Operation
35
10.5 Switching on
Connect the mains cable to the mains.
10.5.1 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
●
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, it is DCU ready to operate.
●
The green LED flashes.
Reset malfunction messages using key
, if necessary.
10.6 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).
10.6.1 Selecting the parameters
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.
10.6.2 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.
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.
