Operation Manual
FT1020G3 Rev 2.4
66
FAULT: Interlocking input AAA-PP
An interlocking input is not activated within the time set for fault
activation (5-255 seconds). The time is counted from the activation of
the output in the interlocking combination, area AAA / point PP.
FAULT: Internal short circuit COM loop x, Control Unit xx
Short-circuit on the connection (ribbon cable) to or between the
Expansion Boards (458x) in the Control Unit xx (FT1020G3).
FAULT: L-C mixed COM loop x, Control Unit xx
The two wires L (SA) and C (SB) for COM-loop no. x (0-3), in Control
Unit no. xx, have been mixed (alternated). Check / correct the wire
FAULT: Loop unit, Technical number xxxxxx
The unit (e.g. a customized unit
51
) is not functioning, i.e. the unit is
faulty. The unit has to be replaced.
FAULT: Loop unit zone: xxx address: xx
technical number xxxxxx
The unit is not working properly, i.e. the unit may be faulty. The unit has
to be replaced.
FAULT: Loop unit zone: xxx address: xx and zone: yyy address:yy
technical number xxxxxx
The unit (not a detector) is not working properly, i.e. the unit may be
faulty. The unit has to be replaced.
FAULT: Low battery capacity, Control Unit xx
Battery (in Control Unit no. xx) internal resistance > 0.6 Ω.
The “Resistance in battery circuit” value shown in menu H5/A4 is >
600mV.
• The battery might be too old.
• Cables, fuses etc. for externally placed batteries may cause a
voltage drop.
• Battery cables are long and the conductor is less than 2.5mm
• Check / adjust the power supply voltage (24 V
DC
).
• Check the charging voltage over the battery respectively (13.5-
13.8 depending on the actual charging step).
• Check the voltage over a disconnected battery (fully charged >
13 V).
• In the New Zealand convention only: The battery charging is
turned off for 60 minutes every 24 hours to perform auto battery
test. A battery voltage < 24.4 V during these 60 minutes will
generate a fault.
If a fault is generated it will be automatically Serviced after these
60 minutes.
The battery should normally be replaced.
Note: The battery check is performed every 4
th
hour, i.e. it can take up
to 4 hours until the fault status is "corrected".
51
Customised units may include the new 19’ rack display or field modules e.g. 1200-1203, 1207-1210, etc.
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