I'll probably be switching from a 12Nm stepper to a 400W servo with a gearbox, as I need more torque over a wide range of speeds. Curious how many people here used servos before? I'm mostly curious about STEP / DIR control as the voltages mentioned in the manual are anything between 12 - 24VDC, so I can't connect the PIC directly to the driver. I'm thinking optocouplers with an outside 12VDC would work (triggered by the PWM pin output from the PIC), but the analogue -/+10VDC input for speed control looks interesting as well.

This is the driver and motor:

http://www.leadshine.com/UploadFile/Down/EL5-Md.pdf

http://www.leadshine.com/UploadFile/...age_Servos.pdf

Any tips would be very helpful.

Regards,
T.