siemens micromaster 440
- Thread starter kulmaint
- Start date
JRW
Member
Trace the current and torque.
When you complete that, how does that compare to nameplate data.
Reply back with screenshots
When you complete that, how does that compare to nameplate data.
Reply back with screenshots
jraef
Member
It might be due to the fact that the 420 was not capable of Sensorless Vector Control and the 440 is, so if you have selected SVC but have not performed an auto tune procedure, the drive is using incomplete information for the motor equivalent circuit and likely overfluxing the motor.
JRW
Member
All a guess since he said he “cross checked “ all the parameters
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