Bosch Rexroth CytroMotion User manual

Self-contained axis
Type CytroMotion
Operating Instructions
RE62290-B,
05.22

Copyright
© Bosch Rexroth AG Bosch Rexroth AG© 2022
All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the
event of applications for industrial property rights.
Liability
The specified data is intended for product description purposes only and shall not be deemed to be a guaranteed
characteristic unless expressly stipulated in the contract. All rights are reserved with respect to the content of this
documentation and the availability of the product.
6b23c87c51fde0b40a347e886ff803f6, 1, en_US

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Table of contents
1 About this documentation 5
1.1 About this documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Required and amending documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Representation of information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Safety instructions 9
2.1 General information on this chapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Intended use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Improper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Qualification of personnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 General safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6 Product-specific safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.7 Personal protective equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.8 Obligations of the machine end-user. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3 General information on damage to property and damage to the product 15
4 Scope of delivery 17
5 Product information 19
5.1 Product description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.1.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.1.2 Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.1.3 Set-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2 Product identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.2.1 Name plate of the self-contained axis. . . . . . . . . . . . . . . . . . . . . . . . . 21
5.3 Technical interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.3.1 Mechanical interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.3.2 Electrical interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.3.3 Hydraulic interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6 Transport and storage 23
6.1 Transport. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.2 Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7 Assembly 27
7.1 General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.2 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.3 Installation conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.3.1 Drive unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.3.2 Cable set. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.3.3 Installation position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.4 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.5 Assembling the self-contained axis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.5.1 Preparation for assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.5.2 Mechanical installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.5.3 Hydraulic assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.5.4 Electrical assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8 Commissioning 37
8.1 General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

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9 Operation 39
9.1 Modes of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
10 Maintenance and repair 41
10.1 General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
10.2 Cleaning and care. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
10.3 Maintenance schedule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
10.4 Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
10.5 Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
10.6 Exchange of components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
11 Disassembly and removal 45
11.1 General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
11.2 Preparing for disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
11.3 Disassembly process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
11.4 Storage / further use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
11.5 Exchange of components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
12 Disposal 47
13 Extension and modification 49
14 Troubleshooting 51
14.1 General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
14.2 How to proceed for troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
14.3 General error list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
15 Technical data 53
16 Appendix 55
16.1 Service and support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
17 Index 57

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1 About this documentation
1.1 About this documentation
This documentation applies to the following products:
●Self-contained axis “CytroMotion”
For a detailed product description, please refer to: ⮫ Chapter 5.1 Product
description on page 19. For the exact scope of delivery of the self-contained
axis ordered, please refer to the order confirmation.
This documentation is intended for assemblers, operators, service engineers,
developers and system end-users. This documentation contains important infor-
mation on the safe and proper assembly, transport, commissioning, operation,
use, maintenance, disassembly and simple troubleshooting of the axis. Read
this documentation completely and thoroughly, particularly ⮫ Chapter 2 Safety
instructions on page 9, before working with the product.
1.2 Required and amending documentation
Only commission the product once you have been provided with the docu-
mentation marked with the book symbol and you have understood and
observed it.
Title Document number Document type
System documentation from the manufacturer General informa-
tion on the overall
system
Order confirmation Contains the scope
of delivery
Declaration of incorporation of the self-con-
tained axis
Document DCTC 31000-211
Self-contained axis type CytroMotion R.62290 ⮫ Data sheet
Hydraulic valves for industrial applications R. 07600-B ⮫ Operating
instructions
Mating connectors and cable sets for valves
and sensors
R. 08006 ⮫ Data sheet
Pressure transducer for hydraulic applications
type HM20
R.30272/R.30272-
MON
⮫ Data sheet
⮫ Assembly
instructions
Directional spool valves, direct operated, with
solenoid actuation, type WE
R.23178 ⮫ Data sheet
Mounting elements for hydraulic cylinders R.17042 ⮫ Data sheet
1.3 Representation of information
Uniform safety instructions, symbols, terms and abbreviations are used so that
you can quickly and safely work with your product using this documentation.
For a better understanding, they are explained in the following sections.
Safety instructions
In this documentation, safety instructions are contained in chapter ⮫ Chapter 2
Safety instructions on page 9 and in chapter ⮫ Chapter 3 General information
on damage to property and damage to the product on page 15 and before
sequences of actions or instructions where there is a danger of personal injury
or damage to property. Observe the hazard avoidance measures described.
Safety instructions are structured as follows:

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WARNING Type and source of danger! or consequences of non-com-
pliance
−Hazard avoidance measures
●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 of non-compliance
●Precautions: specifies how the danger can be prevented
DANGER In the case of non-compliance with these safety instruc-
tions, death or severe injury will occur.
WARNING In the case of non-compliance with these safety instruc-
tions, death or severe injury may occur.
CAUTION In the case of non-compliance with these safety instruc-
tions, minor or moderate injury may occur.
NOTICE In the case of non-compliance with these safety instruc-
tions, damage to property may occur.
Designations
The following designations are used in this documentation:
Table 1: Designations
Designation Meaning
CytroMotion Self-contained axis
Conventions for symbols
The following symbols are used in these operating instructions and/or on the
linear drive. The used symbols have the meanings described below:
Table 2: Warnings according to DIN EN ISO 7010
Designation Meaning
Warning: dangerous, electrical voltage
Warning: hot surface
Warning: suspended load
Warning: slip hazard
Abbreviations
The following designations are used in this documentation:
Table 3: Abbreviations
Designation Meaning
4Q 4 quadrant operation
EN European Standard
EC European Community
EU European Union
Ex Explosion protection
IEC International Electrotechnical Commis-
sion

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Designation Meaning
ISO International Organization for Stand-
ardization

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Improper use
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2 Safety instructions
2.1 General information on this chapter
Observe the general safety instructions in this chapter and the safety instruc-
tions and instructions for action in this documentation. This helps avoid per-
sonal hazards, damage to property and faults.
●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 passing the product on to
third parties.
2.2 Intended use
The self-contained axis is a drive unit consisting of a cylinder (including con-
nection tubes), motor-pump group, compensator , valve block (optionally with
a hood) and an optional position measurement system. The exact scope of
delivery is indicated in the order confirmation.
The self-contained axis is an electric and hydraulic system component.
According to directive 2006/42/EC by the EU and EN 982, the self-contained
axis is a component that is not ready for use. Only use the axis for installation
into systems! According to the Pressure Equipment Directive 97/23/EC (article
1 / section 3.10), the axis is not to be classified as a pressure vessel but as
hydraulic controlling equipment as the pressure is not the decisive factor for
the construction but rigidity, dimensional stability and stability against static
and dynamic operating loads.
The self-contained axis is intended for use in production machines.
The product is only intended for professional use and not for private use.
Intended use includes having read and understood this documentation and
especially this chapter.
The commissioning of the self-contained axis may only take place after the nec-
essary safety requirements have been fulfilled by the machinery and/or system.
Operation is only permitted with the system in its original state, and when
undamaged and completely assembled.
The self-contained axis may only be operated within its specified perform-
ance/limit data. Overloading the system leads to a failure of the proper func-
tion. Observe the performance/limit data in the technical ⮫ data sheet of the
self-contained axis.
Installation and expansion of the machinery as well as replacing components
in the scope set down in the operating instructions may only be performed
by Bosch Rexroth or by authorized and trained personnel from a specialist com-
pany authorized by Bosch Rexroth (see ⮫ Chapter 2.4 Qualification of personnel
on page 10). Other repairs may only be carried out by the manufacturer.
2.3 Improper use
Any use deviating from the intended use is improper and thus inadmissible.
Bosch Rexroth AG does not assume any liability for damage caused by improper
use. The user assumes all risks involved with improper use.
The installation or use of inappropriate products in safety-relevant applications
could result in unintended operating states which in turn could cause personal
injuries and/or damage to property. Therefore, please only use a product for

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safety-relevant applications if this use is expressly specified and permitted in
the documentation of the product. For example, in explosion-protected areas or
in safety-related control components (functional safety).
Improper use of the product includes:
●Non-compliance with the technical data, operating conditions and perform-
ance limits according to operating instructions and order confirmation
●Incorrect installation
●Incorrect storage
●Incorrect transport
●Lack of cleanliness during storage, assembly and operation
●Non-compliance with the prescribed maintenance intervals
●Implementation of impermissible modification, maintenance and repair work
2.4 Qualification of personnel
The activities described in this documentation require basic knowledge of
mechanics, electrics and hydraulics as well as knowledge of the appropriate
technical terms. For transporting and handling the product, additional knowl-
edge of how to handle lifting gear and the necessary attachment devices is
required. 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 can recognize potential dangers and apply the appro-
priate safety measures due to their professional training, knowledge and expe-
rience, as well as their understanding of the relevant conditions pertaining to
the work to be undertaken. An expert has to observe the relevant specific
professional rules and have the necessary expert knowledge. Expert knowledge
means for example:
●Being able to read and completely understand hydraulic and electric circuit
diagrams
●Being able to understand completely the correlations regarding the safety
equipment
●Having knowledge of the function and set-up of electro-hydraulic compo-
nents and converter technology
●Having basic knowledge of control technology
●Having knowledge of the function, set-up and work on self-contained axes.
This knowledge can be obtained in training which is offered specifically for
this purpose.
Bosch Rexroth offers measures supporting training in specific fields. An over-
view over the training contents can be found online at: ⮫ http:// www.boschrex-
roth.com
2.5 General safety instructions
●Observe the valid regulations on accident prevention and environmental pro-
tection.
●Observe the safety regulations and provisions of the country in which the
product is used/applied.
●Only use Rexroth products in technically perfect condition.
●Observe all information on the product.
●Persons assembling, operating, disassembling or maintaining Rexroth prod-
ucts may not be under the influence of alcohol, other drugs or medication
influencing the ability to react.
●Only use original Bosch Rexroth accessories and spare parts in order to
prevent any hazard to persons due to unsuitable spare parts.

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●Comply with the technical data and ambient conditions specified in the
product documentation.
●The installation or use of inappropriate products in safety-relevant applica-
tions could result in unintended operating states 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 per-
mitted in the documentation of the product, 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 or system) where the Bosch Rexroth products are
installed complies with the country-specific provisions, safety regulations
and standards of the application.
2.6 Product-specific safety instructions
The following safety instructions apply to chapters 6 to 14.
WARNING Exceeding of maximum temperatures! Use of the self-
contained axis outside the approved temperature ranges
may lead to functional failures or raised surface tempera-
tures.
Only use the self-contained axis within the intended envi-
ronmental and hydraulic fluid temperature range.
WARNING Danger of damage to property and personal injuries!
Modifications to the self-contained axis, e.g. replacing
piping, opening fittings which are not described in these
operating instructions or which have not been agreed
upon with Bosch Rexroth, may lead to damage to per-
sons and property!
−Components of the self-contained axis may only be
replaced if they are described in these operating
instructions.
−Any modifications may only be performed by Bosch
Rexroth or by authorized and trained personnel from
a specialist company authorized by Bosch Rexroth.
−The assembly and installation information and
assembly instructions have to be observed.
−The bleed valve is used to fill the self-contained axis
at the factory and may not be utilized, unscrewed or
modified in any way.
−The pressure relief valves are set to the maximum
admissible operating pressure and may not be
adjusted. The lead seals affixed to the valves may not
be destroyed.
WARNING Non-compliance with functional safety! In case of
mechanical and electric faults, e.g. failure of the energy
supply, persons may be caught by the system, kicked
away or pinched.
When setting up the circuit, observe the requirements
for functional safety according to ISO 13849 or IEC
61508.

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WARNING High electrical voltage above 50 V! Danger to life and risk
of injury caused by electric shock.
−De-energize the self-contained axis before installa-
tion, pulling and connecting connectors and all other
work.
−Secure the electrical equipment against restarting.
Verify that there is no voltage using tested measuring
equipment.
−Before switch on, check whether the protective
grounding conductor of all electric devices is firmly
connected according to the connection diagram.
−Measure the electrical voltage of live parts before
beginning the work in order to avoid hazards caused
by contact.
−Do not touch the electrical connection points of the
components if the system is switched on.
WARNING Danger due to pressurized hydraulic fluid! Danger of poi-
soning and risk of injury (e.g. eye injuries, skin lesions,
poisoning due to inhalation and ingestion)
−Check the piping for wear and damages before any
commissioning.
−Use personal protective equipment (e.g. safety gog-
gles, protective gloves, suitable working clothes,
safety shoes, etc.).
−If nevertheless hydraulic fluid comes into contact
with the eyes or penetrates the skin, please consult
a doctor immediately.
−When dealing with hydraulic fluids, it is imperative to
observe the safety instructions of the hydraulic fluid
manufacturer.
WARNING Hot surfaces! Risk of burning. The self-contained axis
heats up considerably during operation. Individual com-
ponents of the self-contained axis can get so hot during
operation that they may cause burns.
−Allow the self-contained axis to cool down sufficiently
before touching it.
−Wear heat-resistant protective clothing, e.g. gloves.
WARNING Flammable hydraulic fluid! Risk of fire.
−Keep open fire and ignition sources away from the
self-contained axis.
−Ensure sufficient ventilation.
−Do not carry out welding works at or in the vicinity of
pressurized self-contained axes.
WARNING Danger due to pressurized self-contained axes! Risk of
injury! Severe injury when working at systems that have
not been stopped! Damage to property! Even once the
self-contained axis has been disconnected from the elec-
trical power supply, the system is still pressurized (accu-
mulator pressure max. 10 bar)!
−Observe the specifications of the system manufac-
turer and the system end-user!
−Do not disconnect lines, connections or components
as long as the self-contained axis is under pressure.

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WARNING Danger due to magnetic and electro-magnetic fields in
the area of the self-contained axis! Magnetic and electro-
magnetic fields existing in the direct vicinity of electric
equipment may represent a serious danger to persons
with heart pacemakers, metal implants and hearing aids.
−If it is necessary for somebody with a pacemaker to
enter such an area, a doctor must be consulted prior
to doing so. The interference resistance of implanted
heart pacemakers can vary greatly; there are conse-
quently no generally valid rules.
−Persons with metal implants or metal splinters, as
well as with hearing aids, must consult a doctor
before they enter these kinds of areas.
CAUTION Uncontrolled system behavior! Risk of injury! The mal-
function of individual components may lead to malfunc-
tions of the assembly which results in unexpected
behavior!
−Immediately have defective components exchanged.
CAUTION Improperly laid lines and cables! Risk of injury!
−Lay cables and lines so that no-one can trip over
them.
−Lay cables and lines so that they cannot be damaged
by inflection or shearing.
−Lay cables and lines so that their insulation cannot
be damaged by severe heat.
2.7 Personal protective equipment
Use suitable protective equipment (e.g. safety goggles, safety shoes, protective
gloves) during any work (e.g. installation, repair, maintenance) on the self-con-
tained axis.
All parts of the protective equipment have to be fully functional.
2.8 Obligations of the machine end-user
The machine end-user of the self-contained axis is responsible for ensuring that
●the self-contained axis is only used according to the intended use as defined
in these operating instructions.
●the self-contained axis is only stored, operated and maintained according to
the specified operating and ambient conditions, in particular that the stated
limit values are not exceeded.
●the operating personnel are instructed at regular intervals.
●a danger zone is marked, if required.
●the safety measures for the specific area of application of the self-contained
axis are complied with.
●the maintenance activities according to the maintenance schedule are
adhered to.
●there is no increased levels of EMC interference at the place of use in
accordance with EMC directive 2014/30/EU.
IT security
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
have to be considered as components of installations, systems and machines

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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.

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3 General information on damage to property
and damage to the product
The warranty only applies to the delivered configuration.
●The claim to warranty expires if the product is assembled, commissioned
and operated incorrectly, not used as intended and/or handled improperly.
●The following safety instructions apply to chapters 6 to 14.
NOTICE Welding and painting work! Risk of damage! Electrostatic
charging can destroy electronics.
−Avoid electrostatic charging of electronic compo-
nents.
NOTICE Painting work! Risk of damage! Contact surfaces may be
damaged. Risk of overheating due to insufficient heat
radiation and impaired functionality of measurement sys-
tems.
−Never paint measurement systems, cooling and con-
tact surfaces.
NOTICE Inadmissible mechanical load! Risk of damage! Any
mechanical load, particularly sudden impact or similar
forces, may damage or even destroy the self-contained
axis.
−Avoid impacts against the attachment parts of the
self-contained axis.
−Do not put or place the self-contained axis onto the
attachment parts.
−Never use the self-contained axis to sit or step on. Do
not place/put any objects on top of it.
NOTICE Foreign particles and dirt in the system! Risk of damage,
wear and malfunctions due to ingress of dirt and for-
eign particles. Contamination and metal particles may
damage the self-contained axis and cause leakage.
−Check before commissioning whether all hydraulic
connections are tight and that all the seals and caps
of the plug-in connections are correctly installed and
undamaged.
−Ensure that no cleaning agents are able to penetrate
the hydraulic system.
−Do not use cotton waste or linting cleaning cloths for
cleaning.
NOTICE Wear! Wear may lead to malfunctions.
−Perform the prescribed maintenance work at the
intervals specified in the operating instructions.
NOTICE Hydraulic fluids harmful to the environment! Leaking
hydraulic fluid leads to environmental pollution.
−Immediately remedy possible leakage. Use an oil
binding agent in order to bind the leaked hydraulic
fluid.
−Dispose of the hydraulic fluid in accordance with
the currently applicable national regulations in your
country.
−Please immediately contact Bosch Rexroth Service,
see ⮫ Chapter 16.1 Service and support on page 55.

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Self-contained axis
Bosch Rexroth AG
RE62290-B,
05.22
NOTICE Mixing hydraulic fluids! It is not admissible to mix
hydraulic fluids of different manufacturers and/or dif-
ferent types of hydraulic fluid from the same manufac-
turer!
−Observe the manufacturer information for the
hydraulic fluids used.

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Self-contained axis
Bosch Rexroth AG
RE62290-B,
05.22
4 Scope of delivery
The scope of delivery of the self-contained axis includes the following:
●One servo-hydraulic drive unit, consisting of a cylinder (including connec-
tion tubes), motor-pump group, compensator, valve block (optionally with a
hood) and an optional position measurement system.
For the exact scope of delivery of the self-contained axis ordered, please refer
to the order confirmation.
●Check the scope of delivery for completeness.
●Check the scope of delivery for possible transport damage, see ⮫ Chapter 6
Transport and storage on page 23.
In case of complaints, please contact Bosch Rexroth AG, see ⮫ Chapter 16.1
Service and support on page 55.

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Bosch Rexroth AG
RE62290-B,
05.22

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Self-contained axis
Product description
Bosch Rexroth AG
RE62290-B,
05.22
5 Product information
5.1 Product description
5.1.1 General information
The CytroMotion is a compact, energy-efficient self-sustaining axis that con-
verts electrical energy into a precise, controllable movement of a hydraulic cyl-
inder. The pre-tested overall system can be installed easily and independently
of position, the integration is purely electric.
It is possible to generate forces of up to 110 kN. It is also possible to switch
on a rapid traverse with reduced force in order to increase the speed of the
cylinder during extension to up to 740 mm/s (regenerative mode, version “R”).
The CytroMotion basically consists of a synchronous motor with a rotary
encoder, a 4Q-capable and low-noise internal gear pump, a cylinder unit, a
compensator for the compensation of differential volume, a valve block and an
optional position measurement system.
5.1.2 Types
The various versions of the self-contained axis are indicated by the type code,
see the ⮫ data sheet of the self-contained axis (chapter: “Order information”)
5.1.3 Set-up
The essential main components are described in the following.
Main components
−The following figure may deviate from the ordered axis in its configuration.

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Self-contained axis
Product description
Bosch Rexroth AG
RE62290-B,
05.22
Fig. 1: Self-contained axis (without hood)
1 Cylinder unit / actuator
2 Motor-pump group
3 Control block
4 Position measurement system (optional)
5 Compensator (low-pressure accumulator)
Cylinder unit / actuator
The cylinder unit of the compact axis converts flow and pressure into a linear
movement with force.
Motor-pump group
The motor-pump group provides hydraulic power as required.
Valve block
Switching the 2/2 directional seat valves (VA, VB, VE and VR) used allows
for the implementation of various functions such as retraction and extension
of the cylinder and holding the cylinder in place; it also provides the option
of switching on the rapid traverse, see ⮫ Chapter 9.1 Modes of operation
on page 39). The pressure transducers SA, SB and SK used monitor the
working pressures and the compensator pressure. In addition, the pressures
are limited by the pressure relief valves used.
Position measurement system (optional, cylinder version “S”)
The piston position is detected by an installed absolute position measurement
system.