Faults And Remedial Measures; Messages About The Mode - Siemens SIRIUS 3RW5 series Manual

Messages and diagnostics

7.4 Faults and remedial measures

7.4 Faults and remedial measures
The following table describes possible faults and remedies for the 3RW5 communication
module. Faults and remedies for the 3RW5 soft starter can be found in the Manual of the
3RW5 soft starter.
Fault No.*
303
*visible on the display of the 3RW5 HMI Standard
7.5

Messages about the mode

The following message bits in the "Soft starter diagnostics" data table (Page 82) clearly
indicate which control source currently has control priority:
● Automatic mode (
● Manual operation local (
● Manual operation local - input controlled (
● Manual operation local - HMI controlled (
● Manual operation local - PC controlled (
● Connection abort in manual mode (
Automatic Manual
Manual operation local
① ②
0 0
1 0
0 1
0 1
0 1
0 1
For more information on setting the operating mode, see chapter Operating modes and
master control function (Page 25).
62
Fault Cause
Bus error -
①
)
③ ④
0 0
0 0
0 0
1 0
0 1
0 0
Remedy
•
•
•
②
)
③
)
④
)
⑤
)
⑥
)
Control priority is with:
⑤ ⑥
0 0 Message is not permitted.
0 0 Modbus client (e.g. PLC) controlling via fieldbus.
0 1 No control source.
0 0 Digital input controlling.
0 0 HMI controlling.
1 0 PC controlled via local interface.
Check the bus connection.
Check the bus parameters.
The fault is acknowledged automatically
once it has been rectified.
SIRIUS 3RW5 Modbus TCP communication module
Manual, 03/2018, A5E43676481002A/RS-AA/001