13
Operation
Operation with DCU
Consider the following manuals for the operation via Pfeiffer Vacuum display
and control units:
• Operating instructions "DCU"
• Operating instructions "Electronic drive unit"
Switch on the mains supply via the main switch.
Switch on the pumping station via button "ON/OFF" on the DCU 002.
Settings are possible via the RS485 by using DCU, HPU or PC.
Use of the DCU as a remote control
The display and control unit can be removed from the pumping station and used
as a remote control.
Fig. 4: Setting up the DCU for use as a remote control
Switch off the pumping station at the master switch.
Disconnect the mains plug.
Unscrew and remove the 4 fastening screws with washers from the front panel
of the display and control unit.
Lift out the display and control unit from the housing.
– Be careful of the housing seal.
Swap the connecting cable between the display and control unit and the electro-
nic drive unit marked "RS 485" for a longer M12 interface cable (accessory).
6.4 Operation with gas ballast valve
Steam or moisture from pumped media can condense in the vacuum pump and
hence impair the suction performance.
Letting in gas ballast improves the discharge of condensate, and the pump
achieves the specified final vacuum more quickly. The gas ballast valve can be re-
placed with a flushing gas connection if necessary.
For operation with gas ballast, please refer to the operating manual for the ba-
cking pump.
1.1
Casing
7.9
Electronic drive unit TC 110
9
Display and control unit
10.1 Master switch
26
Fastening screw
27
Washer
26/27
26/27
9
1.1
10.1
7.
9
