93-530-70 Issue 0 Page 37 of 44 © Protec Fire Detection PLC 2007
27.0 Fault Rectification Guidelines
Detector Circuit Open / Short
Circuit
Disconnect the faulty zone and re-connect the end of line unit (resistive or
capacitive) directly at the 3300 zone terminals. If the zone fault clears the zone
wiring and detector base connections should be thoroughly investigated, and
any faults rectified. In particular check that all detectors are connected properly
into their bases.
If the fault remains check the correct end of line monitoring is programmed,
ensure it is set-up for the type of end of line monitoring being used (resistive or
capacitive). If the fault still remains either the end of line, or the Main PCB is
faulty.
EEPROM checksum fault
A checksum error has been detected in the site data stored in EEPROM. Enter
access level 2 and press ‘Silence Alarms’ then ‘Reset Panel’ to clear the fault. If
it re-appears within 10 minutes the Main PCB is suspect and should be
replaced.
PROGRAM checksum fault
A checksum error has been detected in the system program memory. Enter
access level 2 and press ‘Silence Alarms’ then ‘Reset Panel’ to clear the fault. If
it re-appears within 3 minutes the Main PCB is suspect and should be replaced.
WATCHDOG fault
A watchdog time-out has been detected by the program. Enter access level 2
and press ‘Silence Alarms’ then ‘Reset Panel’ to clear the fault. If the fault
persists the Main PCB is suspect and should be replaced.
SW_ERROR fault
An expected software function has not been carried out. Enter access level 2
and press ‘Silence Alarms’ then ‘Reset Panel’ to clear the fault. If the fault
persists the Main PCB is suspect and should be replaced.
Expansion Node fault
A node has been detected as missing or faulty on either the internal or external
expansion ports. Check all nodes to ensure their address switches are all
correct (set from address 1 onwards). If so determine which node is missing or
faulty, then rectify the problem on that node.
Alarm Open / Short Circuit Fault
Disconnect the faulty alarm circuit and re-connect the end of line unit directly at
the 3300 alarm terminals. If the alarm fault clears the alarm wiring and sounder
connections should be thoroughly investigated, and any faults rectified. In
particular ensure all sounders are polarity protected and suppressed.
If the fault remains the Main PCB is suspect and should be replaced.
Power Supply Fault
If the mains has failed first verify the mains supply to the panel is correct. If it is
check the mains fuse (FS2 on the power supply PCB) and replace it if it has
ruptured (1A HRC 20mm).
If a battery over-voltage condition exists the power supply PCB is suspect and
should be replaced.
If a battery under-voltage condition exists replace the batteries with a new fully
charged set. If the fault does not clear within two hours the power supply PCB
is suspect and should be replaced
If a battery faulty condition exists verify the connections to the batteries are
sound. If the connections are sound and the fault persists replace the batteries
with two new, fully charged ones and leave to charge for two hours.
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