8.3 Troubleshooting For Com150 / Com 190 Communications Module - Siemens SENTRON 3WA1 Manual

8.3 Troubleshooting for COM150 / COM 190 communications
module
Fault
Network parameters (e.g. IP
addresses) cannot be changed during
commissioning.
Network parameters (e.g. IP
addresses) cannot be changed using
SENTRON powerconfig configuration
software during commissioning.
Circuit breakers cannot be
closed/opened via the communication
connection.
LEDs flash on one installed
communications module,
communication is not possible.
LEDs flash on two installed
communications modules,
communication is not possible.
The communications module cannot
be started up properly or it reboots
sporadically.
CubicleBUS nodes fail sporadically,
2
CubicleBUS LED (CUB) flashes
2
green sporadically or is continuously
lit up green.
Sporadically, not all circuit breaker
data are available.
Sporadically, not all circuit breaker
data are available, CubicleBUS
(CUB) flashes red sporadically or is
continuously lit up red.
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06

8.3 Troubleshooting for COM150 / COM 190 communications module

Cause
Write protection is active.
Edit mode is inactive by default in the
device search (F11) of the SENTRON
powerconfig configuration software.
Remote switching protection is active. Connect the RSP (remote switching
Role assignment is incorrect.
Role assignment is incorrect.
The 24 V power supply is not
adequately dimensioned.
Cubicle-BUS connection is
2
interrupted.
Cubicle-BUS is not terminated with a
2
terminating resistor.
Modbus RTU terminating resistor is
not installed.
Disturbance due to high EMC
LED interference
2
Troubleshooting
Remedy
Set the slide switch on the
communications module to the
position (open padlock). For more
information, see Chapter Access
protection functions (Page 163).
Activate (unlock) edit mode in the
device search of the SENTRON
powerconfig configuration software.
protection) pins on the X62 connector
of the communications module. For
more information, see Chapter Access
protection functions (Page 163).
The communications module has a
slide switch for role A or role B.
Assign role A using the slide switch.
The communications module has a
slide switch for role A or role B for
assigning role A to one module and
role B to the other.
Remote switching protection and the
position signaling switch modules of
the withdrawable circuit breaker are
connected to the module with role A.
Use a larger 24 V power supply unit
or a separate power supply unit for
the communications module.
Check the points of contact and
connectors of the CubicleBUS
reconnect, if necessary.
Connect the supplied terminating
resistor (S, 120 Ω) to the last node of
the CubicleBUS .
2
Terminate the last module on the
CubicleBUS with the terminating
2
resistor.
Implement suitable measures to
reduce EMC interference.
and
2
547