Industrial Hydraulics Faqs

Industrial Hydraulics FAQs

FAQ Title: Amplifier change information for proportional valve series changes Bosch Rexroth Corporation Hydraulics Category: Electronics 2315 City Line Road Bethlehem, PA 18017 Sub-Category: Amplifiers. Tel (847) 645-3600

Question: Is documentation available to explain the amplifier changes necessary when replacing 3DREP 6-1X; 4WRZ series 3X thru 6X; 4WRA series 1X with the current series valves, 3DREP-2X; 4WRZ-7X and 4WRA-2X?

Answer: Yes. The current series Euro-card format amplifiers for these valves are: R901002090 VT-VSPA2-1-2X/V0/T1 - 1 ramp time, or R901002095 VT-VSPA2-1-2X/V0/T5 - 5 ramp times

Either version uses our 48-pin cardholder R900020154 VT3002-1-2X/48F

Please review the attachments for further details, diagrams and technical specifications regarding analog amplifier, VT-VSPA2-1-2X/V0/T** -Data sheet, RE30110 -RE30110-b, Set-up instructions, -RE30110-z, Additional Tech Data regarding former series amplifier replacements.

Attachments: RE30110 RE30110-b RE30110-z

Updated: JS_September2013

RE 30110/05.12 1/10 Analog amplifier card replaces: 05.11

Type VT-VSPA2-1-2X/…

H/A/D 6641/00

Table of contents Features

Contents Page – Suitable for controlling valve types 4WRA nominal sizes 6 Features 1 and 10…2X, WRZ…7X and 3DREP…2X Ordering details, accessories 2 – Built-up in the form of a board in the Euro-format 100 x 160 mm and is suitable for mounting into a rack Function 3 – Command value inputs: Block circuit diagram and connection allocation 4 and 5 • Differential input ± 10 V Technical data 6 and 7 • Four command value inputs, ±10 V that can be called up Characteristic curves 7 • Current input 4 to 20 mA Display and adjustment elements 8 and 9 – Inverting the internal command value signal via the 24 V Unit dimension 10 input or jumper Engineering / maintenance guidelines, additional information 10 – Selecting the ramp time via quadrantal recognition (24V input) or ramp time call-ups (24V inputs) (option T5) – Switching over the ramp time range via jumpers – Characteristic curve correction by separately adjustable jump heights and maximum values – Enable input – ”Ramp on/off“ input – Output signal ”operational“ Note: – Switchable measuring socket (option T5) When using amplifier card VT-VSPA2-1-2X as substitute – Polarity protection for the supply voltage for VT 3000-3X, VT 3006-3X, VT 3013-3X, VT 3014-3X, – Power supply with DC/DC convertor without a raised zero VT 3017-3X, VT 3018-3X, VT 3026-3X, VT-VSPA2-1-1X/... or point VT-VSPA2-50-1X/…, observe the notes on configurations and settings given in supplementary information 30110-Z. 2/10 Bosch Rexroth AG Hydraulics VSPA2-1-2X RE 30110/05.12

Ordering details

VT-VSPA2 1 2X V0 *

Analog amplifier in Eurocard format Further details in clear text1) For controlling valve types: T1 = With one ramp time 4WRA 6…2X; 4WRA 10…2X; 4WRZ…7X, 3DREP…2X = 1 T5 = With five ramp times Series 20 to 29 Basic version (20 to 29 unchanged technical data and connectional allocation = 2X

1) E.g. Output stage monitoring or command value reached signal on request

Suitable card holders: – 19“ rack types VT 19101, VT 19102, VT 19103 and VT 19110 (see data sheet 29768) – Enclosed card holder type VT 12302 (see data sheet 30103) with use of a blind plate 4TE/3HE (material no. R900021004) – Open card holder type VT 3002-2X/48F (see data sheet 29928) Only for installation in control cabinet ! RE 30110/05.12 VSPA2-1-2X Hydraulics Bosch Rexroth AG 3/10

Function

Power supply [1] Enable function [8] The amplifier card has a power supply with an inrush current With the enable function the current output stages are re- limiter. This supplies all of the internal positive and negative leased and the internal command value signal is switched to supply voltages. The inrush current limiter prevents inrush the ramp generator. The enable signal is displayed on the current peaks caused by the smoothing capacitors in the front panel by means of a LED. If the enable is withdrawn, current output stage. the internal command value (with an applied command value) changes Applied command value with the set ramp time. The valve being controlled therefore The internal command value signal is formed from the sum does not open suddenly. of the external command value being applied to the differential input [2] and the command values being applied to the Ramp generator [9] summator [6] and the ramp generator. The ramp generator limits the rate of adjustment variable The following is valid: increase. The subsiqent jump functions and amplitude attenuation are not lengthed or shortened by the ramp time. Standard Current Differen- Com. Flow With a ramp ”on/off“ signal or mit with jumper J2 the ramp value input tial input value direction socket time is set to a minimum (< 2 ms) (ramp off). External ramp time adjustment –100% 4 mA –10 V –10 V P to B, A to T With an external potentiometer it is possible to lengthen the internally set ramp time. The setting can be checked with the 0 % 12 mA 0 V 0 V aid of the measuring socket. In the case of a cable break the 100 % 20 mA 10 V 10 V P to A, internal setting is automatically valid. B to T Note on the adjustment and measurement of the ramp time: 0 % < 1 mA1) 0 V Value at measuring socket „t “ Ut in V 5 3 2 1) If the current input is not switched or with current com- current ramp time (±20 %) t in ms 20 33 50 mand value a cable break results in an internal command value signal 0 %. Ut in V 1 0.5 0.3 0.2 0.1 0.05 0.03 0.02 No switching takes place between the current and voltage in- t in ms 100 200 333 500 1000 2000 3333 5000 puts. The inputs are permanently available (see pin alloca- Characteristic curve generator [10] tion). With the adjustable characteristic curve generator it is pos- Command value call-ups [4] sible to separately adjust the maximum values for the posi- Four command value signals „w1“ to „w4“ can be called-up. tive and The external command value voltages (command values 1 negative signals so that they can be matched to suit the to 4) are either directly applied via the controlled voltage out- hydraulic requirements. the actual movement of the puts +10 V and –10 V or via an external potentiometer. If the characteristic curve through the zero point is not in the form command value inuts are directly applied to the controlled of a jump but is linear. volatages then the settings are done on potentiometers „w1“ Amplitude limiter [11] to „w4“. When using external potentiometers then the internal The internal command value is limited to approx. ±110 % of potentiometers act as attenuatators or limiters. the nominal range. Only one call-up at the same time is possible. If more than one call-up is activated at the same time then call-up „1“ has Clock generator [13] the lowerst priority and call-up „4“ the highest priority. The clock generator produces the clock frequency for the The active call-up is displayed via a yellow LED on the front output stages. The clock signal can be switched, via a jump- plate. er, into one of three basic frequency ranges. Command value inversion [7] Current output stage [16] The internally generated command value which is formed The current output stage produces the clocked solenoid cur- from the input signals, command value call-ups and zero rent for the proportional valve. The solenoid current is limited point off-set signal can be inverted by means of an external to 2.7 A per output. The output stage outputs are short cir- signal or via jumper J1. The inversion is displayed via a LED cuit-proof. The output stages are de-energised in the case of („– 1“) on the front plate. an internal fault signal or missing enable. Fault recognision [17] Monitors via current the output stage.

[ ] = Cross reference to the block circuit diagram on pages 4 and 5 b12 Block circuitdiagram/connectionallocation;VT-VSPA2-1-2X/V0/T1 4/10 Ramp on/off b20 w d26 J2 12 Reserved d10 T d30 AG Rexroth Bosch Internal com. value d12 z22 d14 Reserved J7 d16 UP/DOWN Solenoid b 15 z6 +15 V U z8 16 t Controller z2 d24 I z4

u Hydraulics Ramp time d28 max t external u Solenoid a b14 ok1 + 2 Com. value 5 u F b16 u 6 J3 z18 ±10 V b22 t1 + 3 t2 J5 J6 Com. value 6 i t b24 u + z12 4-20 mA 9 t3 t4 13 b8 ok2 z14 Com. value 4 b6 w4 11 z16 Com. value 3 4 Zw 5 Gw+ Gw- b4 w3 10 Com. value 2 b2 w2 S- f z10 Com. value 1 S+ d2 w1 1 d4 2 J4 14 I Com. value d6 3 d32 call-ups d8 7 J8 J9 Actual value 4 -1 d20 J1 ok1 Reserved b10 Enable & d22 Inversion UL d18 Operational Enable 1 17 Enable Fault recognition 8 +15V b32 UL +10 V / 25 mA z30 DC 1 +7,5 V VSPA2-1-2X Operating 24 V +5V M0 ok2 b30 voltage z32 –10 V / 25 mA 0 V 5 V DC 7,5V L0 15 V b18 t 11 Amplitude limiter RE30110/05.12 z24 b26 Measurement signal z26 1 Power supply 6 Com. value summation 12 Com. value output F z28 Ramp time 2 Differential input 7 Com. value inversion 13 Clock generator b28 3 Current input 8 Enable function 14 Act. current output 17 Fault recognition M0 4 Com. value selection logic9 Ramp generator 15 Current controller ok1 enable Output stage z20 5 Zero point adjustment 10 Characteristic curve generator16 Current output stage ok2 monitoring Amplifier System earth RE 30110/05.12 b12 Block circuitdiagram/connectionallocation;VT-VSPA2-1-2X/V0/T5 Ramp on/off b20 J2 d26 4-Quadrant w Reserved operation d10 d30 1 Internal com. value d12 4Q T 12 z22 Ramp 2 + Reserved d14 19 - call-ups 3 J7 d16 UP/DOWN 0 Solenoid b VSPA2-1-2X 4 z6 15 +15 V A B C D E U z8 t1 t2 t3 t4 t5 16 Controller z2 d24 Ramp time I z4 u max t external d28 u ok1 Solenoid a b14 2 Com. value 5 + u F b16 u ± 10 V 6 J3 z18 b22 t1 + 3 t2 Com. value 6 i t J5 J6 u + 7 b24 9 t4 z12 4-20 mA 6 t3 b8 ok2 13 z14 Com. value 4 4 5 b6 w4 11 z16 Com. value 3 3 4 Zw 5 Gw+ Gw- b4 w3 10 Com. value 2 2 b2 w2 S- f z10 Com. value 1 1 S+ d2 w1 1 d4 2 J4 14 I Com. value d6 d32 3 call-ups d8 7 J8 J9 Actual value d20 4 J1 -1 ok1 Reserved b10 Enable & d22 Inversion UL Operational d18 Enable Enable 1 17

Fault recognition Hydraulics 8 +15V b32 +10 V / 25 mA UL z30 DC 1 +7,5 V 24 V +5V Operating M0 ok2 b30 z32 Measuring points –10 V / 25 mA voltage 0 V 5 V DC 0123456789ABDEF C AG Rexroth Bosch L0 7,5V 15 V b18 v CDE B F b26

z24 A Measurement

0 8

z26 7

2 6

3 5 z28 4 18 signal b28 1 Power supply 7 Com. value inversion 13 Clock generator M0 2 Differential input 8 Enable function 14 Actual current output z20 System earth 3 Current input 9 Ramp generator 15 Current controller 4 Com. value selection logic10 Characteristic curve generator16 Current output stage 19 Ramp time selection logic

5 Zero point adjustment 11 Amplitude limiter 17 Fault recognition ok1 enable Output stage 5/10 6 Com. value summation 12 Com. value output 18 Measuring point switchover ok2 monitoring Amplifier 6/10 Bosch Rexroth AG Hydraulics VSPA2-1-2X RE 30110/05.12

Technical data (for applications outside these parameters, please consult us!)

Operating voltage UB 24 VDC + 40% – 20% Functional range:

– Upper limiting value UB (t)max 35 V

– Lower limiting value UB (t)min 18 V

Power consumption PS < 50 VA Current consumption I < 2A

Fuse IS 2 A medium slow, replacable Inputs: – Analog

• Com. value 1 to 4 (potentiometer inputs) Ue 0 to ±10 V; Re > 100 kΩ (ref. is M0)

• Com. value 5 (differential input) Ue 0 to ±10 V; Re > 50 kΩ

• Com. value 6 (current input) Ie 4 to 20 mA; load RB = 100 Ω

• External ramp time Ue 0 to + 10 V; Re = 10 kΩ (raised internally to +15 V; ref. is M0) – Digital

• Command value call-ups U 8.5 V to UB –> call-up actuated; Re > 100 kΩ

U 0 to 6.5 V –> no call-up; Re > 100 kΩ

• Ramp call-up (option T5) U 8.5 V to UB –> call-up actuated; Re > 100 kΩ

U 0 to 6.5 V –> no call-up; Re > 100 kΩ

• Quadrant recognision U 8.5 V to UB –> ON; Re > 100 kΩ

U 0 to 6.5 V –> OFF; Re > 100 kΩ

• Command value inversion U 8.5 V to UB –> ON; Re > 100 kΩ

U 0 to 6.5 V –> OFF; Re > 100 kΩ

• Enable U 8.5 V to UB –> ON; Re > 100 kΩ

U 0 to 6.5 V –> OFF; Re > 100 kΩ

• Ramp U 8.5 V to UB –> ON; Re > 100 kΩ

U 0 to 6.5 V –> OFF; Re > 100 kΩ Setting ranges – Zero compensation (potentiometer „Zw“) ±30% – Command value (potentiometers „w1“ to „w4“) 0% to 110% – Ramp times (potentiometers „t1“ to „t5“) 20 ms to 5 s; switchable 0.2 to 50 s – Jump height (potentiometers „S+“ and „S–“) 0% to 50% – Amplitude attenuation (potentiometers „G+“ and „G–“) 0% to 110% (valid when setting the jump height from 0%) Outputs

– Command value signal U ±10 V ± 2 %; Imax = 2 mA

– Actual value signal U ±2.5 V ± 2 %; Imax = 2 mA (mV mA)

– Measuring point signal (option 5) U ±10 V ± 2 %; Imax = 2 mA

– Operational U > 16 V; 50 mA (with a fault: U < 1 V; Ri = 10 kΩ) – Controlled voltages U ±10 V ± 2 %; 25 mA; short circuit-proof – Current output stage I 0 to 2.5 A; short circuit-proof

– Measurement sockets Command value signal ±10 V ± 2 %; Imax = 2 mA Actual value signal ±2.5 V ± 2 %; Imax = 2 mA (mV mA) RE 30110/05.12 VSPA2-1-2X Hydraulics Bosch Rexroth AG 7/10

Technical data (continued)

Clock frequency

– WRA6 f 300 to 370 Hz (at 24 V UB and 0 V Ucom. = 370 Hz)

– WRA10 f 180 to 410 Hz (at 24 V UB and 0 V Ucom. = 410 Hz) – WRZ f 170 Hz – 3DREP f 170 Hz Connection type 48-pin blade connector, DIN 41612, form F Card dimensions Eurocard 100 x 160 mm, DIN 41494 Front plate dimensions – Height 3 HE (128.4 mm) – Width soldered side 1 TE (5.08 mm) – Width component side 3 TE Permissible operating temperature range ϑ 0 to 50 °C Storage temperature range ϑ –25 °C to +85 °C Weight m 0.17 kg (net)

Note! For details regarding the environmental simulation test covering EMC (electro-magnetic compatibility), climate and mechanical loading see data sheet 30110-U.

Characteristic curves

2500

2250

4WRZ…7X, 3DREP…2X 2000 4WRA…2X 1750

1500

1250

1000 Current in mA →

750

500

350 250

100 2 10080604020220406080

Command value in % → 8/10 Bosch Rexroth AG Hydraulics VSPA2-1-2X RE 30110/05.12

Display / adjustment element T1

J3 ramp time J8, J9 jump height J8 J9 J4 Jump function J1 inversion 0.2 to 50 sec. 4WRA6 and 10…2X Off Inverted 0.02 to 5 sec. • 4WRZ…7X, 3DREP…2X • On • Not inverted •

REXROTH

-1 T Gw+ S+ Gw- S- J4 J10

Zw J9 J8 w1 w2 J1 w3 J3 w4 f J5 J6 J2 J7

I w t

VSPA2

LED displays: J5, J6 clock frequency J5 J6 J2 ramp function J7 max. current setting Operational (green) 4WRZ…7X, 4WRA6…2X Off Enable (yellow) 3DREP…2X • On • –1 External inversion 4WRA…2X 4WRA10…2X Measurement sockets: •=Factory jumper setting I, w, t Measurement signal Universal, = Jumper closed 4WRZ…7X ⊥ Measurement zero 3DREP…2X = Jumper open

Potentiometer (partially with LED display): Zw Zero point alignment adjustable on the board: w1 Command value 1 Gw+ Amplitude attenuation for positive command values w2 Command value 2 Gw– Amplitude attenuation for negative command values w3 Command value 3 S+ Jump heights for a positive direction w4 Command value 4 S– Jump heights for a negative direction t Ramp time f Clock frequency output stage Adjusting the locked potentiometers invalidates any guarantee claims! RE 30110/05.12 VSPA2-1-2X Hydraulics Bosch Rexroth AG 9/10

Display / adjustment element T5

J3 ramp time J8, J9 jump height J8 J9 J4 jump function J1 inversion 0.2 to 50 sec. 4WRA6 and 10…2X Off Inverted 0.02 to 5 sec. • 4WRZ…7X, 3DREP…2X • On • Not inverted •

-1 4Q T Gw+ S+ Gw- S- J4 J10

Zw J9 J8 w1 w2 J1 w3 J3 w4 f t1 J5 t2 J6 J2 t3 J7 t4 t5

F01 2 E 3

D 4

7 A 8 9 I w v

VSPA2

LED displays: J5, J6 clock frequency J5 J6 J2 ramp function J7 max. current setting Operational (green) 4WRA6 2X Off 4WRZ…7X • Enable (yellow) On • 4WRA…2X –1 External inversion 3DREP…2X 4WRA10 2X Measurement sockets: •=Factory jumper setting I, w, t Measurement signal Universal, = Jumper closed 4WRZ…7X ⊥ Measurement zero 3DREP…2X = Jumper open (For further information see document 30110-B)

Potentiometer (partially with LED display): Zw Zero point alignment adjustable on the board: w1 Command value 1 Gw+ Amplitude attenuation for positive command values w2 Command value 2 Gw– Amplitude attenuation for negative command values w3 Command value 3 S+ Jump heights for a positive direction w4 Command value 4 S– Jump heights for a negative direction t1 Ramp time 1 f Clock frequency output stage t2 Ramp time 2 t3 Ramp time 3 t4 Ramp time 4 t5 Ramp time 5 Adjusting the locked potentiometers invalidates any guarantee claims! 10/10 Bosch Rexroth AG Hydraulics VSPA2-1-2X RE 30110/05.12

Unit dimensions (dimensions in mm)

T1 T5

REXROTH REXROTH -1 T -1 4Q T

Zw Zw w1 w1 w2 w2 w3 w3 w4 w4 t1 89

t2 100 t3

3HE (128,4) t4 t t5

F01 2 E 3

D 4

7 A 8 9 I w I w t v

VSPA2 VSPA2 Ø 8

4TE (20) 2 7 165 182

Engineering / maintenance guidelines / additional information

For further information see document 30110-B.

Bosch Rexroth AG © This document, as well as the data, specifications and other informa- Hydraulics tion set forth in it, are the exclusive property of Bosch Rexroth AG. It Zum Eisengießer 1 may not be reproduced or given to third parties without its consent. 97816 Lohr am Main, Germany The data specified above only serve to describe the product. No state- Telefon +49 (0) 93 52 / 18-0 ments concerning a certain condition or suitability for a certain applica- [email protected] tion can be derived from our information. The information given does www.boschrexroth.de notrelease the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging. RE 30110/05.12 VSPA2-1-2X Hydraulics Bosch Rexroth AG 11/10

Notes

Bosch Rexroth AG © This document, as well as the data, specifications and other informa- Hydraulics tion set forth in it, are the exclusive property of Bosch Rexroth AG. It Zum Eisengießer 1 may not be reproduced or given to third parties without its consent. 97816 Lohr am Main, Germany The data specified above only serve to describe the product. No state- Telefon +49 (0) 93 52 / 18-0 ments concerning a certain condition or suitability for a certain applica- [email protected] tion can be derived from our information. The information given does www.boschrexroth.de notrelease the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging. 12/10 Bosch Rexroth AG Hydraulics VSPA2-1-2X RE 30110/05.12

Notes

Analog amplifier card component series 2X

Operating instructions Replaces: 10.10 RE 30110-B/11.12 English

The data specified above serve to describe the product. If there is also information on the use, it is only to be regarded as application examples and proposals. Catalogue information does not constitute warranted properties. The information given does not release the user from the obligation of own judgment and verification. Our products are subject to a natural process of wear and aging.

© This document, as well as the data, specifications and other information set forth in it, are the exclusive property of Bosch Rexroth AG. It may not be reproduced or given to third parties without its consent.

The cover page shows an example configuration. The product supplied may therefore differ from the photo shown.

The original operating instructions were pre- pared in German. Contents 3/40

Contents

1 About this documentation 5 1.1 Validity of the documentation 5 1.2 Required and amending documentation 5 1.3 Representation of information 5 1.3.1 Safety instructions 5 1.3.2 Symbols 6 1.3.3 Designations 6 1.3.4 Abbreviations 7 2 Safety instructions 7 2.1 General information on this chapter 7 2.2 Intended use 7 2.3 Improper use 7 2.4 Qualification of personnel 8 2.5 General safety instructions 8 2.6 Product-specific safety instructions 9 3 General information on damage to property and damage to the product 11 4 Scope of delivery 12 4.1 Recommended accessories 12 5 Information on this product 13 5.1 Performance description 13 5.2 Product description 13 5.2.1 Block diagrams/pin assignments of the amplifier card 14 5.2.2 Setting and display elements of the amplifier card VT-VSPA../T1 16 5.2.3 Setting and display elements of the amplifier card VT-VSPA../T5 17 5.2.4 Description of the functions and components of the analog amplifier card 18 5.2.5 Ramp on/off 20 5.2.6 Ramp time selection logic [19] (only for VT-VSPA2.../T5) 21 5.2.7 Characteristic curve generator [10] 21 5.2.8 Amplitude limiter [11] 22 5.2.9 Power output stage [16] 22 5.2.10 Clock generator [13] 22 5.2.11 Measuring sockets 22 6 Transport and storage 23 6.1 Storing the VT-VSPA2-1-2X 23 7 Installation 24 7.1 Work steps 24 7.2 Safety regulations 25 7.3 Installation conditions 25 7.4 Unpacking the amplifier card 26 7.5 Installing the amplifier card 26 8 Commissioning 28 8.1 Safety regulations 28 8.2 Setting the amplifier card 28

RE 30110-B/11.2012, VT-VSPA2-1-2X/V0/T., Bosch Rexroth AG 4/40

8.2.1 Setting the command value zero point 28 8.2.2 Setting the command value 29 8.2.3 Setting the ramp time 29 8.2.4 Externally setting the ramp time 30 8.2.5 Setting the step level 30 8.2.6 Setting the maximum values 31 9 Maintenance and repair 32 9.1 Cleaning and care (maintenance) 32 9.2 Maintenance 32 9.3 Repair 32 10 Disassembly and exchange 33 10.1 Preparing for disassembly 33 10.2 Disassembling the product 33 10.3 Preparing the components for storage/further use 33 11 Disposal 34 11.1 Environmental protection 34 11.2 Return to Bosch Rexroth AG 34 11.3 Packaging 34 11.4 Materials used 34 11.5 Recycling 34 12 Extension and modification 35 13 Troubleshooting 35 13.1 How to proceed for troubleshooting 35 14 Technical data 36 15 Appendix 37 15.1 List of addresses 37 15.1.1 Contacts for repairs and support 37 16 Alphabetical index 38

Bosch Rexroth AG, VT-VSPA2-1-2X/V0/T., RE 30110-B/11.2012 About this documentation 5/40

1 About this documentation

1.1 Validity of the documentation This documentation applies to the following products: ••VT-VSPA2-1-2X/V0T1 mat. no.: 901002090 ••VT-VSPA2-1-2X/V0T5 mat. no: 901002095

This documentation is intended for assembly fitters, operators, service engineers and system end users. This documentation contains important information on the safe and proper assembly, transport, commissioning, operation, use, maintenance, disassembly and simple troubleshooting of the product ▶▶ You should read this documentation thoroughly, and in particular chapter 2 "Safety instructions" on page 7 and chapter 3 "General information on damage to property and damage to the product" on page 11, before working with the product.

1.2 Required and amending documentation ▶▶ The product must not be commissioned until you have been provided with the documentation marked with the book symbol and you have understood and observed it. ▶▶ Observe the configuration and setting instructions according to the 30110-Z additional information when using the VT-VSPA2-1-2X amplifier card as replacement for VT 3000-3X, VT 3006-3X, VT 3013-3X, VT 3014-3X, VT 3017-3X, VT 3018-3X, VT 3026-3X, VT-VSPA2-1-1X/... or VT-VSPA2-50-1X/...

Table 1: Required and amending documentation Title Document number Document type Analog amplifier card 30110 Data sheet

Analog amplifier card 30110-U Environmental statement

Analog amplifier card 30110-Z Additional information

1.3 Representation of information Consistent safety instructions, symbols, terms and abbreviations are used in this documentation so that you can quickly and safely work with your product. For a bet- ter understanding, they are explained in the following sections.

1.3.1 Safety instructions In this documentation, safety instructions are indicated in chapter 2.6 "Product- specific safety instructions" on page 9 and in chapter 3 "General information on damage to property and damage to the product" on page 11 and whenever se- quences of actions or instructions are explained which bear the danger of personal injury or damage to property. The measures described for preventing these hazards must be observed.

Safety instructions are set out as follows:

RE 30110-B/11.2012, VT-VSPA2-1-2X/V0/T., Bosch Rexroth AG 6/40 About this documentation

Signal word Type and source of danger! Consequences in case of non-compliance ▶▶ Measures for the hazard avoidance ▶▶

••Warning sign: Draws attention to the danger ••Signal word: Identifies the degree of danger ••Type and source of danger: Specifies the type and source of danger ••Consequences: Describes the consequences in case of non-compliance ••Precaution: Specifies how the danger can be prevented

Table 2: Risk classes according to ANSI Z535.6-2006

Warning sign, signal word Meaning Indicates a dangerous situation which will cause death or DANGER severe personal injuries if not avoided. Indicates a dangerous situation which may cause death or WARNING severe personal injuries if not avoided. Indicates a dangerous situation which may cause minor or CAUTION medium personal injuries if not avoided. Damage to property: The product or the environment could NOTICE be damaged.

1.3.2 Symbols The following symbols indicate notes which are not safety-relevant but increase the comprehensibility of the documentation.

Table 3: Meaning of the symbols

Symbol Meaning If this information is not observed, the product cannot be used and/or operated optimally.

▶▶ Individual, independent action 1. Numbered instruction: 2. The numbers indicate that the steps must be carried out one after the other. 3.

1.3.3 Designations The following designations are used in this documentation:

Table 4: Designations

Designation Meaning

UB Operating voltage VT-VSPA2 Analog amplifier card

Bosch Rexroth AG, VT-VSPA2-1-2X/V0/T., RE 30110-B/11.2012 Safety instructions 7/40

1.3.4 Abbreviations The following designations are used in this documentation:

Table 5: Abbreviations

Designation Meaning EMC Electromagnetic compatibility PELV = Protective Extra Low Voltage

2 Safety instructions

2.1 General information on this chapter The product has been manufactured according to the generally accepted code of practice. However, there is still the risk of personal injury and damage to property if you do not observe this chapter and the safety instructions in this documentation. ▶▶ Read this documentation completely and thoroughly before working with the product. ▶▶ Keep this documentation in a location where it is accessible to all users at all times. ▶▶ Always include the required documentation when you pass the product on to third parties.

2.2 Intended use The product is an electric component. The VT-VSPA2-1-2X/V0/T* analog amplifier card is used for generating, linking or standardizing command value signals and subsequent amplification of the generated signals. You may use the product as follows: ••For controlling the valves specified in the data sheet 30110.

The product is only intended for professional use and not for private use. Intended use includes having read and understood this documentation, especially chapter 2 "Safety instructions" on page 7.

2.3 Improper use Any use deviating from the intended use is improper and thus not admissible. Bosch Rexroth AG does not assume any liability for damage caused by improper use. The user assumes all risks involved with improper use. The following cases of foreseeable misuse are also regarded as being improper: ••Using the analog amplifier card outside the specified performance limits and operating conditions and in particular the specified environmental conditions.

RE 30110-B/11.2012, VT-VSPA2-1-2X/V0/T., Bosch Rexroth AG 8/40 Safety instructions

••Using the analog amplifier card in explosion-protected areas or in safety-related parts of control systems (functional safety).

2.4 Qualification of personnel The activities described in this documentation require basic knowledge of electrics and hydraulics as well as knowledge of the appropriate technical terms. For trans- porting and handling the product, additional knowledge of dealing with lifting tools and the related attachment devices is required. In order to ensure safe use, these activities may only be carried out by a corresponding expert or an instructed person under the direction and supervision of an expert. Experts are those who can recognize potential hazards and apply the appropriate safety measures due to their professional training, knowledge and experience, as well as their understanding of the relevant conditions pertaining to the work to be undertaken. An expert must observe the relevant specific professional rules and have the necessary hydraulic expert knowledge. Hydraulic expert knowledge means, amongst others: ••reading and completely understanding hydraulic schemes, ••in particular completely understanding the correlations regarding the safety equip- ment and ••having knowledge of the function and set-up of hydraulic components.

Bosch Rexroth offers measures supporting the training in specific fields. An overview of the training contents is available on the Internet via the following link: http://www.boschrexroth.de/didactic.

2.5 General safety instructions ••Observe the valid regulations on accident prevention and for environmental protection. ••Observe the safety regulations and provisions of the country where the product is implemented/used. ••Exclusively use Rexroth products in technically perfect condition. ••Observe all notices on the product. ••Persons assembling, operating, disassembling or maintaining Rexroth products must not be under the influence of alcohol, other drugs or medications influencing the ability to react. ••Only use original Rexroth accessories and spare parts in order to exclude hazards to persons due to unsuitable spare parts. ••Comply with the technical data and environmental conditions specified in the product documentation. ••The installation or use of inappropriate products in safety-relevant applications could result in unintended operating conditions when being used which in turn could cause personal injuries and/or damage to property. Therefore please only use a product for safety-relevant applications if this use is expressly specified and per- mitted in the documentation of the product, e.g. in explosion-protected areas or in

Bosch Rexroth AG, VT-VSPA2-1-2X/V0/T., RE 30110-B/11.2012 Safety instructions 9/40

safety-related parts of control systems (functional safety). The VT-VSPA2-1-2X/V0/T* analog amplifier card itself does not contain any safety functions for personal safety and is not a safety-relevant component. The amplifier card is solely used for the generation of the solenoid currents for on/off valves. ••Do not commission the product until you can be sure that the end product (for example a machine/system) where the Rexroth products are installed comply with the country-specific provisions, safety regulations and standards of the application.

2.6 Product-specific safety instructions WARNING Dangerous movement! Risk of injury due to incorrect control of the valve via the amplifier card and unfore- seeable machine movements caused in this way. ▶▶ The amplifiers may only be operated with the valve/coil combinations released in the type key. ▶▶ If persons must access the danger zone during active control, monitoring or measures must be provided for personal safety which are superior to the system. These measures must be provided according to the specific data of the system and on the basis of the risk and error analysis of the system manufac- turer/user. In this connection, the safety provisions applied for the system must be taken into account. The electronics always causes interference on other electronics lying within the limit values. Thus, malfunctions in the control are possible. ▶▶ Only use electronics under the EMC limit values or provide for corresponding screening. The electronics of the VT-VSPA2-1-2X/V0/T* analog amplifier card reacts to electromagnetic interference of unshielded, incorrectly laid or incorrectly connected signal lines. If the limit values specified in the data sheet are exceeded, malfunctions or uncontrolled movements are possible. ▶▶ Comply with the limit values specified in the data sheet; use only electronics under the EMC limit values or provide for corresponding screening. Electrostatic processes, an incorrect earthing concept or missing equipotential bonding may lead to damage to the electronics and thus cause malfunctions or uncontrolled movements at the machine. ▶▶ Provide for correct earthing and for equipotential bonding. If the product is used outside the specified IP protection class, short-circuits and malfunctions and thus uncontrolled machine movements may result. ▶▶ You may therefore only use the product within the IP protection class and environment specified in the data sheet.

High pressure! Risk of injury! ▶▶ Depressurize the relevant part of the system before performing any work on the control electronics.

RE 30110-B/11.2012, VT-VSPA2-1-2X/V0/T., Bosch Rexroth AG 10/40 Safety instructions

WARNING High electrical voltage by incorrect connection! Danger to life, risk of injury caused by electric shock. ▶▶ All connections and terminals with voltages between 0 and 50 Volt may only be connected with devices, electric components and lines with a protective extra- low voltage (PELV). ▶▶ Only connect voltages and electric circuits provided with a safe isolation from dangerous voltages. Safe isolation can be achieved for example with isolation transformers, safe optocouplers or mains-free battery operation.

High voltage! Risk of injury. ▶▶ Only wire and plug the analog amplifier card in de-energized state.

Stroke of lightning! Risk of uncontrolled machine movements. ▶▶ An incorrect earthing concept or lack of equipotential bonding may lead to damage to the electronics. Provide for equipotential bonding for the device.

Failures and errors in the control circuits or the energy supply! Risk of uncontrolled machine movements. ▶▶ Comply with safety instructions according to EN ISO 13849 or IEC 62061. CAUTION Hot surfaces! Risk of burning. ▶▶ System parts may become hot during operation. Allow the system parts to cool down before touching them or wear protective gloves.

Fault currents and short-circuits! Impairment of safety and malfunctions. ▶▶ The environment must be free from electrically conductive contamination (acids, bases, corrosive agents, salts, metal vapors, etc.) and the device must not be exposed to these substances. Rule out any deposits according to protection class IP.

Bosch Rexroth AG, VT-VSPA2-1-2X/V0/T., RE 30110-B/11.2012 General information on damage to property and damage to the product 11/40

3 General information on damage to property and damage to the product

NOTICE High voltage! Possible damage to the analog amplifier card. ▶▶ Only wire the amplifier card in de-energized state.

High temperatures! Possible damage to the amplifier card. ▶▶ Comply with the environmental conditions according to the data sheet. ▶▶ Do not use free-wheeling diodes in the solenoid conductors. ▶▶ Provide for sufficient air circulation.

Voltage loss or melting of the cable. ▶▶ For solenoid lines up to 50 m in length, use the cable type LIYCY 1.5 mm². Greater line lengths on request.

Overload! Risk of overload and damage to the supply line in case of insufficient design and/or operation with several electric devices. ▶▶ Provide for current limitation by means of overload protection. ▶▶ Dimension power supply unit and cable sufficiently.

Short-circuit! Risk of overload and damage to the supply line in case of defects at the electric device. ▶▶ Provide for current limitation by means of overload protection.

Inadmissible temperature range! Danger due to overheating. Device might be thermally destroyed. ▶▶ Comply with the specifications in the data sheet.

Electrostatic discharge! Possible damage to the components of the analog amplifier card. ▶▶ Provide for equipotential bonding to discharge electrostatic charges from your body. ▶▶ Work in a safe environment ▶▶ Do not use devices causing or having static discharges into the work environment. ▶▶ Do not work on the amplifier card in environments which might cause an electrostatic charge. ▶▶ Handle the amplifier card with care. Do not touch exposed connection pins and sensitive electronic components. ▶▶ Transport and store the amplifier card carefully in the original packaging intended for this purpose.

RE 30110-B/11.2012, VT-VSPA2-1-2X/V0/T., Bosch Rexroth AG 12/40 Scope of delivery

NOTICE Wrong cables! Voltage loss, melting of the cable! Risk of product damage. ▶▶ For solenoid lines up to 50 m in length, use the cable type LiYCY 1.5 mm2. With greater lengths, please contact us.

Cables lying around! Risk of stumbling and possible damage. ▶▶ Lay the cables and lines so that they cannot be damaged and no one can trip over them.

The warranty only applies to the delivered configuration. The claim to warranty expires if the product is incorrectly assembled, commissioned and operated, not used as intended and/or handled improperly.

4 Scope of delivery

The scope of delivery includes: ••Analog amplifier card

Accessories such as cable and power supply unit and cable sets are not included in the scope of delivery and must be ordered separately. See below.

4.1 Recommended accessories Denomination Material number Closed card holder VT 12302 with use of a blind plate R900021004 Open card holder VT 3002-2X/48F R900020154

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5 Information on this product

5.1 Performance description The VT-VSPA2-1-2X/V0/T* analog amplifier card is used for generating, linking or standardizing command value signals and subsequent amplification of the generated signals.

5.2 Product description The amplifier card can be used for the following proportional directional valves (hydraulic valves). ••4WRA6-2X ••4WRA10-2X ••4WRZ...-7X ••3DREP…2X

By means of digital command value call-ups and ramp time call-ups (option T5) the amplifier card can, for example, also be controlled via a PLC. Options The standard version (VT-VSPA2-1-2X/V0/...) is generally available with the following options: ••VT-VSPA2.../T1: Amplifier card with one adjustable ramp time. ••VT-VSPA2.../T5: Amplifier card with five adjustable ramp times. If this option is chosen, the ramp time can also be selected via ramp time call-ups (24 V inputs) or in 4-quadrant operation. In addition, a switchable measuring socket is integrated.

Features of the For the technical data of the analog amplifier card, please refer to the associated amplifier card data sheet 30110. ••Set up as printed circuit board in Euro-card format, 100 x 160 mm, and suitable for installation in a rack. ••Command value inputs: ––Differential input ±10 V ––Four callable command value inputs ±10 V ––Current input 4 to 20 mA ••Inverting of the internal command value signal via 24 V input or jumper ••Selection of ramp time via quadrant recognition (24 V input) or ramp time call-ups (24 V inputs) (option T5) ••Selection of the ramp time range via jumper ••Characteristic curve correction by means of separately adjustable step levels and maximum values ••Enable input ••"Ramp on/off" input ••"Ready for operation" output signal ••Switchable measuring socket (option T5) ••Reverse polarity protection for the voltage supply ••Power supply with DC/DC converter without raised zero point

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5.2.1 Block diagrams/pin assignments of the amplifier card

Solenoid a Solenoid b Reserved Reserved value current Actual Reserved for Ready operation +10 V/25 mA –10 V/25 mA - Measure ment signal ramp time M0 earth System Internal command value Internal z6 z8 z2 z4 z22 z10 z18 z12 z14 z16 z20 d26 d32 d20 d22 b32 b30 b26 b28 d30 t I I J7 UL J6 U 16 w ok1 f J5 13 17 ok2 ok1 & 14 12 F 15 Error detection Error 11 Enable Output stage enable signal Output stage monitoring Card Current controller Current output stage Power recognition Fault 10 t 15 16 17 ok1 ok2 t4 J9 t3 t2 S - J8 9 J3 Gw- t1 max t J4 S + 1 F 5 V 7,5V 15 V +15V +7,5 V +5V M0 ok2 Gw+ T + -1 t J1 DC 7 Enable function generator Ramp curveCharacteristic generator limiter Amplitude output Command value generator Clock - val current Actual ue output 1 5 8 9 10 11 12 13 14 6 Zw DC 4 UL Enable w1 2 3 J2 u u w2 i u u L0 8 w3 Power supply unit supply Power input Differential input Current selec - Command value tion logic point setting Zero inversion Command value Command value summation Command value u 1 2 3 4 5 6 7 w4 +15 V b12 b20 d10 d12 d14 d16 d24 d28 b14 b16 b22 b24 b8 b6 b4 b2 d2 d4 d6 d8 b10 d18 z30 z32 b18 z24 z26 z28 1 2 3 4 + + 0 V 24 V Ramp on/off Ramp ramp External time 5 Command value ± 10 V Command value 6 4-20 mA 4 Command value 3 Command value 2 Command value 1 Command value Command call-ups value Inversion enable Operating voltage

Fig. 1: Block diagrams/pin assignments of the amplifier card VT-VSPA../T1

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Solenoid a Solenoid b Reserved Reserved value current Actual Reserved operation for Ready +10 V/25 mA –10 V/25 mA signal Measurement M0 earth System Internal command value Internal z6 z8 z2 z4 z22 z18 z12 z14 z16 z10 z20 d30 d26 d32 d20 d22 b32 b30 b26 b28 v I I J7 UL Output stage enable signal Output stage monitoring Card U J6 16 w f J5 ok1 13 Ramp time selection logic Ramp 17 ok2 ok1 & 14 15 12 19 ok1 ok2 EF 18 Controller BD

AC F 01 E 2

D 4 89

7 8 A 67 9 45 23 0 01 11 Enable Error detection Error 7 10 t t4 Current controller Current output stage Power recognition Fault Measuring point switch-over Clock generator Clock Actual current value output value current Actual - J9 + J3 14 15 16 17 18 13 t3 t2 J8 S- 9 T Gw- t1 max t J4 1 S+ F 4Q 5 V 7,5V 15 V +15V +7,5 V +5V M0 ok2 Gw+ E + -1 t5 J1 DC 7 6 D 1 5 5 t4 6 Zw Command value inversion Command value Enable function generator Ramp curveCharacteristic generator limiter Amplitude output Command value DC C 7 8 9 10 11 12 19 t3 4 B UL Enable 1 t2 A 2 w1 J2 2 3 3 t1 u u w2 i u 4 u L0 8 w3 u w4 +15 V Power supply unit supply Power input Differential input Current selec - Command value tion logic point setting Zero summation Command value b18 z24 z26 z28 d2 d14 d24 b22 d16 d28 d4 d6 d8 b16 b24 b20 d10 d12 d18 b8 b6 b2 b10 b14 b4 z32 b12 z30 1 2 3 4 5 6 1 2 3 4 1 2 3 4 + + 0 V 24 V Ramp on/off Ramp 4-quadrant operation call-ups Ramp ramp External time 5 Command value ± 10 V 6 value Command 4-20 mA 4 Command value 3 Command value 2 Command value 1 Command value Command call-ups value Inversion enable Operating voltage

Fig. 2: Block diagrams/pin assignments of the amplifier card VT-VSPA../T5

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5.2.2 Setting and display elements of the amplifier card VT-VSPA../T1

REXROTH

-1 T Gw+ S+ Gw- S- J4 J10

Zw J9 J8 w1 w2 J1 w3 J3 w4 f J5 J6 J2 J7

I w t

VSPA2

J3 ramp time J8, J9 step level J8 J9 J4 step function J1 inverting 0.2 to 50 sec. 4WRA6 and 10...2X Off Off

0.02 to 5 sec. • 4WRZ...7X, 3DREP...2X On • On •

LED displays J5, J6 clock frequency J5 J6 J2 ramp function J7 maximum current setting Ready for operation (green) 4WRA6...2X Off 4WRZ...7X • 3DREP...2X Enable (yellow) On • 4WRA...2X –1 External inverting 4WRA10...2X

• = factory setting of the jumpers Measuring sockets Universal, 4WRZ...7X = jumper closed I, w, t Ready for operation (green) 3DREP...2X = jumper open ⊥ Enable (yellow) –1 External inverting

Potentiometer (some of which with LED display) Potentiometer adjustable on the board zw Zero point calibration Gw+ Amplitude attenuator for positive command values w1 Command value 1 Gw– Amplitude attenuator for negative command values w2 Command value 2 S+ Step level for positive direction w3 Command value 3 S– Step level for negative direction w4 Command value 4 f Clock frequency output stage t Ramp time

The warranty expires if the sealed potentiometer is adjusted.

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5.2.3 Setting and display elements of the amplifier card VT-VSPA../T5

-1 4Q T Gw+ S+ Gw- S- J4 J10

Zw J9 J8 w1 w2 J1 w3 J3 w4 f t1 J5 t2 J6 J2 t3 J7 t4 t5

F01 2 E 3

D 4

7 A 8 9 I w v

VSPA2

J3 ramp time J8, J9 step level J8 J9 J4 step function J1 inverting 0.2 to 50 sec. 4WRA6 and 10...2X Off Off

0.02 to 5 sec. • 4WRZ...7X, 3DREP...2X On • On •

• = factory setting of the jumpers Measuring sockets Universal, 4WRZ...7X = jumper closed I, w, t Ready for operation (green) 3DREP...2X = jumper open ⊥ Enable (yellow) –1 External inverting

The warranty expires if the sealed potentiometer is adjusted.

RE 30110-B/11.2012, VT-VSPA2-1-2X/V0/T., Bosch Rexroth AG 18/40 Information on this product

5.2.4 Description of the functions and components of the analog amplifier card The assemblies described in this documentation are shown in the block diagrams (data sheet 30110). The numbers in brackets used in the following description are cross- references to the block diagrams in Fig. 1 and Fig. 2 on page 14 and page 15.

5.2.4.1 Power supply unit [1]

The amplifier card is equipped with a power supply unit with a making current limiter. It supplies all positive and negative supply voltages required internally. The making current limiter prevents high start-up peaks caused by the smoothing capacitors in the power output stage.

5.2.4.2 Command value specification

Internal command The internal command value signal is calculated from the total (summation [6]) of value signal the following signals: ••The external command value signal at the differential input 2[ ] ••The external command value signal at the current input [3] The zero point offset 5[ ] (zero point potentiometer "Zw") The zero-point offset (command value zero point setting) is used to correct the zero signal at the input and can be used as command value specification for step setting by means of targeted trimming (compensation of hydraulic valve overlap). ••The called up signal

The following applies: Standard Command value Input signals Flow direction values measuring socket Current input or Differential input –100 % 4 mA –10 V –10 V P to B; A to T 0 % 12 mA 0 V 0 V 100 % 20 mA 10 V 10 V P to A; B to T 0 % < 1 mA 1) 0 V 1) If the current input is not wired-up or if the cable of the current command value is broken, the resulting internal command value signal is 0 %.

There is no switching between current and voltage input. The inputs are permanently available (see terminal assignment).

Command value call-ups [4] Four command value signals "w1" to "w4" can be called up. The external command value voltages (command values 1 to 4) are either defined directly by the regulated voltage outputs +10 V and –10 V or external potentiometers. If these command value inputs are directly connected to the regulated voltages, the command values are set at the potentiometers "w1" to "w4". When using external potentiometers, the internal potentiometers will function as attenuators or limiters. Only one call-up can be operated at the same time. If several call-ups are operated simultaneously, call-up "1" has the lowest priority and call-up "4" has the highest priority. The respective active call-up is indicated via a yellow LED on the front plate.

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5.2.4.3 External command value voltages

The external command value voltages are either defined directly by regulated voltages (+10 V, –10 V; connection b30, b32) or via external potentiometers: ••If these command value inputs are directly connected to the regulated voltages, the command values are set at the potentiometers "w1" to "w4". ••If you are using external potentiometers, the internal potentiometers will function as attenuators or limiters.

b2, b4, b6 or b8

R b32 b30 b32 (+10 V) (–10 V) (+10 V) b28 b28 b30 (0 V) (0 V) (–10 V) Command value range 5 KΩ < R < 20 kΩ 0 to 0 to –100 % +100 % –100 % to +100 %

Fig. 3: Command value setting via external potentiometer

5.2.4.4 Command value inversion [7]

The command value created internally from the input signals, the command value call-ups and the zero point offset signal can be inverted by an external signal or jumper J1. The inversion is displayed by an LED ("–1") on the front plate.

5.2.4.5 Enable function [8]

The enable function enables the power output stage and forwards the internal command value signal to the ramp generator. The enable signal is displayed by an LED on the front plate. If enable is connected, the internal command value is changed (with any kind of command value specification) by the set ramp time. Thus, a controlled valve does not open abruptly.

5.2.4.6 Ram generator [9]

The ramp generator limits the rise of the input signal. A ramp-shaped output signal develops from a specified step signal. The ramp time relates to a command value modification of the input signal of 100 %. The ramp time is not increased or shortened in the downstream characteristic curve generator. Using the ramp "on/off" signal or the jumper J2 the ramp time is set to a minimum (< 2 ms) (ramp off).

Adjustment options You can use jumper "J3" to select the possible setting range of the ramp time: 0.02 - 5 sec. or 0.2 - 50 sec. ••The following applies to the amplifier card VT-VSPA2.../T5:

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––5 different ramp times can be set and enabled (see chapter "Ramp time selection logic"). ––The ramp times can be set using the potentiometers "t1" to "t5" and they can be read and checked by means of the test socket "v". ••The following applies to the amplifier card VT-VSPA2../T1: ––Only one ramp time can be set. This time is the same for all command value modifications (increase, decrease, positive and negative). ––The ramp time can be set using the potentiometer "t" and read and checked on the measuring socket "t" (selection via measuring point selector switch).

External ramp time setting Using an external potentiometer the internally set ramp time can be extended. The setting can be verified by means of the measuring socket. In case of a cable break, the internal default setting will be valid automatically.

+15 V

+10 V

Fig. 4: Ramp time setting via external potentiometer

The setting range is dependent on the resistance "R".

Table 6: Ramp time setting

R Setting range 1) Minimum ramp time potentiometer Maximum ramp time potenti- angle of rotation = left turn ometer angle of rotation = 95 % 1 kΩ 80 msec 1 sec 500 Ω 150 msec 2 sec 100 Ω 0.8 sec 10 sec 2) The minimum ramp time can only be reached if the internally set ramp time is lower, i.e. the corresponding potentiometer is at the left stop.

The specified ramp times are true for jumper "J3" = open.

5.2.5 Ramp on/off The ramp time can be set to a minimum (< 2 msec) via an external signal or a jumper (J2) (= ramp off). This is true irrespective of the specified ramp times. If both measures are set simultaneously, they cancel each other out. If the jumper (J2) is plugged, the 24 V input functions as ramp "on" input. If the ramp is active, this is indicated by an LED "T".

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5.2.6 Ramp time selection logic [19] (only for VT-VSPA2.../T5) The ramp time selection logic enables 3 operating modes: ••4-quadrant operation ••Ramp time call-ups ••Ramp time "t5"

4-quadrant operation If the 4-quadrant operation is active (external 24 V input signal "4Q"), the electronics automatically detects the command value polarity and the command value modification and attributes a ramp time to the current signal state. Dependent on the signal state, one out of 4 ramp times is selected: ••Ramp up, positive (ramp potentiometer "t1") ••Ramp down, positive (ramp potentiometer "t2") ••Ramp up, negative (ramp potentiometer "t3") ••Ramp down, negative (ramp potentiometer "t4")

The 4-quadrant operation has a higher priority than all ramp time call-ups. While a signal change is taking place, the LED attributed to the current ramp time is on. The LEDs are on the front plate directly next to the associated potentiometer.

If the ramp times are very short, you will not be able to perceive the flashing of the LEDs.

If the 4-quadrant operation is active, the LED "4Q" on the front plate is illuminated. Ramp time call-ups If the 4-quadrant operation is not active, 4 ramp times can be called up with any call-up signal (24 V input). Only 1 call-up can be operated at the same time. If several call-ups are operated simultaneously, call-up "1" has the lowest priority and call- up "4" has the highest priority. Each called-up ramp time is indicated via a yellow LED. The LED is on the front plate, directly next to the associated potentiometer.

Ramp time "t5" Ramp time "t5" is always valid, if neither the 4-quadrant operation nor a ramp time call-up are enabled.

5.2.7 Characteristic curve generator [10] After the ramp generator the command value signal is sent to the characteristic curve generator. You can use this feature to separately adjust the step level and the maximum values for positive and negative signals to meet the hydraulic requirements. The actual development of the characteristic curve through the zero point is not stepped but linear. In the condition as supplied, the characteristic curve generator is pre-set. If the jumpers J7, J8 and J9 are plugged, the output characteristic curve is set to the 4WRZ-7X. To control the 4WRA-2X valves, the jumpers J7, J8 and J9 must be unplugged.

Adjustment options ••You can use the jumper "J4" to switch the step function on (J4 = open) or off (J4 = closed).

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To prevent a residual step (< 1 %), you have to switch off the step function (= jumper "J4" closed) and turn the potentiometers "S+" and "S–" to the left stop.

••You can set/correct the step level "S" separately for positive and negative signals using the potentiometers "S+" and "S–". ••You can set the maximum internal command value separately for positive and negative signals. The potentiometers "Gw+" and "Gw–" have been installed for this purpose. The setting range lies between 0 % and 110 %.

Gw+

S+

100 % 2 % +2 % +100 %

← Internal command value→ ← Internal Gw ← Command value specification→

Fig. 5: Correcting the characteristic curve using the characteristic curve generator

5.2.8 Amplitude limiter [11] From the characteristic curve generator the signal is sent to the amplitude limiter [12]. Here, the internal command value is limited to approx. ±110 % of the nominal range.

5.2.9 Power output stage [16] The power output stage [18] creates the clocked solenoid current for the proportional valve. The solenoid current is limited to 2.7 A per output. The output stage outputs are short-circuit-proof. The output stages are de-energized in case of an internal fault signal or if the release is missing.

5.2.10 Clock generator [13] The clock generator creates the clock frequency of the output stages. The clock signal can be switched in three basic frequency ranges using jumpers (J5, J6). ••Clock frequency for 4WRA6-2X, correctable via potentiometer "f". ••Clock frequency for 4WRA10-2X, correctable via potentiometer "f." ••Clock frequency for 4WRZ-7X, correctable via potentiometer "f", also suitable for universal applications.

When setting the WRA valves, the frequency changes depending on the command value and on the operating voltage.

5.2.11 Measuring sockets A measuring socket for the command value (w) and the actual current value (I) is installed on the front plate. The following applies: Command value ±100 % = ±10 V Actual value ±100 % = ±2.5 V

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In addition, a measuring socket (v) is intended for setting the command values. The measuring points are selected via the measuring point selector switch on the front plate. The signal of the measuring socket (v) is also connected to the male multipoint connector.

Table 7: Measuring points and measurement signals

Measuring point Switch position Measurement signal "v" Internal command value 0 ±100 % = ±10 V Command value call-up 1 1 ±100 % = ±10 V Command value call-up 2 2 ±100 % = ±10 V Command value call-up 3 3 ±100 % = ±10 V Command value call-up 4 4 ±100 % = ±10 V Zero point offset "Zw" 5 ±30 % = ±3 V 1 composite signal of the command values 6 ±100 % = ±10 V Ramp output signal 7 ±100 % = ±10 V Not connected 8 Clock frequency 9 Rectangular signal ±15 V Ramp time "t1" A 10 mV to 10 V Ramp time "t2" B 10 mV to 10 V Ramp time "t3" C 10 mV to 10 V Ramp time "t4" D 10 mV to 10 V Ramp time "t5" E 10 mV to 10 V Current ramp time "t" F 10 mV to 10 V

6 Transport and storage

There are no special transport instructions for this product. You must, however, observe the notes in chapter 2 "General safety instructions" and comply with the environmental conditions for storage and transport which are detailed in the technical data of the data sheet.

6.1 Storing the VT-VSPA2-1-2X Proceed as follows in order to prepare the amplifier card for storage and further use: ▶▶ Use the original packaging or an ESD-compliant packaging for storage. ▶▶ Comply with the maximum admissible transport temperature of –25 °C to +85 °C and the admissible storage temperature of 5 °C to 40 °C and ensure a relative air humidity of 0 % to 65 %. ▶▶ Protect the amplifier card from dust, humidity and direct sunlight (100 % UV protection). ▶▶ Additional ozone formation or condensation close to the storage area must be prevented.

RE 30110-B/11.2012, VT-VSPA2-1-2X/V0/T., Bosch Rexroth AG 24/40 Installation

7 Installation

CAUTION Fault currents and short-circuits! Impairment of safety and malfunctions. ▶▶ The environment must be free from electrically conductive contamination (acids, bases, corrosive agents, salts, metal vapors, etc.) and the device must not be exposed to these substances.

Cables lying around! Risk of stumbling. ▶▶ Lay the cables and lines so that they cannot be damaged and no one can trip over them. NOTICE Major potential differences! Danger of destroying the amplifier card by plugging or unplugging while energized. ▶▶ Always de-energize the relevant system part before plugging, unplugging or connecting the device. Damaged devices due to incorrect installation are not covered by the warranty! ▶▶ Observe protection class, voltage supply and environmental conditions according to data sheet RE 30110.

Electrostatic discharge! Danger of destroying the analog amplifier card. ▶▶ Keep the amplifier card in its antistatic packaging until installation and comply with the instructions on the top of the packaging when unpacking the device.

Interference! Risk of malfunctions. ▶▶ The distance to radios must be sufficient (>> 1 m). ▶▶ Do not lay solenoid conductors and signal lines near power cables. ▶▶ Shield command and actual value cables. Shielding open at one side, connect to system earth on the card-side.

7.1 Work steps Perform the steps in the following order: 1. Plug jumper 2. Install card 3. Set command value 4. Set command value zero point 5. Set ramp times (internal/external) 6. Set step level 7. Set maximum values

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Before commencing with the adjustment work, the system-specific wiring must have been completed. Plug jumper Plug jumpers "J1" to "J10" according to the application in such a way that the associated bridge is either open or closed. Please refer to data sheet RE 30110 for setting information.

7.2 Safety regulations ••The amplifier card may only be installed by trained and qualified experts in accordance with the generally valid electrical engineering rules. ••You may only insert the amplifier card into a card holder/rack or remove the amplifier card out of a card holder/rack if the supply lines to the card are de-energized. ••Do not use silicone-containing sealing, adhesive, or insulating agents.

7.3 Installation conditions Power supply unit A suitable power supply unit for the amplifier card is the type VT-NE30-1X, see data sheet 29929. Important installation ▶▶ Prior to installing the card, ensure that all jumpers of the amplifier card are instructions correctly plugged. ▶▶ Only use measuring instruments with an internal resistance (Ri) > 100 kΩ for measurements. ▶▶ For the assembly, observe the notices regarding applied standards and application conditions in the data sheet. ▶▶ Use low-capacitance cables. ▶▶ If possible, design the cable connections without intermediate terminals. ▶▶ The distance from the place of installation of the card to aerial lines, radios, and radar systems has to be 1 m at least. ▶▶ Do not lay solenoid and signal lines near power cables. ▶▶ For solenoid lines up to a length of 50 m, use the cable type LiYCY 1.5 mm². With greater lengths, please contact us! ▶▶ No plug-in connectors with free-wheeling diodes or LED indicators must be used for connecting the solenoid conductors to the valve. ▶▶ Always shield command value lines. Connect shielding to "PE" on the card-side. ▶▶ The system earth is a main component of the amplifier card's EMC protection. It is intended to eliminate interferences which are transported via the data and supply voltage lines. However, this is only possible if the system earth itself does not introduce interferences into the amplifier card. Recommendation: Also shield the solenoid lines.

If the differential input is used, both inputs must always be connected or disconnected at the same time.

▶▶ Use relays with gold-plated contacts for switching command values (low voltages, low currents). ••Electric signals taken out via control electronics (e. g. the "ready for operation" signal) must not be used for switching safety-relevant machine functions. (See also EN ISO 13849 "Safety of machinery - safety-related parts of control systems").

RE 30110-B/11.2012, VT-VSPA2-1-2X/V0/T., Bosch Rexroth AG 26/40 Installation

••The system earth is a main component of the control electronics' EMC protection. Here, interference is eliminated which is transported to the control electronics via the data and supply voltage lines. This function is only ensured if the system earth itself does not introduce interference into the control electronics. Bosch Rexroth recommends screening the solenoid lines as well. ••Ensure a maintenance-friendly installation, i.e. simple access to the connection lines. Free access to the connecting side must be guaranteed. The cable ends should be sufficiently long so that the amplifier card can also be dismounted in the wired condition. ••Before installation note down the information on the nameplates. If, after the installation, nameplates are no longer visible or legible, these data will be quickly available to you at any time.

7.4 Unpacking the amplifier card ▶▶ Only remove the card immediately before installing it at a protected workplace. ▶▶ Hold the amplifier card at the front plate taking care not to touch electrical components.

7.5 Installing the amplifier card The amplifier card is set up as printed circuit board in europe format, 100 x 160 mm, and suitable for installation in a rack. Suitable card holders are: ••Closed card holder VT12302 (see RE 30103) + blind plate 4 TE/3 HE (mat.no.: R978009974) ••Open card holder VT3002-1-2X/48F (see RE 29928)

Proceed as follows when installing the amplifier card VT-VSPA2: 1. De-energize the rack or card holder used. 2. Only remove the card from its packaging at a protected workplace. 3. Open the packaging of the amplifier card and remove it by pulling it out by the front plate. 4. Insert the amplifier card into the guide rails of the rack without using force. 5. Gently press the amplifier card into the front plate until it locks in place. 6. Tighten the two mounting bolts on the front plate.

The amplifier card has now been correctly installed.

The open card holder may only be used if installed in a control cabinet. Contact protection can only be ensured in this case.

Make sure that the admissible operating temperature range of 0 to 50 °C is complied with at the place of installation .

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Table 8: Allocation of the male multipoint connector

Pin Row d Row b Row z 2 Command value call-up 1 (24 V input) Command value 1 Solenoid a+ (potentiometer port connection ±10 V) 4 Command value call-up 2 (24 V input) Command value 2 Solenoid a– (potentiometer port connection ±10 V) 6 Command value call-up 3 (24 V input) Command value 3 Solenoid b+ (potentiometer port connection ±10 V) 8 Command value call-up 4 (24 V input) Command value 4 Solenoid b– (potentiometer port connection ±10 V) 10 Ramp call-up 1 (24 V input) 3) Inverting of command value (24 V input) Reserved 12 Ramp call-up 2 (24 V-C) 3) Ramp on/off (24 V input) Reserved 14 Ramp call-up 3 (24 V input) 3) Command value 5+ (10 V) Reserved 16 Ramp call-up 4 (24 V input) 3) Command value 5– (–10 V) Reserved 18 Enable (24 V input) Reserved Reserved 20 Reserved 4-quadrant operation (24 V input) 3) System earth 22 Ready for operation signal Command value 6+ (4 to 20 mA) Reserved (24 V, active high, 50 mA) 24 Ramp external Command value 6– (4 to 20 mA) Reserved 26 Reserved Measuring point signal Reserved 28 Reference/ramp external Reference potential for outputs (M0) Reserved 30 Command value output ±10 V –10 V/25 mA Operating voltage (24 V) 32 Actual value output ±10 V +10 V/25 mA L0 (0 V)

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8 Commissioning

8.1 Safety regulations Commissioning of the amplifier card requires particular knowledge of electronics and hydraulic systems. Therefore, amplifier cards may only be commissioned by experts having knowledge of: ••The function of the card and the hydraulic system ••The properties of the amplifier card ••The function of the superior control system

The warranty expires if you change the setting of the sealed potentiometer ("ramp time symmetry" and "internal reference voltage). ▶▶ Prior to installing the card, ensure that the jumpers on the amplifier card are correctly plugged.

▶▶ Only use measuring instruments with an internal resistance (Ri) > 100 kΩ for measurements. ▶▶ Use a screwdriver with a blade width of 4 mm for adjusting the potentiometers and selecting the measuring point selector switch (VT-.../T5).

8.2 Setting the amplifier card Setting ranges The anolog amplifier card offers the following setting ranges: Denomination Potentiometer Setting range Zero adjustment "Zw" ±30 % Command values "w" to "w4" 0 to 110 % Ramp times "t1" to "t5" (option T5) 0.02 to 5 sec.; switchable 0.2 to 50 sec „t" (option T1) Step level "S+" and "S–" 0 to 50 % Amplitude attenuator "Gw+" and "Gw–" 0 to 110 % (applies to the step level setting of 0 %) Clock frequency "t" J5, J6 ≅ 4WRA6: f = 300 Hz...370 Hz J5, J6 ≅ 4WRA10: f = 180 Hz...410 Hz J5, J6 ≅ 4WRZ: f = 170 Hz J5, J6 ≅ 3DREP: f = 170 Hz

8.2.1 Setting the command value zero point The command value zero point setting is used to: ••Correct the zero signal at the input ••Set the step function for command value specification if no internal command value is available

Option VT-.../T1 Procedure: Prerequisite: No command value call-up must be operated. 1. Set external command value specifications to 0 V. 2. Set internal command value to 0 V using the potentiometer "Zw". Check the setting of the measuring socket "w". Option VT-.../T5 Procedure: Prerequisite: No command value call-up must be operated. 1. Set external command value specifications to 0 V.

Bosch Rexroth AG, VT-VSPA2-1-2X/V0/T., RE 30110-B/11.2012 Commissioning 29/40

2. Set measuring point selector switch to "6". 3. Set internal command value to 0 V using the potentiometer "Zw". Check the setting of the measuring socket "w".

8.2.2 Setting the command value Option VT-.../T1 Procedure: 1. Select the command value that is to be set (1, 2, 3, or 4) using a call-up signal (command value call-up 1 to 4). 2. Set the desired command value using the associated potentiometer "w1"..."w4" (or the connected external potentiometer). Check the setting of the measuring socket "w". You can now set the next command value. Option VT-.../T5 Procedure: 1. Select the command value that is to be set (1, 2, 3, or 4) using a call-up signal (command value call-up 1 to 4). 2. Switch the measuring point selector switch to the command value that is to be set (switch position 1, 2, 3 or 4 = command value call-up 1 to 4). 3. Set the desired command value using the associated potentiometer "w1"..."w4" (or the connected external potentiometer). Check the setting of the measuring socket "v".

8.2.3 Setting the ramp time Setting ramp You can use the ramp time setting to limit the stop of the hydraulic drive. times internally Conversion table The table below lists the ramp time corresponding to the measured test voltage.

100 msec The conversion formula is: t = / Utest socket/V

Table 9: Ramp times and test voltages

J3 Utest socket/V 5 3 2 1 0,5 0,3 0,2 0,1 0,05 0,03 0,02 Open (= basic t/msec ±20 % 20 33 50 100 200 333 500 1000 2000 3333 5000 setting) Plugged t/sec ±20 % 0.2 0.33 0.50 1 2 3.33 5 10 20 33 50

Option VT-.../T1 Procedure: ▶▶ Set the ramp time using the potentiometer "t" according to the conversion formula or conversion table. Check the setting of the measuring socket "t". Option VT-.../T5 Procedure: 1. Switch the measuring point selector switch to the ramp time that is to be set (t1 to t5). 2. Set the ramp time using the associated potentiometer (t1 to t5) according to the conversion formula or conversion table. Check the setting of the measuring socket "v".

You can now set the next ramp time (repeat procedure).

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8.2.4 Externally setting the ramp time If you use an additional potentiometer, you have the following options: ••Increasing the internally set ramp time ••Remote control of the ramp time ••Changing the ramp time by means of analog step specification of an external control

Conversion table The table below lists the ramp time corresponding to the measured test voltage.

100 msec The conversion formula is: t = / Utest socket/V

Table 10: Ramp times and test voltages

J3 Utest socket/V 5 3 2 1 0,5 0,3 0,2 0,1 0,05 0,03 0,02 Open (= basic t/msec ±20 % 20 33 50 100 200 333 500 1000 2000 3333 5000 setting) Plugged t/sec ±20 % 0.2 0.33 0.50 1 2 3.33 5 10 20 33 50

Option VT-.../T1 Procedure: 1. Turn ramp potentiometer "t" to the left stop. 2. Set the ramp time using the external potentiometer according to the conversion formula or conversion table. Check the setting of the measuring socket "t". Option VT-.../T5 Procedure: Prerequisite: No ramp call-up must be operated. 1. Turn potentiometer "t5" to the left stop. 2. Switch measuring point selector switch to "F" (= current ramp time "t"). 3. Set the ramp time using the external potentiometer according to the conversion formula or conversion table. Check the setting of the measuring socket "v".

You can now set the next ramp time (repeat procedure).

8.2.5 Setting the step level By setting the step level, you can correct the characteristic curve of the command value signal and adjust it to the hydraulic requirements. This adjustment option is used to: ••Compensate the hydraulic valve spool overlap ••Set the optimal creep speed for defined input signals

Option VT-.../T1 Procedure: Prerequisite: Enable signal is connected, jumper J4 is open. 1. Read all settings on the measuring socket "w". 2. Turn potentiometers "S+" and "S–" to the left stop. 3. Use potentiometer "Zw" to set the measurement signal to +0.3 V. 4. Use potentiometer "S+" to set the required step level. 5. Use potentiometer "Zw" to set the measurement signal to –0.3 V. 6. Use potentiometer "S–" to set the required step level. 7. Use potentiometer "Zw" to set the zero point.

Bosch Rexroth AG, VT-VSPA2-1-2X/V0/T., RE 30110-B/11.2012 Commissioning 31/40

If command values are externally specified, the value at the measuring socket "w" (with S+/S– at left turn) must be at least +0.3 V/–0.3 V.

Option VT-.../T5 Procedure: Prerequisite: Enable signal is connected, jumper J4 is open. 1. Read all settings on the measuring socket "v". 2. Set measuring point selector switch to "7". 3. Use potentiometer "Zw" to set the measurement signal to 0.3 V. 4. Set measuring point selector switch to "0". 5. Use potentiometer "S+" to set the required step level. 6. Set measuring point selector switch to "7". 7. Use potentiometer "Zw" to set the measurement signal to –0.3 V. 8. Set measuring point selector switch to "0". 9. Use potentiometer "S–" to set the required step level. 10. Use potentiometer "Zw" to set the zero point.

If command values are externally specified, the value at the measuring socket "v" (measuring point switch position "7") must be at least +0.3 V/–0.3 V.

8.2.6 Setting the maximum values By setting the maximum values for positive and negative signals, you can correct the characteristic curve of the command value signal and adjust it to the hydraulic requirements (e. g. to balance the forwards and return movement).

Option VT-.../T1 Procedure: Prerequisite: Before comparing the maximum values, zero point and step levels must be set correctly. 1. Create the command value = ±100 % externally or by command value call-up. 2. Use the potentiometer "Gw+"/"Gw–" to set the required maximum value. Check the setting of the measuring socket "w". Option VT-.../T5 Procedure: Prerequisite: Before comparing the maximum values, zero point and step levels must be set correctly. 1. Create the command value = ±100 % externally or by command value call-up. 2. Set measuring point selector switch to "7". Check at measuring socket "v" whether the measurement signal = 10 V ± 0.2 V. 3. Use the potentiometers "Gw+"/"Gw–" to set the required maximum value. Check the setting of the measuring socket "w".

The clock frequency of the output stage can be reached using the potentiometer "f". The new setting can be carried out with a digital multimeter that is able to measure frequencies.

Option VT-.../T1 Measuring at male multipoint connectors pin Z2 to ground Z32 or pin Z6 to ground Z32 Option VT-.../T5 Measuring socket selector switch position "9" In the condition as supplied, the setting of the clock frequency corresponds to the requirements of the valve WRZ. Rotating the "f" potentiometer changes the valve hysteresis and may lead to disturbing noise developments.

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Condition as supplied: WRZ: f = 170 Hz WRA10 and "w"= 0: f = 380 Hz WRA6 and "w"= 0: f = 350 Hz

9 Maintenance and repair

9.1 Cleaning and care (maintenance) NOTICE Operating failures! Loss of functionality due to penetrating dirt and humidity ▶▶ Always provide for absolute cleanliness when working on the VT-VSPA2-1-2X amplifier card. ▶▶ Only use a dry and dust-free cloth for all cleaning works.

9.2 Maintenance In order to ensure a long life cycle and functionality, include the following activities in your maintenance schedule for the VT-VSPA2-1-2X amplifier card: ▶▶ Check all clamping connections for correct seat and damage at least once per year. Check lines for break or squeezing. ▶▶ Have defective or damaged devices exchanged immediately.

9.3 Repair The VT-VSPA2-1-2X amplifier card can only be exchanged as whole unit. For safety reasons, modifications at the VT-VSPA2-1-2X performed to one's own author- ity are not admissible! Repair and maintenance works may only be performed by Bosch Rexroth AG. For repair and maintenance works, send the device to the service address specified in chapter 15.

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10 Disassembly and exchange

10.1 Preparing for disassembly NOTICE Incorrectly performed disassembly! The device might be destroyed! ▶▶ Decommission the entire system as described in the overall system manual. ▶▶ De-energize the device and all connected components.

10.2 Disassembling the product Disassemble the amplifier card performing the steps described in chapter 7 "Installa- tion" from page 24 onwards in reverse order.

10.3 Preparing the components for storage/further use Proceed as follows in order to prepare the VT-VSPA2-1-2X amplifier card for storage and further use: ▶▶ Only use the original packaging for storage. ▶▶ Comply with the admissible storage temperature range specified in RE 30110. ▶▶ Protect the amplifier card from dust and humidity.

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11 Disposal

11.1 Environmental protection Careless disposal of the VT-VSPA2-1-2X amplifier card and the packaging material could lead to pollution of the environment. ▶▶ Thus, dispose of the VT-VSPA2-1-2X amplifier card and the packaging material in accordance with the currently applicable national regulations in your country.

11.2 Return to Bosch Rexroth AG The products manufactured by us can be returned to us for disposal purposes at no costs. However, the precondition is that there are no spurious adherences or any other contamination. Hydraulic products have to be drained before being returned. Furthermore, there must be no inappropriate foreign matter or third party components when products are returned. The products have to be sent free to the door to the following address: Bosch Rexroth AG Service Industriehydraulik [Industrial hydraulics] Bgm.-Dr.-Nebel-Straße 8 97816 Lohr am Main Germany

11.3 Packaging Upon request, reusable systems can be used for regular deliveries. The materials for disposable packagings are mostly cardboard, wood, and styrofoam. They can be recycled without any problems. Due to ecological reasons, disposable packagings should not be used for returning products to us.

11.4 Materials used Our products do not contain any hazardous materials that could be released during intended use. Normally, no adverse effects on human beings and on the environment have to be expected. The products essentially consist of: ••Electronic components and assemblies

11.5 Recycling Due to the high share of metal, the products can mostly be recycled. In order to achieve an ideal metal recovery, disassembly into individual assemblies is required. The metals contained in electric and electronic assemblies can be recovered by means of special separation procedures as well. If the products contain batteries or accumulators, these have to be removed before recycling and furnished to the battery recycling, if possible.

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12 Extension and modification

The VT-VSPA2-1-2X amplifier card must neither be extended nor converted. If you convert the VT-VSPA2-1-2X amplifier card, warranty will expire.

13 Troubleshooting

13.1 How to proceed for troubleshooting ••Always work systematically and targeted, even when under time pressure. Random, thoughtless disassembly and changing of settings can, in the worst-case-scenario, result in the inability to determine the original error cause. ••First get a general idea of how your product works in conjunction with the overall system. ••Try to find out whether the product has worked properly in conjunction with the overall system before the error occurred first. ••Try to determine any changes of the overall system in which the product is integrated: ––Were there any changes to the product's application conditions or area of application? ––Were there any changes (e. g. refittings) or have repairs been carried out at the overall system (machine/system, electrical systems, control) or at the product? If so: What were they? ––Was the product or machine used as intended? ––How did the fault become apparent? ––Try to get a clear idea of the cause of the error. Ask the direct (machine) operator. ––If you could not remedy the occurred error, please contact one of the addresses you find atwww.boschrexroth.com or in the list of addresses in the appendix.

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14 Technical data

In this connection, please refer to data sheet 30110 and the valid product-specific documentation. For the valid data sheets, please refer to: www.boschrexroth.com/medienverzeichnis Information on the environment simulation testing for the areas EMC (electromagnetic compatibility), climate and mechanical load see "environmental compatibility statement" (RE 30110-U).

Table 11: Setting ranges

Denomination Potentiometer Setting range Zero adjustment "Zw" ±30 % Command values "w" to "w4" 0 to 110 % Ramp times "t1" to "t5" (option T5) 0.02 to 5 sec.; switchable 0.2 to 50 sec "t" (option T1) Step level "S+" and "S–" 0 to 50 % Amplitude attenuator "Gw+" and "Gw–" 0 to 110 % (applies to the step level setting of 0 %) Clock frequency "t" J5, J6 ≅ 4WRZ: f = 150 Hz...400 Hz J5, J6 ≅ 4WRA10: f = 180 Hz...380 Hz ±15 % J5, J6 ≅ 4WRA6: f = 240 Hz..0.350 Hz ±15 %

Table 12: Specification of the inputs

Denomination Value

Command values 1 - 4 Ue 0 to ±10 V Re = 100 kΩ (M0 is reference) (potentiometer inputs)

Command value 5 Ue 0 to ±10 V Re = 50 kΩ (differential input)

Command value 6 (current input) Ie 0 to 20 mA; RB = 100 kΩ

Ramp time external Ue 0 to ±10 V Re = 10 kΩ (internally increased to +15 V; M0 is reference)

Command value call-ups U 8.5 V to UB → call-up operated; Re > 100 kΩ

0 to 6.5 V → no call-up; Re > 100 kΩ

Ramp call-ups (option T5) U 8.5 V to UB → call-up operated; Re > 100 kΩ U 0 to 6.5 V → no call-up; Re > 100 kΩ

Quadrant recognition (option T1) U 8.5 V to UB → ON; Re > 100 kΩ

0 to 6.5 V → OFF; Re > 100 kΩ

Command value inversion U 8.5 V to UB → ON; Re > 100 kΩ

0 to 6.5 V → OFF; Re > 100 kΩ

Enable U 8.5 V to UB → ON; Re > 100 kΩ

0 to 6.5 V → OFF; Re > 100 kΩ

Ramp on/off U 8.5 V to UB → ON; Re > 100 kΩ

0 to 6.5 V → OFF; Re > 100 kΩ

Bosch Rexroth AG, VT-VSPA2-1-2X/V0/T., RE 30110-B/11.2012 Appendix 37/40

Table 13: Specification of the outputs

Denomination Value

Command value signal U ±10 V ±2 %; Imax = 2 mA

Actual value signal U ±2.5 V ±2 %; Imax = 2 mA; 1 mV = 1 mA

Measuring point signal (option T5) U ±10 V ±2 %; Imax = 2 mA

Ready for operation U > 16 V, 50 mA; (in case of fault < 1 V, Ri = 10 kΩ) Regulated voltages U +10 V ±2 %; 25 mA; short-circuit-proof +10 V ±2 %; 25 mA; short-circuit-proof Power output stage I 0 to 2.5 mA; short-circuit-proof, clocked Measuring sockets

Command value U ±10 V ±2 %; Imax = 2 mA

Actual current value U ±2.5 V ±2 %; Imax = 2 mA (mV ≙ mA)

15 Appendix

15.1 List of addresses

15.1.1 Contacts for repairs and support Bosch Rexroth AG Service Industriehydraulik [Industrial hydraulics] Bgm.-Dr.-Nebel-Straße 8 97816 Lohr am Main Germany

Phone +49 (0) 9352 40 50 60 http://www.boschrexroth.com/service Email: [email protected]

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16 Alphabetical index

▶▶ A ▶▶ M Accessories 12 Maintenance and repair 32 Amplitude limiter 22 Male multipoint connector –– Allocation 27 ▶▶ B Measuring sockets 22 Block diagrams/pin assignments of the amplifier card 14 ▶▶ P Performance description 13 ▶▶ C Power output stage 22 Clock generator 22 Power supply unit 18 Command value inversion 19 Product description 13 Command value specification 18 –– Command value call-ups 18 ▶▶ Q –– Internal command value signal 18 Qualification 8 Command value voltages –– externally 19 ▶▶ R Commissioning 28 Ramp generator 19 –– Safety regulations 28 –– Adjustment options 19 –– External ramp time setting 20 ▶▶ D Ramp on/off 20 Damage to property 11 Ramp times and test voltages 29, 30 Designations 6 Ramp time selection logic 21 Disassembly and exchange 33 –– 4-quadrant operation 21 Disposal 34 –– Adjustment options 21 –– Ramp time call-ups 21 ▶▶ E –– Ramp time „t5“ 21 Enable function 19 Recycling 34 Environmental protection 34 Required documentation 5 Extension and modification 35 Return to Bosch Rexroth AG 34

▶▶ F ▶▶ S Features of the amplifier card 13 Safety instructions 7 Functions and components of the –– General 8 amplifier card 18 –– Product-specific 9 –– Signal word 6 ▶▶ I Scope of delivery 12 Information on damage to property Setting and display elements 16 and damage to the product 11 Setting ranges 36 Installation 24, 26 Settings –– Installation conditions 25 –– Command value 29 –– Safety regulations 25 –– Command value zero point 28 –– Work steps 24 –– Maximum values 31 Installation conditions 25 –– Ramp time 29 Intended use 7 –– Step level 30 Setting the amplifier card 28 Setting the command value 29

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Setting the command value zero point 28 Setting the maximum values 31 Setting the ramp time 29 –– externally 30 Setting the step level 30 Specification of the inputs 36 Specification of the outputs 37 Storage 23 Symbols 6

▶▶ T Technical data 36 Transport 23 Troubleshooting 35

▶▶ U Unpacking 26

▶▶ W Warranty 12

RE 30110-B/11.2012, VT-VSPA2-1-2X/V0/T., Bosch Rexroth AG Bosch Rexroth AG Zum Eisengießer 1 97816 Lohr am Main Germany Phone +49 (0) 9352 18-0 [email protected] www.boschrexroth.com

Subject to change without notice Printed in Germany RE 30110-B, 11.2012 RE 30110-Z/10.12 1/10 Analog amplifier card Replace: 12.11 Type VT-VSPA2-1-2X/V0/T1 Type VT-VSPA2-1-2X/V0/T5

Additional information

Information regarding the conversion of different amplifier cards to amplifier card type VT-VSPA2-1-2X/V0/T1 Material number R901002090 and amplifier card type VT-VSPA2-1-2X/V0/T5 Material number R901002095

HAD6641

Considering the prerequisites mentioned in this additional information, the analog amplifier cards type VT-VSPA2-1-2X/V0/T1 and VT-VSPA2-1-2X/V0/T5 can be used as replacement for the following amplifier modules: VT-VSPA2-1-2X/V0/T1 as replacement for: VT-VSPA2-1-2X/V0/T5 as replacement for: • VT 3000-3X • VT 3006-3X • VT 3013-3X • VT 3017-3X • VT 3014-3X • VT 3018-3X • VT 3026-3X • VT-VSPA2-1-1X/T5 • VT-VSPA2-1-1X/T1 • VT-VSPA2-50-1X/T5 • VT-VSPA2-50-1X/T1

You must imperatively comply with the order of the work steps specified in this additional information!

Notes: Assembly of the product requires basic electrical knowledge: • The product may only be re-wired and assembled by qualified personnel. • De-energize the amplifier card before any work! 2/10 Bosch Rexroth AG Hydraulics Additional information RE 30110-Z/10.12

Configurations for VT-VSPA2-1-2X/V0/... 2) .WRZ 500 mA 1500 mA 3DREP6 series 7X) series 2X), (RE 30113) 220 Hz ± 10 % (from component (from component VT-VSPA2-50-1X/T1 VT-VSPA2-50-1X/T5 2) 2) 2) pen Jumper open pen Jumper open pen Jumper open pen Jumper open 4WRA10 350 mA 2500 mA (from compo- 180 Hz ± 10 % nent series 2X) series nent 2) 2) 2) (RE 30112) VT-VSPA2-1-1X/T1 VT-VSPA2-1-1X/T5 4WRA6 (from compo- 300 Hz ± 10 % nent series 2X) 2) , the supply voltage must lie between 28 and 30 VDC! VT 3014 VT 3018 (RE 29937) (RE 29939) Jumper 6 open 100 Hz ± 10 % 2) VT 3006 and 500 mA 500 mA 350 mA 4WRA6 4WRA10 1500 mA 1500 mA 2500 mA VT 3013 VT 3017 (RE 29937) (RE 29939) VT 3000 1) 1) 2) 2) .WRZ 800 mA 200 mA VT 3000 VT 3006 series 6X) series 1X) component (RE 29935) (RE 29926) (in each case 170 Hz ± 10 % 190 Hz ± 10 % (to component DBEP6, 3DREP6 2) or the amplifier types "I" against "M0"! 2) 2) he data sheets specified above. VT 3026 200 mA 600 mA (RE 30093) Jumper open Jumper open Jumper open Jumper open Jumper open Jumper o Jumper open Jumper open Jumper open Jumper open Jumper open Jumper o Jumper open Jumper open Jumper open Jumper open Jumper open Jumper o Jumper open Jumper open Jumper open Jumper open Jumper open Jumper o A4VG…EP2 100 Hz ± 10 % f for: of S+ and S– Configuration of Gw+ and Gw– Setting by means Setting by means Setting by means of potentiometer

170 Hz 500 mA 1500 mA Ramp on 30 ms to 5 s Not inverting Jumper open Jumper open Jumper open Jumper open Step function on Factory setting VT-VSPA2-1-2X/V0/...

When using the amplifiers VT-VSPA2-1-2X/V0/... as replacement f These values must be set! Step level J8, J9 closed Inversion J1 Maximum current setting J7 closed Ramp time J3 Ramp function J2 Step function J4 Clock frequency J5, J6 closed Table 1: Configurations VT-VSPA2-1-2X/V0/T1 and T5 1) 2) For more information (characteristic curves, etc. …) refer to t In all measurements, you must measure from the measuring socket Please note: The order of the following steps must imperatively be observed! RE 30110-Z/10.12 Additional information Hydraulics Bosch Rexroth AG 3/10

Pre-settings

• VT-VSPA2-1-2X/V0/T1 serves as replacement for: The following pre-settings must be made before the exact adjustment of VT-VSPA2-1-2X/V0/T1 or T5: VT 3000, VT 3013, VT 3014, VT 3026, VT- VSPA2-1-1X/T1, VT- VSPA2-50-1X/T1 • Exchange the card holder: When replacing the amplifier card listed in the matrix by the amplifier cards VT-VSPA2-1-2X/V0/T1 and T5, you • VT-VSPA2-1-2X/V0/T5 serves as replacement for: must moreover replace the existing card holder by the DIN VT 3006, VT 3017, VT 3018, VT-VSPA2-1-1X/T5, female multipoint VT 3002-1-2X/32D by a card holder with VT-VSPA2-50-1X/T5 the DIN female multipoint VT 3002-1-2X/48F. • Carry out the re-wiring using the following table (differences in the wiring are marked in gray): Re-wiring table

VT-VSPA2-1-2X/T1 VT-VSPA2-1-2X/T5 Terminal VT30... VT-VSPA2...1X Terminal Terminal 2a Output switch-over ±9 V Not available 1) Not available 1) 2c – Ready for operation d22 d22 4a Call-up command value/ramp 2 d4 d4 and d12 4c Call-up switch-over ±9 V Not available 1) Not available 1) 6a Call-up command value/ramp 3 d6 d6 and d14 6c Call-up command value/ramp 4 d8 d8 and d16 8a Input command value 3 b6 b6 8c Call-up command value/ramp 1 d2 d2 and d10 10a Input command value 2 b4 b4 10c Input command value 1 b2 b2 12a Input command value 4 b8 b8 12c Input command value 5 Not available 1) Not available 1) 14a Ramp external d28 d28 14c Ramp external d24 d24 16a Differential input b14 b14 16c Differential input b16 b16 18a Command value output d30 d30 18c Call-up ramp off Not available 1) Not available 1) 20a Measurement null b28 b28 20c +9 V output b32 b32 22a Pin 1 solenoid B z6 z6 24a Pin 1 solenoid A z2 z2 26a 0 V input voltage z32 z32 26c Output –9 V b30 b30 28a Pin 2 solenoid B z8 z8 28c Call-up voltage relay z30 z30 30a Pin 2 solenoid A z4 z4 30c – Release external d18 d18

32a +UB Operating voltage z30 z30

32c +UB Operating voltage – d18 d18 Table 2: Re-wiring 1) If the relevant function has previously been used, please refer to your sales contact partner. The individual functions that are assigned to the relevant terminals are shown in the block diagrams on the following pages. 4/10 Bosch Rexroth AG Hydraulics Additional information RE 30110-Z/10.12

Block diagram / pinout VT 3000, VT 3013, VT 3014, VT 3026 B 0 V + U Solenoid "B" Operating voltage Solenoid "A" Command value after ramp F = On front plate X1 22a 30a 18a 24a 28a 32c 32a 26a i i 7 7 u u 8 2200 µF S S 7 7 F B I Command values Differential input Summing device Ramp generator Step function generator Power output stage Clock generator Monitoring Power supply 2,5 A T A 2,5 Bias current Solenoid "A" Bias current Solenoid "B" 1 1 2 3; 6 4 5 7 8 9 10 F " " F A B w H11 at "I at "I A B I I 6 F S A I 9 5 = 10 Current command value at "w" 0 to +6 V for solenoid "A" 0 to –6 V for solenoid "B" Actual current value Actual current value F F F F F H12 H1 H4 H3 H2 4 F Call-up relay Command values Ramp time t K5 K6 J5, J6 K6 R4 K5 to to S 3 K1 R1 t K4 + K6 K4.1 K3 F R4 u 1 K3.1 2 K2 F u R3 K2.1 F K1 R2 1 K1.1 F R1 8a 16a 16c 14c 14a 12c 12a 10a 10c 20a 4a 2a 8c 26c 20c 4c 6a 6c 28c 18c X1 M0 Display of the command value call-ups "power on" "Ready for operation" 9 V + 9 V H4 to H11 H12 H1 Ramp external Command value 6 Reference potential Auxiliary voltage ±9 V Command value 5 ±6 V Command value 4 ±9 V Command value 3 ±9 V Command value 2 ±9 V Command value 1 ±9 V Call-up "Ramp off" Call-up command value 1 Call-up command value 2 Call-up command value 3 Call-up command value 4 to the operating voltage! Measurement null (M0) is Relay call-up voltage (+24 V) Differential input increased by 9 V as compared Call-up "Switch-over auxiliary voltage" Positive command value controls solenoid "B". Negative command value controls solenoid "A". RE 30110-Z/10.12 Additional information Hydraulics Bosch Rexroth AG 5/10

Block diagram / pinout VT 3006, VT 3017, VT 3018 A" " B 0 V +U Solenoid "B" F = On front plate Operating voltage Solenoid Command value after ramp X1 32c 26a 28a 30a 24a 32a 18a 22a i i 7 7 u u 8 S S 7 7 F B I Command values Differential input Summing device Ramp generator Step function generator Power output stage Clock generator Monitoring Power supply 2,5 A T A 2,5 Bias current Solenoid "B" Bias current Solenoid "A" " " 1 2 3; 6 4 5 7 8 9 10 A B F F w at "I at "I H11 A B I I S 6 F A I 9 5 = 10 Current command value at "w" 0 to +6 V for solenoid "A" 0 to –6 V for solenoid "B" Actual current value Actual current value F F F F F H12 H1 H4 H3 H2 4 K5 J5, J6 J5, K6 Call-up relay Command values Ramp time F t4 K4.2 K5 S K6 R4 F 3 t5 to to t3 K3.2 to K4 + K1 R1 t1 F t2 K2.2 K6 K4.1 K3 F F K1.2 t1 R4 u 1 K3.1 2 F F K2 u t5 R3 K2.1 F K1 R2 1 K1.1 F R1 8a 16a 14c 16c 14a 12c 12a 10a 10c 20a 4a 8c 2a 26c 20c 4c 6a 6c 28c 18c X1 M0 9 V +9 V "power on" "Ready for operation" Display of the command value call-ups H4 to Ramp external H1 H11 H12 Command value 6 Reference potential Auxiliary voltage ±9 V Command value 5 ±6 V Command value 4 ±9 V Command value 3 ±9 V Command value 2 ±9 V Command value 1 ±9 V Call-up "Ramp off" Call-up command value 1 Call-up command value 2 Call-up command value 3 Call-up command value 4 Relay call-up voltage (+24 V) Differential input Call-up "Switch-over auxiliary voltage" V as compared to the operating voltage! Measurement null (M0) is increased by 9 Positive command value controls solenoid "B". Negative command value controls solenoid "A". 6/10 Bosch Rexroth AG Hydraulics Additional information RE 30110-Z/10.12

Block diagram / pinout VT-VSPA2-1-1X/T1 Solenoid "A" Solenoid "B" B "Ready for operation" Operating voltage + U 0 V X1 2c 26a 30a 32a 24a 22a 28a 32c F = On front plate i i 8 8 u u F 8 H12 PI PI 7 7 F Ba Bb B I 2200 µF Gwb Gwa " " F A B w Command values Differential input Summing device Ramp generator Step function generator PI current controller Output stage with clock generator Power supply Monitoring Cable break monitoring (only with 4 to 20 mA) at "I at "I A B I I 3,15 AT 3,15 å 1 2 3; 6 4 5 7 8 9 10 11 6 F A I 10 9 = 5 11 10 =1 =1 Current command value at "w" 0 to +6 V for solenoid "A" 0 to –6 V for solenoid "B" Actual current value Actual current value F F F F F H4 H2 H1 H3 t 4 K5 K6 J5, J6 K5 å 3 Zw Zero point command value Bias current solenoid "A" Bias current solenoid "B" Ramp time K4 + Zw Ba Bb t K6 K4 K3 1 F 2 R4 u K3 F K2 u/i 1 J1 J4 R3 F K2 F K1 H11 R2 B K1 F J7 + U R1 8a 6c 4c 6a 8c 20c 14c 4a 2a 30c 18c 18a 20a 16a 16c 14a 12c 12a 10a 10c 28c 26c X1 ) M0 B 9 V + 9 V Ramp external Command values Command value attenuator solenoid "A" Command value attenuator solenoid "B" Call-up relay LED display of the command value call-ups Command value 6 Reference potential J7: Release internal Auxiliary voltage ±9 V R4 H4 K6 Release external (+U Command value 5 ±6 V Command value 4 ±9 V Command value 3 ±9 V Command value 2 ±9 V Command value 1 ±9 V to to to Call-up "Ramp off" Command value after ramp Gwa Gwb R1 H1 K1 to the operating voltage! Call-up command value 1 Call-up command value 2 Call-up command value 3 Call-up command value 4 Relay call-up voltage (+24 V) Differential input Measurement null (M0) is increased by Call-up "Switch-over auxiliary voltage" Positive command value (0 V to 10 or 12 mA to 20 mA) controls solenoid "B". Negative command value (–10 V to 0 or 4 mA to 12 mA) controls solenoid "A". 9 V as compared RE 30110-Z/10.12 Additional information Hydraulics Bosch Rexroth AG 7/10

Block diagram / pinout VT-VSPA2-1-1X/T5 Solenoid "A" Solenoid "B" B "Ready for operation" + U 0 V Operating voltage X1 2c 26a 30a 32a 24a 22a 28a 32c i i F = On front plate 8 8 u u F 8 H12 PI PI 7 7 F Ba Bb B I 2200 µF Gwb Gwa " " A B F w Command values Differential input Summing device Ramp generator Step function generator PI current controller Power supply Monitoring Cable break monitoring (only with 4 to 20 mA) Output stage with clock generator at "I at "I A B I I 3,15 AT 3,15 å 6 1 2 3; 6 4 5 7 8 9 10 11 F A I 10 9 = 5 Current command value at "w" 0 to +6 V for solenoid "A" 0 to –6 V for solenoid "B" Actual current value Actual current value 11 10 =1 =1 F F F F H4 H2 H1 H3 4 K5 K6 J5, J6 F t4 K4.2 K5 å F 3 Zero point command value Bias current solenoid "A" Bias current solenoid "B" Ramp times Zw t3 K3.2 K4 F t2 t5 K2.2 + to F K6 K4 K3 1 F 2 Zw Ba Bb t1 t1 K1.2 R4 u F K3 F K2 t5 u/i 1 J1 J4 R3 F K2 F K1 H11 R2 B K1 F J7 + U R1 8a 6c 4c 6a 10c 14a 8c 20c 4a 2a 30c 18c 18a 20a 14c 16a 16c 12c 12a 10a 28c 26c X1 ) B M0 9 V + 9 V Ramp external Command values Command value attenuator solenoid "A" Command value attenuator solenoid "B" Call-up relay LED display of the command value call-ups Command value 6 J7: Release internal Auxiliary voltage ±9 V Release external (+U Command value 5 ±6 V Command value 4 ±9 V Command value 3 ±9 V Command value 2 ±9 V Command value 1 ±9 V R4 H4 K6 Reference potential/GND Call-up "Ramp off" to to to Command value after ramp Gwa Gwb R1 H1 K1 Call-up command value 1 Call-up command value 2 Call-up command value 3 Call-up command value 4 Relay call-up voltage (+24 V) Measurement null (M0) is increased by Differential input Call-up "Switch-over auxiliary voltage" 9 V as compared to the operating voltage! Positive command value (0 V to 10 or 12 mA to 20 mA) controls solenoid "B". Negative command value (–10 V to 0 or 4 mA to 12 mA) controls solenoid "A". 8/10 Bosch Rexroth AG Hydraulics Additional information RE 30110-Z/10.12

Block diagram / pinout VT-VSPA2-50-1X/T1 Solenoid "A" Solenoid "B" B + U 0 V Operating voltage "Ready for operation" X1 2c 26a 30a 32a 24a 22a 28a 32c F = On front plate i i 8 8 u u F 8 H12 PI PI 7 7 F B I Ba (R7) Bb (R8) 2200 µF " " F A B w Command values Differential input Summing device Ramp generator Step function PI current controller Output stage with clock generator Power supply Monitoring Cable break monitoring (only with 4 to 20 mA) at "I at "I A B I I 2,5 AT 2,5 å 6 F 1 2 3; 6 4 5 7 8 9 10 11 A I 10 9 = 5 11 10 =1 =1 Current command value at "w" 0 to +6 V for solenoid "A" 0 to –6 V for solenoid "B" Actual current value Actual current value F F F F F H4 H2 H1 H3 t 4 K5 K6 J5, J6 K5 å 3 Zw (R6) Zero point command value Bias current solenoid "A" Bias current solenoid "B" Ramp time K4 + K6 K4 K3 1 F 2 R4 u Zw (R6) Ba (R7) Bb (R8) t K3 F K2 u/i 1 J1 J4 R3 F K2 F K1 H11 R2 B K1 F J7 + U R1 8a 6c 4c 6a 8c 20c 14c 4a 2a 30c 18c 18a 20a 16a 16c 14a 12c 12a 10a 10c 28c 26c X1 ) M0 B 9 V + 9 V Ramp external LED display of the command value call-ups Call-up relay Command values Command value 6 J7: Release internal Auxiliary voltage ±9 V H4 K6 R4 Release external (+U Command value 5 ±6 V Command value 4 ±9 V Command value 3 ±9 V Command value 2 ±9 V Command value 1 ±9 V to to to Reference potential/GND Call-up "Ramp off" Command value after ramp H1 K1 R1 Call-up command value 1 Call-up command value 2 Call-up command value 3 Call-up command value 4 Relay call-up voltage (+24 V) Differential input Measurement null (M0) is increased by Call-up "Switch-over auxiliary voltage" 9 V as compared to the operating voltage! Positive command value (0 V to 10 or 12 mA to 20 mA) controls solenoid "B". Negative command value (–10 V to 0 or 4 mA to 12 mA) controls solenoid "A". RE 30110-Z/10.12 Additional information Hydraulics Bosch Rexroth AG 9/10

Block diagram / pinout VT-VSPA2-50-1X/T5 Solenoid "A" Solenoid "B" B "Ready for operation" Operating voltage + U 0 V X1 2c 26a 30a 32a 32c 24a 22a 28a F = On front plate i i 8 8 u u F 8 H12 PI PI 7 7 F B I Ba (R7) Bb (R8) 2200 µF " " A B F w Command values Differential input Summing device Ramp generator Step function PI current controller Output stage with clock generator Power supply Monitoring Cable break monitoring (only with 4 to 20 mA) at "I at "I A B I I 2,5 AT 2,5 å 6 F 1 2 3; 6 4 5 7 8 9 10 11 A I 10 9 = 5 Current command value at "w" 0 to +6 V for solenoid "A" 0 to –6 V for solenoid "B" Actual current value Actual current value 11 10 =1 =1 F F F F H4 H2 H1 H3 4 K5 K6 J5, J6 F t4 K4.2 K5 å F 3 Ramp times Zero point command value Bias current solenoid "A" Bias current solenoid "B" Zw (R6) t3 K3.2 K4 F t5 t2 + K2.2 to F K6 K4 K3 Zw (R6) Ba (R7) Bb (R8) t1 1 F 2 t1 K1.2 R4 u F K3 F K2 t5 u/i 1 J1 J4 R3 F K2 F K1 H11 R2 B K1 F J7 + U R1 8a 6c 4c 6a 14c 8c 20c 4a 2a 30c 18c 18a 20a 14a 16a 16c 12c 12a 10a 10c 28c 26c X1 ) B M0 9 V + 9 V LED display of the command value call-ups Call-up relay Command values Ramp external Command value 6 J7: Release internal H4 K6 R4 Auxiliary voltage ±9 V to to to Release external (+U Command value 5 ±6 V Command value 4 ±9 V Command value 3 ±9 V Command value 2 ±9 V Command value 1 ±9 V Reference potential/GND H1 K1 R1 Call-up "Ramp off" Command value after ramp Call-up command value 1 Call-up command value 2 Call-up command value 3 Call-up command value 4 Relay call-up voltage (+24 V) Differential input Measurement null (M0) is increased by Call-up "Switch-over auxiliary voltage" 9 V as compared to the operating voltage! Positive command value (0 V to 10 or 12 mA to 20 mA) controls solenoid "B". Negative command value (–10 V to 0 or 4 mA to 12 mA) controls solenoid "A". 10/10 Bosch Rexroth AG Hydraulics Additional information RE 30110-Z/10.12

Commissioning

You must imperatively observe the additional information in the operating instructions RE 30110-B before commissioning the amplifier card.

Step 1 Set the relevant jumper according to table 1.

Step 2 Set the clock frequency. Use a digital multimeter suitable for frequency measurements in order to do so. Connect the digital multimeter with the measuring sockets "I" and "M0" and using the potentiometer f, set the frequency according to table 1.

Step 3: Set the step level.

Step 3.1: At the differential amplifier input, apply +0.1 V at pin b14 and connect pin b16 with 0 V. Using the S+ potentiometer, set the step level according to table 1.

Step 3.2: Apply –0.1 V at pin b14 and connect pin b16 with 0 V. Using the S– potentiometer, set the step level according to table 1.

Step 4: Set the maximum current.

Step 4.1: Apply +10 V at pin b14 and connect pin b16 with 0 V. Using the Gw+ potentiometer, set the maximum current according to table 1.

Step 4.1: Apply –10 V at pin b14 and connect pin b16 with 0 V. Using the Gsw– potentiometer, set the maximum current according to table 1.

Bosch Rexroth AG © This document, as well as the data, specifications and other informa- Hydraulics tion set forth in it, are the exclusive property of Bosch Rexroth AG. It Zum Eisengießer 1 may not be reproduced or given to third parties without its consent. 97816 Lohr am Main, Germany The data specified above only serve to describe the product. No state- Phone +49 (0) 93 52 / 18-0 ments concerning a certain condition or suitability for a certain applica- Fax +49 (0) 93 52 / 18-23 58 tion can be derived from our information. The information given does not [email protected] release the user from the obligation of own judgment and verification. It www.boschrexroth.de must be remembered that our products are subject to a natural process of wear and aging. RE 30110-Z/10.12 Additional information Hydraulics Bosch Rexroth AG 11/10

Notes

Bosch Rexroth AG © This document, as well as the data, specifications and other informa- Hydraulics tion set forth in it, are the exclusive property of Bosch Rexroth AG. It Zum Eisengießer 1 may not be reproduced or given to third parties without its consent. 97816 Lohr am Main, Germany The data specified above only serve to describe the product. No state- Phone +49 (0) 93 52 / 18-0 ments concerning a certain condition or suitability for a certain applica- Fax +49 (0) 93 52 / 18-23 58 tion can be derived from our information. The information given does not [email protected] release the user from the obligation of own judgment and verification. It www.boschrexroth.de must be remembered that our products are subject to a natural process of wear and aging. 12/10 Bosch Rexroth AG Hydraulics Additional information RE 30110-Z/10.12

Notes

Bosch Rexroth AG © This document, as well as the data, specifications and other informa- Hydraulics tion set forth in it, are the exclusive property of Bosch Rexroth AG. It Zum Eisengießer 1 may not be reproduced or given to third parties without its consent. 97816 Lohr am Main, Germany The data specified above only serve to describe the product. No state- Phone +49 (0) 93 52 / 18-0 ments concerning a certain condition or suitability for a certain applica- Fax +49 (0) 93 52 / 18-23 58 tion can be derived from our information. The information given does not [email protected] release the user from the obligation of own judgment and verification. It www.boschrexroth.de must be remembered that our products are subject to a natural process of wear and aging.