Hi, I don't know much about these controllers but I have a question with regard to them.
Today I noticed something wierd, well wierd to me at least.
Here is the situation, please explain why I get voltage if you can.
Motor controller is soft start. Motor has a disconnect switch right by the motor. Soft start controller gets supply from a breaker, controller and breaker are housed in a MCC. Motor operates at 600 volt 3 phase.
With the main breaker on and I don't hit the run button. The motor is not operating. Ok thats right. But when I go to the disconnect and open it, I get 600 volts across all three phases.
Why do I get voltage at the disconnect when the run button is not pressed?
When I close the disconnect the motor does not run. When the run button is pressed the motor operates correctly.
There is nothing wrong with this motor or controller. It works good.
Just seems wierd to me why I get voltage when its not running. I figure its because of the controller but it would be nice if someone could explain it to me please.
Can anybody help me out?
