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Author Topic: PWM Spindle Output Problem  (Read 1253 times)

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Offline SScnc

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PWM Spindle Output Problem
« on: June 28, 2012, 10:06:19 PM »
I'm using the Digispeed XL from Homann Designs with a GS3 AutomationDirect VFD and a 3600RPM motor, and I'm having a small problem. The spindle operates as expected, however the speed is not correct. I have a high and low speed. I've set the pulleys up, which the ratio box seems to have no effect on the PWM output. For instance my low speed is a max of 2000 and when I enter M3 S2000 the VFD is only running around 40hz or approx 2400 motor speed.

I'm not sure what exactly I need to adjust? Or what I'm missing here.

Any help is appreciated.

Thanks