Page 89 of 91
Rev. 4.20
BATTERY/FUSE FAULT
1.
The fuse related to the batteries
has broken down.
2.
the batteries are disconnected.
3.
the batteries have broken down.
1.
Check the fuse related to the batteries.
2.
Check the batteries.
3.
Check the batteries.
POWER SUPPLY MISSING
1.
Power supply missing.
2.
power supply broken fuse.
3.
broken power supplier 30V.
1.
Check the connection to the power supply
220V network of the control panel.
2.
Check the fuse of the power supply block.
3.
Check the voltage presence on the output
cables of the power supply block.
LOW DC POWER
Problems to the power supply circuit.
Check the connections between the power supply
block and the control panel motherboard.
Check the voltages between the clip – and the clips +
and FAULT; the voltage must be of 30V. if the
measured voltage is lower, take the voltage back to
30V acting on the trimmer placed on the power
supply block.
BAT. CHARGER FAULT
Wrong connection of batteries.
Check that the two batteries are installed properly
(in series and between –B1 and +B2).
DIRTY SMOKE DETEC.
The smoke sensor has generated
this fault signal because it has
revealed dirt or dust in its chamber
(superior to about 80%).
The smoke sensor will continue to function but it
requires a careful cleaning of its chamber. It is
necessary to disassemble it, take it off the line and
then re-insert into the loop.
The external power supply fuse is
faulty.
Check the fuse of the external power supply unit and
substitute it.
The auxiliary power supply is faulty
or the current supply source is
interrupted.
Verify the current tension which should be at
27,6Vcc. In case of missing tension, verify the power
continuance between the line and the power supplì
unit.
FUSE/EXTRN.POWER
FAULT
The function “use of power supply”
may be enabled even without any
external power supply connected.
Verify and disable the function if it is not utilized.
(chapter
0).
Short circuit between the –L and the
GND.
Check if exist a dispersion on the ground of loop
negative: at loop disconnected from control panel,
check with tester that the impedance between loop
negative and the ground is not infinity.
In the case of impedance of infinity value, check that
the shield is connected at a clip 1 and not on the clip
4 of the base of detectors.
-L/SHI SHORT CIR. L
Short circuit between the +L and the
GND.
Check if exist a dispersion on the ground of loop
positive: at loop disconnected from control panel,
check with tester that the impedance between loop
positive and the ground is not infinity.
In the case of impedance of infinity value, check that
the shield is connected at a clip 1 and not on the clip
4 of the base of detectors.