Analogplus Trouble Shooting - Siemens Cerberus CS1140 Commissioning

6.2

AnalogPLUS trouble shooting

- Hard short
or
- Soft short
1. At the terminal select poll
function unit information
and check the number of
addresses
backwards, or
logger and reconfigure D-
Bus*,
Õ Check chain forwards/
backwards
2. At E3M11x isolate either
the beginning or end of the
line
Õ Number of faults
* In the case of a hard
short, the trouble message
Line break appears after 2
minutes
Displayed on LCD
84
Fire & Security Products
Siemens Building Technologies Group
Line short circuit
Loop line Stub line
Hard or soft short–> "Coll.
mode" after 2 minutes un-
less short is after last de-
vice
1. At the terminal select Poll
function unit information
and check the number of
addresses forwards/back-
wards, or
ger and reconfigure D-
forwards/
Bus*,
connect
Õ Check chain forwards /
backwards
2. Test line after each device
with a multimeter.
* In the case of a hard
short, the trouble message
Line break appears after 2
minutes
Line short circuit
Soft short
Possible fault
Line short circuit
and
Line unit in
collective mode
Stub line
connect log-
No collective mode
trouble message
but still trouble mes-
sage as below
Line break
Hard short
Remedy
Loop line
1. One short circuit and an
as yet not started-up de-
vice (ASIC)
2. Several short circuits
3. One short circuit and an
open line
4. One short circuit and
missing devices
Reconfigure D-Bus, wait 2
minutes, repeat procedure
if necessary
Line unit in collective mode
and
Line break and/or
Line short circuit
1. At the terminal, select Poll
function unit information
and check the number of
addresses forwards/back-
wards, or connect log-
ger and reconfigure D-
Bus*,
Õ Check chain forwards /
backwards
2. Test line after each device
with a multimeter.
e1249d 4
01.1999