Siemens Micromaster 430 or MM430 Drive
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Jun 09, 2022 7:09 am
How can resolve problem F0021 Earth fault in siemens micromaster 430 or MM430 drive ?
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Jun 09, 2022 7:10 am
Cause : Fault occurs if the sum of the phase currents is higher than 5% of the nominal inverter current.
Check IGBT using multimeter.
Check drive hardware.
