
43
Fault type
Recognition
Repair step
Fault on input
No alarm from a particular channel
Check the interlocking
or output circuit
A certain output signal is missing
settings
A certain remote acknowledge
Check the external wiring
function out of work
Replace the concerned
input/output module
Replace the concerned
annunciator module
Check the internal wiring
When replacing a microprocessor module, the
programmed parameters can be moved to the
new module by moving the parameter memory
circuits from the old PC-boards to the new
module. The parameters of the SWPM 1A1B
module are stored in the circuit D7.
IMPORTANT!
The memory circuits have to be inserted in their
sockets so that the slot of the casing faces the
front side of the module. This will prevent the
memory circuits from being damaged.