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MM440 tripping without alarm

9/27/2013 10:06 AM	Rate (0)
Emiljani Advanced Member Joined: 7/2/2010 Last visit: 5/9/2025 Posts: 53 Rating: (0)	Hello ! On a 30 KW MM440 (parameter set attached) when i give the start command, it gives directly fault (Digital output no 1) and does not start, this happened after a voltage fluctuation we had in the power system. It does not register any fault on r 0947. Anyone have any idea what cause this Attachment 314.05.zip (232 Downloads)

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9/27/2013 11:42 AM	Rate (0)
rajavarman Posts: 11 Rating: (0)	hello, pls check the parameter r947 index 3. its show fault F003 (Under voltage ) Pls correct the supply source and if its is a Fan or pump appliocation , you can enable kinetic buffer.(P1240 = 3)
rajavarman Posts: 11 Rating: (0)
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