Diagnosis and Messages
SIRIUS 3RW44 manual
GWA 4NEB 535 2195-02 DS 06
7-3
Incorrect start conditions (for product
version < *E04* devices)
Phase angle control failure (for product
version *E04* devices)
x 1. Error occurs without motor starting.
Cause:
- Motor has not been connected correctly.
- Inside delta circuit incorrectly configured.
- Ground fault present.
Remedy: Check and rectify wiring (see inside delta circuit wiring suggestions).
2. Error occurs during starting.
Cause:
- Start voltage too high
- Breakaway pulse set (incorrectly): instable motor start
(Only set breakaway pulse if absolutely necessary. In the case of pumps, for example, a
breakaway pulse can often cause misfiring.)
If there is an idle time of < 5 s since the last start, the 3RW44 starts with a higher start
voltage. In combination with a set breakaway pulse, this can lead to "Incorrect start
conditions".
Remedy: Adjust parameters or increase idle time.
Loss of phase L1 x Option 1:Phase L1 missing, drops or fails while motor is running.
A trip occurs due to a voltage drop in the permissible rated operational voltage of >15 %
>100 ms during starting, or >200 ms in bypass operation.
Remedy: Connect L1 or rectify voltage drop.
Option 2: The connected motor is too small and the error message is issued immediately
after switching to bridging mode.
Remedy: Set rated operating current for connected motor correctly or set to minimum (if
motor current is lower than 10 % of the set I
e
, the motor cannot be operated with this
starter).
Option 3: Starter used in IT system with ground fault monitoring:
3RW44, product version *E06* and the PROFIBUS DP communication module must not
be used in this network configuration.
Remedy: Replace starter with 3RW44, product version *E07*. This version can be used
in combination with the PROFIBUS DP communication module. However, the phase
voltage values (UL-N) and phase-to-phase voltage values (UL-L) may be displayed
incorrectly on the measured value display of the 3RW44.
Loss of phase L2 x Option 1: Phase L2 missing, drops or fails while motor is running.
A trip occurs due to a voltage drop in the permissible rated operational voltage of >15 %
>100 ms during starting, or >200 ms in bypass operation.
Remedy: Connect L2 or rectify voltage drop.
Option 2: The connected motor is too small and the error message is issued immediately
after switching to bridging mode.
Remedy: Set rated operating current for connected motor correctly or set to minimum (if
motor current is lower than 10 % of the configured I
e, the motor cannot be operated with
this starter).
Option 3: Starter used in IT system with ground fault monitoring:
3RW44, product version *E06* and the PROFIBUS DP communication module must
not be used in this network configuration.
Remedy: Replace starter with 3RW44, product version *E07*. This version can be used
in combination with the PROFIBUS DP communication module. However, the phase
voltage values (UL-N) and phase-to-phase voltage values (UL-L) may be displayed
incorrectly on the measured value display of the 3RW44.
Message
Warning
Error without restart
Error with restart
Cause / Remedy
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