Specifications

DS7400Xi Ver. 3+ Reference Guide Copyright © 1995-96 Detection Systems, Inc. Page 83
General System Problems (Continued)
Symptom Probable Cause Possible Solution
#87 display = Battery Trouble
#87 display = Zone Trouble
#87 display = AC Power Failure
Fire Alarm displays “000”.
Fire Trouble, no zone number.
Fire Trouble ____________
zone number.
a) The battery failed a battery test.
b) The battery is defective.
c) The wiring to the battery is disconnect-
ed.
a) A zone is not responding to the control
panel.
b) The zone is programmed for “Trouble
on Open” and the loop is open.
There is a power failure and the panel is
operating on battery backup. If there is a
general power failure, wait for the power to
return. If there is not a general power fail-
ure in the building:
a) The transformer is unplugged.
b) The wiring from the transformer is de-
fective.
c) The circuit to the transformer is off or
defective.
d) The transformer is defective.
e) In some cases, the transformer may be
connected to a circuit controlled by a
switch or a circuit breaker that is peri-
odically turned off.
The Fire Alarm was caused by the “A” key.
When in Commercial Fire Mode, a ground
fault causes this display.
Fire zone wiring problems.
a) If there has just been a power failure, wait at least
two hours for the battery to recharge then per-
form a System Reset to re-test the battery and
clear the error.
b) Replace the battery.
c) Check wiring.
a) Check wiring to the zone.
or
If the zone is not to be used, remove from pro-
gramming.
b) If using Normally Closed contacts, re-program
zone for alarm on open.
or
If using Normally Open contacts and trouble on
open is desired, check for opens in the loop. Re-
move wiring and place an EOL resistor across
the zone to eliminate a problem with the control.
If the trouble goes away, the problem is in the
wiring or in a contact connected to the zone.
a) Plug the transformer in.
b) Check the wiring.
c) Check the circuit and circuit breakers.
d) Replace the transformer.
e) Connect to a circuit that is not controlled this way.
Use the System Reset command to clear the dis-
play.
See #87 Ground Fault display for solution.
If you try to disable the zone by reprogramming it,
you need to reset the control by either entering then
exiting programmer’s mode, or removing then restor-
ing power to the control panel.