Quote Originally Posted by Clive S View Post
NO. As you will need an isolated pot, -- https://www.ebay.co.uk/itm/1-3KHZ-to...k5zL:rk:1:pf:0

with an isolated small power supply https://www.ebay.co.uk/itm/AC-DC-Con...72.m2749.l2649


and configure Lcnc to give you a pwm signal.

Unless the MX3660 pot is already isolated.
14.3. Connecting the Analog Output
The analog output connection is optional. The MX3660 3-axis stepper drive also comes with an opto-isolated
analog output (Figure 3) to allow control of an external analog device, such as a VFD for spindle control. Supply
voltage for the analog device is 5-15 VDC, and the output voltage signal is 0 to (Analog Supply Voltage minus 1.1
VDC).

It looks like it already is.

So is it just a case of configuring LinuxCNC to give me the PWM signal as per the documentation?