Asking about AB Softstarter

  • Thread starter mohammed abdelsttar
  • Start date
M

Thread Starter

mohammed abdelsttar

I have AB softstarter 180A, 380VAC. When I connected it to a 90KW motor it worked good on high speed, but on low speed it had a fault message (FAULT 41.LOSS PHASE). Although I connected the power terminal very good, where is the problem?
 
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