Busch-Jaeger Busch-Wachter 180 Betriebsanleitung Seite 65

Fault Elimination
Diagnosis
Light switches ON
and OFF continuously: - FM Comfort Watchdog
Automatic unsched-
uled switching:
Cause/Remedy
FM Insert 6401U-102 only:
actuates transformers, relays/
contactors without surge
arrester; fluorescent and
economy lamps; install an RC
element (Type No. 6899)
parallel to connected con-
sumer.
- Animals (e.g., cats traverse
the detection zone.
- Switch-on following power
failure. Is normal for the
switch-off delay period set.
- Heat is introduced into the
detection zone as a result of
reflection from light-coloured
walls or reflected surfaces.
GB