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G5 Weighing Instrument. Technical Manual

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G5 Weighing Instrument. Technical Manual G5 Weighing Instrument Program version 1.0.X Technical Manual PM and RM types Setpoint function .................................. 12 CONTENTS Digital inputs and outputs ..................... 12 Analog output ....................................... 12 1. Introduction ...................................... 1 Filter function ........................................ 13 General ................................................... 1 Maintenance ........................................... 2 6. Communication ................................ 1 Safety information .................................. 2 General .................................................. 1 Technical data ........................................ 3 Serial interface ....................................... 1 Ordering information .............................. 6 Modbus RTU Slave ................................ 1 Modbus TCP Slave ................................ 2 2. Installation ........................................ 1 Ftp Server .............................................. 3 Mechanical installation ........................... 1 Modbus protocol ..................................... 3 Electrical installation ............................... 3 Fieldbus interface ................................. 18 Connection of cable shields ................... 3 Fieldbus Data Definitions ..................... 19 Profibus-DP Fieldbus Adaptor................ 8 DeviceNet Fieldbus Adaptor ................ 10 7. Remote Access ................................ 1 ControlNet Fieldbus Adaptor ................ 12 General .................................................. 1 Front panel ........................................... 13 Browser requirements ............................ 1 Using the Remote Access ...................... 2 3. Set-up .............................................. 1 Security .................................................. 2 General ................................................... 1 Remote Access Login and Logout ......... 3 How to connect a PC to the instrument . 2 Remote / Local Access .......................... 5 Menu system .......................................... 2 Menu structure ....................................... 4 8. Maintenance ..................................... 1 Parameters ............................................. 6 General .................................................. 1 File Handling .......................................... 1 4. Calibration ........................................ 1 Create Backup ....................................... 1 General ................................................... 1 Restore Backup ...................................... 1 Common parameters ............................. 2 Set Default ............................................. 1 Data sheet calibration ............................ 4 Instrument Restart .................................. 1 Table calibration ..................................... 5 Program upgrade ................................... 2 Deadweight calibration ........................... 5 9. Troubleshooting ................................ 1 5. Operation ......................................... 1 General .................................................. 1 General ................................................... 1 Error codes ............................................. 1 Power-up sequence ............................... 1 Status LEDs ........................................... 1 Display at normal operation ................... 2 Security locks ......................................... 3 Taring ..................................................... 4 Gross/Net operation ............................... 5 Zero setting ............................................ 5 Zero-tracking/Automatic zero setting ..... 6 Motion ..................................................... 6 Weight printing ....................................... 7 Alibi Memory .......................................... 9 Main Menu.............................................. 9 Level supervision ................................. 11 Technical Manual PRECAUTIONS READ this manual BEFORE operating or servicing this instrument. FOLLOW these instructions carefully. SAVE this manual for future reference. WARNING ! Only permit qualified personnel to install and service this instrument. Exercise care when making checks, tests and adjustments that must be made with power on. Failing to observe these precautions can result in bodily harm. DO NOT allow untrained personnel to operate, clean, inspect, maintain, service, or tamper with this instrument. INTENDED USE The G5 Instrument family are measuring and control devices intended for industrial systems. Its basic function is to convert the signals from transducers to useful information. Transducer excitation is included as well as parameter controlled signal processing, indication of output levels, error supervision and operation of optional external equipment. The instrument supports several types of communication interfaces. INSTRUMENT INSULATION AND GROUNDING The cable connector for mains power supply should include protective grounding for safety. The cable for 24VDC power supply (screw terminal connector) should include a ground connected to terminal GND. The input groups of the instrument are insulated from each other by functional insulation. The mains connection of AC-powered instruments has reinforced insulation according to IEC 61010. Terminals intended for connection of cable shields are connected to the protective ground of the mains or GND terminal of 24VDC input but must not be considered as protective grounding. Shield connection of load cell input is not connected to mains protective ground or 24VDC GND terminal. Change description Revision 0: First release of this document. G5 Weighing Instrument 1. Introduction General The G5 Instruments are high performance single-channel weight indicators (PM model, panel mounted) or weight transmitters (RM model, DIN rail mounted) intended for industrial systems. The basic function is to convert the signals from strain gauge transducers to useful weight information. Transducer excitation is included as well as parameter controlled signal processing, indication of output levels, error supervision and operation of optional external equipment. As long as the error supervision detects no error, a signal called ‘In process’ is then present but if an error is detected, ‘In process’ will be off and a specific error message will be displayed. ‘In process’ can be set to control any digital output. Note that there are weighing channel specific and instrument specific error detection. All functions in the G5 Instrument are controlled by set-up parameters. Setting of parameter values can be done from the PM front panel. Set-up of a RM model must be done with a web browser in a PC that is connected to the instrument via Ethernet. Maintenance functions can be accessed locally (PM) or remotely (PM and RM). It is possible to load new software into the instrument using a SD-Card. The instrument has 4 level supervising functions and 4 set-point functions. Power supply The G5-PM (panel mount indicator) is available as 24 VDC model or 110/230 VAC model. The G5-RM (rail mount transmitter) is available as 24 VDC model. All input and output signals are galvanically isolated from the power supply. Strain gauge input Both excitation voltage and the output signal from the transducer are measured at the transducer to avoid influence from voltage drop in the connection cable. Excitation to the transducer, from the G5 Instrument is provided over separate wires. A shielded 6-wire cable must be used to connect a distant transducer to the instrument. The analog signals from the transducer are converted to digital form and filtered to give an internal transducer signal with high resolution. The transducer excitation and signal values are combined to form an internal transducer signal, representing the load on the transducer. Influenced by calibration data, this signal is converted to a digital measurement value, the weight value, which can be presented at the local display window and at external equipment. Communication The instrument utilizes the serial interface, Ethernet and a fieldbus interface for communication with control system or computer. The serial interface consists of a RS- 485/RS-422 connection that can be used with 2- or 4-wire connection. Weight values, level status, error status etc. can be collected and commands given through the communication interfaces. G5 Instruments can be controlled from a master computer or PLC using the serial interface, Ethernet interface, field bus interface or digital I/O. 1-1 Technical Manual Modbus RTU protocol is used for the serial interfaces, Modbus TCP and EtherNet/IP for the Ethernet connection. Optional fieldbus interface for Profibus, DeviceNet or ControlNet can be used. The serial port can also be used to connect a printer for printing of weight or for showing weight on an external display unit. Maintenance The G5 instrument needs no maintenance, performed by the end-user. Any service or repair work must be performed by qualified personnel. Contact your supplier. Cleaning Before cleaning the G5, disconnect the power connection to the instrument. Use a soft cloth to clean the exterior of the instrument. For cleaning the instrument front panel, a soft, damp, cloth may be used. Safety information Utilization. The instrument may only be utilized for the measurement and control functions, described in this Technical
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