Hey

As I said in some other posts, I retrofit a Schaublin 125 lathe with EMC2.

On this machine the spindle speed is controlled by 2 different motor 
speeds and a mechanical "stepless" gear.

Instead of programming a hal component to use this 'stepless" gear, I 
would like to use a VFD instead. The motor and the gear will be set to 
its highest speed and then the VFD can control the speed of the motor.

As I use the parallel port I would like to control the speed by PWM 
instead of a analog 0-10V signal (I know I can convert PWM to analog 
with a low pass filter).

Do VFD exist which can be controlled by PWM? recommendations?

Motor data:
Low speed, 750 rpm, 0.9 kW
High speed, 1500 rpm, 3.0 kW

Thomas



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