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Old January 19th, 2011, 03:34 PM   #1
Saudi Arabia

bornwild is offline
Join Date: May 2010
Location: Riyadh
Posts: 315
power flex 4 fault 042

hey guys,

I need urgent help. We have one power flex 4 and it is showing fault 042. checked the manual. it says check for short b etween u w phase. I cheked everythin ok. Check motor resistance. all ok. WHen i disconnect the motor the drive is increasin its frequency. Wht could be problem .Please help
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