Hi experts and friends
here is MM440 VFD the alarm fault is F0070 once on command is given the fault is comming.
the VFD having the profibus communication.i tryed to acknowledge but its not resetted finaly i made
P2040 = 0. before its P2040=20.now on command is given drive will get on without fault F0070.but motor is not running. i checked P1000=6(speed referance) is there.can help me
It seems your drive has lost profibus communication. Most probably its a cable or Connector. Just to check, what is LED color on Profibus Module. I guess it is Orange, and if it is, then you must check all cables.
Recently, I faced one problem, in which, I was losing communication for almost 100 drives at same time and problem was small cable between two drives. In my case, I was able to reset fault and able to get drive online on PLC if I go one by one on each drive. But as soon as I give start command, all 100 drives were showing communication fault
So I recommend you to check cables, connectors, everything which can affect communication
Please say Thanks if your Problem is Solved.. :-)