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Fault Finding Table
Faults
(on the LCD)
CHECK : Fan -x-
CHECK : Valves and Fans
FAULT : Airflow Line -x-
FAULT : Data Transfer Device -
x-
Note: The correlation of the
different "device" nos. to the
system components is listed on the
rear side of the door of the smoke
detection panel
only fire alarm panel:
FAULT : Data Transfer
FAULT : Dirt in Line -x-
FAULT : Emergency Supply
FAULT : Main Supply
FAULT : Smoke Detector Line -
x-
FIRE : Line -x-
(but smoke cannot be verified)
Fault Finding Instructions SDS26
Possible Reasons
All 3- way valves were shortly
closed.
Fuse(s) of fan aggregate on
power supply module defect
Fan -x- defect
All 3- way valves in wrong
position.
Both fan aggregates are defect.
3- way valve in wrong position. Check position of 3- way
Detection line is clogged.
Defective fuse in device -x-.
Device address no. of device -x-
is not correctly adjusted.
Cable connection to device -x-
(RS-485-Bus) is incorrect
Device -x- is defective
Fuse in repeater panel is
defective.
Connection (RS-485-Bus) at
repeater panel is incorrect
Smoke detector with internal
residue.
Breakdown of ship emergency
power supply circuit on ship.
Breakdown of ship main power
supply circuit on ship.
Smoke detector -x- is not
installed.
Smoke detector is defective.
ID no. x is attached to more
than one smoke detector
After cleaning the smoke
detector, the labyrinth has not
been correctly reassembled.
16.06.09
safetec
Correction
1. Check position of 3-way
valves
2. Switch-over to stand-by fan
aggregate
Correct faults
Exchange fuse
Exchange fan
Set 3- way valves in air
sampling position
Repair or exchange fan
aggregates
valve
Send compressed air through
detection line. Ensure all 3- way
valves are closed in way to
smoke detection panel during
this procedure
1. Eliminate fault
2. Exchange fuse
Adjust correct device address
no. (refer to section 6 )
Check cable connection
Replace device -x-
1. Eliminate fault
2. Exchange fuse
Check cable connections
Clean smoke detector
Re-establish circuit
Re-establish circuit
Insert smoke detector
Change smoke detector
Change ID nos. of smoke
detector to correct setting
( refer to 5.3.2 )
Ensure, that the snapping lugs
of the labyrinth are snapped
completely over the PCB
( refer to section 5.3.3 )
Seite 2 von 13
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