Jasondelane
Lifetime Supporting Member
I've got 7 Powerflex 700 drives running a varying number of motors on each drive. I have one drive that is consistently running higher speed than the others, enough to cause trouble. The speed reference is ControlNet port 5. I've confirmed that the speed being sent to the drive is the same as the one next to it, but their Hz are differing by as much as 25-30%. It's constantly tripping out for overvoltage due to the speed difference. I've reset the drive and reentered all the parameters, and verified everything is set up the same as the rest. I'm using V/Hz since the drive is running two motors.
My temporary patch is to go to the ControlNet adapter parameter 27 and set it at 75% to get it close to what it should be, although its still running too fast.
Controller is PLC5.
I'm just out of ideas.
My temporary patch is to go to the ControlNet adapter parameter 27 and set it at 75% to get it close to what it should be, although its still running too fast.
Controller is PLC5.
I'm just out of ideas.