Troubleshooting
54
17200492_002_A5 - 04/2011 - © Oerlikon Leybold Vacuum
Error
code
Error
Possible Cause
Remedy
Shut-
down
–
Yellow power
LED is not on
No DC power
DC power miswired
Frequency converter
defective
Check cables and power
supply
Ensure correct polarity of
the DC cable.
Replace frequency conver-
ter. The following may
damage the freq. conver-
ter:
■
Disconnection of the DC
cable while the pump was
still rotating
■
Non-compliance with
the note related to
connecting several pump
to a single power supply.
–
div.
Red LED
flashes
Warning message.
See Section “3.2.6
Warning codes” for the
possible reasons of the
warning.
The pump can continue to
run, as long as operation
limits are only exceeded
for a short time. In case of
longer exceeding send
pump and frequency con-
verter to the OLV service.
no