24 CHAPTER 5: SERVICE
Part Part No. Qty Kit Level Relay, PCB mounting 555-118 2 II,III Relay, DPDT, 3 amp, 24 VDC 555-115 2 II,III Switch, interlock 680-171 10 II,III Switch, emergency 680-316 1 II,III Switch, pushbutton 680-317 1 II,III Switch, momentary, 1 amp 680-318 1 II,III Switch guard 680-319 1 II,III Switch, snap action 680-320 2 II,III Caster, 50 mm 760-001 4 III Keyswitch S-9-90-B-1 1 II,III
SECTION 6: REPAIR SERVICE If you have problems with your LW10/LW15 Laser that you cannot resolve after reading Section 4, Troubleshooting, in this chapter and taking the steps recommended in it, please contact our laser service department at: Unitek Miyachi Corporation 1820 So. Myrtle Avenue P. O. Box 5033 Monrovia, CA 91017-7133
Phone: (626) 303-5676 FAX: (626) 358-8048
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-25 CHAPTER 5: SERVICE SECTION 7: WARRANTY 1. Warranty Period: One year from date of receipt. During the Warranty Period, repair service will be provided free of charge for problems that arise when the laser is used in the proper manner in accordance with the User’s Manual and/or our company's laser service technician's instructions. 2. During the warranty period and thereafter, repair services involving conditions other than those stated in Paragraph 1 will be provide on a fee paid service call basis. Call Unitek Miyachi Corporation for charges. These repair services include: (1) Problems and/or damage due to misuse or abuse or performance of improper service or maintenance by the customer. (2) After the laser is initial installed, it is damaged while it is being moved relocated by the customer. (3) Problems and/or damage due to severe voltage fluctuations, fires, earthquakes, floods, or Acts of God. (4) Use overseas. (5) Replacement of consumable parts. (6) Problems caused by use of parts purchased from sources other than Unitek Miyachi Corporation. 3. For repair service after the expiration of the warranty period or for parts purchase, please contact our laser service department.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 5-26 APPENDIX A TECHNICAL SPECIFICATIONS
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 A-1 APPENDIX A: TECHNICAL SPECIFICATIONS
TECHNICAL SPECIFICATIONS
Specification Item LW10 LW15 Oscillator: Rated Output (max) 10W (momentary max. 15W (momentary max. output: 30 W) (NOTE 1) output: 45 W) (NOTE 2) Peak Output 3 KW 3 KW Output Energy (max) 15 J/P 25 J/P Pulse Width 0.3 to 10.0 msec 0.3 to 10.0 msec Pulse Repetition Rate 1 to 10 pps 1 to 10 pps Wavelength 1.064µm 1.064µm Beam Diameter 6.35mm 8.0mm Number of Branches Single Single Aiming Beam Laser diode wavelength 650 Laser diode wavelength 650 nm (red) nm (red) Power Source: Mains Power 230 VAC (± 10%), 50/60 230 VAC (± 10%), 50/60 Hz, 1.5 kVA Hz, 1.5 kVA Voltage Settings 200 to 410VDC in 1 V steps. 200 to 430VDC in 1 V steps. Control Panel: Schedule Settings Charge voltage Pulse width (flash time) Power monitor alarm upper lower limits (only in energy monitor value "J") Repetition Rate Number of Repeats Power Monitor Energy Monitor (J) Average power (W) Counter Total shot counter: 8 digits Good shot counter: 8 digits Alarm display: Message appears on LED display Aiming/Guide Beam Functions: AUTO OFF function
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 A-2 APPENDIX A: TECHNICAL SPECIFICATIONS
Specification Item LW10 LW15 Fiber Core Diameters, 0.2, 0.3, 0.4, 0.6, 0.8, 1.0 mm SI or GI Cooler: Heat Exchange Method Air — D.I. (Deionized) Water or Steam-Distilled Water Ambient Temperature 5 - 30 oC Heat Exchange Capacity 430 kcal/h (1800KJ/hr) Coolant Medium: Deionized Water or Steam- 2 Gallons Distilled water — to Note: Use only deionized water or steam-distilled water as a provide water cooling for coolant medium. Laser action on steam-distilled water will the Laser Rod. deionize it and control its purity (electrical resistivity). Options: Laser Remote Controller When the laser controller is in use, only the E-stop button MLE-107A-01 and the key switch on the main control panel are operational.
External Communications RS-485 protocol Weight 71kg External Dimensions 700mm (H) x 310mm (W) x 665mm (D)
NOTES: 1 (For LW10): Laser power of 30 W can be output continuously for about 10 seconds maximum. Then, operation must be stopped for 20 seconds. Laser power of 20 W can be output continuously for about 15 seconds maximum. Then, operation must be stopped for 15 seconds. Laser power of 10 W can be ouput continuously.
2 (For LW15): Laser power of 45 W can be output continuously for about 10 seconds maximum. Then, operation must be stopped for 20 seconds. Laser power of 30 W can be output continuously for about 15 seconds maximum. Then, operation must be stopped for 15 seconds. Laser power of 15 W can be ouput continuously.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 A-3 APPENDIX A: TECHNICAL SPECIFICATIONS
External Dimension Diagrams
<< Dimensions are given in mm >>
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 A-4 APPENDIX B EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-1 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION CONTENTS 1. Introduction ...... B-3 2. Connections ...... B-3 3. Data Transfer ...... B-4 (1) Type...... B-4 (2) Baud Rate...... B-4 (3) Data Format...... B-4 (4) Character Code...... B-4 (5) Communication Control Code...... B-5 (6) Text Format ...... B-5 (7) BCC Calculation ...... B-5 4. Configuration ...... B-8 5. Contents of Each Command ...... B-9 (1) Data Setting ...... B-9 (2) Reading the Data...... B-10 (3) Setting the Status, control mode and schedule number ...... B-11 (4) Reading the Status...... B-12 (5) Laser start command ...... B-13 (6) Laser stop command ...... B-14 (7) Trouble reset command ...... B-14 (8) Total count reset command ...... B-15 (9) GOOD count reset command ...... B-15 (10) Reading an error...... B-16 6. Contents of Set Data and Monitor Data ...... B-16 (1) Common Data ...... B-16 (2) Data Under Each Schedule ...... B-17
7. Error List ...... B-17
PC-9801 Turbo-C Listing ...... B-19 LW10/LW15 EXTERNAL COMMUNICATION CHART ...... B-30 NOTES FOR LW10/LW15 CHART ...... B-31
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-2 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
1. Introduction An RS-485 interface is used for reading and setting schedules; and monitoring data and status of the LW10/LW15 Laser Unit from an external computer.
2. Connections To connect a host PC to the laser or several lasers:
Host Computer Serial Cable. Connects between the host computer serial port and the RS-232/RS- 485 converter ( ). Depending on the serial port to be used, the cable may be terminated as either: C Standard female 9-pin to female 25-pin, or C Standard female 25-pin to female 25-pin. RS-232/RS-485 Converter. The converter is a Telebyte Model 285. The manufacturer may be contacted at 1-800-835-3298. The converter DIP switch settings for this application are as illustrated at the right.
2. Connections (continued) Receive/Transmit Cable. This custom cable may be
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-3 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
fabricated by the user or supplied by Unitek Miyachi. The cable schematic is shown below: 3. Data Transfer
(1) Type: Conforms to RS-485, in an asynchronous, full-duplex party line. (2) Baud Rate: 9600 bps (3) Data Format: C Start bit : 1 C Data bit : 8 C Stop bit : 2 C Parity bit : 1 (even parity) (4) Character code: ASCII
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-4 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
3. Data Transfer (continued) (5) Communication control code:
Command Code Hex Value Description STX 02H Start of Text ETX 03H End of Text EOT 04H End of Transmission ENQ 05H Enquiry ID•ENQ 50H•30H•05H Identification Enquiry ACK 06H Acknowledge ID•ACK 54H•31H•06H Identification Acknowledge NAK 15H Not Acknowledge
(6) Text Format:
S E B T Text Block T C X X C Variable Text Length BCC Calculation Range
(7) BCC Calculation: BCC is the binary coded check sum. It is calculated by adding all bytes after STX and through ETX as listed in the following example C- program:
#include
#define STX 0x02 #define ETX 0x03 char command[300];
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-5 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
(7) BCC Calculation (continued)
/* calbcc: used to calculate BCC and concatinate BCC to the end of the string. NOTE: printf statement is only to help debugging. */ char calbcc(bf) char *bf; { char bcc; int n;
printf(“Command: %02X ”, bf[0]);
bcc = 0;
for (n = 1; ; n++) { printf(“%02X ”, bf[n]); bcc ^= bf[n]; if (bf[n] == ETX) break; }
printf(“ BCC: %02X\n”, bcc); bf[++n] = bcc; ] main() { /* Following statement compose a command string to read Repeated PPS of schedule 5 */ sprintf(command, “%c%02d%s%02d%02d%c”, /* String Format */ STX, /* Start of transmission code */ (7) BCC Calculation (continued)
0, /* Network Number = 0 */
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-6 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
“R”, /* Code for reading the data */ 5, /* Schedule Number = 5 */ 4, /* Data No = 4 (Repeated PPS) */ ETX); /* End of transmission code */ calbcc ( command );
/* Following statement compose a command string to read the status of shutters. */ sprintf( command, “%c%02d%s%c”, /* String Format */ STX, /* Start of transmission code */ 0, /* Network Number = 0 */ “RS”, /* Code for reading status */ ETX); /* End of transmission code */ calbbc( command );
/* Following statement compose a command string to set schedule 1 the pulse width to 2.0 ms. */
sprintf( command, “%c%02d%s%02d%02d%3d%c”, /* String Format */ STX, /* Start of transmission code */ 0, /* Network Number = 0 */ “W” /* Code for reading status */ 1, /* Schedule Number = 1 */ 1, /* Data No = 1 (pulse width) */ 20, /* Data value = 20 92.0 msec) */ ETX); /* End of transmission code */
clbcc( command ); } 4. Configuration
NOTE 1: Each device number is set by NETWORK # on the LW10/LW15 panel.
NOTE 2: Do not assign the same network number to more than
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-7 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
one device. If you do, a data collision will occur in the communi- cation lines and the units will not operate properly.
To change the network number: 1. Press the MENU key until the STATUS screen appears. 2. Use the arrow keys to move to the SERVICE MODE field. 3. Use the [+] to change to ON.
4. Press the ENTER key to enter the SERVICE MODE screen. 5. Use the [+] and [-] keys to change the network number. 6. Press the ENTER key to save the network number. 7. Press the MENU key to exit the SERVICE MODE screen.
5. Contents of Each Command
1. Data Setting Code: W
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-8 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
Host S C C S S D D E B Computer T H H W H H T T : data T C Side X 1 O 1 O 1 O X C
C C A C C N Laser Side H H C or H H A 1 O K 1 O K
(1) CH1 and CH0 are network numbers, where CH1 = number of tens and CH0 = number of units. (2) SH1 and SH0 are schedule numbers, where SH1= number of tens and SH0 = number of units. (3) DT1 and DT0 are data numbers, where DT1 = number of tens and DT0 = number of units. (4) For data numbers, refer to Section 6, Contents of Set Data and Monitor Data. (5) If the set data is within the setting range, [ACK] is returned. If the set data is out of the setting range, [NAK] is returned. (6) For System Setup, set the schedule number to [99] (refer to Section 6(1)). (7) If the data number is set to [99], write the data in one line, as follows: (Data No. 1), (Data No. 2), Data No.3), ---, (Last Data No.) Enter a comma (,) between data, excluding the monitor values (DI water temperature, total count, GOOD count, energy monitor value, peak power monitor value). (8) Valid only for external communication control. Return (NAK) for other control modes.
5. Contents of Each Command (continued)
2. Reading the data Code: R
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-9 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
Host S C C S S D D E B Computer T H H R H H T T T C X 1 O 1 O 1 O X C Side
S E B C C N Laser Side T d a t a T C or H H A X X C 1 0 K
(1) CH1 and CH0 are network numbers, where CH1 = number of tens and CH0 = number of units. (2) SH1 and SH0 are schedule numbers, where SH1 = number of tens and SH0 = number of units. (3) DT1 and DT0 are data numbers, where DT1 = number of tens and DT0 = number of units. (4) For data numbers, refer to Section 6, Contents of Set Data and Monitor Data. (5) For System Setup, set the schedule number to [99] (refer to Section 6(1)). (6) If the data number is set to [99], read the data in one line, as follows: (Data No. 1), (Data No. 2), (Data No. 3), ---, (Last data No.) Enter a comma (,) between data. (7) Return (NAK) when the schedule number or data number is out of range.
3. Setting the status, control mode and Code: W S schedule number.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-10 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
Host S C C S S c E B T H H WS H H n s s s s s s s T C Computer X 1 O 1 0 t 4 5 6 7 X C Side 1 2 3
C C A C C N H H C or H H A Laser Side 1 0 K 1 0 K
(1) CH1 and CH0 are device numbers, where CH1 = number of tens and CH0= number of units. (2) SH1 and SH0 are schedule numbers, where SH1 = number of tens and SHO = number of units. (3) cnt is the control mode. Cannot set to the external control or maintenance mode. : Sustain 0: Panel Control 1: External Control 2: Communication Line Control 3: Maintenance Note cnt: Other value must be set as a space ( ) to change the control mode.
P.Box Ext I/O Control Mode From Control Mode Communication Access Maint Mode Ext Control Line
Off Off 0: Panel Control 0: Panel Control
Off Off 1: External Control No Access
Off Off 2: Communication 2: Communication Line Control Line Control
Off Off 3: Maintenance No Access
Off On Ignore 1: External Control
On Ignore Ignore 3: Maintenance
3. Setting the status, control mode and schedule number (continued) (4) The schedule number can be changed within the range 00 to 07. Enter two spaces ( )
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-11 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
to sustain data. (5) s1: HV: 0 = OFF 1 = ON = Sustain s2: Laser Diode (LD): 0 = OFF 1 = ON = Sustain s3: Main (Resonator) Shutter: 0 = OFF 1 = ON = Sustain* *Note: Enter a space ( ) when the main shutter is not installed. s4: Branch Shutter 1 0 = OFF 1 = ON = Sustain s5: Branch Shutter 2 0 = OFF 1 = ON = Sustain s6: Branch Shutter 3 0 = OFF 1 = ON = Sustain s7: Laser Diode (LD) 0 = CW 1 = MOD = Sustain Modulation (6) Valid for external communication control only. Make all invalid, and return (NAK) when any of the changes cannot be made.
4. Reading the status Code: R S
Host S C C E B T H H T C Computer RS X 1 0 X C Side
S S S c s s s s s s s r E B Laser Side T H H n 1 2 3 4 5 6 7 d T C X 1 0 t y X C
(1) CH1 and CH0 are network numbers, where CH1 = number of tens and CH0 = number of units. (2) SH1 and SH0 are schedule numbers, where SH1 = number of tens and SH0 = number of units. (3) cnt is the control mode, where: 0: Panel Control 1: External Control 2: Communication Line Control 3: Maintenance
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-12 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
4. Reading the status (continued) (4) s1: HV: 0 = OFF 1 = ON s2: Laser Diode (LD): 0 = OFF 1 = ON s3: Main (Resonator) Shutter: 0 = OFF 1 = ON* Note: Enter 0 if the main shutter is not installed. s4: Branch Shutter 1 0 = OFF 1 = ON s5 Branch Shutter 2 0 = OFF 1 = ON s6 Branch Shutter 3 0 = OFF 1 = ON s7 Laser Diode Modulation 0 = CW 1 = MOD (5) rdy is the READY state, where: 0: Laser start impossible 1: Laser start possible
5. Laser start command Code: $ 0
Host S C C E B Computer T H H $0T C X 1 0 X C Side
C C A C C N Laser H H C or H H A 1 0 K 1 0 K Side
(1) CH1 and CH0 are network numbers, where CH1 = number of tens and CH0 = number of units. (2) If the laser can be started, [ACK] is returned. If the laser cannot be started, [NAK] is returned to the host computer. Causes preventing laser start are as follows: a. An error has occurred. b. HV is turned off. c. The capacitor has not been charged to the set voltage. d. The system is not selecting external communication control. (3) Valid for communication line control only. Return (NAK) for other control modes.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-13 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
6. Laser stop command Code: $
Host S C C E B Computer T H H $9T C X 1 0 X C Side
C C A C C N Laser H H C or H H A 1 0 K 1 0 K Side
(1) CH1 and CH0 are network numbers, where CH1 = number of tens and CH0 = number of units. (2) Valid only for communication line control. Rteturn (NAK) for other control modes.
7. Trouble reset command Code: C 0
Host S C C E B T H H T C Computer C0 X 1 0 X C Side
C C A C C N H H C H H A or Laser Side 1 0 K 1 0 K
(1) CH1 and CH0 are network numbers, where CH1 = number of tens and CH = number of units. (2) After receiving this command, the laser unit is released from the error schedule. (3) Valid for communication line control only. Return (NAK) for other control modes.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-14 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
8. Total count reset command Code: C 1
Host S C C E B Computer T H H C1 T C X 1 0 X C Side
C C A C C N Laser Side H H C H H A 1 0 K or 1 0 K
(1) CH1 and CH0 are network numbers, where CH1 = number of tens and CH0 = number of units. (2) After this command is received, the laser unit resets the total counter to 0. (3) Valid for communication line control only. Return (NAK) for other control modes.
9. GOOD count reset command Code: C2
Host S C C E B Computer T H H C2 T C X 1 0 X C Side
C C A C C N H H C H H A Laser Side or 1 0 K 1 0 K
(1) CH1 and CH0 are network numbers, where CH1 = number of tens and CH0 = number of units. (2) After this command is received, the laser unit resets the GOOD counter to 0. (3) Valid for communication line control only. Return (NAK) for other control modes.
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-15 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
10. Reading an error Code: R T
Host S C C E B Computer T H H RTT C X 1 0 X C Side
S E E E E E E E B Laser Side T , ------T C X 1 0 1 0 1 0 X C
(1) CH1 and CH0 are device numbers, where CH1 = number of tens and CH0 = number of units. (2) E1 and E0 are error numbers, where E1 = number of tens and E0 = number of units. All error numbers are transmitted. If it is normal, the error number is set to [00].
6. Contents of Set Data and Monitor Data (1) Common Data
Data No. Item Data Range Units
01 DI Water Temperature 000 - 999 °C
02 Fan Power 00 - 99 %
03 DI Water High Temperature Alarm 00 - 99 °C
04 DI Water Low Temperature Alarm 00 - 99 °C
05 DI Water Resistivity 000 - 999 0.01 MS
06 Total Count 00000000 - Units 99999999
07 Good Count 00000000 - Units 99999999
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-16 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
6. Contents of Set Data and Monitor Data (continued) (2) Data Under Each Schedule
Data No. Item Data Range Units
01 Pulse Width 003 - 100 0.1 msec
02 Charge Voltage 200 - 410 (LW10) Volts 200 - 430 (LW15)
03 Dummy Shot Count 00 - 99 Units
04 Repeated PPS 00 - 10 Units
05 Number of Repeated Shots 000 - 999 Units
06 Upper Limit Setting of Energy Monitor 000 - 999 0.1 J
07 Lower Limit Setting of Energy Monitor 000 - 999 0.1 J
*08 Energy Monitor Value 000 - 999 0.1 J
*9 Average Power Monitor Value 000 - 999 0.1 W Note: The values of the data numbers marked with an asterisk (*) are monitored values. These values can be read but not changed.
7. Error List
No. Error No. Error
00 Normal 19 Laser power upper limit error
01 Power supply cover open 20 Laser power lower limit error
02 Laser head cover open 21 Not used
03 Cooling water temperature 22 Not used high
04 Cooling water temperature 23 Not used low
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-17 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
No. Error No. Error
05 Cooling water flow rate low 24 Memory error
06 Cooling water level low 25 Set up value too high
07 Conductivity caution 26 Fiber 1 error
08 Conductivity abnormal 27 Fiber 2 error
09 Preliminary discharge 28 Not used abnormal
10 Emergency stop 29 Bank alarm
11 Charge abnornal 30 Not used (charge/discharge overtime)
12 Duty cycle too high (input 31 Not used power)
13 Main shutter error 32 Duty cycle over (charge not ready)
14 Branch Shutter No. 1 error 33 Initialize
15 Branch Shutter No. 2 error 34 Not used
16 Branch Shutter No. 3 error 35 Not used
17 Not used 36 Branch unit cover open
18 No light
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-18 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
PC-9801, Turbo C Prepared by Turbo C on an NEC Computer
/* ML-2331A maintenance service program */ /* ‘92. 6. 21 */
#include
#define CTLC (‘C’ - 0x40) #define CR 0x0d #define BS 0x08 #define STX 2 #define ETX 3 #define EOT 4 #define ENQ 5 #define ACK 6 #define NAK 0x15
#define YES 0 #define NO 1 #define OK 2 #define NG 3 #define TIMEOUT 0X800
#define S10DT 0x30 #define S10CS 0x32 char rs[64*99*2]; char tx-buf[64*99*2]; char id[2]; int tx-cnt; int tx-cntl;
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-19 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION main() { char c, *bfx, *bfy, *bfz, text; int x, y, n; bfx = "¥00200W9999:0000,19920625¥003"; bfy = "¥00200W1599:123,300,00,00,000,999,000,9999,0000¥003"; bfz = "¥002001599:010,020,030,040,050,0,1,0,300,250,11,12,013,014,015,0016,0017¥003";
/* initiates 18251 */
-CL = 0x0e; /*rs232c command */ -DL = 1; /* ch0 initialize function */ -BX = 0xfc08; /* 8 bits, 2 stop, even pari, xoff, 9600 baud */ geninterrupt(0xdc); p0: c = 0; clrscr(); gotoxy(1,1); cprintf("ML-2331A/ML-2332A (RS-485 monitor ‘92. 7. 1) exit... ^C network # ... e"); p1: gotoxy(1,3); cprintf("input NETWORK # ( 00 S 30 ) "); c=getch() if ((c >= ‘0')&&(c <= ‘9')){ id[0] = c; putch(c); } else
goto p1; c=getch(); if ((c >= ‘0')&&(c <= ‘9')){ id[1] = c; putch(c); } else goto p1; p2: gotoxy(1,4); cprintf("NETWORK # = [5c%c], id[0], id[1]); gotoxy(1,6); cprintf("input command"); gotoxy(1,8); cprintf("[X];write test data (control # /date)");
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-20 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
gotoxy((1,9); cprintf("[Y]:write test data (schedule No. 15 :1bank)"); gotoxy(1,10); cprintf("[Z]:write test data (schedule No. 15 :2bank)"); gotoxy(1,11); cprintf("[R]:read data [RS]:read status [RT]:read trouble"); gotoxy(1,12): cprintf("[W]:write data [WS]:write status [$]:laser start"); gotoxy(1,13); cprintf("[CO]:trouble reset [C1]:total.count reset [C2]:good.count reset"); gotoxy(1,15); cprintf("command type ? ["); clreo(); x = wherex(); y = wherey(); n = 3; gotoxy(x,y); - rs-clr(); /* rs[0 0xoff] ‘0' clear */ rs[0] = STX; rs[1] = id[0]; rs[2] = id[1]; while (1){ gotoxy(x,y); c = getch(); if (c == CTLC) exit(0); if (c == CR) break ; if (c == BS){ --x; gotoxy(x,y); cprintf(" "); --n; } else { putch(c); rs[n] = c; ++n; ++x; } } if ((rs[n-1] == ‘E’) || (rs[n-1] == ‘e’)) goto p0; if ((rs[n-1] == ‘X’) || (rs[n-1] == ‘x’)){ sprintf(rs, "%s",bfx); rs[1] = id[0]; rs[2] = id[1]; goto p3;
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-21 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
} if ((rs[n-1] == ‘Y’) || (rs[n-1] == ‘y’)){ sprintf(rs, "%s",bfy); rs[1] = id[0]; rs[2] = id[1]; goto p3; } if ((rs[n-1] = ‘Z’) || (rs[n-1] == ‘z’)){ sprintf(rs,"%s",bfz); rs[1] = id[0]; rs[2] = is[1]; goto p3; } cprintf("]"); rs[n] =ETX; p3 tx-cnt = set-bcc(rs); /* set bcc data */ gotoxy(1,20); clreol(); /* spase */ gotoxy(1,21); clreol(); gotoxy(1,20); cprintf("send character ["); for (n=0; rs[n] l= ETX; n++) putch(rs[n]); putch(rs[n]); cprintf("] ");
tx-ndat(rs, tx-cnt); /* send */ text = rx_text(); /* receive data */ gotoxy(1,22); clreol(); /* spase */ gotoxy(1,23); clreol(); /* spase */ gotoxy(1,22); cprintf("receive character ["); if (text == NG) goto p2; for (n=0; (rs[n] != ETX) && (rs[n] != ACK) && (rs[n] != NAK) && (rs[n] != ‘@’); n++){ c = rs[n] & 0x7f; putch(c); } putch(rs[n]); cprintf("]"); goto p2; }
d-set(xc, yc, cnt, t) char xc; char yc; char cnt; char t; /* rs[] top address */ { char c, x, n;
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-22 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
gotoxy(xc,yc); for (n=0; n < cnt; ){ /* control no. */ x=wherex(); c = getch(); If ((c >= ‘0')&&(c <= ‘9')){ putch(c); rs[t+n] = c; ++n; ++x; } If (c == CR) return; Gotoxy(x,yc); } }
d-set1(xc, yc, cnt, t) char xc; char yc; char cnt; char t; /* rs[] top address */
{ char c, x, n, m;
gotoxy(xc,yc); m = 0; for (n=0; n < cnt; ){ /* control no. */ x=wherex(); c = getch(); If ((c >= ‘0')&&(c <= ‘9')){ putch(c); rs[t+m] = c; If (n==1){ ++n; ++x; } ++m; ++n; ++x; } if (c == CR) return;
LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-23 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION
gotoxy(x,yc); } }
/* rs[] display the contents */ dsp-rs(t, n) char t; /* top address */ char n; /* data length */ { char i; for (I=0; i /* rs[] display the contents with decimal point */ dsp-rsl(t, n) char t; /* top address */ char n; /* data length */ { char i; for (I=0; i /* set bcc. Value of return is number of data */ set-bcc(bf) char bf[]; { char bcc; int n; bcc = bf[1]; for (n = 2; bf[n] != ETX; ){ bcc ^= bf[n]; ++n; } bcc ^= bf[n]; ++n; bf[n] = bcc; /* n = tx-cnt */ return n; } LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-24 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION /* transmit data until ETX is found */ tx-text() { int n; rts-on(); for ( n=0; rs[n] != ETX; n++) rsout(rs[n]); rsout(rs[n]); /* send bcc */ rts-off(); } /* transmit context of BF for ENT */ tx-ndat(bf, cnt) char bf[]; int cnt; { Int n; rts-on(); for ( n=0; n <= cnt; n++) rsout(bf[n]); /* send data */ rts-off(); } /* transmit id code */ tx-id(c) char c; { rts-on(); rsout(id[0]); /* ID code */ rsout(id[1]); rsout(c); /* ENQ / ACK */ rts-off(); } /* transmit RENEWD program */ tx-update() { p0; tx-id(ENQ); /* send id enq */ if (rx-idack() == NG) /* wait id ack */ goto p0; tx-buf[0] = rs[0]; /* STX */ tx-buf[1] = ‘+’; /* + */ tx-buf[2] = rs[2]; /* p */ LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-25 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION tx-buf[3] = rs[3]; /* s */ tx-buf[4] = rs[4]; /* s */ tx-buf[5] = ETX; set-bcc(tx-buf, tx-cntl); /* bcc and tx-cntl set */ tx-ndat(tx-buf, tx-cntl); /* send +pss */ if (rx-idack() == NG) /* wait id ack */ goto p0; tx-ndat(rs, tx-cnt); /* send text */ if (rx-idack() == NG) /* wait id ack */ goto p0; } /* receive until ETX is found */ rx-text() { int n, m, ex; unsigned int time; char bcc; n = 0; ex = 0; gotxy(1,17);clreol(); time = 0; while(1){ If (time == TIMEOUT) break; ++time; If (getsts()) { if (getch() == ‘E’) return NG; } if (getrssts()) { /* receive data check */ rs[n] = rsin(); time = 0; if (ex == 1) break; /* bcc */ if (rs[n] == ETX) ex = 1; if (rs[n] == ACK) || (rs[n] == NAK)) break; if (rs[n] == ‘0') break; ++n; } LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-26 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION } cprintf("receive end !!!"); if (time == TIMEOUT){ if (rs[n-1] == ETX) return OK; else { cprintf(" (time over)"); return NG; } } if (ex != 1){ if (rs[n] == ACK) || (rs[n] == NAK) || (rs[n] == ‘0')) return OK; else return NG; } bcc = rs[1]; for (m=2; m < n; m++) bcc ^= rs[m]; if (rs[n] I= bcc) return NG; return OK; } /* receive id-ack */ rx-idack() { char n, bf[3], c; cprintf(" wait ID ACK !!!"); for (n=0; n<3; ){ if (getsts()) { c = getch(); if (c == CTLC) exit(0); } if (getrssts()) { /* receive data check */ bf[n] = rsin(); ++n; } } if ((bf[0] == id[0]&&(bf[1] == id[1]&&(bf[2] -- ACK)) return OK; return NG; } LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-27 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION /* clear 256 byte on rs */ rs-cir() { int n; for (n=0; n < 0xff; n++) rs[n] = ‘0'; } /* RTS on */ rts-on() { char type; type = ‘R’; if (type == ‘T’) outport(SIOCS, 0x07); /* RTS 0 */ } /* RTS off */ rts-off() { char c; while((inport(SIOCS) & 0x04) == 0){ /* txemp ? */ if(getsts() { c = getch(); if(c == CTLC) exit(0); } } outport(SIOCS, 0x27); /* RTS 1 */ } /* get console status */ getsts() } -AH = 0x0b; /* function 0bh */ geninterrupy(0x21); -AH = 0 } /* get rs232c status */ getrssts() { -CL = 0x0e; /* rs232c command */ LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-28 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION -DL = 0; /* ch0 rx data get */ -BX = 0xf808; /* 7bits, 2 stop, even pari, xoff, 9600 baud */ geninterrupt(0xdc); } /* read a rs232c data */ rsin() { -AH = 0x03; /* function 03h */ geninterrupt(0x21); -AH = 0; } /* write a data to rs232c */ rsout(c) char c; { -AH = 0x04; /* function 04h */ -DL = c; geninterrupt(0x21); } LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-29 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION LW10/LW15 EXTERNAL COMMUNICATION CHART Code Description Text Construction – Host Side to LW10/LW15 LW10/LW15 Response W Data Set S C C S S D D E B C C A C C N Written data is out of range or T H H W H H T T :Data T C H H C or H H A control is not in the external X 1 0 1 0 1 0 X C 1 0 K 1 0 K communication mode. R Read Data S C C S S D D E B S E B C C N Schedule No. Or T H H R H H T T T C T Data T C or H H A Data No. is out of X 1 0 1 0 1 0 X C X X C 1 0 K range. W S Status Control Mode S C C S S c s s s s s s s E B C C A C C N Cannot set status or system is not Set Schedule No. T H H WS H H n 1 2 3 4 5 6 7 T C H H C or H H A in the external communication X 1 0 1 0 t X C 1 0 K 1 0 K control mode. R S Status Control Mode S C C E B S S S c s s s s s s s r E B Read Schedule No. T H H RST C T H H n 1 2 3 4 5 6 7 d T C X 1 0 X C X 1 0 t y X C $ 0 Laser Start Command S C C E B C C A C C N HV is off, voltage not reached set T H H $0T C H H C or H H A value during trouble, or system X 1 0 X C 1 0 K 1 0 K not in the external communication mode. $ 9 Laser Stop Command S C C E B C C A C C N Mode is not external T H H $9T C H H C or H H A communication control. X 1 0 X C 1 0 K 1 0 K C 0 Trouble Reset S C C E B C C A C C N Mode is not external Command T H H C0 T C H H C or H H A communication control. X 1 0 X C 1 0 K 1 0 K C 1 Total Count Reset S C C E B C C A C C N Mode is not external Command T H H C1 T C H H C or H H A communication control. X 1 0 X C 1 0 K 1 0 K C 2 Good Count Reset S C C E B C C A C C N Mode is not external Command T H H C2 T C H H C or H H A communication control. X 1 0 X C 1 0 K 1 0 K R T Read Trouble S C C E B S E E E E E E E B T H H RTT C T 1 0, 1 0 , . . . . . 1 0 T C X 1 0 X C X X C NOTES FOR LW10/LW15 EXTERNAL COMMUNICATIONS CHART LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-30 APPENDIX B: EXTERNAL COMMUNICATIONS INTERFACE SPECIFICATION Control Code in Hexadecimal: ACK: 06H NAK: 15H STX: 02H ETX: 03H Definitions: BCC: Block Check Code STX: Horizontal even parity ON and 1 byte at ETX except STX. CH1 = System No. 10 digit SH1 = Schedule No. 10 digit CH0 = System No. 1 digit SH0 = Schedule No. 1 digit DT1 = Data No. 10 digit DT0 = Data No. 1 digit E1 = Abnormality No. 10 digit (Transmit all abnormality numbers. When no abnormalities, E1 and E0 = 0.) E0 = Abnormality No. 1 digit s1 = HV s2 = Laser Diode s3 = Main Shutter s4 = Branch Shutter 1 s5 = Branch Shutter 2 s6 = Branch Shutter 3 s7 = Laser Diode Modulation rdy = Ready Condition (Read only. Turns on when laser start is possible.) Status (0 = Off, 1 = On): cnt = Control Mode (0: Panel Control, 1: External Control, 2: Communication Line Control, 3: Maintenance Mode) LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 B-31 APPENDIX C SCHEDULE DATA TABLE You may use the LW10/LW15 Laser Schedule Data Table on the following page to record the values set in each weld schedule. LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 C-1 LW10/LW15 LASER SCHEDULE DATA TABLE Item Setting RangeUnit01234567 Voltage 200-410 V (LW10) 200-430 (LW15) Pulse 00.3-10.0 ms Width Rep Rate 0 to 10 PPS Shots 0 to 999 Dummy 0 to 99 High 0 to 99.9 J Energy Low 0 to 99.9 J Energy Number 1, 2 or 3 Of Outputs APPENDIX D LABELS LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 D-1 APPENDIX D: LABELS Identification Label LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 D-2 APPENDIX D: LABELS Warning Label Summary Radiation Hazard Labels LSAFCL2.WPG LSAFCL3B.WPG LSAFCL3A.WPG LSAFLRAD.WPG LSAFRAD.WPG LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 D-3 APPENDIX D: LABELS Electric Shock Hazard Labels LSAFHVEL.WPG LSAFHVSV.WPG Aperture Labels LSAFAVX1.WPG LSAFAVEX.WPG LSAFAVX2.WPG LSAFEXP.WPG Label s for Noni nter locked Prote ctiv e Hous ings LSAFXP1.WPG LSAFSTRE.WPG LSAFEXP2.WPG LSAFEXP3.WPG LSAFEXP4.WPG LSAFEXP5.WPG Labels for Interlocked Protective Housings LSAFCAUT.WPG LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 D-4 Alphabetical Subject Index LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 INDEX-1 ALPHABETICAL SUBJECT INDEX -A- -C- (continued) Accessories, list of (5-22) Laser beam path (2-8) Adjustments: Oscillator head (2-6) Beam Pattern (5-6) Rear panel (2-4) Input focusing, Z-axis (3-3) Condition input setting range list (3-10) X-Y axes (5-11) Connections: Z-axis (5-6) Input focusing unit (3-2) Aiming laser beam ON/OFF (3-16) Optical fiber (3-2) Air filter cleaning (4-1) Power supply (3-1) Alignment of laser beam (5-5) Contents, table of (v) Average monitor screen (3-15) Control panel components (2-5) Cooler maintenance (4-1) -B- -D- Battery replacement (5-17) Beam alignment, laser (5-5) D.I. water supply replenishment (3-1) Bend radius minimums for fiber optical D.I. water draining (4-2)(4-3)(4-5)(4-6) cable (1-2) Dimensions, LW10/LW15 Laser (A-4) Burn Pattern Adjustment (5-6) Draining D.I. water: Long term storage; when -C- transporting; or cold weather operation (4-6) Carrying the laser (1-1) Regular service (4-3)(4-5) Caution information, manual (iv) Under what conditions (4-2) Changing a schedule precautions (2-15) Cleaning: Air filter (4-1) -E- Optics (5-13) Small water filter (4-2) Electrical hazard safety (ii)(1-1)(1-4) Cold weather D.I. water draining (4-6) Energy input maximums for fiber optic Cold weather operational hazards (1-3) cables (1-2) Compliance with Title 21, CFR 1040.10 Energy monitor screen (3-14) certification (ii) External communications interface Components: specification (B-1) Control panel (2-5) Environmental hazards, operating (1-3) Functions (2-9) External input signals, list of (2-10) Inside the maintenance door (2-3) Eyeware, protective (1-4) LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 INDEX-2 ALPHABETICAL SUBJECT INDEX -F- -I- (continued) Feature summary (2-1) Specifications (2-13) Fiber optic cable: Inside the maintenance door components Bend radius minimums (1-2) (2-3) Connections (3-2) Installation hazards (1-1) Handling hazards (1-2) Interlocks, location (1-5) Flash lamp replacement (5-1) Ion exchange resin cartridge replacement Foreword, manual (iii) (4-2)(4-3) Front, top and side view of the laser (2-2) I/O signal interface (2-10) Fuse replacement (5-17) -L- -H- Label: Handling the fiber optic cables (1-2) Identification (D-2) Hazards: Locations (D-1) Cold weather operation (1-3) Warning (D-3) Fiber optic cable handling (1-2) Laser beam protection (iv)(1-4) Maintenance (1-4) Laser beam output control (3-16) Operational (1-3)(3-17) Laser beam path components (2-8) Transporting (1-1)(4-6) Laser controller usage precautions (1-5) High voltage: Laser head service (5-1) ON/OFF (3-15) Laser output control (3-16) Protection (ii)(1-4) Laser safety manual (iv) Laser safety officer responsibilities (1-4) List of accessories and spare parts (5-20) -I- Long term storage D.I. water draining (4-6) LW10/LW15 Laser: Identification label (D-2) Component functions (2-9) Input focusing adjustment: Dimensions (A-4) X-Y axes (3-4) Feature summary (2-1) Z-axis (3-3) Part functions (2-2) Input focusing unit optical fiber connection Preparation for operation (3-1) (3-2) Specifications (A-1) Input focusing unit optics removal (5-14) Transportation, hazards (1-1)(4-6) Input signals: Circuits (2-10) List of (2-10) LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 INDEX-3 ALPHABETICAL SUBJECT INDEX -M- -P- Maintenance: Part functions, LW10/LW15 Laser (2-2) Cooler (4-1) Parts Lists (5-22) User (4-1) Power input maximums for fiber optic cable Maintenance door precautions (3-17) (1-2) Maintenance parts lists (5-22) Power ON/OFF (3-5) Maintenance screen (3-11) Power supply: Maintenance tools and materials, optics Connections (3-1)(3-5) cleaning (5-13) Service (5-17) Malfunctions (5-18) Precautions (1-1) Manual: Precautions: Caution information (iv) Changing a schedule (2-15) Compliance statement (ii) Maintenance door (3-17) Foreword (iii) Optical fiber outlets (3-17) Revision record (i) User maintenance (4-1) Table of contents (v) Preparation for operation (3-1)(3-5) Monitor screen (3-13) Protection from: Electric shock (iv)(1-4) Laser beam (iv)(1-4) -O- Work area hazards (1-4) Protective eyeware (1-4) Operating condition switching (3-16) Publications, safety, recommended (iv) Operating functions (3-5) Operating procedures (3-9) Operation, preparation for (3-1)(3-5) -R- Operational hazards: Environmental (1-3) Rear panel components (2-4) Installation (1-1) Removing the input focusing unit optics Operating (1-4) (5-14) Optical fiber connection (3-2) Repair service availability (5-25) Optical parts service (5-13) Replacement: Optics cleaning (5-13) Backup battery (5-17) Oscillator head components (2-6) D.I. water (3-1)(4-2)(4-5) Oscillator hold down bracket removal (1-3) Flash lamp (5-1) Output control, laser (3-16) Fuses (5-17) Output signals: Ion exchange resin cartridge Circuits (2-17) (4-2)(4-3) List of (2-16) Small water filter (4-2) Specifications (2-18) Revision record, manual (i) LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 INDEX-4 ALPHABETICAL SUBJECT INDEX -S- -T- Safety: Table of contents, manual (v) Electrical hazard (iv)(1-1)(1-4) Technical specifications (A-1) Information, general (1-1) Temperature considerations, cold weather Precautions (1-1) operation (1-3) Publications, recommended (iv) Timing diagram (2-19) Training (1-4) Title 21, CFR 1040.10 compliance (ii) Work area (1-4) Training, safety (1-4) Safety goggles (1-4) Transportation: Schedule changing precautions (2-15) LW10/LW15 Laser (1-1)(4-6) Schedule data table (C-1) Oscillator hold down bracket Schedule screen (3-10) removal (1-3) Screen descriptions: Troubleshooting (5-18) Turning power ON/OFF (3-5) Average Monitor (3-15) Energy Monitor (3-14) Maintenance (3-11) Monitor (3-13) -U- Schedule (3-10) Status (3-12) User maintenance (4-1) Service: Laser head (5-1) -W- Optical parts (5-13) Power supply (5-17) Warning labels (D-3) Signals, I/O: Warranty (5-26) Input (2-10) Work area safety (1-4) Output (2-16) Spare parts, list of (5-23) Specifications: External communications interface -X- (B-1) Fiber optics bend radius (1-2) X-Y axes adjustment (5-11) Fiber optics energy/power input X-Y axes input focusing adjustment (3-4) (1-2) LW10/LW15 Laser (A-1) Status Screen (3-12) -Z- Switching of operating conditions (3-16) System description (2-1) Z-axis adjustment (5-6) System hazards (1-1) Z-axis input focusing adjustment (3-3) LW10/LW15 ULTRA COMPACT Nd: YAG LASER 990-510 INDEX-5 ADDENDUM 995-510, Rev A LW10/LW15 OMS Manual 990-510 5/98 G 3/99 Manual Title Manual Part No. Date Rev Addendum Date REVISION RECORD Revision EO Date Basis of Revision A 17784 3/99 1. Correct input signal diagrams. 2. Clarification of laser output settings. 3. Correct Power Turn On conditions for De-ionized water. Unitek Miyachi Lasers Q P. O. Box 5033 Q Monrovia Q CA 91017-7133 Q (626) 303-5676 Page 1of 4 ADDENDUM 995-510, REV A LW10/LW15 OMS MANUAL Page 2-11, the correct Contact Signals diagram appears below (pin 42 has been added): 6.8K 15 +24 V output 6.8K 16 +12 V - 30 V input 29 Trouble Reset Control changeover 30 (External signals are effective) 31 HV - ON/OFF 34 Laser start 35 Laser stop 36 Emergency stop 37 Schedule 1 38 Schedule 2 39 Schedule 4 42 Main (Resonator) shutter 17 COM (0V) 45 COM (0V) Remote interlock 1 connector Remote interlock 2 YAG laser device side User-provided equipment side Unitek Miyachi Lasers Q P. O. Box 5033 Q Monrovia Q CA 91017-7133 Q (626) 303-5676 Page 2of 4 ADDENDUM 995-510, REV A LW10/LW15 OMS MANUAL Page 2-12, the correct Transistor Signals diagram appears below (pin 42 has been added): 6.8K 15 +24 V output 6.8K 16 +12 V - 30 V input 29 Trouble Reset 30 Control changeover (External signals are effective) 31 HV - ON/OFF 34 Laser start 35 Laser stop 36 Emergency stop 37 Schedule 1 38 Schedule 2 39 Schedule 4 42 Main (Resonator) shutter 17 COM (0V) 45 COM (0V) Remote interlock 1 connector Remote interlock 2 YAG laser device side User-provided equipment side Unitek Miyachi Lasers Q P. O. Box 5033 Q Monrovia Q CA 91017-7133 Q (626) 303-5676 Page 3of 4 ADDENDUM 995-510, REV A LW10/LW15 OMS MANUAL Page 2-13, the following additional information should be inserted immediately prior to the Warning that precedes “Pin No. 35, Laser Stop:” Duration of the laser output is dependent on the settings of REP (Pulse Repetition Rate) and SHOT (Actual Shot Repetitions) as shown below (### represent numbers other than zero): REP SHOT Laser Output Duration 00 000 Single shot at each start signal input 00 ### Single shot at each start signal input ## 000 Laser beam repeatedly fires until laser stop signal is entered ## ### Laser beam repeatedly fires until laser stop signal is entered or shot count expires, whichever occurs first Page 3-7, paragraph titles, Turning Power ON and OFF – correct the left-hand table (Deionized water) to read as follows: Specified resistance Indication of Deionized water Below 2.00 MS/cm LOW Below 3.00 MS/cm CAUTION 3.00 MS/cm and up GOOD Unitek Miyachi Lasers Q P. O. Box 5033 Q Monrovia Q CA 91017-7133 Q (626) 303-5676 Page 4of 4