Siemens SIRIUS 3RW52 - Page 178

Messages and diagnostics
9.4 Faults and remedial actions of the 3RW52 soft starter
SIRIUS 3RW52 Soft Starter
178 Equipment Manual, 04/2020, A5E35630451002A/RS-AE/005
Error
No.
1)
Error
Cause
Remedy
RESET MODE
Manual
2)
Remote
3)
Auto
4)
381 Self-test error Irrecoverable error detected
following self-diagnostics
(self-test, contactor contacts,
switching element, etc.).
Switch off the power supply
(control supply voltage) for at
least 5 seconds and switch it
on again. If the fault is still
present proceed as follows:
x Please contact Technical
Support (Support Request
(Page 12)).
x Replace the device.
- - -
1408 Missing load No current flow is detected
in the motor feeder after an
ON command.
x Main circuit interrupted
(fuse, motor starter
protector)
x Motor contactor or
contactor control is
defective
x No load
Acknowledgment once the
cause has been rectified.
x x -
1409
Loss of phase L1
The main power monitoring
detects a phase failure.
Acknowledgment once the
cause has been rectified.
x x -
1410
Loss of phase L2
1411
Loss of phase L3
1417 Bypass defective
x Bypass defective
x The error can also be
generated by
successive, brief
interruptions of the
supply voltage (control
supply voltage).
Switch off the power supply
(control supply voltage) for at
least 5 seconds and switch it
on again. If the fault is still
present proceed as follows:
x Please contact Technical
Support (Support Request
(Page 12)).
x Check bypasses for L1,
L2 and L3 and replace
defective bypasses.
- - -
1418 Bypass protective
shutoff
An excessively high current
has occurred in bypass
mode.
x Check the motor.
x Check the dimensioning of
the soft starter.
x Acknowledgment after
cooling down
x x -