Fire Alarm Control Panel IQ8Control C / M
FB 798951.10.GB0 / 04.15
121
12.1 Trouble messages in the display
Up to three works-programmed trouble messages with 8 characters each can be displayed in the second line of
the display. If a clear text trouble message applying to an event is displayed, this trouble message is shown
automatically in the display or can be activated with the function key >Param/AT<.
Trouble
text
Possible cause
1st. measure
2nd. measure
UBext
UB
ext
fuse blown. Short circuit
in UB
ext
power supply.
Check whether fuse blown or short
circuit.
---
UBint
power supply Short circuit in
UB
int
power supply.
Check fuse or remove components
until message disappears.
---
ULinie
U
line
fuse blown.
Check fuse and replace if
necessary.
---
short
Brief loss of mains power.
Check mains supply and mains
fuse.
---
long
Loss of mains power.
Check mains supply and mains
fuse.
---
ext. PSU
Failure of supplementary
external power supply.
Check external power supply unit.
Check monitor line.
paper out
The internal printer has run
out of paper.
Replace the printer paper roll.
---
not ready
The paper retaining lever has
not been returned to its
original position after paper
change.
Set lever to correct position.
---
not voltage
The internal printer has no
power supply.
Check wiring of UB
ext
and fuse.
---
short cct
A short circuit has been
detected in the corresponding
primary loop.
Check the indicated primary loop
(see Prloop No.).
---
short/open
A short or open circuit has
been detected in the
corresponding primary loop.
Check the indicated primary loop
(see Prloop No.).
---
com. err
A communications error has
been detected in the
corresponding primary loop.
Check detector contacts, replace
detector and/or necessary module if
start-up.
---