Option 1: Phase L3 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 L3 or rectify voltage drop.

Option 2: The motor that is connected 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 Ie, 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.

I have the same problem with our 3RW44. Loss of Phase 3, System voltage too high.

The  displayed value measurement L1=440v, L2=440v, L3 = 10v

I checked the phase-to-phase voltage using a multimeter, 440v in each phase,

connections in the main source and motor side are all tight.

Everything is perfect except for the voltage detection.

can anybody help?

Hello,

Have you read & checked the points mentioned in earlier post?

Please switch on motor on another starter & check if something is wrong with motor.