Operation Manual
FT128 Rev 2.4
62
Note: As a warning, faults (and disablements) are also indicated by a 2-sec. beep when
an open FDCIE door is being closed.
16.1 Fault Messages
Below follows a list of all fault messages, in alphabetical order:
FAULT: 24 V for external equipment
Fuse "F9" on the main board 4556 is blown.
FAULT: 24 V for routing equipment
Fuse "F7" on the main board 4556 is blown.
Also indicated by LED "L15" blinking.
FAULT: 24 V output, techn address xxx
Valid for an external power supply 3366 connected on the COM loop.
The output might be turned off or current output limit is exceeded.
FAULT: AAU x
AAU=1736 (Alert Annunciation Unit)
The unit is programmed as another unit type different to the type configured in the
SSD or fault in the unit.
FAULT: Battery
The battery check is performed every 14
th
minute (every 30
th
second in the New
Zealand convention or when the fault is generated).
• Battery voltage is below 18.9 V (24.4 V in New Zealand convention).
• Batteries (2 x 12 V) are missing or not correctly connected.
• Fuse F2 on the main board 4456 is blown.
• In line fuse between the two batteries is blown.
FAULT: Battery charging
The battery charging function is not working properly. The main board 4556 may
have to be replaced.
FAULT: Battery, tech. address xxx
The charging function in the external power supply 3366 or 4466 connected on
the COM loop is not functioning.
• Batteries (2 x 12 V) are missing or not correctly connected.
• Battery fuse is blown
FAULT: Battery, loop unit zz-aa
Press to see the technical address.
FAULT: Battery, techn address xxx
zz-aa = Zone-Address. xxx = COM loop address.
This is valid for a Wireless smoke detector 4611.
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