Firstly, I apologies for having to ask such a basic question.
I'm looking to buy a controller for a permanent magnet motor. The specs of the motor are: 200VDC, 1.5HP, 5700RPM, 7.6A, form factor: 1.0
I am trying to decide between two controllers that I have seen on ebay:
The cheaper one has the following specs: DC 0-220V (output), 4A, 500W
The more expensive has these specs: DC 0-220V, 8A, 800W
My question is: what will happen if I tried to run the motor with the first controller?
The motor draws 7.6A but the controller is rated at 4A. Will it run at half torque? Will the motor cause damage to the controller/vice versa?
(…or am I better off getting the 800W controller?)
Best Answer
The controller rated at 4 amps won't be suitable for your motor. You shouldn't attempt to overload this smaller controller, unless you have a lot of in depth knowledge of motors and controllers.
The direct answer is : the cheaper (4 amp) controller will fail with your load if you try to use the motor at full load.