Pfeiffer Vacuum DCU 002 User manual

PT 0250 BEN/F (1604)
OPERATING INSTRUCTIONS EN
Translation of the original instructions
DCU 002/110/180/310/400
Display and control unit

Table of contents
2
Table of contents
1 About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Proper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Improper use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Product description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Product identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 General connection description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4 Range of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4 Connection diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.1 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.2 Connecting to the mains power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.4 Connecting a measuring device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1 LC-Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.2 Key functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.3 Symbol description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.4 Switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.6 Operation with DCU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.7 Pressure measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.8 Switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7 Malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.1 Operation display via LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.2 Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
9 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
10 Technical data and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
10 Technical data and dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
10.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

About this manual
3
1 About this manual
1.1 Validity
This operating manual is for customers of Pfeiffer Vacuum. It describes the functioning
of the designated product and provides the most important information for safe use of
the unit. The description follows applicable EU guidelines. All information provided in this
operating manual refers to the current state of the product's development. The documen-
tation remains valid as long as the customer does not make any changes to the product.
Up-to-date operating instructions can also be downloaded from
www.pfeiffer-vacuum.com.
1.2 Conventions
Safety instructions The safety instructions in Pfeiffer Vacuum operating instructions are the result of risk
evaluations and hazard analyses and are oriented on international certification stan-
dards as specified by UL, CSA, ANSI Z-535, SEMI S1, ISO 3864 and DIN 4844. In this
document, the following hazard levels and information are considered:
DANGER
Imminent danger
Indicates an imminent hazardous situation that will result in death or serious injury.
WARNING
Possibly imminent danger
Indicates an imminent hazardous situation that can result in death or serious injury.
CAUTION
Possibly imminent danger
Indicates an imminent hazardous situation that can result in minor or moderate injury.
NOTICE
Command or note
Command to perform an action or information about properties, the disregarding of
which may result in damage to the product.

4
About this manual
Pictographs
Instructions in the
text
Work instruction: here you have to do something.
Abbreviations DCU: Display Control Unit
TC: Electronic drive unit for turbopump
TPS: Mains pack
[P:000]: Parameter of the electronic drive unit with number
Prohibition of an action to avoid any risk of accidents, the disregarding
of which may result in serious accidents
Warning of a displayed source of danger in connection with operation of
the unit or equipment
Command to perform an action or task associated with a source of dan-
ger, the disregarding of which may result in serious accidents
Important information about the product or this document

Safety
5
2Safety
2.1 Safety precautions
●Observe the safety and accident prevention regulations.
●Check regularly that all safety precautions are being complied with.
●Do not loosen any plug connection during operations.
●Keep leads and cables well away from hot surfaces (> 70 °C).
●Always ensure a safe connection to the protective earthing conductor (PE, protection
class I).
●The unit has been accredited with protection class IP 20. Take necessary measures
when installing into ambient conditions, which afford other protection classes.
●Before carrying out any work disconnect the unit and all associated installations safely
from the mains.
2.2 Proper use
●The DCU is a display and control unit and may only be used to control Pfeiffer Vacuum
Turbopumps with electronic drive unit and associated peripheral devices.
●The DCU with integrated powerpack is also used to supply power to the turbopump.
●Only operate Pfeiffer Vacuum power supplies in the available specification.
Duty to inform
Each person involved in the installation or operation of the unit must read and observe
the safety-related parts of these operating instuctions.
The operator is obligated to make operating personnel aware of dangers originating
from the unit or the entire system.
WARNING
Danger of unsafe electrical installation
Safe operation after installation is the responsibility of the operator.
Do not independently modify or change the pump and electrical equipment.
Make sure that the system is integrated in an emergency off safety circuit.
Consult Pfeiffer Vacuum for special requirements.
WARNING
Danger of electric shock
In case of defect, the parts connected to the mains supply are under voltage.
Always keep the mains connection freely accessible so you can disconnect it at any
time.
NOTICE
EC conformity
The manufacturer's declaration of conformity becomes invalid if the operator modifies
the original product or installs additional components.
Following installation into a plant and before commissioning, the operator must check
the entire system for compliance with the valid EU directives and reassess it accord-
ingly.

6
Safety
2.3 Improper use
Improper use will cause all claims for liability and warranties to be forfeited. Improper use
is defined as usage for purposes deviating from those mentioned above, especially:
●connection to pumps or units which are not suitable for this purpose according to their
operating instructions
●connection to units which have exposed voltage-carrying parts
●connection to mains supplies, which do not confirm to the regulations IEC 61010 or
IEC 60950
●operation of the devices in areas with ionizing radiation

Product description
7
3 Product description
3.1 Product identification
Product characteris-
tics
The DCU is a display and control unit for Pfeiffer Vacuum Turbopumps with integrated
electronic drive unit. It enables control of all essential parameters for the electronic drive
unit. It is also possible to connect a pressure gauge.
To correctly identify the product when communicating with Pfeiffer Vacuum, always have
the information from the rating plate available.
Fig. 1: Example for a rating plate
Scope of delivery ●Display and control unit DCU
●Interface cable M12 to M12, length 3 m
●Fixing materials
●Operating instructions
3.2 Function
Characteristics DCU 002 DCU 110 DCU 180 DCU 310 DCU 400
Mains supply none integrated integrated integrated integrated
Power consumption 5 VA 130 VA 210 VA 340 VA 450 VA
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
Mod.:
M.-No.:
Ser. -No.:
Oil:
S(N
2
):
n,f:
Made in Germany
HiPace 300
DN 100 ISO-K, 3P
PM P03 900
---
260 l/s
60000 1/min, 1000 Hz
Weight: 6.7 kg
D-35614 Asslar
Fig. 2: Front cover DCU
1 LC display, illuminated
2 Status symbols
3 LED "Operating display"
4 Operating keys
DCU
1
2
3
4

8
Product description
3.3 General connection description
3.4 Range of application
Pfeiffer Vacuum display and control units DCU should be installed and operated under
the following ambient conditions.
X3
DC out
RS485
PE
AC in
S1
DCU 110 / 180 / 310 / 400
c
X3
RS485
DCU 002
c
Fig. 3: Display and control unit DCU, rear view variants
S1 Mains switch
AC in Mains connection, input
DC out Mains connection, output
PE Protective earth connection (M4)
X3 Pressure gauge connection
RS485 Serial interface
C Contrast adjustment
Installation location weatherproof (internal space)
Permissible protection class IP 20
Protection class I
Temperature +5 °C to +50 °C
Relative air humidity max. 80%, at T 31°C, max. 50% at T 40°C
Air pressure: 75 kPa - 106 kPa

Connection diagram
9
4 Connection diagram
Fig. 4: Terminal diagram and layout for DCU, variants with integrated power pack
Fig. 5: Terminal diagram and layout for DCU 002
Connection to: DCU 002 DCU 110/180/310/400
Turbopump with electronic
drive unit:
TC 110*
TC 120
TC 400
TM 700
TC 1200
TC 110*
TC 120
TC 400
TM 700
Gauge type: TP/PCR
PKR 2xx
APR 250/260
CMR x61 - x65
TP/PCR
PKR 2xx
APR 250/260
CMR x61 - x65
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
B
C
A
B
C
A
+1
-2
FE
A
B
C
DCU 110
DCU 180
DCU 310
DCU 400
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
Connections on electronic drive unit TC 110
Different connection possibilities (not provided in the scope of supply) are dependent on
the type of electronic drive unit TC 110.
●Connection via connecting cable or adapter
●Connection for electronic drive unit "TC 110 RS" direct to the RS485 interface (power
supply separately via TCP or connecting cable)
●For more information visit http://www.pfeiffer-vacuum.com, Keyword "HiPace acces-
sories"

10
Installation
5 Installation
5.1 Assembly
Rack installation The unit is fitted in a casing that is suitable for installation in 19"/3HE rack modules.
Insert the unit in the guiderails of a 19"/3HE rack and screw on the front panel secure-
ly with four fixing screws provided as part of the scope of supply.
5.2 Connecting to the mains power supply
This only applies to DCUs with integrated power packs. The DCU 002 receives the
operating voltage via the "RS485" interface for the turbopump electronic drive
unit.
Order the mains cable separately (see "accessories").
Switch off switch S1 on the power pack (position "0").
Plug mains cable into the mains connection "AC in".
Lock the mains cable with the mounting bracket.
Connect the mains cable to the mains.
Always ensure a safe connection to the protective earthing conductor (PE, protection
class I).
NOTICE
Ensure free convection
Incorrect installation can cause damage by over-heating or create a fire hazard.
Maintain a minimum distance of 50 mm from cooling vents to adjacent components
or boundaries.
Install the device upright.
WARNING
Danger of unsafe electrical installation
Safe operation after installation is the responsibility of the operator.
Do not independently modify or change the pump and electrical equipment.
Make sure that the system is integrated in an emergency off safety circuit.
Consult Pfeiffer Vacuum for special requirements.
WARNING
Danger of electric shock
In case of defect, the parts connected to the mains supply are under voltage.
Always keep the mains connection freely accessible so you can disconnect it at any
time.

Installation
11
5.3 Connections
Connect interface cable (supplied) on "RS485" to DCU and electronic drive unit.
Make connection between "DC out" on DCU and "DC in" on electronic drive unit in ac-
cordance with the terminal diagram or with a connecting cable from the Pfeiffer Vacu-
um accessories.
Connect pressure gauge if required to "X3" on the DCU.
●The RS485 serial interface is used exclusively to control the electronic drive unit on
the vacuum pump. See the Operating Instructions for the respective electronic drive
unit for the interface protocol specification.
Fig. 6: Example: Connection of DCU 002 toTurbopump HiPace 80 using connecting cable
Fig. 7: Example: Connection of DCU with integrated power pack to Turbopump HiPace 700
Note the operating priority of the interfaces for the electronic drive unit!
DIL switches in the connecting cable or bridges in the mating connector for the D-Sub
connector for the electronic drive unit enable operation of the pump without control unit.
This may cause priority conflicts with the RS485 interface.
Disconnect the mating connector from the "remote" terminal prior to connecting a
DCU to electronic drive units TC 400, TC 1200 or TM 700.
Switch off the supreme operating control (DIL switch S1/S2 = OFF) prior to connect-
ing a DCU to the electronic drive unit TC 110.
X3
RS 485
PM 061 299 -X
DCU 002
TC 110
HiPace 80
TPS
X3
RS 485
DC out
PM 061 299 -X
DCU
TC 400
HiPace 700

12
Installation
5.4 Connecting a measuring device
The connector socket labelled "X3" can be used to operate a Pfeiffer Vacuum pressure
measuring device from the ActiveLine series.
Table 1: Valid pressure gauges for the connection to the DCU
Gauge Display at the DCU [P:738]
APR 250/260 CMRx61
CMR 261/361 CMRx61, by manual selection
CMR 262/362 CMRx62, by manual selection
CMR 263/363 CMRx63, by manual selection
CMR 264/364 CMRx64, by manual selection
CMR 365 CMRx65, by manual selection
MPT 200 AR PKR2xx
PCR 280 TP/PCR
PKR 251/261/360/361 PKR2xx
PPT 200 AR TP/PCR
RPT 200 AR TP/PCR
TPR 270/280/281 TP/PCR

Operation
13
6Operation
6.1 LC-Display
The four line LCD visualizes the functions of the DCU.
Functions are assigned as follows:
–Line 1: Number and name of the selected parameter (e.g. 721: Vent time).
–Line 2: relevant value for the selected parameter. The arrow –––►indicates Edit
mode.
–Line 3 with two functions:
– Function 1: Current messages concerning operation and control will be displayed.
– Function 2: presentation of a required second parameter in the format [Parameter
number: value]. The function for this line can be set via parameter [P:795] Servic-
elin in Line 1. All parameters can be accessed with "Servicelin". Error messages
will be displayed independently of the selected function.
–Line 4: presentation of the current equipment status by arrows that point to the asso-
ciated symbols.
–Line 5: Symbols (see below)
6.2 Key functions
4 short-travel keys (softkeys) constitute the operator interface for the DCU.
721: Venting time
---> 3600 s
795
1
2
3
4
5
Key Application/Example Explanation
Reset (error acknowledgement) acknowledges errors (red
LED illuminates)
[309]: ActualSpd
[308]: SetRotSpd
Scroll back through parmeters
Scrolls back one parameter
[310]: DrvCurrent
[311]: OpHrsPump
Scroll forwards through parameters
Scrolls forwards one parameter
Simultaneous
[001]: Heating
–––►off
Change value (Edit mode)
Access to displayed value, if possible
(Arrow–––►is displayed)
[001]: Heating
on
Confirm value (Parameter selection mode)
Accept changed value
("change confirmed" is displayed)
[010]: PumpgStatn
on / off
Pumping station ON/OFF
switches pumping station on or off.
corresponds to parameter [010]: "PumpgStatn"

14
Operation
6.3 Symbol description
6.4 Switching on
Switch on the supply voltage with switch S1 on the DCU with integrated power pack,
or when using a DCU 002 switch on via the provided power pack (e.g. TPS).
Self-test The DCU carries out a self-test and a check of the connected units after switch-on. The
duration of the self-test is approx. 20 s and is visualized in the display with a progress bar.
●LC display test: All characters in the LC display go dark for a short time.
●LED test: The red and green LEDs illuminate during the self-test.
●Hardware test of the DCU DCU
●Pump electronics connection test: The correct pump electronics connection and iden-
tity will be checked.
●Parameter check: Information on operating parameters will be loaded.
●Identification of the connected units: Electronic drive unit designation display.
●If no error has occurred, the DCU is ready to operate.
●The green LED flashes.
Reset malfunction messages using key , if necessary.
Symbol Description Arrow Explanation
Pump accelerates
= [P:307]
-NO
YES
Preselection heating
= [P:001]
- No preselection
Preselection heating, switchpoint not attained
Heating On, switchpoint attained
Standby
= [P:002]
-OFF
ON
Equipment remote con-
trolled
= [P:300]
-NO
YES
Switchpoint reached
= [P:302]
-NO
YES
Excess temperature - No excess temperatures
Excess temperature turbopump = [P:305]
Excess temperature turbo-electronics = [P:304]
Excess temperature turbopump and turbo-electronics
Ultimate speed reached
= [P:306]
-NO
YES
Ensure correct connection in the absence of display!
All connecting cables must always be connected to the electronic drive unit and the
mains at DCU with integrated power supplies. Otherwise the correct functioning of the
unit is not possible; there will be no operating display.
Connect all connecting cables for "RS485", "DCout" and "ACin".

Operation
15
6.5 Operation
All function-relevant variables of a turbopump are anchored in the electronic drive unit as
parameters. Each parameter has a three-digit number and a designation. Parameters
can be used via Pfeiffer Vacuum display and control units or via RS-485 with the Pfeiffer
Vacuum protocol.
The value of a parameter is always readable. Editable parameters are adjustment com-
mands and target values (See the operating instructions for the respective electronic
drive unit for this purpose).
Selecting the parame-
ters
Preselect parameter number using the (backwards) or (forwards) keys.
– Fast scrolling by pressing and keeping the relevant key depressed.
●The selected parameter appears in line 1, the corresponding value in line 2.
Set parameters Select a parameter.
Simultaneously press keys and .
●The edit mode for the selected parameter is active.
●At the beginning of the second line an arrow ( –––►) appears.
Using keys , to decrease or increase the value, respective to change op-
tions.
Simultaneously press keys and .
●If line 3 = empty (see P:795), the following will be displayed: "change confirmed"
●The parameter is set.
●Edit mode for the parameter is ended. The arrow ( –––►) disappears.
Edit mode( –––►) will disappear again automatically under the following condi-
tions and without accepting the value to be changed:
●Input disruption or no key operation for more than 10s.
●If an error occurs.
●Key "Pumping station ON/OFF" has been pressed.
●If line 3 = empty , "data not changed" will be displayed.
6.6 Operation with DCU
The display of further parameters depends on the type of electronic drive unit.
Parameter set and Pfeiffer Vacuum display and control unit
Pfeiffer Vacuum display and control units DCU show the basic parameter set by default.
Furthermore the DCU contains parameters, which are not positioned in the electronic
drive unit.
Parameter [P:794] = 1 (Display of all available parameters).
# Display Designation Functions
Data type Access
Unit min max default 
340 Pressure Pressure value (ActiveLine) 7 R hPa 1E-10 1E3
350 Ctr Name Type of display and control unit 4 R
351 Ctr Software Software of display and control unit 4 R
738 Gaugetype Type of pressure gauge 4 RW
794 Param set Parameterset 0 = basic parameter set
1 = extended parameter set
7RW 0 1 0
795 Servicelin Insert service line 7 RW 795

16
Operation
6.7 Pressure measurement
Connection and use of a high vacuum gauge enables pressure measurement in the vac-
uum system via the DCU.
Displaying the gauge
type
Parameter [P:794] = 1 (display extended parameter set)
Select or enter parameter [P:738] Gaugetype.
Gauges with identical surge impedance are only recognized as a group (e.g. CMR?).
Manual input of the exact gauge type is also possible via the parameter [P:738].
Displaying the active
pressure value
Parameter [P:794] = 1 (display extended parameter set)
Select parameter [P:340] Pressure.
6.8 Switching off
Switch off the pumping station via the "ON/OFF" button on the DCU.
Cut of supply voltage with switch S1 on the DCU with integrated power pack, or when
using a DCU 002 via the supplied power pack (e.g. TPS).
Start pump by pressing "Pumping station ON/OFF" key
The "Pumping station" key only controls the parameter [P:010]. All components con-
nected via the electronic drive unit will be activated or deactivated according to their
configuration.
Ensure that the parameter [P:023] is also switched on for powering-up the tur-
bopump.
Pressure measurement with the DCU
An exact pressure measurement is not possible with the DCU. This is particularly true
with linear gauges in the lower pressure range.
Use suitable measuring instrument.
Display example Meaning
TPR 2xx Gauge TPR 280 connected
CMR ? Gauge of the CMR Group connected, exact type not yet set
noGaug No pressure gauge connected
Display example Meaning
–––––– mbar No pressure gauge connected
< 5E-4mbar Measuring range not reached (dependent on the device)
> 1E3mbar Measuring range exceeded (dependent on the device)
6.3E-9mbar Valid pressure measurement
id fam mbar Gauge type not yet identified; see [P:340]
Error Error in pressure gauge

Malfunctions
17
7 Malfunctions
7.1 Operation display via LED
The red LED (error status) and green LED (operating status) on the front panel of the
DCU show the following states:
7.2 Error codes
Errors (** Error –––– **) always cause the connected peripheral devices to be switched
off.
Eliminate error and reset by pressing key .
Warnings (* Warning –––– *) are only displayed and do not cause components to be
switched off.
Further error and warning messages are described in the Operating Instructions for the
electronic drive unit.
Ensure correct connection in the absence of display!
All connecting cables must always be connected to the electronic drive unit and the
mains at DCU with integrated power supplies. Otherwise the correct functioning of the
unit is not possible; there will be no operating display.
Connect all connecting cables for "RS485", "DCout" and "ACin".
LED Symbol LED status Display Meaning
Green Off currentless
On, flashing "Pumping Station OFF", rotation speed ≤60 min-1
On, invers flashing "Pumping Station ON", set rotation speed not at-
tained
On, constantly "Pumping Station ON", set rotation speed at-
tained
On, blinking "Pumping Station OFF", rotation speed > 60 min-1
Red Off no malfunction, no warning
On, flashing Warning
On, constantly Malfunction
Display DCU Problem Possible causes Remedy
* Warning F110 * Pressure measuring device – Gauge faulty
– Connection to gauge detached during
operation
Restart with gauge connected
Change pressure gauge
Install pressure gauge correctly
** Error E040 ** Hardware error – external RAM faulty Contact Pfeiffer Vacuum Service.
** Error E042 ** Hardware error – EPROM check total Contact Pfeiffer Vacuum Service.
** Error E043 ** Hardware error – E2PROM write error Contact Pfeiffer Vacuum Service.
** Error E090 ** Internal device error – RAM not large enough
– DCU is connected to incorrect pump
electronics
Contact Pfeiffer Vacuum Service.
Connect correct pump electronics
** Error E698 ** Communication error – The electronic drive unit does not re-
spond
Contact Pfeiffer Vacuum Service.

18
Service
8 Service
Pfeiffer Vacuum offers first-class service!
●Fast replacement with exchange products in mint condition
●Advice on the most cost-efficient and quickest solution
Detailed information, addresses and forms at: www.pfeiffer-vacuum.com (Service).
Service orders
All service orders are carried out exclusively according to our repair conditions for vacu-
um units and components.
9 Accessories
An overview about original Pfeiffer Vacuum accessories for the designated device can
be found in the operating instructions of the respective vacuum pump.

Technical data and dimensions
19
10 Technical data and dimensions
10.1 Technical data
Parameter DCU 002
Connection 12-30 V DC
Ambient temperature 5-50 °C
Protection category IP 20
Power consumption 5 VA
Weight 0.4 kg
Parameter DCU 110 DCU 180
Ambient temperature 5-50 °C 5-50 °C
Protection category IP 20 IP 20
Mains requirement: frequency (range) 50/60 Hz 50/60 Hz
Mains requirement: power consump-
tion
130 VA 210 VA
Mains requirement: voltage (range) 115-230 (-20-+15 %) V AC 115-230 (-20-+15 %) V AC
Output voltage 24 (± 2 %) V DC 24 (± 2 %) V DC
Output current 4.6 A 7.5 A
Weight 1.2 kg 1.7 kg
Parameter DCU 310 DCU 400
Ambient temperature 5-50 °C 5-50 °C
Protection category IP 20 IP 20
Mains requirement: frequency (range) 50/60 Hz 50/60 Hz
Mains requirement: power consumption 340 VA 450 VA
Mains requirement: voltage (range) 115-230 (-20-+15 %) V AC 115-230 (-20-+15 %) V AC
Output voltage 24 (± 2 %) V DC 48 (± 2 %) V DC
Output current 12.5 A 8.4 A
Weight 1.85 kg 2.3 kg

20
Technical data and dimensions
10.2 Dimensions
Dimension DCU 002 DCU 110 DCU 180 DCU 310 DCU 400
B 52.5 mm 200.0 mm 230.0 mm 230.0 mm 230.0 mm
B
2.4
106.7 (21TE)
105.5
91.5
6
64.4
122.5
111. 2
128.5 (3HE)
38.9 35.6
3.5