Ewellix SCU 1 User manual

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Control unit - SCU
INSTALLATION, OPERATION AND MAINTENANCE MANUAL

33
Contents
WARNING
Read this manual before installing, operating or maintaining this
actuator. Failure to follow safety precautions and instructions
could cause actuator failure and result in serious injury, death or
property damage.
1.0 General information......................................................4
1.1 Information on this manual..............................................4
1.2 Explanation of symbols and signal words ......................4
1.3 Limitation of liability ........................................................5
1.4 Copyright.........................................................................6
1.5 Spare parts......................................................................6
1.6 Warranty terms................................................................6
1.7 Customer service ............................................................6
2.0 Safety .............................................................................7
2.1 Use ...................................................................................7
2.2 Responsibility of the owner and processor....................8
2.3 Personnel requirements..................................................9
2.4 Specic dangers .............................................................9
2.5 Safety equipment.......................................................... 11
2.6 Safeguard against restart ............................................. 11
2.7 Modication & Information of device ............................ 11
2.8 Manufacturer‘s declaration of EMC compliance.......... 13
3.0 Technical data............................................................. 19
3.1 Ambient conditions ...................................................... 19
3.2 Product label.................................................................20
4.0 Structure and function...............................................21
4.1 O ve r vi ew ........................................................................21
4.2 Brief description............................................................22
4.3 Special features ............................................................23
4.4 Requirements for 3rd party power supply....................23
4.5 Connections.................................................................. 23
4.6 Operating elements....................................................... 24
4.7 Options .......................................................................... 24
4.8 Accessories...................................................................25
5.0 Transport, packaging and storage ...........................26
5.1 Safety information for the transportation......................26
5.2 Transport inspection..................................................... 26
5.3 Return to the manufacturer...........................................26
5.4 Packaging......................................................................26
5.5 Storage.......................................................................... 27
6.0 Installation and rst operation .................................28
6.1 Installation location .......................................................28
6.2 Inspections prior to rst operation ............................... 28
6.3 Installation..................................................................... 28
6.4 Connection to the actuators .........................................29
6.5 Connection to operating elements ...............................29
6.6 Connection to main power supply................................30
6.7 Requirements concerning the installation of the
actuators with options .........................................................30
6.8 Initial start-up ................................................................ 31
7.0 Operation .....................................................................34
7.1 Safety .............................................................................34
7.2 Actions before use / Preconditions...............................35
7.3 Turn on...........................................................................35
7.4 Turn o...........................................................................36
7.5 Actions during the operation.........................................36
7.6 Emergency disengagement ..........................................37
7.7 Action after use..............................................................38
8.0 Maintenance................................................................39
8.1 Maintenance plan..........................................................39
8.2 Maintenance work.........................................................39
8.3 Measures following completed maintenance...............40
9.0 Malfunctions................................................................ 41
9.1 Malfunction table........................................................... 41
9.2 Start of operation after malfunction repair...................43
10.0 Dismantling................................................................44
10.1 Disposal .......................................................................44
11.0 Appendix ....................................................................45

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Control unit - SCU
1.0 General information
1.1 Information on this
manual
This manual provides important information on how to work
with the actuator (also called the device) safely and e-
ciently. The manual is part of the device, must always be
kept and should be available for personnel to read at any
time. All personnel working with the device must read and
understand this manual before starting any work. Strict
compliance with all specied safety notes and instructions is
a basic requirement for safety at work. Moreover, the acci-
dent prevention guidelines and general safety regulations
applicable at the place of use of the device must also be
complied with. For better representation of circumstances,
the illustrations in this manual are not necessarily to scale
and may vary from the actual design of the device. All infor-
mation and notes in this manual were compiled with due
consideration given to applicable standards and regulations,
the present status of technology and our years of knowledge
and experience.
Summary of contents
The operation manual serves as a reference work. The infor-
mation therein is organized into four task- and theme-related
parts:
Basic Principles The Basic Principles section gives the ba-
sic knowledge that every user should have.
Normal Operation The Normal Operation section contains
information needed for operating the product under normal
conditions, i.e. undisrupted operation for use according to
its intended application.
Special Operations The Special Operations section de-
scribes all jobs deviating from normal operation, such as in-
stallation, initial start-up, maintenance, xing faults and do-
ing repairs.
Appendix The Appendix contains information that the user
has to be able to access at any time. This includes informa-
tion on using the operation manual (indexes) as well as data
concerning the product itself (technical data).
Aids for accessing information
This manual has access aids that make it easier for you to
quickly access the desired information:
• You can most easily nd all information on a given topic in
the Table of Contents, as a result of the task and theme-re-
lated organization of the operation manual.
• Information on a specic activity or a special topic can be
found most quickly through the Index.
• Within the chapters of the operation manual, you can ori-
ent yourself with the help of the margin notes.
1.2 Explanation of symbols
and signal words
Safety precautions are identied by symbols and signal
words dened on the right hand side of this page.
These signal words indicate the severity of the hazard.
Adhere to these safety precautions and take caution in order
to avoid accidents that may result in personal injuries or
damage to property.

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1.0 General information
1.3 Limitation of liability
All information and notes in this manual were compiled un-
der due consideration of valid standards and regulations,
the present status of technology and our years of knowledge
and experience. The manufacturer will not be liable for dam-
age resulting from:
• disregarding this manual
• unintended use
• employment of untrained personnel
• unauthorized conversions
• unauthorized technical modications
• manipulation or removal of the screws on the device.
Where the device has been customized, the actual product
delivered may be dierent from what is described in this
manual. In this case, ask Ewellix for any additional instruc-
tions or safety precautions relevant to these actuators.
We reserve the right to make technical modications to the
actuator to improve usability.
Validity
The instructions in this manual refer to the SCU control unit
with the following identication:
• Manufacturer: Ewellix
• Product name: SCU control unit
• Type designation: SCU1, SCU5, SCU9 (SCU4, SCU8 on re-
quest); ⮑ technical data chapter 3 and Appendix
chapter 11)
• Year of manufacture: from 2010
• CE-Mark: according technical documentation
• Serial number: from L04330000.
When the device has been customized by Ewellix, the actual
product delivered may be dierent from what is described in
the manual. In this case, ask Ewellix for any additional in-
structions or safety precautions relevant to these.
We reserve the right to make technical modications to the
device units to improve usability.
Target audience and obligation to read
The operating manual is intended for technical personnel
and authorized users who use the SCU control unit in their
products and work with them. The operating authority deter-
mines who is authorized as a user. We distinguish between
dierent user groups, as the requirements on the users vary,
depending on the activity they perform.
DANGER
Indicates a dangerous situation, which
will lead to death or serious personal
injury, if the precautionary measures are
ignored.
WARNING
Indicates a dangerous situation, which
can lead to minor or moderate injury or
property damage, if the precautionary
measures are ignored.
CAUTION
Indicates a dangerous situation, which
can lead to minor or moderate injury
the precautionary measures are ignored.
NOTICE
Indicates information considered
important, but not hazard-related (e.g.
messages relating to property damage).
NOTE
Emphasizes useful hints and
recommendations as well as information
for ecient and trouble-free operation.

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1.4 Copyright
This manual is protected by copyright law and to be used
exclusively by Ewellix customers internal purpose Passing
this manual on to third parties, duplication of any kind – even
in the form of excerpts – as well as the use and/or disclosure
of the contents without the written consent of the manufac-
turer is not permitted, except for internal purposes.
Violation of Ewellix’s copyright may become the subject of a
future claim for damages.
1.5 Spare parts
This control unit is not designed for repair work by the
owner/operator. All warranty and service claims are void if
repairs are not performed by the manufacturer or another
entity approved by the manufacturer.
Battery (underoor) with battery-charging-board: ZDV-
160208 (2x 12V/2.8Ah)
Ext. Battery charging box: ZDV-160207
Ext. Battery: ZDV160209 (2x 12V/4.5Ah)
Sealing stoppers for sockets “actuator outputs”:
ZDV-160307-0008
Sealing stoppers for socket “operating elements”:
ZDV-160308-0015.
Accessories:
Mains cable: 3pol Schuko ZKA-160637-3500
Mains cable: 3pol SEV ZKA-160638-3500
Mains cable: 3pol UL ZKA-160639-3500
Mains cable: 3pol UL hospital grade ZKA-160640-3500
Mains cable: 3pol UK ZKA-160609-3500.
WARNING
Safety hazard caused by wrong spare parts
Wrong or faulty spare parts can adversely aect safety and
cause damage, malfunctions or total failure.
Therefore:
• Use only genuine spare parts from the manufacturer.
• Spare parts in/on the device may only be replaced by the manu-
facturer.
If the device cannot be repaired on site by authorized per-
sonnel it must be dismantled and sent to the manufacturer.
1.6 Warranty terms
The warranty terms are included in the manufacturer’s terms
and conditions contained in the Ewellix sales contract that
governs this sale.
1.7 Customer service
Ewellix Customer Service is always available to provide
technical information and to answer questions. The contact
information for Ewellix Customer Service can be found on
www.ewellix.com.
In addition, our employees are always interested in acquiring
new information and experience gained from practical appli-
cation; such information and experience may help improve
our products.

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2.0 Safety
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2.0 Safety
This section provides an overview of important safety
aspects of installing, operating and maintaining this device.
Disregarding this manual and safety regulations specied
therein may result in considerable danger and possible
serious injury or death or damage to device or equipment.
The SCU control unit was designed and build in accordance
with the latest technical standards and accepted rules.
EU-Conformity is documented with the technical
documentation.
2.1 Use
2.1.1 Intended Use
The SCU control unit was designed and built in accordance
with the latest technical standards and accepted safety
rules.
The intended purpose is described in these instructions.
The authorized use of the SCU control unit is:
“Control up to six actuators for push- or pull loads”.
NOTICE
The control unit can only be parametrized for the actuators
of Ewellix. Please contact customer services to nd out
which actuators are approved for the SCU!
NOTE
For the operations data, please see the Appendix of this op-
erating manual.
If you use the SCU control unit for any use other that cited,
the manufacturer cannot be held the responsibility for defect
or damage resulting from this.
It is only intended for interior use and is implemented in
medical devices as well as in industrial and construction
technology.
Range of environmental conditions:
• Ambient temperature: 5°C to + 40 °C
• Relative humidity : 5% to 85%
• Atmospheric pressure: 700 hPa to 1060 hPa
• Use and operate at an altitude of 3000m (MOPP)
• Overvoltage category II
• Pollution degree classication 2.
2.1.1.1 Product life time
The SCU control unit is designed for a service life of 10
years or at least 100’000 cycles of operation per channel.
2.1.1.2 User groups
The organization and implementation of the operation man-
ual takes into account the dierent user groups
To ensure safety, we place requirements on the users of the
SCU control unit that must be adhered to under all circum-
stances. Only persons who meet the requirements are enti-
tled to use the SCU control unit.
We refer to all persons who operate, use, commission the
control unit, process it further or pass it on for further pro-
cessing as user groups. As the requirements of these user
groups strongly depend on their role, we distinguish be-
tween the following user groups:
The operating authority is the contractual partner of the
person doing the further processing or the reseller. They can
impose legal conditions on the operating authority when
purchasing the control unit. The operating authority ensures
that the user is instructed in the authorized use of the
equipment.
The processor is the contractual partner of the reseller or
the manufacturer. He assembles the control unit into a total
device. He is authorized by the manufacturer of the SCU
control unit to use the control unit in accordance with the
regulations and has the necessary expert knowledge.
The technician has the professional technical training to
implement the SCU control unit according to its authorized
use. Apart from the chapter on Safety, he is also familiar
with the chapter on Special operating modes. He will nd
the required technical data in the Appendix.
The reseller forwards the machine. Every other person who
uses the SCU control unit we dene as an operator. The
operator must have read the Safety chapter in this manual
before using the machine. Moreover, he must be instructed
about the normal operation by the operating authority.
2.1.1.3 Types of operation
The SCU control unit is exclusively intended for intermittent
operation (⮑ Technical data, page 43).
2.1.1.4 Danger zones
We dierentiate between two danger zones that must be
observed, depending on user role.

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Control unit - SCU
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The danger zone covering persons includes, aside from the
actual user, third persons as well (other personnel, visitors,
patients etc.) In case of injury, the operating authority is
responsible.
The danger zone device comes under the user group
Executor and Technician and covers the SCU control unit
and all the mounted-on elements.
2.1.2 Unintended Use
Any use other that the intended use, or modications to the
device without the manufacturer’s written agreement, or
operation beyond the technical limits, is considered
unauthorized.
See technical operating limits in the technical data of this
manual and on the label of the SCU.
NOTE
Any unauthorized use of the device can cause personal injury
and property damage. Always adhere to the instructions given in
this manual.
The SCU control unit is suitable only for internal use and
must not be subjected to weathering, strong UV radiation or
explosive atmospheric media. Specic application exemp-
tions are:
• Flammable anesthetic mixture with air
• Flammable anesthetic mixture with oxygen or nitrous oxide
• Increased radiation.
WARNING
Risk from misuse
Any utilization of this device beyond its intended purpose may
lead to potentially hazardous situations.
Therefore:
• Strictly adhere to all safety precautions and instructions in this
operating manual.
• Do not make this device subject to weather conditions, strong UV
rays, corrosive or explosive air media as well as other aggressive
media.
• Do not modify, retool or change the structural design or individual
components of the actuator.
• Never use the device outside of the technical application and op-
erational limits.
2.1.3 Essential performance
Supply electromechanical actuators / pillars by command.
2.2 Responsibility of the
owner and processor
The device is designed for commercial applications by its
owner or processor. The processor is the contracting part-
ner of the reseller or the manufacturer. The processor in-
stalls the device in a complete system (application).
The owner or processor of the system is therefore subject to
the requirements of the Occupational Health and Safety Act.
In addition to the safety instructions in this manual, the
owner or processor must do the following concerning these
safety and accident prevention guidelines and environmental
protection regulations applicable to the site of the system’s
installation:
• Inform themselves of applicable industrial safety regula-
tions. They must also determine additional hazards that
arise due to the specic working conditions prevailing at
the site where the device is installed using risk assess-
ment. The risk assessment must be implemented in the
form of work instructions for device operation.
• Conrm that the work instructions created for the system,
including the device satisfy current legal requirements and
must alter the instructions accordingly.
• Clearly regulate and specify the responsibilities for instal-
lation, operation, maintenance, and cleaning.
• Ensure that all employees who deal with the device have
read and understood this manual.
• Provide personnel with the required protective equipment.
• Provide training for personnel at regular intervals and in-
form personnel of the hazards.
In addition, the owner or processors must ensure that the
device is in adequate working condition. They must do the
following:
• Ensure that the maintenance intervals described in these
instructions are complied with.
• Have all safety devices inspected regularly for function and
completeness.
Areas of responsibility
Dierent areas of responsibility, corresponding to the dier-
ent user groups, arise.
The Operating Authority has the responsibility for the danger
zone covering persons and ensures that only authorized and
instructed users work with the SCU control unit. He or she is
responsible for the following:
• Determining the persons who may use the SCU control
unit (authorized persons).
• Instruction of the users.
• Complying with all relevant legal conditions and regula-
tions.

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2.0 Safety
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NOTICE
The Operating Authority may only authorize such persons for
using the SCU control unit, who conform to the requirements for
the user roles.
The processor is responsible for:
• Generation of a CE-conformant operation manual of the
device in which the SCU control unit has been integrated.
• Adherence to the safety regulations in accordance with
this operating manual.
The technician is responsible for:
• Observing the manufacturer’s instructions and the safe-
set-up of interfaces with other equipment.
• Installation and use of the SCU control unit in accordance
with its intended purpose-conformant use.
• Installation of optional modules and connecting cables.
The reseller is responsible for:
• Passing on this operating manual and the SCU control unit
to the executor.
• Passing on of a CE-conformant operating manual and the
device in which the SCU control unit has been integrated
to the Operating Authority.
The operator is responsible for:
• Ensures that nobody is endangered owing to the operation
of the SCU control unit.
• Operation of the SCU control unit in normal operation.
• Immediate and appropriate reaction to malfunctions.
2.3 Personnel
requirements
WARNING
lmproper installation, operation and maintenance can result
in serious injury, death or property damage.
Use only qualied, instructed, or trained personnel (as described
below) who have read, understand and follow these instructions.
2.3.1 Qualications
The following qualications are specied for dierent areas
of activity listed in this manual:
• An instructed person (operator): Instructed by the cus-
tomer in an orientation session on the assigned tasks and
possible dangers arising from in case of improper behav-
ior.
• Qualied personnel: Based on their professional training,
know-how and experience as well as knowledge of the ap-
plicable standards and regulations are able to inde-
pendently perform assigned work activities and to detect
and avoid possible dangers.
• Professional electrician: Based on his/her professional
training, know-how and experience as well as knowledge
of the applicable standards and regulations is able to inde-
pendently perform work on electrical systems and to de-
tect and avoid possible dangers.
In addition, the professional electrician has been trained
for the special location where he/she works and knows the
relevant standards and regulations.
Only persons who can be expected to perform their tasks
reliably are permitted as personnel. Persons whose reaction
capabilities are impaired, e.g. through the use of drugs, al-
cohol or medication for example, are not permitted.
2.4 Specic dangers
The manufacturer has constructively, and with protective
measures, minimized the eects of existing hazards. Pay at-
tention to the residual hazards and potential countermeas-
ures described and the warnings in the following chapters.
2.4.1 Residual hazards to people, objects
and property
Keep in mind the following residual dangers and the possi-
ble countermeasures in handling the SCU control unit.
DANGER
Danger to life caused by electric current.
Touching conductive parts causes a direct danger to life.
Damage to insulation or individual components can cause
danger to life.
Therefore:
• In the event of damage to insulation, switch o the power supply
immediately and have the defective parts repaired.
• Work on the electrical system must he carried out only by skilled
electricians.
• De-energize the machine for all work on the electrical system.
• Before maintenance, cleaning or repair work, switch o the power
supply and perform lockout procedures so it cannot he turned on
again.
• Do not bridge fuses or make them ineective. When changing
fuses, make sure you use the correct amperage.
• Keep moisture away from conductive parts. If you do not, this can
cause short circuit.

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Control unit - SCU
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WARNING
Electrical shack hazard
Check the mains voltage corresponds to the nominal values on
the product label.
• Ensure that power cables cannot become pinched or damaged.
• Warning regarding electrical shock owing to damaged plugs or da-
maged network cables. Never touch a damaged network plug or a
damaged network cable when the SCU control unit is running,
since the SCU control unit is supplied with 120 VAC or 230 VAC.
• Ensure, before you pull a defective plug out of the plug socket,
that the SCU control unit is disconnected from the power supply.
WARNING
Unintended, uncontrollable movement
• Due to a defect of a component, an uncontrollable movement of
the connected actuator[s) can occur.
• In worst case RAM or ROM failure can lead to a false or auto mo-
tion. This kind of failure has a low failure probability and it occurs
in such a way that a motion is started.
• If the button of the hand switch sticks when releasing it and the
user doesn't press the button for the opposite direction (⮑
chapter 7.3) then an auto motion occurs.
WARNING
Specic dangers during cleaning or washing the control unit
SCU
The control units are designed to comply with IPX4.
The cleaning or washing with water including chemical additives
must be pH-neutral. Excessively acidic or alkaline washing water
can destroy metal and plastic components of the control unit.
Manually and mechanically operated high-pressure steam
cleaners must not be used. Only isopropyl alcohol cleaning
agent may be used for disinfecting by manual wiping.
A SCU control unit must never be washed in a washing machine
or other equipment. The control unit would be destroyed by the
penetration of liquid.
The plastic housing must be checked periodically (every six
months) for mechanical damage (cracks).
WARNING
Injury due to cracks and related openings in the housing of the
actuator and/or its accessories:
If the housing is damaged due to stock, breakage or heavy wear,
stop using the device and follow the dismantling instructions.
CAUTION
Please be aware of damage to people or property as the result of
incorrect operation. Incorrect operation can endanger people in
the danger zone or objects.
• Before pressing a button on the operating device, ensure that you
press the right button.
• Take appropriate measures to ensure that the operating device
cannot be operated.
CAUTION
No function is considered as a safe condition.
CAUTION
The SCU control unit is only suitable for interior applications
and must not be subjected to weathering, strong UV radiation or
corrosive or explosive air (⮑ Ambient conditions).
The SCU control unit may only be operated when the safety
protective cover (⮑ g 8) is mounted.
CAUTION
Failure of the control unit due to interruption to the mains power
or an electronic defect should not pose any hazard to the
patient, to the operator or to the servicing personnel.
Ewellix actuators should be operated in accordance with the
application specied on the type label.
The nominal data for the actuators and the control unit must be
veried at the same time of installation. The ratings on the data
should not be exceeded. If this information is disregarded, the
actuator and the control unit will be damaged irreparably. Risk of
personal injury remains.
CAUTION
Any overload on the control unit will trip a temperature switch
in the mains transformer. After cooling of the transformer, the
thermal protector will reset, so the control unit SCU is ready
again to control the actuators.
CAUTION
Electric shock hazard
Take care about damage to the SCU from water sprays. The
control unit SCU is splash-proofed according to IPX4. Prevent
the SCU from being subjected to water sprays or hosing during
the operation time.
NOTICE
Prolonged overload will result in irreparable damage to the
control unit.
2.4.2 Specic dangers SCU with
batteries
Replacement batteries should only be ordered from Ewellix,
since they are a special type. The old batteries must be
properly disposed of. The user’s maintenance personnel
must be given instructions by the ultimate manufacturer on
opening and closing the battery compartment lid and on re-
placing the batteries.
WARNING
If unintended movements can cause serious injury, additional
protective means must be installed to stop or avoid such
movements.
WARNING
Disconnection from the mains power supply will not prevent
movement of the actuators in case of an electric defect while
batteries are connected.