Pfeiffer Vacuum DCU 002 User manual

OPERATING INSTRUCTIONS
EN
Translation of the Original
DCU 002 I 110 | 180 | 310 | 400
Display Control Unit

Dear Customer,
Thank you for choosing a Pfeiffer Vacuum product. Your new Display Control Unit should
support you in your individual application with full performance and without malfunctions. The
name Pfeiffer Vacuum stands for high-quality vacuum technology, a comprehensive and
complete range of top-quality products and first-class service. From this extensive, practical
experience we have gained a large volume of information that can contribute to efficient
deployment and to your personal safety.
In the knowledge that our product must avoid consuming work output, we trust that our
product can offer you a solution that supports you in the effective and trouble-free
implementation of your individual application.
Please read these operating instructions before putting your product into operation for the
first time. If you have any questions or suggestions, please feel free to contact info@pfeiffer-
vacuum.de.
Further operating instructions from Pfeiffer Vacuum can be found in the Download Center on
our website.
Disclaimer of liability
These operating instructions describe all models and variants of your product. Note that your
product may not be equipped with all features described in this document. Pfeiffer Vacuum
constantly adapts its products to the latest state of the art without prior notice. Please take
into account that online operating instructions can deviate from the printed operating
instructions supplied with your product.
Furthermore, Pfeiffer Vacuum assumes no responsibility or liability for damage resulting from
the use of the product that contradicts its proper use or is explicitly defined as foreseeable
misuse.
Copyright
This document is the intellectual property of Pfeiffer Vacuum and all contents of this
document are protected by copyright. They may not be copied, altered, reproduced or
published without the prior written permission of Pfeiffer Vacuum.
We reserve the right to make changes to the technical data and information in this document.
2/36

Table of contents
1 About this manual 7
1.1 Validity 7
1.1.1 Applicable documents 7
1.1.2 Variants 7
1.2 Target group 7
1.3 Conventions 7
1.3.1 Instructions in the text 7
1.3.2 Pictographs 7
1.3.3 Stickers on the product 8
1.3.4 Abbreviations 8
2 Safety 10
2.1 General safety information 10
2.2 Safety instructions 10
2.3 Safety precautions 12
2.4 Limits of use of the product 12
2.5 Proper use 12
2.6 Foreseeable improper use 12
3 Product description 14
3.1 Identifying the product 14
3.2 Product features 14
3.3 Shipment 14
3.4 Function 14
3.4.1 Key functions 15
3.4.2 Status symbols 16
4 Installation 17
4.1 Preparing for installation 17
4.2 Installing the device in a rack 17
4.3 Connecting the electrical supply 17
4.3.1 Connection diagram 18
4.3.2 Earthing the device 19
4.3.3 Connect DCU to a vacuum pump 19
4.3.4 Establishing mains connection 20
4.4 Connecting measuring tubes 21
5 Parameter set 22
5.1 General 22
5.2 Additional parameter for the DCU 22
5.3 Data types 23
6 Operation 24
6.1 LC-display 24
6.2 Switching on the DCU 24
6.3 Displaying and configuring parameters 25
6.4 Switching on the connected vacuum pump 25
6.5 Transmitter operation 26
6.6 Switching off the connected vacuum pump 26
6.7 Operating mode display via LED 26
6.8 Switching off the DCU 27
7 Maintenance 28
7.1 Device defect 28
7.2 Cleaning 28
8 Malfunctions 29
Table of contents
3/36

8.1 General 29
8.2 Error codes 29
9 Service solutions by Pfeiffer Vacuum 30
10 Accessories 32
11 Technical data and dimensions 33
11.1 Technical data 33
11.2 Dimension drawings 33
Declaration of Conformity 35
Table of contents
4/36

List of tables
Tbl. 1: Stickers on the product 8
Tbl. 2: Abbreviations used in this document 9
Tbl. 3: Permissible ambient conditions 12
Tbl. 4: Product features 14
Tbl. 5: Description of key functions on control panel 16
Tbl. 6: Status symbols and display 16
Tbl. 7: Connection possibilities for electronic drive unit and transmitter 18
Tbl. 8: Available Pfeiffer Vacuum transmitters for connection to a DCU 21
Tbl. 9: Explanation and meaning of the parameters 22
Tbl. 10: Parameter for DCU functions 22
Tbl. 11: Meaning of functions and layout of the LC-display 24
Tbl. 12: Self-test, internal requests after switching on 25
Tbl. 13: Selecting and editing parameters 25
Tbl. 14: Examples of displays for the transmitter 26
Tbl. 15: Examples of displays for the actual pressure value 26
Tbl. 16: Behavior and meaning of the LED display 27
Tbl. 17: Warning and error messages when using the DCU 29
Tbl. 18: DCU 002 33
Tbl. 19: DCU 110, DCU 180 33
Tbl. 20: DCU 310, DCU 400 33
List of tables
5/36

List of figures
Fig. 1: Position of the labels on the product 8
Fig. 2: DCU control panel, front view 14
Fig. 3: DCU with integrated power supply pack, rear view 15
Fig. 4: DCU 002, rear view 15
Fig. 5: Connection diagram for the DCU with integrated power supply pack 18
Fig. 6: Connection diagram for the DCU 002 18
Fig. 7: Connection of the grounding cable to the DCU with integrated power supply
pack
19
Fig. 8: Example: Connection of a DCU 002 to a vacuum pump 20
Fig. 9: Example: Connection of a DCU with integrated power supply pack to a vac-
uum pump
20
Fig. 10: LC-display, overview 24
Fig. 11: Dimensions DCU 002 34
Fig. 12: Dimensions DCU 110 34
Fig. 13: Dimensions DCU 180, DCU 310, DCU 400 34
List of figures
6/36

1 About this manual
IMPORTANT
Read carefully before use.
Keep the manual for future consultation.
1.1 Validity
This operating instructions is a customer document of Pfeiffer Vacuum. The operating instructions de-
scribe the functions of the named product and provide the most important information for the safe use of
the device. The description is written in accordance with the valid directives. The information in this op-
erating instructions refers to the product's current development status. The document shall remain valid
provided that the customer does not make any changes to the product.
1.1.1 Applicable documents
DCU Display Control Unit Number
Declaration of conformity Part of this document
1.1.2 Variants
This instruction applies for Display Control Units with the following type designation:
●DCU 002, Display Control Unit
●DCU 110, Display Control Unit with integrated power supply pack
●DCU 180, Display Control Unit with integrated power supply pack
●DCU 310, Display Control Unit with integrated power supply pack
●DCU 400, Display Control Unit with integrated power supply pack
1.2 Target group
This operating instructions is intended for persons who
●install,
●operate.
The work described in this document may be carried out only by people who have completed suitable
technical training (experts), or who have received equivalent training from Pfeiffer Vacuum.
1.3 Conventions
1.3.1 Instructions in the text
Usage instructions in the document follow a general structure that is complete in itself. The required ac-
tion is indicated by an individual step or multi-part action steps.
Individual action step
A horizontal, solid triangle indicates the only step in an action.
►This is an individual action step.
Sequence of multi-part action steps
The numerical list indicates an action with multiple necessary steps.
1. Step 1
2. Step 2
3. ...
1.3.2 Pictographs
Pictographs used in the document indicate useful information.
About this manual
7/36

Note
Tip
1.3.3 Stickers on the product
This section describes all the stickers on the product along with their meaning.
Mod.:
Mod.-Nr.:
Input:
Output:
Ser. -Nr.:
Made in Germany
DCU 110
PM C01 820
Masse:
100-240 V +/- 10% 2,0-0,8 A 50/60 Hz 125VA
D-35614 Asslar
24 V 4,6 A 110 W
1,20 kg _2021
- - - - - - - -
Rating plate (example)
Rating plates of the devices are affixed to the housing where
they can be clearly seen
CUS
Safety approved
USA CAN
TÜV Rheinland
Test seal:
The test seal provides information regarding additional certifi-
cations
Tbl. 1: Stickers on the product
1 2 3 4
Fig. 1: Position of the labels on the product
1 CAN/USA test seal 3 Rating plate for DCU
2 Rating plate for DCU with power supply pack 4 CAN/USA test seal
1.3.4 Abbreviations
Abbreviation Meaning in this document
AC AC Voltage
APR Piezo transmitter
CMR Capacitive transmitter CMR
DC Direct voltage, operating voltage
DCU Display Control Unit
fRotation speed value of a vacuum pump (frequency, in rpm or Hz)
LC Liquid crystal
LED Illuminating diode
MPT Pirani/Cold cathode transmitter
PCR Pirani/Capacitive transmitter
PKR Pirani/Cold cathode transmitter
PPT Pirani transmitter
[P:xxx] Electronic drive unit control parameters. Printed in bold as three-digit number in
square brackets. Frequently displayed in conjunction with a short description.
Example: [P:312] software version
About this manual
8/36

Abbreviation Meaning in this document
RS-485 Standard for a physical interface for asynchronous serial data transmission (Recom-
mended Standard)
RPT Piezo/Pirani transmitter RP
S1 Switch on power supply pack
TTemperature (in °C)
TC Turbopump electronic drive unit (turbo controller)
TPR Pirani transmitter
TPS Power supply pack, voltage supply (turbo power supply)
X3 Connecting socket for a Pfeiffer Vacuum transmitter
Tbl. 2: Abbreviations used in this document
About this manual
9/36

2 Safety
2.1 General safety information
The following 4 risk levels and 1 information level are taken into account in this document.
DANGER
Immediately pending danger
Indicates an immediately pending danger that will result in death or serious injury if not observed.
►Instructions to avoid the danger situation
WARNING
Potential pending danger
Indicates a pending danger that could result in death or serious injury if not observed.
►Instructions to avoid the danger situation
CAUTION
Potential pending danger
Indicates a pending danger that could result in minor injuries if not observed.
►Instructions to avoid the danger situation
NOTICE
Danger of damage to property
Is used to highlight actions that are not associated with personal injury.
►Instructions to avoid damage to property
Notes, tips or examples indicate important information about the product or about this docu-
ment.
2.2 Safety instructions
All safety instructions in this document are based on the results of the risk assessment carried out in
accordance with Low Voltage Directive 2014/35/EU. Where applicable, all life cycle phases of the prod-
uct were taken into account.
Risks during installation
DANGER
Danger to life from electric shock
Touching exposed and voltage-bearing elements causes an electric shock. Improper connection of
the mains supply leads to the risk of touchable live housing parts. There is a risk to life.
►Before the installation, check that the connection leads are voltage-free.
►Make sure that electrical installations are only carried out by qualified electricians.
►Provide adequate grounding for the device.
►After connection work, carry out an earthed conductor check.
Safety
10/36

DANGER
Danger to life from electric shock
Power supply packs that are not specified or are not approved will lead to severe injury to death.
►Make sure that the power supply pack meets the requirements for double isolation between
mains input voltage and output voltage, in accordance with IEC 61010-1 IEC 60950-1 and
IEC 62368-1.
►Make sure that the power supply pack meets the requirements in accordance with IEC 61010-1
IEC 60950-1 and IEC 62368-1.
►Where possible, use original power supply packs or only power supply packs that correspond
with the applicable safety regulations.
WARNING
Risk of danger to life through missing mains disconnection device
The vacuum pump and electronic drive unit are not equipped with a mains disconnection device
(mains switch).
►Install a mains disconnection device according to SEMI-S2.
►Install a circuit breaker with an interruption rating of at least 10,000 A.
WARNING
Risk of fatal injury due to electric shock on account of incorrect installation
The device's power supply uses life-threatening voltages. Unsafe or improper installation can lead to
life-threatening situations from electric shocks obtained from working with or on the unit.
►Ensure safe integration into an emergency off safety circuit.
►Do not carry out your own conversions or modifications on the unit.
Risks during operation
WARNING
Danger to life from electric shock in the event of a fault
In the event of a fault, devices connected to the mains may be live. There is a danger to life from
electric shock when making contact with live components.
►Always keep the mains connection freely accessible so you can disconnect it at any time.
Risks during maintenance
WARNING
Danger to life from electric shock during maintenance and service work
The device is only completely de-energized when the mains plug has been disconnected and the
vacuum pump is at a standstill. There is a danger to life from electric shock when making contact with
live components.
►Before performing all work, switch off the main switch.
►Wait until the vacuum pump comes to a standstill (rotation speed =0).
►Disconnect all connection cables.
►Remove the mains plug from the device.
►Secure the device against unintentional restarting.
Risks during troubleshooting
WARNING
Danger to life from electric shock in the event of a fault
In the event of a fault, devices connected to the mains may be live. There is a danger to life from
electric shock when making contact with live components.
►Always keep the mains connection freely accessible so you can disconnect it at any time.
Safety
11/36

2.3 Safety precautions
Duty to provide information on potential dangers
The product holder or user is obliged to make all operating personnel aware of dangers
posed by this product.
Every person who is involved in the installation, operation or maintenance of the product
must read, understand and adhere to the safety-related parts of this document.
Infringement of conformity due to modifications to the product
The Declaration of Conformity from the manufacturer is no longer valid if the operator
changes the original product or installs additional equipment.
●Following the installation into a system, the operator is required to check and re-evalu-
ate the conformity of the overall system in the context of the relevant European Direc-
tives, before commissioning that system.
General safety precautions when handling the product
►Use only power supply packs that comply with the applicable safety regulations.
►Observe all applicable safety and accident prevention regulations.
►Check that all safety measures are observed at regular intervals.
►Recommendation: Establish a secure connection to the earthed conductor (PE); protection class I.
►Never disconnect plug connections during operation.
►Keep lines and cables away from hot surfaces (> 70 °C).
►Do not carry out your own conversions or modifications on the unit.
►Observe the unit protection class prior to installation or operation in other environments.
2.4 Limits of use of the product
Installation location weatherproof (internal space)
Air pressure 750 hPa to 1060 hPa
Installation altitude max. 2000 m
Rel. air humidity max. 80%, at T < 31°C,
up to max. 50% at T < 40°C
Protection class (according to IEC 61010) I
Degree of pollution (according to IEC 61010) 2
Overvoltage category II
Protection degree IP20
Ambient temperature +5 ° to +50 °C
Tbl. 3: Permissible ambient conditions
2.5 Proper use
●The DCU Display Control Units are used exclusively for control of the electronic drive units for
Pfeiffer Vacuum vacuum pumps and their accessories.
●The version with integrated power supply pack also supplies the operating voltage for the vacuum
pump.
2.6 Foreseeable improper use
Improper use of the product invalidates all warranty and liability claims. Any use that is counter to the
purpose of the product, whether intentional or unintentional, is regarded as improper use; in particular:
●Connection to the current supply that does not comply with the provisions of IEC 61010 or IEC
60950
●Operating modes that may result in hazardous situations with connected devices if unintentionally
or automatically activated
●Operation with excessive irradiated heat output
Safety
12/36

●Use in areas with ionizing radiation
●Operation in potentially explosive areas
●Use of accessories or spare parts that are not listed in these instructions
Safety
13/36

3 Product description
3.1 Identifying the product
►To ensure clear identification of the product when communicating with Pfeiffer Vacuum, always
keep all of the information on the rating plate to hand.
►Learn about certifications through test seals on the product or at www.certipedia.com with compa-
ny ID no. 000024550.
3.2 Product features
Feature DCU 002 DCU 110 DCU 180 DCU 310 DCU 400
Power supply pack None integrated integrated integrated integrated
Suitable for HiPace all 10, 60, 80 300 300, 400, 700, 800 300, 400, 700, 800
Electronic drive unit TC 110
TC 120
TC 400
TM 700
TC 1200
TC 110 TC 110 TC 400 (24 V DC) TC 120 (48 V DC)
TC 400 (48 V DC)
TM 700
Tbl. 4: Product features
3.3 Shipment
●Display and control unit DCU
●Interface cable M12 to M12, 3 m in length
●Fixing materials
●Operating manual
3.4 Function
The DCU is a display and control unit for Pfeiffer Vacuum vacuum pumps with integrated electronic
drive unit. This device provides an overview of all control parameters for the electronic drive unit. It is
also possible to connect a pressure-measuring tube.
DCU
1
2
3
4
Fig. 2: DCU control panel, front view
1 LC display, illuminated 3 LED operating mode display
2 Status symbols 4 Controls
Product description
14/36

X3
DC out
RS485
PE
AC in
S1
1
8
3
4
9
10
2
6
7
5
Fig. 3: DCU with integrated power supply pack, rear view
1 Front plate, rear side 6 Connecting socket DCout
2 Mounting hole 7 Connecting plug ACin, mains input
3 Connecting socket X3 8 Mains switch S1
4 Connecting socket RS-485 9 Earthed conductor, M4
5 Contrast setting 10 Mounting bracket for mains connection
X3
RS485
1
3
4
2
5
Fig. 4: DCU 002, rear view
1 Front plate, rear side 4 Connecting socket RS-485
2 Mounting hole 5 Contrast setting
3 Connecting socket X3
3.4.1 Key functions
Four short-stroke keys (softkeys) make up the user interface.
Product description
15/36

Key Parameter | Application Explanation
Equivalent to
[010] = 0 or 1
Pumping station on/off: Starts/shuts down all compo-
nents according to their configuration
Malfunction acknowledgment (reset): Resets active er-
ror messages, provided that the cause has been rectified.
[308] --> [309] Scroll forward in parameter set
[309] --> [308] Scroll back in parameter set
Press simultaneously Editing mode: Allows the setting of parameter options
The arrow - - - > on the display indicates the option selec-
tion
Press again simultaneous-
ly
Selection mode: Confirms the selection ("change con-
firmed")
Tbl. 5: Description of key functions on control panel
3.4.2 Status symbols
Status symbols under the LC-display visualize the current operating condition of the connected devices
relative to essential parameters. Arrow representations in the lower display line provide visual informa-
tion regarding status of the device.
Symbol Parameter Arrow represen-
tation
Explanation
Vacuum pump accelerates
= [P:307]
– NO
YES
Preselection Heating
= [P:001]
– No preselection
Preselection heating, switching point
not reached
Heating On, switching point reached
Stand-by
= [P:002]
– OFF
ON
Equipment remote controlled
= [P:300]
– NO
YES
Switching point reached
= [P:302]
– NO
YES
Overtemperature – No overtemperatures
Overtemperature vacuum pump =
[P:305]
Overtemperature electronic drive unit
= [P:304]
Overtemperature vacuum pump and
electronic drive unit
Final speed reached
= [P:306]
– NO
YES
Tbl. 6: Status symbols and display
Product description
16/36

4 Installation
4.1 Preparing for installation
General comments regarding installation
►Choose a site for installation where access to the product and to supply lines is possible at all
times.
►Install the device upright.
►Respect the ambient conditions stated for the area of use.
►A minimum distance of 50 mm from the upper cooling vents to adjacent components must be
maintained.
►Ensure adequate cooling options, e.g., in the control cabinet.
4.2 Installing the device in a rack
NOTICE
Damage caused by overheating
The ambient temperature must not exceed the permissible operating temperature of the device.
►Make sure there is unobstructed circulation of air when installing the device.
►Periodically check and clean the installed air filter, if necessary.
The device is suitable for installation in a 19" mounting rack 3HE in accordance with DIN 41494.
Installing the device in a rack
1. Install guide rails in the rack as required.
2. Push the device upright into the rack all the way to the front panel.
3. Secure the front panel with 4 collar screws and plastic nipples included in the shipment.
4.3 Connecting the electrical supply
DANGER
Danger to life from electric shock
Touching exposed and voltage-bearing elements causes an electric shock. Improper connection of
the mains supply leads to the risk of touchable live housing parts. There is a risk to life.
►Before the installation, check that the connection leads are voltage-free.
►Make sure that electrical installations are only carried out by qualified electricians.
►Provide adequate grounding for the device.
►After connection work, carry out an earthed conductor check.
WARNING
Risk of injury due to incorrect installation
Dangerous situations may arise from unsafe or incorrect installation.
►Do not carry out your own conversions or modifications on the unit.
►Ensure the integration into an Emergency Off safety circuit.
WARNING
Risk of danger to life through missing mains disconnection device
The vacuum pump and electronic drive unit are not equipped with a mains disconnection device
(mains switch).
►Install a mains disconnection device according to SEMI-S2.
►Install a circuit breaker with an interruption rating of at least 10,000 A.
Installation
17/36

4.3.1 Connection diagram
X3
1
2
3
4
5
6
1
2
3
4
5
6
1
5
2
3
6
4
1
5
2
3
6
4
RS485 RS485
1
2
3
4
5
1
2
3
4
5
L1
N
PE
DC out
AC in S1 DC in
+1
-2
FE
A
B
C
A
B
C
A
B
C
DCU 110
DCU 180
DCU 310
DCU 400
Fig. 5: Connection diagram for the DCU with integrated power supply pack
X3
1
2
3
4
5
6
1
2
3
4
5
6
1
5
2
3
6
4
1
5
2
3
6
4
RS485 RS485
1
2
3
4
5
1
2
3
4
5
DCU 002
Fig. 6: Connection diagram for the DCU 002
Connection to: DCU 002 DCU with integrated power supply pack
Vacuum pump with electronic
drive unit
TC 110
TC 120
TC 400
TM 700
TC 1200
TC 110
TC 120
TC 400
TM 700
Transmitter type TP/PCR
PKR 2xx
APR 250/260
CMR x61 – x65
TP/PCR
PKR 2xx
APR 250/260
CMR x61 – x65
Tbl. 7: Connection possibilities for electronic drive unit and transmitter
Installation
18/36

Connection selection at the electronic drive unit
The interface configuration for an electronic drive unit determines the connection options
for the DCU.
●Connection to an electronic drive unit with multi-function connector via connection ca-
ble or via adapter from the Pfeiffer Vacuum accessories
●Connection to an electronic drive unit directly at an available RS-485 interface
4.3.2 Earthing the device
●The ground terminal is obligatory for DCUs with integrated power supply pack.
●Pfeiffer Vacuum recommends connecting a suitable grounding cable to the DCU 002 to discharge
applicative interferences.
●Alternatively, the DCU 002 is grounded following installation in a rack.
M4
X3
RS 485
DC out
1
2
Fig. 7: Connection of the grounding cable to the DCU with integrated power supply pack
1 Ground terminal 2 Rear of housing
Procedure for DCU with integrated power supply pack
1. Use the ground terminal at the back of the device (M4 female thread).
2. Route the connection in accordance with locally applicable provisions.
4.3.3 Connect DCU to a vacuum pump
DANGER
Danger to life from electric shock
Power supply packs that are not specified or are not approved will lead to severe injury to death.
►Make sure that the power supply pack meets the requirements for double isolation between
mains input voltage and output voltage, in accordance with IEC 61010-1 IEC 60950-1 and
IEC 62368-1.
►Make sure that the power supply pack meets the requirements in accordance with IEC 61010-1
IEC 60950-1 and IEC 62368-1.
►Where possible, use original power supply packs or only power supply packs that correspond
with the applicable safety regulations.
Observe the supreme operating control for the electronic drive unit interfaces
DIL switches in the connecting cable or bridges in the mating connector for the D-Sub con-
nector for the electronic drive unit enable operation of the pump without control unit. This
may cause priority conflicts with the RS-485 interface.
●Disconnect the mating connector from the "remote" connection prior to connecting a
DCU to electronic drive unit TC 400, TC 1200 or TM 700.
●Switch off the supreme operating control (DIL switch S1/S2 = OFF) prior to connecting
a DCU to the electronic drive unit TC 110
Installation
19/36

X3
RS 485
1 2 3 4
5
Fig. 8: Example: Connection of a DCU 002 to a vacuum pump
1 DCU 002 4 Turbopump HiPace 80
2 Interface cable M12 5 Connecting plug to power supply pack
3 Electronic drive unit TC 110
Connecting the DCU 002
The DCU 002 receives the supply voltage via the electronic drive unit interface. The RS485 serial inter-
face of the DCU is used exclusively to control the electronic drive unit of a vacuum pump. The interface
protocol us described in the operating manual of the respective electronic drive unit.
1. Connect the "RS-485" DCU connection with the electronic drive unit of the vacuum pump.
2. Use the interface cable M12 from the shipment.
X3
RS 485
DC out
123
5
4
Fig. 9: Example: Connection of a DCU with integrated power supply pack to a vacuum pump
1 DCU 002 4 Turbopump HiPace 700
2 RS-485 interface cable (M12) 5 Supply voltage cable "DC"
3 Electronic drive unit TC 400
Connecting a DCU with integrated power supply pack
1. Make sure that the power supply pack main switch is off prior to connection.
2. Always ensure a secure connection to the earthed conductor (PE), protection class I.
3. Connect the "RS-485" DCU connection with the electronic drive unit of the vacuum pump.
4. Use the interface cable M12 from the shipment.
5. Connect the "DC out" connection of the DCU with the electronic drive unit of the vacuum pump as
prescribed in the wiring diagram, or with a cable from the Pfeiffer Vacuum accessories.
4.3.4 Establishing mains connection
Only applicable for configurations with integrated power supply pack (DCU 110, DCU 180, DCU 310
and DCU 400). The DCU 002 receives the supply voltage via the electronic drive unit RS-485 interface.
Installation
20/36