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FAILuRE
21
ADICOS M-BUSMASTER XF
420-2410-003 EN20
9 Failure
What to do, if ...
Description
Remedy
... the “Overload” light is illu
-
minated
The M-Bus output is over
-
loaded
–
Remove the consumer
–
Add the M-Bus re
-
peater if necessary
... no detector is communi
-
cating
–
Line interrupted
–
Power supply to de
-
tector(s) is disrupted
–
No connection to
the service PC
–
Defect in M-BUS-
MASTER
–
Check M-Bus voltage
–
Check bus lines for
breakage/disruptions
–
Measure voltage at
M-Bus output (set
-
point: 35 … 38 V
DC
)
–
Check connection
to service PC
–
Replace the
M-Busmaster
... single detectors are not
communicating
–
Line interrupted
–
Power supply to de
-
tector(s) is disrupted
–
Measure the volt
-
age in the terminal
block connector
–
Check that voltage is
being supplied and
there is M-Bus voltage