Vacuum pump system SCC 950
Troubleshooting
Translation of original Operating Instructions, English, KNF 304771-304773 07/18
49
Vacuum pump system generally
Error
Cause
Remedy
Diaphragm and valve
plates have been replaced.
Make sure that the diaphragms have
the correct shim rings.
If necessary, carefully tighten the
attachment screws (Fig. 19/
2
, p. 41)
of the pump head alternately.
Gas ballast still open.
Close gas ballast.
Despite the required pres-
sure decrease the pump
does not start when a
process is started.
Hand terminal or software
is not connected to the
vacuum pump system.
Establish connection.
The overcurrent protection
circuit of the vacuum pump
system has responded.
Switch the vacuum pump system off
and on to reset it.
Make sure that nothing is blocking
the fans on the vacuum pump sys-
tem (Fig. 2/
12
and
13
, p. 13) and
that there is sufficient air feed and
removal.
Identify and eliminate cause of pump
overload.
Tab. 9 (3rd part)
Hand terminal
Error
Cause
Remedy
Hand terminal can-
not be taken from
the vacuum pump
system.
Transportation safe-
guard was not re-
moved.
Remove transportation safeguard
(see Chapter 6.1).
Hand terminal's
display stays dark.
Hand terminal is not
switched on.
Switch hand terminal on.
Batteries in hand
terminal are empty.
Place hand terminal on switched on vacuum
pump system to charge the batteries.
Alternatively: Run hand terminal via the power
supply.
Tab. 10 (1st part)
