Wiring the 220 spindle coolant pump?

NO you can’t. Use an SSR

In my case I used the multi-output of HY Huanyang VFD as input voltage when I use the spindle.

HY Huanyang VFD have an internal circuit and configurable option that can be use to control external device like IOT or SSR.

You can refer to my post in the forum for more information about wiring. Ref ( https://forum.onefinitycnc.com/…/information-to…/2647… ).

Wiring needed (refer to the diagram)

  • Connect HY pin +24v to HY pin FB
  • Connect HY pin FC to + connector of your IOT
  • Connect HY pin DCM to – connector of your IOT

Configure VFD (tell the vfd to trigger multi-output when spindle run)

  • PD052 SET 2 SET [DEFINE Multi-Output 3(FA, FB, FC function)]
  • PD053 SET 1 SET [DEFINE Multi-Output 4 (KA, KB function)]

Other reference for ssr but use differente pinout. ( How to use an SSR (Solid State Relay) )