BONFIGLIOLI ACTIVE CUBE Series User manual

Liquid cooling
Complement to the operating instructions
Frequency inverters ACTIVE CUBE
Frequency inverters ACTIVE NEXT GENERATION
Mains unit AEC

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TABLE OF CONTENTS
1General Information about the Documentation ............................................... 5
1.1 This document........................................................................................ 5
1.2 Warranty and liability ............................................................................ 5
1.3 Obligation .............................................................................................. 6
1.4 Copyright ............................................................................................... 6
1.5 Storage................................................................................................... 6
2General safety instructions and information on use......................................... 6
2.1 Designated use....................................................................................... 6
2.2 Misuse .................................................................................................... 7
2.3 Residual risks......................................................................................... 7
2.4 Safety and warning signs on device....................................................... 8
2.5 Warning information and symbols used in the Operating Instructions . 8
2.5.1 Hazard classes ..............................................................................................8
2.5.2 Hazard symbols.............................................................................................8
2.5.3 Prohibition signs............................................................................................8
2.5.4 Personal safety equipment .............................................................................9
2.5.5 Recycling ......................................................................................................9
2.5.6 Grounding symbol .........................................................................................9
2.5.7 ESD symbol...................................................................................................9
2.5.8 Information signs ..........................................................................................9
2.5.9 Font style in documentation ...........................................................................9
2.6 Directives and guidelines to be adhered to by the operator .................. 9
2.7 Operator's general plant documentation ............................................. 10
2.8 Operator's/operating staff's responsibilities ....................................... 10
2.8.1 Selection and qualification of staff.................................................................10
2.8.2 General work safety.....................................................................................10
2.8.3 Ear protectors .............................................................................................10
2.9 Organizational measures ..................................................................... 10
2.9.1 General ......................................................................................................10
2.9.2 Use in combination with third-party products .................................................10
2.9.3 Handling and installation..............................................................................11
2.9.4 Electrical connections...................................................................................11
2.9.4.1 The five safety rules ................................................................................................. 11
2.9.5 Safe operation.............................................................................................11
2.9.6 Maintenance and service/troubleshooting ......................................................12
2.9.7 Final decommissioning .................................................................................13

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2.10 Safety Instructions on Function “Safe Torque Off” (STO).................... 13
3Device identification....................................................................................... 15
3.1 Identifier structure .............................................................................. 15
3.2 Available devices.................................................................................. 15
3.3 Cooling and installation types by assemblies....................................... 16
3.4 Storage................................................................................................. 16
4Technical data ................................................................................................ 16
4.1 General technical data ......................................................................... 16
4.2 Technical data - Liquid Cooling, general .............................................. 16
4.3 Technical data - Liquid Cooling, assembly-specific .............................. 17
4.4 Hydrological data ................................................................................. 17
4.5 Operation diagrams ............................................................................. 18
5Mechanical installation................................................................................... 19
5.1 Size 5 (liquid-cooled) ........................................................................... 20
5.2 Size 6 (liquid-cooled) ........................................................................... 22
5.3 Size 7 and 8 (liquid-cooled) ................................................................. 23
6Coolant connection......................................................................................... 24
6.1 Size 6 ................................................................................................... 24
6.2 Size 7 ................................................................................................... 25
6.3 Size 8 ................................................................................................... 25
6.4 Protection of heat sink against condensation ...................................... 27
6.4.1 Supply of temperature-controlled coolant ......................................................27
6.4.2 Coolant supply control .................................................................................28
6.5 Measures against soiling of coolant and frost...................................... 28
7Electrical installation ...................................................................................... 29
8Commissioning of frequency inverter............................................................. 29
9Maintenance ................................................................................................... 29

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1General Information about the Documentation
The present documentation was prepared with great care and it was subjected to extensive and re-
peated reviews. For reasons of clarity, it was not possible to include all details of all types of the product
in the documentation. Neither was it possible to consider all conceivable installation, operation or
maintenance situations. If you require further information or if you meet with specific problems which
are not dealt with in sufficient detail in the documentation, contact your local BONFIGLIOLI agent.
The present document was created in German. Other language versions are translations.
1.1 This document
This document complements the applicable Operating Instructions by providing information on assem-
bly, installation, commissioning and operation of liquid-cooled devices.
Compliance with this document contributes to avoiding risks, minimizing repair cost and downtimes and
increasing the reliability and service live of the device.
Read this document and the relevant Operating Instructions of the device carefully.
IMPORTANT:
Compliance with the documentation is required to ensure safe operation of the frequency
inverter. Bonfiglioli Vectron MDS GmbH shall not be held liable for any damage caused by
any non-compliance with the documentation.
In case any problems occur which are not covered by the documentation sufficiently, please
contact the manufacturer.
This document contains additional information on liquid-cooled frequency inverters and mains units (in
the following referred to as: devices) of the following series of devices:
ACU 401
ACU 410 / 510 / 610
ANG 410 / 510 / 610
AEC 401
1.2 Warranty and liability
Bonfiglioli Vectron MDS GmbH would like to point out that the contents of these Operating Instructions
do not form part of any previous or existing agreement, assurance or legal relationship. Neither are
they intended to supplement or replace such agreements, assurances or legal relationships. Any obli-
gations of the manufacturer shall solely be based on the relevant purchase agreement which also in-
cludes the complete and solely valid warranty stipulations. These contractual warranty provisions are
neither extended nor limited by the specifications contained in this documentation.
The manufacturer reserves the right to correct or amend the specifications, product information and
omissions in these operating instructions without notice. The manufacturer shall not be liable for any
damage, injuries or costs which may be caused by the aforementioned reasons.

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Furthermore, Bonfiglioli Vectron MDS GmbH excludes any warranty/liability claims for any personal
and/or material damage if such damage is due to one or more of the following causes:
inappropriate use of the device,
non-compliance with the instructions, warnings and prohibitions contained in the documentation,
unauthorized modifications of the device,
insufficient monitoring of parts of the machine/plant which are subject to wear,
repair work at the machine/plant not carried out properly or in time,
catastrophes by external impact and force majeure.
1.3 Obligation
The Operating Instructions and this additional information must be read before commissioning liquid-
cooled devices and complied with. Anybody entrusted with tasks in connection with the
transport,
assembly,
installation and
operation
of the device must have read and understood the Operating Instructions and additional information on
liquid cooling, and especially the safety instructions. In this way, personal and material damage/losses
can be avoided.
1.4 Copyright
In accordance with applicable law against unfair competition, this document is a certificate. Any copy-
rights relating to it shall remain with
Bonfiglioli Vectron MDS GmbH
Europark Fichtenhain B6
47807 Krefeld
Deutschland
This document is intended for the operator of the device. Any disclosure or copying of this document,
exploitation and communication of its contents (as hardcopy or electronically) shall be forbidden, unless
permitted expressly.
Any non-compliance will constitute an offense against the copyright law dated 09 September 1965, the
law against unfair competition and the Civil Code and may result in claims for damages. All rights relating
to patent, utility model or design registration reserved.
1.5 Storage
The documentation forms an integral part of the device. It must be stored such that it is accessible to
operating staff at all times. If the device is sold on to other users, then the documentation must also be
handed over.
2General safety instructions and information on use
The chapter 2 "General safety instructions and information on use" contains general safety instructions
for the Operator and the Operating Staff. At the beginning of certain main chapters, some safety in-
structions are included which apply to all work described in the relevant chapter. Special work-specific
safety instructions are provided before each safety-relevant work step.
2.1 Designated use
The frequency inverter is designed according to the state of the art and recognized safety regulations.
The frequency inverters are electrical drive components intended for installation in industrial plants or
machines. Commissioning and start of operation is not allowed until it has been verified that the machine
meets the requirements of the EC Machinery Directive 2006/42/EC and DIN EN 60204-1.

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The frequency inverters meet the requirements of the low voltage directive 2006/95/EEC and DIN
EN 61800-5-1. CE-labeling is based on these standards. Responsibility for compliance with the EMC
Directive 2004/108/EC lies with the operator. Frequency inverters are only available at specialized deal-
ers and are exclusively intended for commercial use as per EN 61000-3-2.
No capacitive loads may be connected to the frequency inverter.
The technical data, connection specifications and information on ambient conditions are indicated on
the rating plate and in the documentation and must be complied with in any case.
2.2 Misuse
Any use other than that described in "Designated use" shall not be permissible and shall be considered
as misuse.
For, example, the machine/plant must not be operated
by uninstructed staff,
while it is not in perfect condition,
without protection enclosure (e.g. covers),
without safety equipment or with safety equipment deactivated,
when general requirements, such as operating conditions and technical data, are not met.
The manufacturer shall not be held liable for any damage resulting from such misuse. The sole risk shall
be borne by the operator.
2.3 Residual risks
Residual risks are special hazards involved in handling of the frequency inverter which cannot be elimi-
nated despite the safety-compliant design of the device. Residual risks are not obviously identifiable and
can be a potential source of injury or a health hazard.
Typical residual hazards include:
Electrical hazard
Danger of contact with energized components due to a defect, opened covers or enclosures or
improper working on electrical equipment.
Danger of contact with energized components in frequency inverter if no external disconnec-
tion device was installed by the operator.
During operation, all covers must be installed correctly, and all electrical cabinet doors must be closed
to minimize electrical hazards.
When LEDs and other indicating elements on the frequency inverter go out, this does not necessarily
mean that the device is deenergized. Before carrying out any work on the device where contact with
energized parts might be possible, it must be checked in any case, i.e. irrespective of the status of any
indicating elements that may be installed, if the device is deenergized.
Charged capacitors in DC link
Sizes 1 through 7 (up to 132 kW): The DC-link may have dangerous voltage levels even up to 3 minutes
after shutdown.
Size 8 (as from 160 kW): The DC-link may have dangerous voltage levels even up to 8 minutes after
shutdown.
Electrostatic charging
Touching electronic components entails the risk of electrostatic discharges.
Thermal hazards
Risk of accidents by hot machine/plant surfaces, e.g. heat sink, transformer, fuse or sine filter.
Danger of equipment falling down/over, e.g. during transport
Center of gravity may not lie in the middle of the electrical cabinet modules.

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2.4 Safety and warning signs on device
Comply with all safety instructions and danger information provided on the device.
Safety information and warnings on the device must not be removed.
2.5 Warning information and symbols used in the Operating Instruc-
tions
2.5.1 Hazard classes
The following hazard identifications and symbols are used in the Operating Instructions to mark par-
ticularly important information:
DANGER
Identification of immediate threat holding a high risk of death or serious injury if not
avoided.
WARNING
Identification of immediate threat holding a medium risk of death or serious injury if not
avoided.
CAUTION
Identification of immediate threat holding a low risk of minor or moderate physical injury
if not avoided.
NOTICE
Identification of a threat holding a risk of material damage if not avoided.
2.5.2 Hazard symbols
Symbol
Meaning
Symbol
Meaning
General hazard
Suspended load
Electrical voltage
Hot surfaces
Danger of crushing
2.5.3 Prohibition signs
Symbol
Meaning
No switching; it is forbidden to switch
the machine/plant, assembly on

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2.5.4 Personal safety equipment
Symbol
Meaning
Wear body protection
Wear ear protectors
2.5.5 Recycling
Symbol
Meaning
Recycling, to avoid waste, collect all
materials for reuse
2.5.6 Grounding symbol
Symbol
Meaning
Ground connection
2.5.7 ESD symbol
Symbol
Meaning
ESD: Electrostatic Sensitive Devices,
i.e. components and assemblies sensi-
tive to electrostatic energy
2.5.8 Information signs
Symbol
Meaning
Tips and information making using the
frequency inverter easier.
2.5.9 Font style in documentation
Example
Font style
Use
1234
bold
Representation of parameter numbers
Parameter
inclined,
font: Times New Ro-
man
Representation of parameter names
P.1234
bold
Representation of parameter numbers without name, e.g. in formulas
Q.1234
bold
Representation of source numbers
2.6 Directives and guidelines to be adhered to by the operator
The operator must follow the following directives and regulations:
Ensure that the applicable workplace-related accident prevention regulations as well as other ap-
plicable national regulation are accessible to the staff.
An authorized person must ensure, before using the frequency inverter, that the device is used in
compliance with its designated use and that all safety requirements are met.
Additionally, comply with the applicable laws, regulations and directives of the country in which
the frequency inverter is used.
For liquid cooled frequency inverters, comply with the cooling water guideline VGB-R 455 P.
Any additional guidelines and directives that may be required additionally shall be defined by the
operator of the machine/plant considering the operating environment.

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2.7 Operator's general plant documentation
In addition to the Operating Instructions, the operator should issue separate internal user manu-
als for the frequency inverter. The Operating Instructions of the frequency inverter must be in-
cluded in the Operating Instructions of the whole plant.
2.8 Operator's/operating staff's responsibilities
2.8.1 Selection and qualification of staff
Any work on the frequency inverter may only be carried out by skilled personnel. The staff must
not be under the influence of any drugs. Note the minimum age required by law. Define the staff's
responsibility pertaining to all work on the frequency inverter clearly.
Work on the electrical components may only be performed by a qualified electrician according to
the applicable rules of electrical engineering.
The operating staff must be trained for the relevant work to be performed.
2.8.2 General work safety
In addition to the Operating Instructions of the machine/plant, any applicable legal or other regu-
lations relating to accident prevention and environmental protection must be complied with. The
staff must be instructed accordingly.
Such regulations and/or requirements may include, for example, handling of hazardous media and
materials or provision/use of personal protective equipment.
In addition to this Operating Instructions, issue any additional directives that may be required to
meet specific operating requirements, including supervision and reporting requirements, e.g. di-
rectives relating to work organization, workflow and employed staff.
Unless approved of expressly by the manufacturer, do not modify the frequency inverter in any
way, including addition of attachments or retrofits.
Only use the frequency inverter if the rated connection and setup values specified by the manu-
facturer are met.
Provide appropriate tools as may be required for performing all work on the frequency inverter
properly.
2.8.3 Ear protectors
The frequency inverter produces noise. Due to noise development, frequency inverters should
only be installed in normally unstaffed areas.
Noise emission in operation is < 85 dB(A) in the case of sizes 1 through 7.
Noise emission in operation is approx. 86 dB(A) in the case of size 8. Ear protectors must be used
when staying near the frequency inverter.
2.9 Organizational measures
2.9.1 General
Train your staff in the handling and use of the frequency inverter and the machine/plant as well
as the risks involved.
Use of any individual parts or components of the frequency inverter in other parts of the opera-
tor's machine/plant is prohibited.
Optional components for the frequency inverter must be used in accordance with their designated
use and in compliance with the relevant documentation.
2.9.2 Use in combination with third-party products
Please note that Bonfiglioli Vectron MDS GmbH will not accept any responsibility for compatibility
with third-party products (e.g. motors, cables or filters)..
In order to enable optimum system compatibility Bonfiglioli Vectron MDS GmbH offers compo-
nents facilitating commissioning and providing optimum synchronization of the machine/plant
parts in operation.

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If you use the frequency inverter in combination with third-party products, you do so at your own
risk.
2.9.3 Handling and installation
Do not commission any damaged or destroyed components.
Prevent any mechanical overloading of the frequency inverter. Do not bend any components and
never change the isolation distances.
Do not touch any electronic construction elements and contacts. The frequency inverter is
equipped with components which are sensitive to electrostatic energy and can be damaged if han-
dled improperly. Any use of damaged or destroyed components will endanger the machine/plant
safety and shall be considered as non-compliance with the applicable standards.
Only install the frequency inverter in a suitable operating environment. The frequency inverter is
exclusively designed for installation in industrial environments.
If seals are removed from the case, this can result in the warranty becoming null and void.
2.9.4 Electrical connections
The five safety rules must be complied with.
Never touch live terminals. In sizes 1 through 7, the DC-link may have dangerous voltage levels
up to 3 minutes after shutdown. In size 8, the DC-link may have dangerous voltage levels up to 8
minutes after shutdown.
When performing any work on/with the frequency inverter, always comply with the applicable na-
tional and international regulations/laws on work on electrical equipment/plants of the country in
which the frequency inverter is used.
The cables connected to the frequency inverters may not be subjected to high-voltage insulation
tests unless appropriate circuitry measures are taken before.
Only connect the frequency inverter to suitable supply mains. The frequency inverter may be op-
erated in TN, TT and IT grid types. Precautions must be taken for operation in IT grids, see Chap-
ter 7 "Electrical installation". Operation in a corner-grounded TN grid shall not be permissible.
2.9.4.1 The five safety rules
When working on/in electrical plants, always follow the five safety rules:
1Isolate
2Secure to prevent restarting
3Check isolation
4Earth and short-circuit
5Cover or shield neighboring live parts
2.9.5 Safe operation
During operation of the frequency inverter, always comply with the applicable national and inter-
national regulations/laws on work on electrical equipment/plants.
Before commissioning and the start of the operation, make sure to fix all covers and check the
terminals. Check the additional monitoring and protective devices according to the applicable na-
tional and international safety directives.
During operation, all covers must be installed correctly, and all electrical cabinet doors must be
closed. During operation, never open the machine/plant.
No connection work shall be carried out while power supply is on.
The machine/plant holds high voltage levels during operation, is equipped with rotating parts
(fan) and has hot surfaces. Any unauthorized removal of covers, improper use, wrong installation
or operation may result in serious injuries or material damage.
Some components, e.g. the heat sink or braking resistor, may be hot even some time after the
machine/plant was shut down. Don't touch any surfaces directly after shutdown. Wear safety
gloves where necessary.
The frequency inverter may hold dangerous voltage levels until the capacitor in the DC link is dis-
charged. After shutdown, wait for at least 3 minutes (sizes 1 through 7) and at least 8 minutes

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(size 8) before starting any electrical or mechanical work on the frequency inverter. Even after
this waiting time, make sure that the equipment is deenergized in accordance with the safety
rules before starting the work.
In order to avoid accidents or damage, only skilled personnel and electricians may carry out the
work such as installation, commissioning or setup.
In the case of a defect of terminals and/or cables, immediately disconnect the frequency inverter
from mains supply.
Persons not familiar with the operation of the frequency inverter and children must not have ac-
cess to the device.
Do not bypass nor decommission any protective devices.
The frequency inverter may be connected to power supply every 60 s. This must be considered
when operating a mains contactor in jog operation mode. For commissioning or after an emer-
gency stop, a non-recurrent, direct restart is permissible.
After a failure and restoration of the power supply, the motor may start unexpectedly if the Auto-
Start function is activated.
If staff are endangered, a restart of the motor must be prevented by means of external circuitry.
Before commissioning and the start of the operation, make sure to fix all covers and check the
terminals. Check the additional monitoring and protective devices according to EN 60204 and ap-
plicable the safety directives (e.g. Working Machines Act or Accident Prevention Directives).
2.9.6 Maintenance and service/troubleshooting
Visually inspect the frequency inverter when carrying out the required maintenance work and in-
spections at the machine/plant.
Perform the maintenance work and inspections prescribed for the machine carefully, including the
specifications on parts/equipment replacement.
Work on the electrical components may only be performed by a qualified electrician according to
the applicable rules of electrical engineering. Only use original spare parts.
Unauthorized opening and improper interventions in the machine/plant can lead to personal injury
or material damage. Any repair work may only be carried out by the manufacturer or persons ap-
proved/licensed by the manufacturer. Any repair work must be carried out by qualified electri-
cians. Check protective equipment regularly.
Before performing any maintenance work, the machine/plant must be disconnected from mains
supply and secured against restarting. The five safety rules must be complied with.

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2.9.7 Final decommissioning
Unless separate return or disposal agreements were made, recycle the disassembled frequency inverter
components:
Scrap metal materials
Recycle plastic elements
Sort and dispose of other component materials
Electric scrap, electronic components, lubricants and other utility materials must be
treated as special waste and may only be disposed of by specialized companies.
In any case, comply with any applicable national disposal regulations as regards environ-
mentally compatible disposal of the frequency inverter. For more details, contact the
competent local authorities.
2.10 Safety Instructions on Function “Safe Torque Off” (STO)
The function „Safe Torque Off“ (STO) is a functional safety feature, i.e. it protects staff from damage,
provided that projecting, installation and operation are performed properly. This function does not dis-
connect the plant from power supply.
In order to disconnect the plant from power supply (e.g. for maintenance work), an "Emergency Stop"
provision as per EN 60204 must be installed.
WARNING
Uncontrolled Starting
Improper installation of the safety circuitry may result in uncontrolled starting of the
drive. This may cause serious injuries and significant material damage or death.
Safety functions may only be installed and commissioned by skilled personnel.
The STO function is not suitable for emergency stop as per EN 60204. An emergency
stop can be realized by installing a mains contactor.
An emergency stop according to EN 60204 must be functioning in all operation modes of
the frequency inverter. Resetting of an emergency stop must not result in uncontrolled
starting of the drive.
The drive is started again when the function STO is no longer triggered.
Without a mechanical brake, the drive will not stop immediately but coast to a standstill.
If this might result in personal or material damage, additional safety measures must be
taken.
If persons may be endangered after disconnection of the motor power supply by
STO, prevent access to the hazard areas until the drive has stopped.
Check the safety function at regular intervals according to the results of your risk
analysis. Bonfiglioli Vectron MDS GmbH recommends that the check be performed
after one year, at the latest.
The STO function is fail-safe. However, on rare occasions, the occurrence of component
defects may cause jerking of the motor shaft (max. 180°/pole pair, e. g. jerk by 90° with
4-pole motor, 180°/2).
Check if this causes a dangerous movement of the machine.
If the STO function is used, the special safety, installation and instructions on use
instructions shall be complied with.

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WARNING!
Dangerous voltage!
The safety function “Safe Torque Off” may only be used if mechanical work is to be
performed on the driven machines, not for work on live components.
After disconnection of an external DC 24 V power supply, the DC link of the frequency
inverter is still connected to mains supply.
Even if power supply to the motor is disconnected, and the motor is coasting to a standstill
or has already stopped, high voltages may still be present on the motor terminals.
Before working (e. g. maintenance) on live parts, the plant must always be disconnected
from mains supply (main switch). This must be documented on the plant.
When the function “Safe Torque Off” is triggered, the motor is not isolated from the DC
link of the frequency inverter. High voltage levels may be present at the motor.
Do not touch live terminals.
The application manual "Safe Torque Off STO" must be complied with, particularly if the
safety function described there is used.

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3Device identification
3.1 Identifier structure
Type key
1
Device series, e.g. ACU401
2
Identifier depending on rated power , e.g. -33
3
Device Size, e.g. 6
(only specified for device series Axx410/510/610)
4
Cooling and installation code, e.g. L for liquid cooling
3.2 Available devices
1
2
3
Device series
Type identifier
Size1)
ACU401 / AEC401
-27...-49
-
ACU410
-27...-61
5...8
ACU510
-51...-61
8
ACU610
-51...-61
8
ANG410
-27...-61
5...8
ANG510
-51...-61
8
ANG610
-51...-61
8
AEC410
-27...-61
5...8
AEC510
-51...-61
8
AEC610
-51...-61
8
1) only specified in type key for device series Axx410/510/610
1
4
Device series
Cooling and
Installation method
ACU401 / AEC401
L:
stainless steel, open cooling circuit (Size 5…8)
standard installation
ACU401 / AEC401
N2):
stainless steel, open cooling circuit (Size 7, 8)
through-hole installation
ACU410
ACU510
ACU610
L:
stainless steel, open cooling circuit (Size 5…8)
standard installation
M:
aluminum, closed cooling circuit (Size 8)
standard installation
N2):
stainless steel, open cooling circuit (Size 7, 8)
through-hole installation
O:
aluminum, closed cooling circuit (Size 8)
through-hole installation
ANG410
ANG510
ANG610
L:
stainless steel, open cooling circuit (Size 5…8)
standard installation
M:
aluminum, closed cooling circuit (Size 8)
standard installation
N2):
stainless steel, open cooling circuit (Size 7, 8)
through-hole installation
O:
aluminum, closed cooling circuit (Size 8)
through-hole installation
AEC410
AEC510
AEC610
L:
stainless steel, open cooling circuit (Size 5…8)
standard installation
M:
aluminum, closed cooling circuit (Size 8)
standard installation
N2):
stainless steel, open cooling circuit (Size 7, 8)
through-hole installation
O:
aluminum, closed cooling circuit (Size 8)
through-hole installation
2) designation “N” only for size 7 and size 8 devices

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3.3 Cooling and installation types by assemblies
L
M
N
O
Size 5
x
Size 6
x
Size 7
x
x
Size 8
x
x
x
x
L, N: stainless steel, open cooling circuit, standard installation
M: aluminum, closed cooling circuit, standard installation
N: stainless steel, open cooling circuit, through-hole installation
O: aluminum, closed cooling circuit, through-hole installation
3.4 Storage
NOTICE
Damage caused by incorrect storage
Wrong or inappropriate storage may result in damage, e.g. due to moisture and dirt.
Avoid major temperature variations and high air humidity.
During storage, protect the device against moisture and dirt.
The frequency inverters must be stored in an appropriate way. During storage, the devices must
remain in their original packaging.
The units may only be stored in dry rooms which are protected against dust and moisture and are
exposed to small temperature deviations only. The requirements of DIN EN 60721-3-1 for storage,
DIN EN 60721-3-2 for transport and labeling on the packaging must be met.
The duration of storage without connection to the permissible nominal voltage may not exceed
one year. After one year of storage, connect the device to mains voltage for 60 minutes.
NOTICE
Damage due to incorrect transportation
Liquid cooled devices may be transported only with the heat sink completely drained of
the coolant.
Use compressed air to drain the heat sink radiator.
4Technical data
4.1 General technical data
For the general technical data of your device, refer to the relevant Operating Instructions.
4.2 Technical data - Liquid Cooling, general
Cooling circuit
Aluminum design: suitable for closed cooling circuits only
Stainless steel design: suitable for open and closed cooling circuits
Coolant quality
according to Coolant Directive VGB-R 455 P,
hydrological data, see Chapter 4.4 "Hydrological data"
Coolant line connection
Connection with threaded lock or PTFE sealing tape, ½” internal thread
Coolant temperature (in)
5 … 45°C, typical value: 25°C
Coolant temperature (in) for
open cooling circuit size 8 de-
vices
5 … 35°C
Coolant temperature (out)
< 60°C

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4.3 Technical data - Liquid Cooling, assembly-specific
Unit
Size 5
Size 6
Size 7
Size 8
Size 8
Material
Stainless
steel
Stainless
steel
Stainless
steel
Aluminum
Stainless
steel
Coolant flow
rate
dm3/
min
min.
3
3
5
6
15
nom.
6
6
8
8
20
max.
10
10
10
12
30
coolant pres-
sure
bar
min.
1.5
1.5
1.5
1.5
1.5
nom.
3
3
3
3
3
max.
8
8
8
4
4
Pressure drop
in heat sink
bar
<0.5
<0.5
<0.5
<1
<1
4.4 Hydrological data
NOTICE
Device damage
Do not use distilled water. The max. concentration of frost protection agent must not
exceed the following values:
30% in the case of stainless steel design
50% other
Stainless steel
Aluminum
Unit
Value
Value
pH value
-
7.0 … 8.5
Carboxylic acid
mmol/dm3
0.2 … 3.2
0.5 … 1.4
free carbonic acid
mg/dm3
1 … 100
8 … 15
aggressive carbonic acid
mg/dm3
0 … 400
0
oxygen
mg/dm3
<10
chloride ions
mg/dm3
<200
<50
sulphate ions
mg/dm3
<500
<250
nitrates and nitrites
mg/dm3
<100
<10
ammonia
mg/dm3
<20
<5
conductivity
S/cm
<300
<200
Suspended matters
mg/dm3
15
if >15: continuous cleaning recommended
soiling (max. grain size)
m
50

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4.5 Operation diagrams
The technical data of the frequency inverters refer to the nominal point which was selected to enable a
wide range of applications. A functionally and efficient dimensioning (derating) of the frequency invert-
ers is possible based on the following diagrams.
Installation altitude
Mains voltage
Ambient temperature
The diagram shows the ambient temperature in the electrical cabinet.
For the coolant temperature, refer to the Technical Data, see Chapter 4.1 "General tech-
nical data".
Power reduction (Derating);
2.5 %/K above 40 °C; T = 55 °Cmax
100
80
63
40
20
Coolant temperature in °C
Output current in %
0 10 20 30 40 50 55
100
85
60
40
20
Output current in %
3000
1000 2000 4000
Mounting altitude in m above sea level
Power reduction (Derating);
5%/1000m from
h = 4000m 1000m above sea level max
Output current reduction (Derating) at constant
output power;
0.22 %/V above 400 V; U = 480 Vmax
100
83
63
40
20
Grid voltage equals output voltage in V
Output current in %
0 400 420 440 460 480
Axx-TD-DeratingDiagram
Power reduction (Derating);
2.5 %/K above 40 °C; T = 55 °Cmax
100
80
63
40
20
Coolant temperature in °C
Output current in %
0 10 20 30 40 50 55
100
85
60
40
20
Output current in %
3000
1000 2000 4000
Mounting altitude in m above sea level
Power reduction (Derating);
5%/1000m from
h = 4000m 1000m above sea level max
Output current reduction (Derating) at constant
output power;
0.22 %/V above 400 V; U = 480 Vmax
100
83
63
40
20
Grid voltage equals output voltage in V
Output current in %
0 400 420 440 460 480
Axx-TD-DeratingDiagram
Power reduction (Derating);
2.5 %/K above 40 °C; T = 55 °Cmax
100
80
63
40
20
Coolant temperature in °C
Output current in %
0 10 20 30 40 50 55
100
85
60
40
20
Output current in %
3000
1000 2000 4000
Mounting altitude in m above sea level
Power reduction (Derating);
5%/1000m from
h = 4000m 1000m above sea level max
Output current reduction (Derating) at constant
output power;
0.22 %/V above 400 V; U = 480 Vmax
100
83
63
40
20
Grid voltage equals output voltage in V
Output current in %
0 400 420 440 460 480
Axx-TD-DeratingDiagram

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5Mechanical installation
By default, the frequency inverters of degree of protection IP20 are designed for stationary installation
in electrical cabinets.
For details on the mechanical installation of your device, refer to the relevant Operating
Instructions.
Below, installation is described only for those devices where mechanical installation of the liquid-cooled
device deviates from the installation of the air-cooled device.
The description covers the standard installation variants for liquid-cooled devices. For through-hole in-
stallation, refer to "Installation Manual –Feed-through mounting".
During installation, both the installation and the safety instructions as well as the device specifications
must be complied with.
WARNING
Inappropriate handling of the device may result in serious physical injuries or major
material damage.
To avoid serious physical injuries or major material damage, only qualified persons
are allowed to Work at the device.
WARNING
Risk of short circuit and fire!
During assembly, make sure that no foreign particles (e.g. chips, dust, wires, screws,
tools) can get inside the frequency inverter. Otherwise there is the risk of short circuits
and fire.
The frequency inverter complies with IP20 ingress protection rating only if the
covers, components and terminals are mounted properly.
Overhead installation or installation in horizontal position is not permissible.
NOTICE
Device damage
Liquid-cooled devices also feature internal fans.
Mount the devices with sufficient clearance to other components so that the cooling air
can circulate freely. Avoid soiling by grease and air pollution by dust, aggressive gases,
etc.
Do not cover fan inlet and outlet openings .
For devices with liquid cooling install the coolant pipes after mechanical installation.

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5.1 Size 5 (liquid-cooled)
The frequency inverter is mounted in a vertical position on the assembly panel. The following illustration
shows the standard fitting.
Standard installation
Dimensions [mm]
Assembly dimensions [mm]
a
b
c
a1
a2
b1
b2
c1
400
300
220
450 … 464
480
28
244
97
Assembly is done by screwing the two fixing brackets to the heat sink of the frequency inverter and the
assembly panel.
The frequency inverters are provided with fixing brackets, which are fitted using four thread-cutting
screws. The dimensions of the device and the installation dimensions are those of the standard device
without optional components and are given in millimeters.
ACU210Size5-TZ-LiquidCooling_01-V00
b2
b
b1
a1 aa2
b2
c1
c