Bosch rexroth VT-SSV-1 User manual

Operating instructions
RE 30262-B Edition: 05.2022
Plug-in switching amplifier
Type VT-SSV-1, component series 2X

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 delivered may differ from the
image on the cover.
Translation of the original operating
instructions. The original operating
instructions were prepared in German
language.

RE 30262-B, Edition 05.2022, Bosch Rexroth AG
Content | Plug-in switching amplifier VT-SSV 3/24
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 ....................................................................5
1.3.1 Safety instructions ......................................................................................5
1.3.2 Symbols ......................................................................................................6
1.3.3 Designations ...............................................................................................6
1.3.4 Abbreviations ..............................................................................................6
2 Safety instructions .................................................................................. 7
2.1 About 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- and technology-related safety instructions....................................9
2.7 Personal protective equipment..................................................................10
2.8 Obligations of the machine end-user.........................................................10
3 General notes on damage to property and damage to the product ......... 11
4 Scope of delivery................................................................................... 12
5 About this product................................................................................. 12
5.1 Identification of the product .....................................................................12
6 Transport and storage............................................................................ 13
6.1 Storing the VT-SSV-1-2X ............................................................................13
7 Installation............................................................................................ 14
7.1 Required tools...........................................................................................14
7.2 Installation conditions...............................................................................14
7.2.1 Place of installation ..................................................................................14
7.3 Installing und connecting the VT-SSV-1-2X................................................15
7.4 Connecting the supply voltage ..................................................................15
7.4.1 Suppressing interference of the system ....................................................15
8 Commissioning ...................................................................................... 16
8.1 Block circuit diagram of the VT-SSV-1-2X ..................................................16
9 Operation .............................................................................................. 16
10 Maintenance and repair......................................................................... 17
10.1 Cleaning and care .....................................................................................17
10.2 Inspection and maintenance .....................................................................17
10.3 Repair .......................................................................................................17
11 Demounting and replacement................................................................ 18
11.1 Required tools...........................................................................................18
11.2 Preparing demounting...............................................................................18
11.3 Demounting...............................................................................................18
11.4 Preparing the components for storage or further use................................18
12 Disposal ................................................................................................ 19
12.1 Environmental protection ..........................................................................19
12.2 Return to Bosch Rexroth AG......................................................................19
12.3 Packaging..................................................................................................19
12.4 Materials used...........................................................................................19
12.5 Recycling...................................................................................................19
13 Extension and modification ................................................................... 20

4/24 Plug-in switching amplifier VT-SSV | Content
Bosch Rexroth AG, Edition 05.2022, RE 30262-B
14 Troubleshooting .................................................................................... 20
14.1 How to proceed for troubleshooting..........................................................20
15 Technical data ....................................................................................... 20
16 Annex .................................................................................................... 21
16.1 List of addresses.......................................................................................21
17 Alphabetical index ................................................................................ 22

RE 30262-B, Edition 05.2022, Bosch Rexroth AG
About this documentation | Plug-in switching amplifier VT-SSV 5/24
1 About this documentation
1.1 VALIDITY OF THE DOCUMENTATION
This documentation is valid for plug-in switching amplifier VT-SSV 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, operation, use, maintenance, and removal
of the product.
▶ Read this documentation thoroughly, especially Chapter 2 “Safety instructions“
and Chapter 3 “General notes 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. The documentations can be found on the product site or at www.
boschrexroth.com/mediadirectory.
Tabelle 1: Required and supplementary documentation
Title Document number Document type
Order confirmation
Plug-in switching amplifier type VT-SSV-1-2X/ 30262 Data sheet
1.3 REPRESENTATION OF INFORMATION
In order that this documentation allows you to work directly and safely with your
product, standardized safety notes, symbols, terms, and abbreviations are used.
For a better understanding, they are explained in the following sections.
1.3.1 Safety instructions
In this documentation, safety instructions precede a sequence of activities
whenever there is a risk of personal injury or damage to equipment. The hazard
avoidance measures described must 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

6/24 Plug-in switching amplifier VT-SSV | About this documentation
Bosch Rexroth AG, Edition 05.2022, RE 30262-B
• Consequences: describes the consequences in case of non-compliance
• Precautions: states, how the hazard can be avoided
Tabelle 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.
Tabelle 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:
Tabelle 4: Designations
Designation Meaning
RE xxxxx Rexroth document in English language
VT-SSV-1 Plug-in switching amplifier
1.3.4 Abbreviations
The following abbreviations are used in this documentation:
Tabelle 5: Abbreviations
Abbreviation Meaning
ANSI American National Standards Institute
EMC Electromagnetic compatibility
PELV Protective Extra Low Voltage

RE 30262-B, Edition 05.2022, Bosch Rexroth AG
Safety instructions | Plug-in switching amplifier VT-SSV 7/24
2 Safety instructions
2.1 ABOUT THIS CHAPTER
The product has been manufactured according to the generally accepted codes of
practice. However, there is still a 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 electronic component.
You may use the product as follows:
• For activating on/off valves with a voltage of 24 V DC
• For applications as specified in technical data sheet RE 30262
• While adhering to the operating and ambient conditions according to data sheet
RE 30262
• While adhering to the given performance limits
• In the original condition, without damage
• Repairs by customers are not permitted
The product is intended exclusively for professional use and not for private usage.
Operation according to the intended use also implies that you have read
and understood this documentation completely, especially chapter 2 “Safety
instructions“.
2.3 IMPROPER USE
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.
Improper use includes, but is not limited to:
• operating the electronics outside the specified performance limits and operating
conditions, especially the prescribed ambient conditions;
• the use as safety-related part of controls in the sense of DIN EN ISO 13849.
Functional safety must be realized by means of appropriate, additional
components.
• the use in potentially explosive atmospheres
• improper handling and transport
• improper storage
• lack of cleanliness during storage and assembly
• incorrect installation

8/24 Plug-in switching amplifier VT-SSV | Safety instructions
Bosch Rexroth AG, Edition 05.2022, RE 30262-B
2.4 QUALIFICATION OF PERSONNEL
The activities described in this documentation require basic knowledge of electrics
and hydraulics as well as knowledge of the associated 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 expert knowledge.
With regard to electronic products, expertise means, for example:
• the ability to read and completely understand circuit diagrams,
in particular, completely understanding the correlations regarding safety
equipment and
• knowledge of the function and structure of electrical and electronic components.
Bosch Rexroth offers training courses that support your qualification in specific
fields. You can find an overview of training contents on the Internet at: http://
www.boschrexroth.com
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 accessory and spare parts released by the manufacturer in order to
rule out personnel hazards arising from unsuitable spare parts.
• Comply with the technical data and ambient conditions specified in the product
documentation.
• If unsuitable products are installed or used in safety-relevant applications,
unintended operational states can occur in these applications, which can cause
personal injury and damage to property. Therefore, use the product only in
safety-relevant applications, if this use is expressly specified and permitted in
the documentation of the product, for example, in explosion-protection areas or
in safety-related parts of a control (functional safety).
• You may commission the product only when it has been established that the
final product (for example, a machine or system), in which the Rexroth product
is installed, complies with national regulations, safety regulations and standards
relevant for the application.

RE 30262-B, Edition 05.2022, Bosch Rexroth AG
Safety instructions | Plug-in switching amplifier VT-SSV 9/24
2.6 PRODUCT- AND TECHNOLOGY-RELATED SAFETY
INSTRUCTIONS
WARNING
Hazardous movements!
Risk of injury due to incorrect connection or incorrect activation of electrical and
electronic devices and resulting unforeseeable machine movements.
▶ Observe safety according to EN ISO 13849 or IEC 62061.
▶ If persons have to enter the hazard zone while the control is active, provide
superordinate monitoring functions or measures for personal safety. 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 manufacturer/user.
In this connection, the safety provisions applied for the system must be taken
into account.
▶ Failures and defects in the control current or the energy supply can result in
uncontrolled machine movements.
▶ Electronics emit interference to other electronics within the permitted limit
values and also react to interference. This can cause malfunction in the
control process. Only use electronics below EMC limit values or provide
appropriate shielding.
▶ Electrostatic processes, an inadequate grounding concept or missing
equipotential bonding can lead to damage to the electronics and hence
cause malfunction or uncontrolled movements of the machine. Ensure proper
grounding and provide equipotential bonding.
▶ Using the product outside the specified IP protection class can result in
short-circuit and malfunction and hence in uncontrolled machine movements.
Therefore, use the product only within the IP protection class and in
environments as specified in the data sheet.
▶ Provide safety functions for personal safety separately. Amplifiers, command
value processing cards and control electronics themselves do not include
safety functions for personal safety and are no safety-related components.
▶ Avoid contact with salt-laden environments and adhere to the ambient
temperature given in the data sheet.
▶ In the event of an emergency, fault or other abnormalities, switch the system
off and secure it against being switched on again.
High electrical voltage due to incorrect connection!
Danger to life, risk of injury due to electric shock.
▶ When carrying out any work, disconnect the relevant machine section from the
power supply and protect it against being switched on again.
▶ Only connect devices, electrical components and cables which feature
protective extra low voltage (PELV) to connections or terminals having
voltages from 0 to 50 Volt.
▶ 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.

10/24 Plug-in switching amplifier VT-SSV | Safety instructions
Bosch Rexroth AG, Edition 05.2022, RE 30262-B
WARNING
Lightning
Risk of uncontrolled machine movements.
▶ An inadequate grounding concept or missing equipotential bonding can lead to
damage to the electronics. Provide for equipotential bonding of the device
CAUTION
Fault currents and short-circuits!
Impairment of safety and malfunction.
▶ Keep the surroundings free from electrically conductive contamination (acids,
bases, corrosive agents, salts, metal vapors, etc.) and do not expose the
device to these substances. 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).
2.8 OBLIGATIONS OF THE MACHINE END-USER
The operation of installations, systems and machines basically requires the
implementation of a holistic IT security concept which is state-of-the-art in terms
of technology. Accordingly, BoschRexroth products and their properties must be
considered as components of installations, systems and machines for their holistic
IT security concept.
Unless otherwise documented, BoschRexroth products are designed for operation
in local, physically and logically secured networks with access restrictions for
authorized persons, and they are not classified according to IEC62443-4-2.

RE 30262-B, Edition 05.2022, Bosch Rexroth AG
General notes on damage to property and damage to the product | Plug-in switching amplifier VT-SSV 11/24
3 General notes 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!
▶ Only use the cables specified in the data sheet with the respective cable
cross-sections for electronic devices from Bosch Rexroth!
External electromagnetic interference!
Risk of malfunction.
▶ The distance to radio sources must be sufficiently large (>> 1 m).
▶ In the case of strongly fluctuating operating voltage, it may be necessary to
use an external smoothing capacitor in individual cases.
Emitted interference!
Risk of affecting other devices.
▶ Use shielded signal and solenoids cables in order that EMC requirements are
fulfilled.
Overloading!
Risk of overloading and damage to the supply cable in the case of insufficient
dimensioning and/or operation with several electrical devices.
▶ Provide current limitation by overload protection.
▶ Select an appropriate rating of power supply units and cables.
Short-circuit!
Risk of overloading and damage of the supply cable in the case of defects of the
electrical device.
▶ Provide current limitation by overload protection.
Impermissible temperature range!
Risk of overheating. The devices can be thermally destroyed.
▶ Adhere to the specification in the data sheet.
Cables lying around!
Risk of stumbling!
▶ Lay cables and lines so that they cannot be damaged and no one can trip over
them.
The warranty only applies to the delivered configuration.
Warranty claims will be rejected in the case of improper installation,
commissioning and operation as well as in the case of use not in accordance with
the intended purpose and/or improper handling.

12/24 Plug-in switching amplifier VT-SSV | Scope of delivery
Bosch Rexroth AG, Edition 05.2022, RE 30262-B
4 Scope of delivery
Information on the scope of delivery of your Bosch Rexroth Product can be found
in the shipping documents and data sheet RE 30262 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 21.
5 About this product
You can find information on the product and its performance in the data sheet
of your electronics.
5.1 IDENTIFICATION OF THE PRODUCT
The most important data of the product are printed directly on the product.
1 Word mark
2 Material short text
3 Material number
4 Circuit diagram
5 Electrical data
6 Country of origin
7 Markings of conformity
8 Plant
2
3
1
5
6
4
7
8

RE 30262-B, Edition 05.2022, Bosch Rexroth AG
Transport and storage | Plug-in switching amplifier VT-SSV 13/24
6 Transport and storage
There are no special instructions for transporting electronic products. You must,
however, observe the notes in Chapter 2 “Safety instructions” and comply with the
ambient conditions for storage and transport which are detailed in the technical
data sheet RE 30262.
6.1 STORING THE VT-SSV-1-2X
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 specified in the data sheet.
▶ Protect the electronics from dust and humidity and UV radiation.

14/24 Plug-in switching amplifier VT-SSV | Installation
Bosch Rexroth AG, Edition 05.2022, RE 30262-B
7 Installation
NOTICE
Risk of short-circuit!
In the case of electronics with housing, water may condense within the housing!
▶ Let the electronics acclimate itself for several hours, as otherwise water may
condense in the housing.
▶ When installing the product, use the seals provided for that purpose.
▶ When working on electronics, observe strictest cleanliness and make sure that
no fluids will enter the housing.
Major potential differences!
Risk of destruction of electronics by plugging or unplugging connectors under
voltage.
▶ Switch off power supply to the relevant system part before installing the
products or plugging or unplugging connectors.
External electromagnetic interference!
Risk of malfunction.
▶ The distance to radio sources must be sufficiently large (>> 1 m).
▶ Do not lay solenoid or signal cables near power cables.
▶ Shield command and actual value cables. Connect the shield to system
ground on both ends.
7.1 REQUIRED TOOLS
To connect flexible cables to the terminals of the VT-SSV-1-2X you require a
screwdriver (flat head 3.0 x 0.5 mm, and for the flat head screw 5.5 x 1.0 mm).
Further tools are not required.
7.2 INSTALLATION CONDITIONS
▶ When installing the amplifier, strictly adhere to the ambient conditions
specified in data sheet RE 30262.
▶ The housing of the VT-SSV-1-2X features protection class IP65. Requirements
that exceed type of protection IP65 have to be ruled out. Avoid contact of the
VT-SSV-1-2X with hydraulic fluids, acids, bases, corrosive agents, salts, metal
vapors, solvents, etc.
7.2.1 Place of installation
Electronics from Bosch Rexroth are intended for mounting on on/off valves in
hydraulic systems and machines.

RE 30262-B, Edition 05.2022, Bosch Rexroth AG
Installation | Plug-in switching amplifier VT-SSV 15/24
7.3 INSTALLING UND CONNECTING THE VT-SSV-1-2X
The dimensions of plug-in switching amplifier VT-SSV-1-2X are given in data sheet
RE 30262.
Assemble the unit using a plastic cable gland PG11 with inserted seal. The
clamping range is 7.6 ... 11.5 mm
The required tightening torque for flat head screw M3 is 0.5Nm, for clamping
screw M2,6 max. 0.4 Nm.
Proceed as follows to assemble the VT-SSV-1-2X:
1. Loosen the flat head screw and open the cover.
2. Lead the connection cable through the plastic cable gland PG11.
3. Fasten the connection cable with the help of the clamping screws.
4. Tighten plastic cable gland PG11.
5. Close the cover and tighten the flat head screw to the specified tightening
torque.
7.4 CONNECTING THE SUPPLY VOLTAGE
1. Disconnect the relevant system part from the power supply.
2. Inspect all cables for intactness.
3. Connect the signal and solenoid cables according to your circuit diagram to the
relevant terminals of the VT-SSV-1-2X.
4. Connect the supply voltage and check the presence of voltage by switching on.
Tabelle 6: Cable variant
Connection cable Cross-
section
Single-wire 2.5 mm²
Ultrafine-wire 1.5 mm²
With wire end ferrule 1.5 mm²
For cable gland PG11 the hole in the cover is expanded to ⌀ 12.
The stripped length is 5 mm.
7.4.1 Suppressing interference of the system
Should interference occur in conjunction with signals of the VT-SSV-1-2X, check
the interference suppression of other electrical components, e.g. as follows:
Tabelle 7: Suppressing interference
Possible causes of faults
Switched inductance DC: antiparallel free-wheeling diode over actuator winding
AC: type-related R/C combination over actuator winding.
Electric motors R/C combination from each motor winding to earth.
Frequency converter Inlet filter in the voltage supply of the frequency converter
Motor control lines shielded and installed separately from other
cables and/or output filter for motor cables.
Large-area contact of the frequency converter housing to the
rear wall of the control cabinet

16/24 Plug-in switching amplifier VT-SSV | Commissioning
Bosch Rexroth AG, Edition 05.2022, RE 30262-B
8 Commissioning
NOTICE
Uncontrolled plugging and unplugging of connectors!
The device might be destroyed.
▶ Before plugging or unplugging connectors into or from the device, disconnect
the device from the power supply or de-energize it reliably!
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 30262.
For commissioning we recommend using a multimeter.
8.1 BLOCK CIRCUIT DIAGRAM OF THE VT-SSV-1-2X
Abb. 1: Block diagram
1 Connection terminals
– Operating voltage “U+” +24 V
– Enable “IN”
– Operating voltage “GND”
– Equipment grounding conductor “PE”
– Clamping screw M2,6; tightening torque Ma max = 0.4 Nm
2 Electronic switch
3 LED status indicator lamp
4 Electrical connections
9 Operation
Should a fault occur during operation, e.g. a power failure, the VT-SSV-1-2X can
simply be switched on again without requiring further measures and it is then
ready for operation again.
1
2
U+
IN
GND
PE
PE
U+
IN
PE
41
2
3

RE 30262-B, Edition 05.2022, Bosch Rexroth AG
Maintenance and repair | Plug-in switching amplifier VT-SSV 17/24
10 Maintenance and repair
10.1 CLEANING AND CARE
NOTICE
Ingress of contaminants and humidity!
Malfunction and loss of function.
▶ When working on electronics observe strictest cleanliness.
▶ Only use a dry and dust-free cloth for cleaning.
Solvents and aggressive cleaning agents!
Damage and accelerated aging of electronics.
▶ Do not use aggressive cleaning agents for cleaning, but only a dry and dust-
free cloth.
Proceed as follow for cleaning and care:
▶ Carry out a visual inspection and check that all screws are tightened and hoses
fit properly.
▶ Check all plug-in and clamped connections at least once a year for correct fit
and damage.
▶ Inspect cables for rupture and crushes. Have damaged or defective cables
replaced immediately!
▶ Clean housing parts with a dry and dust-free cloth.
10.2 INSPECTION AND MAINTENANCE
Maintenance of Bosch Rexroth electronics is restricted to the points described
under chapter 10.1“Cleaning and care” above.
10.3 REPAIR
Bosch Rexroth electronics can 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.
Please return the devices to us in their original packaging.
Repaired devices are returned with factory settings.
In the case of parameterized devices, user-specific settings are not maintained.
The operator has to transmit the relevant user parameters again.

18/24 Plug-in switching amplifier VT-SSV | Demounting and replacement
Bosch Rexroth AG, Edition 05.2022, RE 30262-B
11 Demounting and
replacement
11.1 REQUIRED TOOLS
For replacement, a screwdriver is necessary.
11.2 PREPARING DEMOUNTING
WARNING
Risk of injury by demounting parts under pressure and electric voltage!
If you do not de-pressurize and de-energize the system before starting demounting,
you may get injured and the product or system parts may be damaged!
▶ Decommission the entire system as described in the general instructions for
the system.
▶ The system and all connected components must be brought to a safe state. In
addition, the components must be switched off, de-pressurized, de-energized
and secured against restarting.
Decommission the entire system as described in the general instructions for the
system. In any case, bring the system to a safe state, shut it down, depressurize and
disconnect it from the power supply and secure it against being switched on again.
11.3 DEMOUNTING
NOTICE
Electric arc and short-circuit!
Risk of destruction of system components.
▶ Put plug-in connectors down in a way that no short-circuit fault can occur.
Proceed as follows to demount the VT-SSV-1-2X:
1. Loosen the flat head screw and remove the connector.
2. Loosen the plastic cable gland PG11.
3. Open the cover and loosen the clamping screws.
4. Remove the connection cable.
11.4 PREPARING THE COMPONENTS FOR STORAGE OR
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 specified in data sheet RE
30262.
▶ Protect the Product from dust and humidity.

RE 30262-B, Edition 05.2022, Bosch Rexroth AG
Disposal | Plug-in switching amplifier VT-SSV 19/24
12 Disposal
12.1 ENVIRONMENTAL PROTECTION
Careless disposal of the devices can lead to pollution of the environment.
▶ Therefore, dispose of the products according to the national regulations in your
country.
▶ Observe the following notes for an environmentally friendly disposal of the
devices.
12.2 RETURN TO BOSCH REXROTH AG
Products manufactured by us can be returned to us free of charge for disposal.
When returned, the products must not contain any inappropriate foreign
substances or third-party components. The components have to be sent carriage
paid to the following address:
Bosch Rexroth AG
Service Industriehydraulik
Bürgermeister-Dr.-Nebel-Straße 8
97816 Lohr am Main
Germany
12.3 PACKAGING
Upon request, reusable systems can be used for regular deliveries.
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. In the normal case, no
negative effects on human beings and on the environment have to be expected.
Electronics from Bosch Rexroth mainly consist of:
• Plastics, electronics components and assemblies as well as copper
12.5 RECYCLING
Due to the high share of metals the material of the products can mostly be
recycled. In order to achieve an ideal metal recovery, disassembly into individual
assemblies is required. The metals contained in electrical and electronic
assemblies can also be recovered by means of special separation procedures. If
the products contain batteries or accumulators, they have to be removed before
recycling and furnished to the battery recycling, if possible.

20/24 Plug-in switching amplifier VT-SSV | Extension and modification
Bosch Rexroth AG, Edition 05.2022, RE 30262-B
13 Extension and modification
The VT-SSV-1-2X must be neither extended nor converted.
14 Troubleshooting
14.1 HOW TO PROCEED FOR TROUBLESHOOTING
Always work systematically and purposefully, even when under time pressure.
Random and imprudent disassembly and readjustment of settings can, in the
worst-case scenario, result in the inability to determine the original cause of error.
• First obtain a general overview of how your product works in conjunction with
the entire system.
• Try to find out whether the product has functioned properly in conjunction with
the overall system before the fault occurred.
• Try to determine any changes of the overall system in which the product is
integrated:
– Were there any changes to the product’s operating conditions or operating
range?
– Were there any changes (e.g. retrofit) or repairs carried out on the complete
system (machine/system, electrics, control) or on the product?
If yes: 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 error. If possible, ask the direct
(machine) operator.
If you cannot rectify the error, contact one of the contact addresses which can be
found at www.boschrexroth.com or in the address directory in chapter 16.1.
15 Technical data
You can find the technical data of your device in data sheet RE 30262.