Stankdaddy
Member
I have a Allen Bradley PowerFlex 525 Drive w/480V. It's connected to a 1/3 HP motor that turns an auger for a feeder. I can drive the motor speed by feeding a manual 4-20 signal to the Drive input so I've taken the control system out of the loop.
The issue that I have is that I can't stop the motor. Even at the 0 set point which should be 4mA, the motor still turns. 20 mA is 100, 4 should be 0 percent. When I increase it, it goes faster, but I can't make it stop completely.
Has anyone see this behavior before? This is eating my lunch. I'm leaning toward getting a new drive if I can't figure this out today.
Please advise.
The issue that I have is that I can't stop the motor. Even at the 0 set point which should be 4mA, the motor still turns. 20 mA is 100, 4 should be 0 percent. When I increase it, it goes faster, but I can't make it stop completely.
Has anyone see this behavior before? This is eating my lunch. I'm leaning toward getting a new drive if I can't figure this out today.
Please advise.
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