Simplex 4100 - Page 87

SIMPLEX 4100 EWIS Page 79
INSTALLATION MANUAL
Document No.: 4100-M011 March 1998 Issue 1.0
FAULT / STATUS POSSIBLE CAUSE SOLUTION
Communication Fault
• Section of the RS 485
loop faulty or
disconnected from
module.
• Check section and
termination, or field
wiring.
• Check internal comms
connections.
• Ensure all modules are
plugged in.
Ensure modules are
installed in correct
order.
System Fault
• Module or CPU within
entire system faulty
• Identify MECP or
SECP display module
or CPU fault. Ref
module fault or CPU
fault instructions.
Module Fault
• Faulty Module • Replace Module
EWIS Zone Fault in
Amplifier / Speaker.
• Speaker cabling fault.
• Short or Open circuit
cable.
• No EOL resistor.
• No DC isolation
capacitor fitted
(incorrect speaker
type).
Amplifier Faulty
• Faulty amplifier
• Blown fuse.
• Check as instructed in
installation manual.
• Fit 10k EOL resistor.
• Fitted capacitors or
change speaker.
• Replace amplifier.
• Replace fuse.
5 amp 3AG.