Man-1078_Sigma_CP_22
Page 20 of 24
45B
20.7 Sys fuse fault
Indicates that the total power rating of the power supply has been exceeded and that the system fuse has
come into operation. Remove and review all loads and re-connect one at a time until over rated circuit trips
fuse to identify troublesome circuit.
46B
20.8 S1 fault and S2 fault
Indicates a short or open circuit on sounder outputs. Remove wiring and refit end of line resistors. Check
sounder circuit wiring.
47B
20.9 Comms fault
Indicates that communication has been lost with a repeater panel or Ancillary board. Check for comms fault
at all repeaters and ancillary boards to identify the source of the problem.
20B
Summary of Contents for Sigma CP K Series
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