Bosch Rexroth 4WRPD User manual

Operating instructions
RE 29391-B/05.2021
Replaces: 08.2020
English
High-response/proportional
valves with Multi-Ethernet
interface
4WRPD(H)
4WRPQ(H)
4WRPF(H)
4WRLD
4WRLF
4WRLQ
5WRPF10
5WRPQ10

The data specified only serve to describe
the product. If information on the use of the
product is given, it is only to be regarded as
application examples and recommendations.
Catalog specifications do not constitute
assured characteristics. The information given
does not release 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.
© 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 shows an example configuration.
The product supplied may differ from the
solution shown here.
The original operating instructions were
prepared in German.

RE 29391-B/05.2021; 4WRPD(H), 4WRPQ(H), 4WRPF(H), 4WRLD, 4WRLF, 4WRLQ, 5WRPF10, 5WRPQ10, Bosch Rexroth AG
3/48Content
Content
1 About this documentation 5
1.1 Validity of the documentation 5
1.2 Required and supplementary documentation 5
1.3 Representation of information 6
2 Safety instructions 8
2.1 About this chapter 8
2.2 Intended use 8
2.3 Improper use 9
2.4 Qualification of personnel 9
2.5 General safety instructions 10
2.6 Product-specific safety instructions 11
2.7 Safety equipment 14
2.8 Personal protective equipment 23
2.9 Obligations of the machine end-user 23
3 General information on damage to property anddamage to the product 24
4 Scope of delivery 25
5 About this product 26
5.1 Performance description 26
5.2 Product description 26
5.3 Identification of the product 27
6 Transport and storage 30
6.1 Storage of the valve on Multi-Ethernet basis 30
7 Installation 31
7.1 Unpacking 31
7.2 Installation conditions 31
7.3 Required tools 31
7.4 Recommended accessories 31
7.5 Before the installation 32
7.6 Place of installation 32
7.7 Mounting of the valve on Multi-Ethernet basis 32
8 Commissioning 37
8.1 Initial commissioning 37
8.2 Installation requirements 38
9 Operation 38
10 Maintenance and repair 39
10.1 Cleaning and care 39
10.2 Inspection and maintenance 40
10.3 Repair 40
11 Demounting and replacement 41
11.1 Required tools 41
11.2 Preparing demounting 41
11.3 Demounting 41
11.4 Preparations for storage and further use 42
12 Disposal 43
12.1 Environmental protection 43
12.2 Return to Bosch Rexroth AG 43

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12.3 Packaging 43
12.4 Materials used 43
12.5 Recycling 43
13 Extension and modification 44
14 Troubleshooting 44
14.1 How to proceed for troubleshooting 44
14.2 Fault table 45
15 Technical data 45
16 Annex 46
16.1 List of addresses 46
17 Alphabetical index 47

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1 About this documentation
1.1 Validity of the documentation
This documentation applies to the following valves with Multi-Ethernet interface:
• 4WRPD(H) (direct operated high-response valve with Ethernet interface and axis
control function, IAC Multi-Ethernet)
• 4WRLD (pilot-operated high-response valve with Ethernet interface and axis
control function, IAC Multi-Ethernet)
• 4/5 WRPQ... (direct operated high-response valve with Ethernet interface and
integrated electronic pressure compensator, IAC Multi-Ethernet and IFB Multi-
Ethernet)
• 4/5 WRPF... (direct operated high-response valve with Ethernet interface, IAC-
Multi-Ethernet and IFB Multi-Ethernet)
• 4WRLF (pilot-operated high-response valve with Ethernet interface, IFB Multi-
Ethernet)
• 4WRLQ (direct operated high-response valve with Ethernet interface and
integrated electronic pressure compensator, IAC Multi-Ethernet and IFB Multi-
Ethernet)
This documentation is intended for fitters, operators, service technicians and plant
operators.
This documentation contains important information on the safe and proper
mounting, transport, commissioning, operation, use, maintenance, demounting and
simple troubleshooting of the product.
 Read this documentation thoroughly and in particular chapter 2 “Safety
instructions“ and chapter 3 “General information on damage to property
anddamage to the product“, before working with the product.
1.2 Required and supplementary 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. Bosch Rexroth data sheets are available online at
www.boschrexroth.com/mediadirectory
Table 1: Required and supplementary documentation
Title Document
number
Document type
System documentation from the system manufacturer
Directional control valve, direct operated, with integrated digital axis controller (IAC
Multi-Ethernet), type 4WRPDH
29391 Data sheet
Directional control valve, direct operated, with integrated digital axis controller (IAC-
Multi-Ethernet), type 4WRPQ
29133 Data sheet
Directional control valve, direct operated, with integrated fieldbus (IFB Multi-
Ethernet), type 4WRPFH
29395 Data sheet
Directional control valves, direct operated, with electrical position feedback and
integrated fieldbus (IFB Multi-Ethernet), type 4WRPF
29131 Data sheet
Directional control valve, pilot operated, with integrated digital axis controller (IAC
Multi-Ethernet), type 4WRLD
29289 Data sheet

6/48 About this documentation
Bosch Rexroth AG, 4WRPD(H), 4WRPQ(H), 4WRPF(H), 4WRLD, 4WRLF, 4WRLQ, 5WRPF10, 5WRPQ10; RE 29391-B/05.2021
Title Document
number
Document type
Directional control valve, pilot operated, with integrated fieldbus (IFB Multi-Ethernet),
type 4WRLF
29293 Data sheet
Rexroth HydraulicDrive HDS-16, HDx17 to HDx-20 Parameters 30330-PA Reference book
Rexroth HydraulicDrive HDS-16, HDx17 to HDx-20 Diagnostic Messages 30330-WA Reference book
Rexroth HydraulicDrive HDx-20 Functions 30338-FK Application manual
Declaration of conformity of the complete valves on Multi-Ethernet basis Available from Bosch
Rexroth on request
General product information on hydraulic products 07008
Hydraulic valves for industrial applications 07600-B Operating instructions
Reliability characteristics MTTFDregarding functional safety according to EN ISO
13849
08012 Data sheet
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 the valve described.
For a better understanding, they are explained in the following sections.
1.3.1 Safety instructions
In this documentation, safety instructions are included in chapter2.6 “Product-
specific safety instructions“ and in chapter3 “General information on damage
to property anddamage to the product“ and whenever sequences of actions or
instructions are explained which bear the risk of personal injury or damage to
property. The described hazard avoidance measures must always be observed.
Safety instructions are structured as follows:
SIGNAL WORD
Type and source of danger!
Consequences in case of non-compliance
 Hazard avoidance measures
 <Enumeration>
•Warning symbol: draws attention to a hazard
•Signal word: identifies the degree of hazard
•Type and source of danger: Specifies the type and source of danger
•Consequences: describes the consequences in case of non-observance
•Precaution: specifies how the hazardous situation can be prevented

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Table 2: Hazard Classifications according to ANSI Z535.6-2011
Warning sign, signal word Meaning
DANGER Indicates a hazardous situation which, if not avoided, will
certainly result in death or serious injury.
WARNING Indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION Indicates a hazardous situation which, if not avoided, could
result in minor or moderate injury.
NOTICE Damage to property: The product or the environment could
be damaged.
1.3.2 Symbols
The following symbols indicate notices which are not safety-relevant but increase
the comprehensibility of the documentation.
Table 3: Meaning of the symbols
Symbol Meaning
If this information is disregarded, the product cannot be used or operated
in an optimum manner.
 Individual, independent action
1.
2.
3.
Numbered instruction:
The numbers indicate that the actions must be carried out one after the
other.
1.3.3 Designations
The following terms are used in this documentation:
Table 4: Designations
Designation Meaning
IAC Multi-Ethernet Integrated axis controller based on a high-response valve
IndraWorks Operating software
RE xxxxx Rexroth document in English language
Sercos Interface for motion control applications
1.3.4 Abbreviations
The following abbreviations are used in this documentation:
Table 5: Abbreviations
Abbreviation Meaning
CCF Common Cause Failure
DCavg Average Diagnostic Coverage according to EN ISO 13849-1
FC Frequency converter
IAC Integrated Axis Controller
IFB Integrated Field Bus
I/O Inputs/outputs
MTTFdMean time to dangerous failure
PC Personal Computer
PELV Protective Extra Low Voltage
PFH Probability of dangerous failure per hour

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Bosch Rexroth AG, 4WRPD(H), 4WRPQ(H), 4WRPF(H), 4WRLD, 4WRLF, 4WRLQ, 5WRPF10, 5WRPQ10; RE 29391-B/05.2021
Abbreviation Meaning
PL Performance Level according to EN ISO 13849-1
SELV Separated extra-low voltage
PLC Programmable Logic Control
2 Safety instructions
2.1 About this chapter
The valves on Multi-Ethernet basis described below have been manufactured
according to good engineering practice. However, there is still a risk of personal
injury and/or 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 valve on to third
parties.
2.2 Intended use
A valve on Multi-Ethernet basis is a valve with electrical control for use in two-
channel safety applications (cat. 3, PL d and cat. 4, PL e according to EN 13849-1)
as switch-off element for one channel.
Depending on the application and the requirements of work equipment-related
standards according to EN 13849-1, the user must provide appropriate monitoring/
plausibility checks which comply with the required diagnostic coverage DCavg using
a higher-level control.
The valve is exclusively intended for integration into a machine or system or to
be assembled with other components to form a machine or system. The product
may be commissioned only if it is integrated in the machine/system for which it is
designed.
The operating conditions and the performance limits specified in the technical data
sheet must be observed.
The valve on Multi-Ethernet basis may be used as follows:
• For open and closed-loop (alternating) control of position, pressure, force,
velocity, pressure differential and flow
For operation of the device, a higher-level control logic with appropriate I/O
components is additionally required, which, in conjunction with the valve on Multi-
Ethernet basis, holistically controls the motion sequence of the machine and also
monitors it in terms of safety.

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The valve must not be used in potentially explosive atmospheres. The product is
intended exclusively for professional use and not for private usage.
Intended use includes having read and understood this documentation completely,
especially chapter 2 “Safety instructions“.
2.3 Improper use
Any use deviating from the intended use is improper and thus not admissible.
Improper use voids any warranty claims. It is also regarded as improper use if
the valve is operated outside the indicated performance limits and operating
conditions, especially the prescribed ambient conditions.
Bosch Rexroth AG does not assume any liability for damage caused by improper
use. The user assumes all risks involved with improper use.
2.4 Qualification of personnel
The activities described in this documentation require basic knowledge of
electrical installation, control technology, programming and hydraulics as well
as knowledge of the appropriate technical terms. In order to ensure safe use,
these activities may only be carried out by an expert in the respective field or an
instructed person under the direction and supervision of an expert.
Experts are those who are able to 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 requirements 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 circuit diagrams,
• in particular, completely understanding the correlations regarding safety
equipment and
• knowledge of the function and structure of hydraulic components.
The operation of the digital IAC Multi-Ethernet axis control requires that the
operator is familiar with the IndraWorks Ds PC program. For a description on
handling the program as well as first steps for operation, please refer to
https://www.boschrexroth.com.
We recommend that users attend a product-specific training by Bosch Rexroth.
Bosch Rexroth offers training courses in specific fields. You can find an overview
of training contents on the Internet at: https://www.boschrexroth.com

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2.5 General safety instructions
• Observe the valid regulations on accident prevention and environmental
protection.
• Observe the safety regulations and provisions of the country in which the product
is used/applied.
• Exclusively use Rexroth products in technically perfect condition.
• Observe all notices on the product.
• Persons who install, commission, operate, demount or maintain Rexroth products
must not consume any alcohol, drugs or pharmaceuticals that may affect their
ability to respond.
• Only use genuine Rexroth accessories and spare parts in order to exclude any
hazard to persons due to unsuitable spare parts.
• Comply with the technical data and ambient conditions specified in the product
documentation.
• The installation or use of inappropriate products in safety-relevant applications
could result in unintended operating states in the application which in turn could
cause personal injuries and/or damage to property. Therefore, only use a product
for safety-relevant applications if this use is expressly specified and permitted
in the documentation of the product, or if the safe suitability of the product in
the application is confirmed by a separate conformity assessment procedure,
e.g.in explosion protection zones or in safety-related parts of control systems
(functional safety).
• 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.
• Please observe the safety-relevant information and risk specifications in the
operating instructions of the manufacturer of the connected hydraulic system
before commissioning the control with a hydraulic system.
• Please observe the general installation and safety regulations when working on
electrical systems.
• The information given in the product documentation with regard to the
use of the supplied components represents only application examples and
recommendations. The machine manufacturer and system installer must check
the suitability of the supplied components and the information given in this
documentation with regard to their use self-dependently for his individual
application and adjust it to the safety regulations and standards valid for his
application, and carry out the required measures, changes and amendments.
• Technical data as well as connection and installation conditions are available in
the product documentation and must be imperatively observed.
• In case of faults impairing the safety and changes in the operating behavior, shut
down the valve immediately and report the faults to the responsible personnel.
• Generally, you may not modify or convert the product, except for the pilot oil
supply of the pilot-operated valves 4WRLD, 4WRLF and 4WRLQ.