NevisGroup
Member
Hello all,
I just replaced a dead Yaskawa F7 drive with an Automation Direct GS4
This is driving a Roots screw type vacuum pump with an internal motor.
The motor nameplate says 75 Volts at 60Hz max 50 Amps
I have been fiddling with the Volts/Hertz settings in the drive but I am not having any luck. I don't have any reason to thing the motor is bad. (The drive was damaged when it was wired incorrectly)
So at this point I have the max voltage turned down to 20 volts. The motor will start to spin up but the current starts to climb with the voltage until it is 70 amps and the drive shuts down on overload.
This is actually the second time that I have run into this. I had another motor that did the same thing on a mill. We just replaced the motor and called it a day.
What am I missing about this motor?
I just replaced a dead Yaskawa F7 drive with an Automation Direct GS4
This is driving a Roots screw type vacuum pump with an internal motor.
The motor nameplate says 75 Volts at 60Hz max 50 Amps
I have been fiddling with the Volts/Hertz settings in the drive but I am not having any luck. I don't have any reason to thing the motor is bad. (The drive was damaged when it was wired incorrectly)
So at this point I have the max voltage turned down to 20 volts. The motor will start to spin up but the current starts to climb with the voltage until it is 70 amps and the drive shuts down on overload.
This is actually the second time that I have run into this. I had another motor that did the same thing on a mill. We just replaced the motor and called it a day.
What am I missing about this motor?