7 Operation
7.1 Switching on unit
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.
Switching on power supply
►
Switch on the power supply with the mains switch on the rear of the unit.
After switching on, the TCP carries out self-testing for approx. 5 seconds and checks the connected
units.
Test Function
LC-display All characters in the LC-display are controlled for a short time.
LED The LEDs have the status of the last switched-on status and do not necessarily
light up after switching on.
Identification of the
connected devices
● The connected gauge is not detected automatically. The respective selec-
tion takes place via parameter P [738].
Tbl. 18: Self-test, internal requests after switching on
What to do in the event error messages appearing after switching on
For initial operation of the electronic drive unit or after changing the connected turbopump, the error
message E777 appears on the display.
1. Remove the cause of the malfunction .
2.
Reset error messages where applicable by pressing the key.
3. Remove the cause where applicable by selecting the valid nominal rotation speed of the turbo-
pump concerned .
7.2 LC-display
Fig. 10: LC-display, overview
The 4-line LC-display visualizes all functions.
Line
number
Function
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.
Operation
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