User Guide

Faults
Fault conditions are often the result of minor
installation errors or misinterpretation of the
equipment being installed. The following points
outline the most common installation and
commissioning faults.
a.
If a tamper TA or Personal Attack PA
fault is present on the system, a
flashing indication is given of first fault,
it will go to a lock out condition
(showing the appropriate indication).
Rectify the fault and offer the keyfob to
the panel to remove the fault.
b. The most common cause of a zone not
responding to detection is incorrect
wiring. Normally closed detectors must
be wired together in a series loop
before connecting into the appropriate
ZONE terminals. Tampers are series
wired in the same manner.
c. Where a permanent zone fault is
showing and the loop resistance is
found to be in order, the most probable
cause is a short circuit between the
zone wiring and the tamper wiring.
When measured with a multimeter the
series resistance between the zone
and tamper wiring should be infinitely
high.
d. If totally lost as to the cause of a fault,
remove ALL wiring from the Board.
Refit the 9-links and test the system.
Never fit links to any positions other
than those marked on the Board.
e. Before testing or replacing any fuses,
ALL power must be removed. Fuses
which fail continually are almost
certainly the result of a short circuit or
low resistance across the 13V supply
or external siren (bell box) supply
(terminal D).
Whenever working close to the mains
supply or connector, you should
exercise extreme caution always
isolate the mains supply before
removing the control panel covers.
Where normally open and closed
detectors are being used these must
be wired to a zone in the manner
shown.
The example below shows how to wire
normally open detectors on zones 3.
The example below shows how to wire normally
open detector on zones 3 and a normally closed
detector on zone 4.
f. Where Pressure mats are being used
these must be connected to a zone in
the manner shown. The example below
shows pressure mats connected to
zones 3.
18 4188-753 issue 1_1/03
Engineering information
J2
214
3
65
PA
+
-
TAMP
+13V 0V
Board
J1
Panel
Normally open
detectors
J2
214
3
65
PA
+
-
TAMP
+13V 0V
Board
J1
Panel
Normally open
detectors
Normally closed
detector
J2
214
3
65
PA
+
-
TAMP
+13V 0V
Board
J1
Panel
Pressure Mats