Bosch Rexroth RA 10 Series Instruction Manual

Bosch Rexroth RA 10 Series Instruction Manual

Analog amplifier

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Instruction manual
Analog amplifier
RA
RE 95230-B/2021-12-01, replaces: 08.2015, EN

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Table of Contents
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Summary of Contents for Bosch Rexroth RA 10 Series

  • Page 1 Instruction manual Analog amplifier RE 95230-B/2021-12-01, replaces: 08.2015, EN...
  • Page 2 © Bosch Rexroth AG 2021. All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. The data specified within only serves to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from...
  • Page 3: Table Of Contents

    7.5.3 Variants with parallel operation of the output stages ......... 37 7.5.4 Information on wiring and circuitry ............39 7.5.5 Electrically connecting the analog amplifier ..........40 Commissioning ��������������������������������������������������������������������������������������� 41 Parameterization ..................41 Factory settings ..................42 Operation ����������������������������������������������������������������������������������������������� 43 RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 4 Cleaning and care ..................43 10.2 Inspection and maintenance ..............43 10.3 Repair ......................43 Removal and replacement ���������������������������������������������������������������������� 44 Disposal ������������������������������������������������������������������������������������������������� 44 Extension and conversion ����������������������������������������������������������������������� 44 Troubleshooting ������������������������������������������������������������������������������������� 45 Technical data ���������������������������������������������������������������������������������������� 46 Alphabetical index ��������������������������������������������������������������������������������� 47 Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 5: About This Documentation

    Always follow the measures for danger prevention associated with the use of this product. RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 6: Symbols

    Symbol Meaning If this information is disregarded, the product cannot be used and/or operated to its full extent. ▶ Single, independent action 1� Numbered instruction: The numbers indicate that the actions must be completed in order. 2� 3� Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 7: Designations

    American National Standards Institute is an organization that coordinates the development of voluntary standards in the United States Deutsches Institut für Normung (German Institute for Standardization) Electromagnetic compatibility European Norm (standard) International Organization for Standardization Rexroth document in the English language RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 8: Safety Instructions

    2�3 Improper use Any use other than that described as intended use is considered improper. Bosch Rexroth AG is not liable for damage resulting from improper use. The user is solely responsible for any risks arising from improper use. The following foreseeable forms of faulty usage are also considered improper (this list is not exhaustive): •...
  • Page 9: Personnel Qualifications

    Bosch Rexroth offers you measures supporting training in specific areas. You can find an overview of the training contents on the Internet at: www.boschrexroth.com/training.
  • Page 10 • The analog amplifier must not be wetted by hydraulic fluids, acids or alkalis. • The suggested circuits do not imply any technical liability for the system on the part of Rexroth. Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 11: Product-Specific Safety Instructions

    2�7 Personal protective equipment The personal protective equipment is the responsibility of the user of the product. Observe the safety regulations in your country. All pieces of personal protective equipment must be intact. RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 12: General Instructions On Property Damage And Product Damage

    Protect the machine/system against reactivation. The warranty exclusively applies to the delivered configuration. The warranty will be voided if the product is incorrectly installed, commissioned or operated, or if it is used or handled improperly. Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 13: Scope Of Delivery

    Scope of delivery | Analog amplifier RA 13/48 4 Scope of delivery The scope of delivery exclusively includes the analog amplifier RA. Fig� 1: Analog amplifier RA RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 14: About This Product

    • Externally controllable switching output • Error output • Separately adjustable ramp times for each solenoid • Overload protection, overvoltage protection, conditional short circuit protection • Separately adjustable currents I (offset) and I (gradient) for every solenoid • Externally adjustable PWM frequency Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 15: Operating Modes

    I are both set to the highest value! Therefore, a proportional solenoid could only react in a very small control range and achieve almost maximum modulation with very low potentiometer setting. RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 16: Assignment And Function Of The Leds And Setting Potentiometer

    The control range is between 100 ms and 10 s at maximum change from to I For the potentiometers, the following applies in general: Clockwise rotation means an increase in the setting (longer ramp time or higher current). Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 17: Identification Of Ra

    About this product | Analog amplifier RA 17/48 5�5 Identification of RA The product is to be identified by means of the material number (1) on the analog amplifier. Fig� 5: Material number RA RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 18: Transport And Storage

    6 Transport and storage Check the analog amplifier for transport damage. If there are obvious signs of damage, please inform the transport company and Bosch Rexroth immediately. If the analog amplifier is dropped, continued use is not permissible because unseen damage may affect its reliability.
  • Page 19: Installation

    ▶ The control unit will heat up beyond normal ambient temperature during operation. To avoid danger caused by high temperatures, it should be protected against contact. ▶ Standing and permanently running water is not permissible in the area of the seal. RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 20: Installation Position

    You can find their contact information at https://addresses.boschrexroth.com 7�4�2 Mounting The RA analog amplifier has mounting lugs for assembly. Use M6 screws (no countersunk head). Washers are absolutely necessary. Tighten the screws with a torque of 4 Nm. Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 21: Connector Assembly

    Screws for the clamping collar 1 928 491 154 Bosch Sleeve, angled, 18 mm 1 928 300 284 Bosch Wire tie for sleeve 1 928 401 280 Bosch Junior Power Timer contact 927775-3 TE Connectivity Alternatively: Bosch contact 1 284 477 176 RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 22 1� Pull the wires and/or lines into the insulation hose. – Let the wires protrude at least 12 cm over the insulation hose end. – In case of multi-wire lines, insulate the insulation of the outer sheath approx. 0.5 cm after the insulation hose end. Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 23 – To make it easier to push the sleeve over the insulation hose, apply talcum (or a suitable medium) to the insulation hose and the inside of the sleeve in the area of the cable entry. approx. 15 cm Fig� 11: Sleeve and handle shell with inserted insulation hose RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 24 (either on one side with contact 1 to 13, then 14 to 25, or alternately, contact 1, 14, 2, 15, etc.). – The wires must lead away from the crimping contacts in a light bend. Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 25 – The catch of the contact must be engaged in the detent locking of the contact carrier. Verify this by pulling on the line (tensile test). – Immediately consider internal bridges and - if necessary - wiring elements (resistance) in the connector and install them according to the following instructions. RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 26 Resistance Depending on the connection variant, a resistor must still be installed in the connector. To ensure its mechanical protection, the following installation is suggested. Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 27 Lead the wires of the bridges and the resistance between the contact rows, if possible Bend resistance towards cable entry opening Fig� 16: Positioning bridges and resistors RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 28 6� Screw on the clamping collar with the corresponding screws. – Tightening torque 0.9 – 1.1 Nm – If the clamping of the insulation hose (e.g. with few wires) is too low, adhesive tape has to be applied in the terminal area. Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 29 10� Insert the seal for the contact carrier. – The seal must be inserted with the concave side to the contact carrier (inside) (straight surface must be visible from the outside). – The seal must fully lie between handle shell and contact carrier. RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 30 Bead at handle shell Introduction of the sleeve must not be folded up at insulation hose Wire tie (lateral closing) Fig� 22: Fixing the sleeve – The lock of the wire tie must lie laterally at the recess of the sleeve. Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 31: Pin Assignment

    (pin 15) to pin 24 and a brake is controlled with the current of pin 7. GND signal Signal ground (potentiometer and sensor supply for differential input 1) GND signal Signal ground (potentiometer and sensor supply for differential input 2) RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 32: Pin Assignment (Parallel Operation)

    4, 10: non-inverting input The voltage difference is used to generate command values. In order to obtain a maximum command value, a voltage difference of 4 V has to be applied at the inputs of the differential amplifier. Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 33: Pin Assignment (Toggling Operation)

    The voltage difference is used to generate command values. In order to obtain a maximum command value, a voltage difference of 4 V must in each case be applied at the inputs of the differential amplifiers. The special connection ("opposite polarity") of the differential amplifiers results in the locked control. RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 34: Examples Of Connection Variants

    8.4 V (23) 8.4V Channel 1 Center connection at 4.0 V Setpoint Output stage (10) (22) Input signal processing (11) 4.0V 8.4 ... 4.0 ... 8.4 V (12) Solenoid 1 Fig� 24: Connection variant 2 Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 35 Input signal and working 5.1 kΩ Setpoint ISETPOINT Output stage (10) range (22) 0 ... 20 mA processing (11) 4.0V (12) Solenoid 1 ISETPOINT Fig� 27: Connection variant 5 Monitoring of cable break is not possible with this variant. RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 36: Variants With Independent Circuitry

    Input signal 4.0 ... 8.4 V. processing 4.0V Solenoid 2 Parallel operation U Batt Alternative circuit proposal 8.4V Advantage: fewer lines 4.0V 4.0V Fig� 29: Connection variant 7 Monitoring of cable break is not possible with this variant. Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 37: Variants With Parallel Operation Of The Output Stages

    Output stage Potentiometer between processing 4.0V 8.4 V and 4.0 V connected. Solenoid 1 Input signal 8.4V Channel 2 4.0 ... 8.4 V. Output stage Setpoint processing 4.0V Solenoid 2 Parallel operation U Batt Fig� 31: Connection variant 9 RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 38 Fig� 32: Connection variant 10 For this connection type, cable break monitoring is implemented by the internal current measurement at pin 16. In case of an error, the error output is set. The PWM outputs are not always switched off! Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 39: Information On Wiring And Circuitry

    • The power outputs are not suitable for the operation of LEDs. • The outputs may not be externally connected to battery. • Proportional solenoids which are operated in a current-controlled way must not be connected to spark-suppression diodes. RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 40: Electrically Connecting The Analog Amplifier

    2� Make sure that the mating connector of the wire harness is in de-energized condition. 3� Connect the mating connector of the wire harness to the analog amplifier connector until it engages noticeably and observe the correct plug-in position. Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 41: Commissioning

    (<100%). is reduced. Vice versa, the maximum modulation is already achieved before 100% command value presetting. The correct setting exists if the drive directly follows when the setpoint potentiometer is reduced from 100%. RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 42: Factory Settings

    8�2 Factory settings The default factory settings are as follows: • 3 seconds ramp (up/down) at all four ramps • 200 ... 600 mA (pin 18 not wired) • 400 ... 1200 mA (pin 18 connected to +U Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 43: Operation

    ▶ Only use original spare parts from Rexroth, otherwise the functional reliability cannot be guaranteed, and the warranty will be voided. ▶ Spare parts can be found online at www.boschrexroth.com/eshop Address all questions regarding repair to your responsible Bosch Rexroth service. RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 44: Removal And Replacement

    13 Extension and conversion You must not convert the analog amplifier. The Bosch Rexroth warranty only applies to the configuration as delivered. The warranty will be voided if the unit is modified or extended. Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 45: Troubleshooting

    2 kΩ ... 5 kΩ is connected. – There is a difference between internal and external voltages (e.g. short circuit or incorrect wiring of the potentiometer). Check the wiring harness. – The voltage at one of the output stages is below approx. 9 V. RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 46: Technical Data

    The permissible technical data of the analog amplifier can be found in the online product catalog in the data sheet: Type Data sheet Link online product catalog QR code www.boschrexroth.com/p-RA2-1 95230 For further information on the display, please refer to www.boschrexroth.com/mobile-electronics Bosch Rexroth AG, RE 95230-B/2021-12-01...
  • Page 47: Alphabetical Index

    Technical data  ...... 46 Preparation  ...... 20 Transport  ........ 18 Installation conditions  .... 19 Troubleshooting  ...... 46 Intended use  ........  8 Unpacking ........ 19 Maintenance  .......  43 Warranty  ........ 12 Operation  ........ 43 Product description  .... 14 Property damage  ...... 12 RE 95230-B/2021-12-01, Bosch Rexroth AG...
  • Page 48 Bosch Rexroth AG Robert-Bosch-Straße 2 71701 Schwieberdingen Germany Service phone +49 (0) 9352 40 50 60 info.bodas@boschrexroth.de www.boschrexroth.com Your local contact person can be found at: https://addresses.boschrexroth.com Subject to change RE 95230-B/2021-12-01...

This manual is also suitable for:

Rexroth ra2-1/10

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