F4000 LCD Operator's Manual
Document No: LT0117
Operating Instructions - System Functions
Page 6-8
19 April 2002
Issue 2.38
6.5.3.2
FAULT AND ALARM TEST:
The system test then applies "FAULT" and "ALARM" test signals to all enabled responder
inputs. The test is deemed complete when all Responders report that their tests have
passed.
The test fails either if all Responders do not complete their tests within a certain time, or if at
any time any of the tested circuits go into the incorrect state. If a failure is detected, this is
annunciated by the test fail cadence on the buzzer, a flashing FLT indicator on the failed
zone, and a fail message on the LCD. This suspends the test.
Press "ACK" to silence the buzzer and clear the fail message from the LCD. This aborts the
test. The SYSTEM FAULT indicator remains ON and can only be turned off by a successful
re-test.
If there is a test failure on a circuit input then the FLT LED indicator for the zone comes on
flashing if the applied test alarm or test fault signals were NOT detected; or the ALM and
FLT LED indicators come on flashing if there are any unexpected alarms or faults
respectively.
The ideal response to a system test is no new zone indicators ON rather than any indicators
on flashing, and a "System test passed. Press ACK key" message on the LCD.
If the system includes Analogue Addressable Responders (AARs) or Multiprotocol
Responders (MPRs), a successful test can take up to 2.5 minutes, otherwise about 1 minute
is required.
6.5.4 TEST
ABORT
Pressing the "ACK" key during the test terminates the SYSTEM TEST.
Detection of an ALARM condition which seems unrelated to the applied test alarm (ie
possibly a genuine alarm) holds the test at the affected Responder and causes the ALM and
FLT indicators to flash for the zone in alarm, along with the FLT indicators for zones mapped
to by the circuit under test on the same responder.
However, since it is not established that it is a genuine alarm no MAF/ANCIL/BELL or other
mapped outputs will be activated. Pressing the "ACK" key takes the FIP out of test mode,
turning off the ALM indicator and buzzer if the alarm is no longer present. The system
reverts to normal operation. If the alarm is still present, this will be detected and
annunciated in the usual way.
Detection of FAULT conditions which are unrelated to the applied test fault conditions are
treated similarly, except that just the fault indicator of the suspect zone, and the zones
mapped to by the circuit under test on the same responder, come on flashing.
If the circuit under test is not mapped to a displayed zone, only the Service company can
determine the circuit failure from the internal log or by reviewing the history on the LCD.
If the circuit under test is not mapped to a zone at all, then the test is not terminated by a
failure but indicated at the end of the test by the buzzer and LCD "Test Fail" message.
Again the circuit failure can only be determined from the internal log, or by viewing the
history on the LCD.
