Startup and Maintenance
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9.6.3 Testing in the Input/Output Subracks
The essential tests in the input/output subracks are:
For the construction of the I/O bus refer to the data sheets of the B 9302 assembly kit and of
the H41q assembly kits.
The input/output modules themselves have no coding. Only the correct position of the modules
and the corresponding cable connector must be regarded. The existing fuse modules including
fuses have to be checked for completeness. Also the correct assignment of the 24 V supply to
the slots of such modules, which need the feeding via the rear PCB bus, has to be checked.
9.6.4 Switching on the HIMA PES
After the operating voltage has been connected, the HIMA PES goes into RUN operation, if
the user program has been loaded and no error has been found in the system.
If STOP is displayed the program can be started via ELOP II (RUN state). There is an error if
this is not possible. Only after the correction of the error, e.g. setting the correct switch position,
correct connecting lines, or possibly after the exchange of a module etc. the RUN operation is
started.
Error displays can be called on the diagnostic display of the central module via two buttons or
after the start of the communication to the programming device via OLT window. Refer to the
documentation of the operating system.
9.6.5 Starting the Communication between Programming Device and PES
For construction and startup of the communication between progamming device and PES: re-
fer to the documentations first steps ELOP II, user manual operating system and user manual
ELOP II Resource Type.
Communication faults can be checked by means of a program (HIKA) for monitoring, logging
and analyzing of the data communication.
For more informations about the tool “HIKA” refer to the HIMA service.
9.7 Maintenance
At safety-related applications, e.g. using of relay output modules, the modules have to be over-
hauled at regular intervals (every 3 years for relay modules, for all other modules every 10
years, OFFLINE proof test, see IEC/EN 61508-4, paragraph 3.8.5).
We recommend exchanging electrolytic capacitors in the power supply every five years.
Coupling module F 7553 (only
H51q systems)
switch position for coding the rack according
to the resource type
Wiring, especially the watchdog signal,
refer to data sheets of the assembly kits
and the safety manual
Maintenance on supply, signal and data lines may only be executed by
qualified personnel with consideration of all ESD protection measures.
Before direct contact of these lines the maintenance personnel has to
be electrostatically discharged!