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Bosch REXROTH VT-MRPA1-2X Owner's Manual

Bosch REXROTH VT-MRPA1-2X Owner's Manual

Valve amplifier for proportional directional valve type 2wfc

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Table of Contents
Valve amplifier for proportional
directional valve type 2WFC
VT-MRPA1
Component series 2X
HAD_8144
Operating instructions
RE 30220-B/05.2019
Replaces: 09.2019
English

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Summary of Contents for Bosch REXROTH VT-MRPA1-2X

  • Page 1 Valve amplifier for proportional directional valve type 2WFC VT-MRPA1 Component series 2X Operating instructions Replaces: 09.2019 RE 30220-B/05.2019 English HAD_8144...
  • Page 2 Our products are subject to a natural process of wear and aging. © Bosch Rexroth AG 2016. All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of application for industrial property rights.
  • Page 3: Table Of Contents

    8.2.2 Test jacks Selecting the valve sizes Menu 8.4.1 Menu structure Parameter setting 8.5.1 Explanation of menu level “Standard mode“ 8.5.2 Explanation of menu level “Expert mode“ Restoring the VT-MRPA1-2X to factory settings Operation RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG...
  • Page 4 12.1 Environmental protection 12.2 Return to Bosch Rexroth AG 12.3 Packaging 12.4 Materials used 12.5 Recycling Extension and modification Troubleshooting 14.1 How to proceed for troubleshooting Technical data Annex 16.1 List of addresses Index Bosch Rexroth AG, Valve amplifier VT-MRPA1, RE 30220-B/05.2019...
  • Page 5: About This Documentation

    About this documentation 5/19 1 About this documentation 1.1 Validity of the documentation This documentation is valid for valve amplifier VT-MRPA1-2X/.../WFC/... from Bosch Rexroth. This documentation is intended for fitters, operators, service technicians, system operators and machine manufacturers. This documentation contains important information on the safe and appropriate installation, transport, commissioning, maintenance, operation, use, and removal of the product.
  • Page 6: Symbols

    1.3.3 Designations The following designations are used in this documentation: Tabelle 4: Designations Term Meaning Electronics Command value cards, amplifiers, and controls manufactured by Bosch Rexroth 1.3.4 Abbreviations The following abbreviations are used in this documentation: Tabelle 5: Abbreviations Abbreviation...
  • Page 7: Safety Instructions

    Any use other than described in the section “Intended use” is considered as improper and is therefore not permitted. Bosch Rexroth AG does not assume any liability for damage caused by improper use. The user assumes all risks involved with improper use.
  • Page 8: Qualification Of Personnel

    • Only use original Bosch Rexroth accessories and spare parts in order to prevent any hazard to persons due to unsuitable spare parts. • Comply with the technical data and environmental conditions specified in the product documentation.
  • Page 9: Product-Specific Safety Instructions

    Only connect voltages and power circuits that feature safe isolation from dangerous voltages. Safe isolation can be achieved with isolation transformers, safe optocouplers or mains-free battery operation. ▶ Always connect all cables to the provided connections. Avoid open cables or contacts. RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG...
  • Page 10: Personal Protective Equipment

    Generally rule out any deposits according to protection class IP. 2.7 Personal protective equipment Check determined personal protective equipment for completeness and protective effect and wear it (observe customer regulations and list of personal protective equipment). Bosch Rexroth AG, Valve amplifier VT-MRPA1, RE 30220-B/05.2019...
  • Page 11: General Information On Damage To Property And¬†Damage To The Product

    NOTICE High voltage! The electronics may be damaged. ▶ Wire electronics from Bosch Rexroth only when these are disconnected from the power supply. Wrong cables! Power loss, scorching of cable! Risk of damage to the product! ▶...
  • Page 12: Scope Of Delivery

    RE 30220 of your Bosch Rexroth product: ▶ Check the scope of delivery for completeness and possible transport damage. In case of complaints, please contact Bosch Rexroth AG, see chapter 16.1 “List of addresses“ on page 33. 5 About this product You can find information on the product and its performance in the data sheet of your electronics.
  • Page 13: Transport And Storage

    RE 30220. 6.1 Storing electronic products Proceed as follows in order to prepare electronics from Bosch Rexroth for storage and further use: ▶ Whenever possible, use the original packaging for storage.
  • Page 14: Required Tools

    VT-MRPA1-2X with hydraulic fluids, acids, bases, corrosive agents, salts, metal vapors, solvents, etc. 7.3.1 Place of installation Electronics from Bosch Rexroth are intended for installation in control cabinets. Outdoor installation is not permitted. 7.4 Installing und connecting the VT-MRPA1-2X The dimensions of valve amplifier VT-MRPA1-2X are given in data sheet RE 30220.
  • Page 15: Connecting The Supply Voltage

    Inspect all cables for intactness. Connect the signal and solenoid cables according to your circuit diagram to the relevant terminals of the VT-MRPA1-2X. Connect the supply voltage and check the presence of voltage by switching on. RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG...
  • Page 16: Shielding

    Cables should only have the number of wires actually required. If this is impossible, connect the wires with each other and connect them to ground on one side in the control cabinet. Bosch Rexroth AG, Valve amplifier VT-MRPA1, RE 30220-B/05.2019...
  • Page 17: Connecting The Individual Contacts

    Flexible with wire end ferrule 0.25 mm² 2.5 mm² The length to be stripped is 10 mm each. 7.5.2 Connecting the individual contacts With wire end ferrule Solid wire Flexible wire Abb. 3: “PUSH-IN“ contact RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG...
  • Page 18: Suppressing Interference Of The System

    Damage to the device caused by incorrect handling is not covered by the warranty! ▶ Observe the protection class, the voltage supply and the environmental conditions according to data sheet RE 30220. For commissioning we recommend using a multimeter. Bosch Rexroth AG, Valve amplifier VT-MRPA1, RE 30220-B/05.2019...
  • Page 19: Block Circuit Diagram Of Vt-Mrpa1-2X

    7 Command value attenuator 8 Position controller 9 Output stage 10 Enable input 11 Switching logic/error detection 12 Ready-for-operation output 13 Actual value zero point trimming 14 Sensitivity calibration of act. value position RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG...
  • Page 20: Operating And Display Elements

    Description of LED Enable input indicator lamps Ramp Command value zero point Command value attenuator Actual value Ready for operation 1st quadrant ([positive] command value, increasing) 2nd quadrant ([positive] command value, falling) Bosch Rexroth AG, Valve amplifier VT-MRPA1, RE 30220-B/05.2019...
  • Page 21: Test Jacks

    ● ● ● ● ● ● 2WFC50...-1X When the rotary switch is set to position “0“, the LEDs signal the status shown on the left. The yellow LEDs rotate clockwise in pairs. RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG...
  • Page 22 → The ready LED is lit green. In both cases, check the actually connected valve and its size! Whenever a valve size is changed, all changeable parameters are reset to factory settings! Bosch Rexroth AG, Valve amplifier VT-MRPA1, RE 30220-B/05.2019...
  • Page 23: Menu

    The menu structure and operation of the “Expert Mode” corresponds to that of the “Standard Mode“. The parameters in the “Expert Mode“ can be found in chapter 8.5.2 „Explanation of menu level “Expert mode““. RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG...
  • Page 24: Parameter Setting

    To exit the “Expert Mode“, press [Set] (> 1 s). The device is again in the operation mode. Completing parameter ▶ Press [Set] (> 1 s). setting The device is again in the operation mode. Bosch Rexroth AG, Valve amplifier VT-MRPA1, RE 30220-B/05.2019...
  • Page 25: Explanation Of Menu Level "Standard Mode

    0/10 mV...1.00 V (1 s/V) ([positive]command value, 1 s...5 s: increasing) 1.0 V...5.0 V (1 s/V) 5 s... 30 s 5.0 V ... 10 V U = 0.2 V/s * t + 4 V RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG...
  • Page 26: Restoring The Vt-Mrpa1-2X To Factory Settings

    The LEDs signal the status shown on the left. After some time, the LEDs switch to the status shown on the left. The module is restored to factory settings. Release [Set]. Restoring to factory settings is completed. Bosch Rexroth AG, Valve amplifier VT-MRPA1, RE 30220-B/05.2019...
  • Page 27: Operation

    [1] For resetting the overload protection circuit the command value has to be briefly withdrawn from the module. In the case of serious errors the module must be replaced. RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG...
  • Page 28: Maintenance And Repair

    Bosch Rexroth electronics may only be replaced as a complete unit. Unauthorized modifications to devices are not permitted for safety reasons! Repairs may only be carried out by Bosch Rexroth AG. For repairs send the device to the service address given in Chapter 16.1.
  • Page 29: Demounting And Replacement

    Loosen the latch from its snapped-in position using a screwdriver. Carefully remove the VT-MRPA1-2X from the DIN rail while the latch is pulled out. Abb. 6: Removing the VT-MRPA1-2X from the DIN rail RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG...
  • Page 30: Preparations For Storage And Further Use

    30/36 Demounting and replacement 11.4 Preparations for storage and further use Proceed as follows in order to prepare electronics from Bosch Rexroth for storage and further use: ▶ Whenever possible, use the original packaging for storage. ▶ Observe the permissible storage temperature range given in data sheet 30220.
  • Page 31: Disposal

    The materials for disposable packaging are mostly cardboard, wood, and expanded polystyrene. They can be recycled without any problems. For ecological reasons, disposable packaging should not be used for returning products to Bosch Rexroth. 12.4 Materials used Electronic components from Bosch Rexroth do not contain any hazardous substances that could be released during intended use.
  • Page 32: Extension And Modification

    Try to get a clear idea of the cause of error. If possible, ask the direct (machine) operator. 15 Technical data You can find the technical data of your device in data sheet RE 30220. Bosch Rexroth AG, Valve amplifier VT-MRPA1, RE 30220-B/05.2019...
  • Page 33: Annex

    Zum Eisengießer 1 97816 Lohr am Main Germany Phone +49 (0) 9352/40 30 20 E-mail my.support@boschrexroth.de The addresses of our sales and service network and sales organizations can be found at www.boschrexroth.com/addresses RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG...
  • Page 34: Index

    Information on damage to property and damage to the product ▶ T Installation 13, 14 Technical data Installation conditions Test jacks Intended use Tools 14, 29 Transport ▶ L Troubleshooting LED indicator lamps List of addresses Bosch Rexroth AG, Valve amplifier VT-MRPA1, RE 30220-B/05.2019...
  • Page 35 Index 35/36 ▶ U – improper – intended ▶ W Wiring RE 30220-B/05.2019, Valve amplifier VT-MRPA1, Bosch Rexroth AG...
  • Page 36 Bosch Rexroth AG Industrial Hydraulics Zum Eisengießer 1 97816 Lohr a. Main Germany Phone +49 (0) 9352/40 30 20 my.support@boschrexroth.de www.boschrexroth.com Subject to revision Printed in Germany RE 30220-B/05.2019...

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