Originally Posted by
sch
Treadmill motor with SCR drive will be fed chopped 60cycle AC, and
will not work very well at motor speeds below perhaps 600-1000rpm
because lower speeds will be seeing severely chopped 60 cycle
and will start cogging..
I have used them down to very low rpm with no problem.
If the motor has a tach, even better.
BTW, the switching frequency is 120hz as they are commonly switching a full wave bridge.
It would be 60hz for half wave.
KB and Baldor both sell the same product.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.