Instruction Manual PROTECT-PSC
V 2.6R01 / 04.19
7-8
7.4
Maintenance
Assuming correct assembly and circuitry the maintenance work is restricted to the
changing of the back-up battery (approx. every 5 years). The battery must be
changed if the error code 022 or the special flag VF0 has not been deleted after
more than a 4-hour charging period. If the error message continues after replacing
the battery, an internal error of the CPU module exists. In this case please consult
your supplier.
7.4.1
Changing the battery
See Chapter 4.2.4.
7.4.2
Defective fuses
If the internal fuse of a module is destroyed due to faulty circuitry or a component
defect, do not attempt under any circumstances to replace it yourself. Please
consult your supplier to repair the module.
7.4.3
Failure as a result of common cause
A failure as a result of common cause is to be given special consideration during
installation, service and maintenance work. This is a failure which may be the
result of one or several events causing the simultaneous failure of both channels of
the PROTECT-PSC and thus may lead to a system failure. The channel
separation must be maintained during all work to and with the PROTECT-PSC.
7.5
Service
In the case of defective modules or other problems please consult one of the
following addresses:
Europe
K.A. Schmersal GmbH & Co. KG
Möddinghofe 30
42279 Wuppertal
Asia
JTEKT CORPORATION
1-1 Asahimachi,Kariya-city, Aichi Pref
448-8652, JAPAN
Summary of Contents for PROTECT-PSC
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