I'm trying to get an MC60 controller and a treadmill motor working on my 14-inch bandsaw (Grizzly G0555LX). I replaced the original motor with an idler and pulley, with a belt to the treadmill motor. The pulley ratio between the motor and the idler is 3.2:1 so that when the motor is turning 5760 RPM the idler shaft (old motor shaft) is turning 1800 RPM, roughly the speed of the old motor . The flywheel that was on the motor on the treadmill has been removed and replaced with an aluminum pulley.I have an MC-60 speed controller that I had installed on my band saw...
At high motor RPM when I load the saw even a little bit I get a speed oscillation that cycles at around once per second or a little faster, between applying power and cutting power off. I have to back the speed way down to get the oscillation to stop. Have you run into this on your setup? Is your MC60 controller 'stock' without modification? My thought is that all the extra inertial load on the motor of the bandsaw wheels is putting the MC60 speed control loop into an unstable region and that somehow the speed control loop compensation on the MC60 needs to be modified. But maybe it is something else tripping inside the MC60 controller. All the LED's on the MC60 seem to be behaving, and I don't see the current limit LED or the SCR trigger LED turning on or off during this oscillation.
Have you noticed any oddities about using the MC60 controller on your bandsaw?
Jim