Instruction manual

7-7
Procedure M
If the green AC LED is “ON”, yellow TROUBLE LED is “ON”, and D60, GF LED is “ON”, a ground
fault condition exists on the output wiring. A GF trouble condition might be caused by:
1. Appliance wiring touching conduit.
2. Improper Installation of an appliance(s).
Perform the following:
Disconnect appliances from the strobe and speaker connection on the motherboard.
Troubleshoot NAC circuits by checking for a resistance reading other than infinity between the
appliance leads and the conduit.
Section 7-2 – SP40/2 Panel Wiring Diagram
Figure 7-2 on Page 7-8 illustrates the SP40/2 panel wiring between modules. Note that the wires
are color coded. If modules have been replaced and trouble exists or improper wiring is
suspected, use this wiring diagram to trace the proper wiring route.