Spindle PWM control missing (parameter 422)

Kopf

Hello,

I'm trying to enable PWM or 0-10V control for my spindle but I can't find anywhere. Looking at the DM500 user manual page 38 it's supposed to have the parameter #422 "definition of PWM level" but it's not present on my controller.

I have updated to the latest firmware but still doesn't appear.

Any help is appreciated. Thanks.

Kopf

Oh, really?! That's no good. How can I control a 0-10V spindle with 4 outputs? Do I need an additional device to convert the output into steps of a 0-10V?
Also, would the controller interpret S code to set the spindle outputs? If yes, how's that linked to the 4 outputs?

Kopf

Thanks, I did test the outputs and after setting the parameter S220 (Ignore S Code) to 0 and the Y02, Y03 and Y04 do change according to the S**** parameter from my G-Code in 8 proportional steps. Because my spindle controller does not have the Low/Medium/High inputs I presume I would need to manufacture a device to convert such steps into 0-10V steps to communicate with my spindle.

Alternatively, as there's no analog output in the device, would be possible on a new firmware to make one of the digital outputs (Y02 for example) to generate a PWM (1kHz to 10kHz) proportional to the spindle speed to follow the S-Code? This way I can convert the PWM into a 0-10V for my spindle in more than only 8 steps. I still do need to purchase or manufacture a device but would be much better.

Thanks

Kopf

Thank you for the suggestion but it would be too complex and expensive to setup this way. I'll see if I can find an alternative but I would suggest having an option for the future hardware releases to always have the analog 0-10V or include the PWM at least. I'll try to contact the vendor to see what options they can offer me.

Regards,