CSMIO/IP-M - wiring sanity check needed

[Washout]

Thanks Neale

Sounds like using the 24V PSU feeds is OK then and I won't get a whiff of magic smoke :)

I guess another question is whether the 24V used is safe enough to use with the probe and/or tool height touch plate given it will be going through the spindle/tool (and me if I'm holding the plate onto the workpiece/bed)?

[JAZZCNC]

Neale's answer pretty much says it all regards the difference between Ip-M and your old controller. But the main reason you have to provide power to the Inputs and outputs is for isolation and cross interference. It also gives more flexabilty to what sensors can be used IE: Pnp Npn etc

Using 24V for probe etc is fine.

Regards the Relay your better with 24Vdc coil not 220Vac. The contact rating will depend on what your controlling. Just take note that if your controlling DC voltage the contact rating for DC will be lot lower than AC rating. If your thinking to control Transformer then your better using a Contactor not a relay as it can handle higher DC loads.

If go for contactor you still want one with 24Vdc coil.