Comments sought on new build: A CNC Router for RC Gliders and Planes

[JAZZCNC]

Ok so I'm drawing up my wiring diagrams, ill start with the power to the PSU'S and 230V driver. I've got on and off push buttons I think that the off button needs to go in the safety part of the circuit as it needs to kill the power to the drives through the relay?

I use Mains ON/OFF Isolator for Switching power to the Control box and then have ON/OFF switch on the 24V side for Local isolation when using machine but without turning mains ON/OFF for when changing tools etc or when making a Cuppa etc but not finished using machine. This way I'm not switching Mains voltage and it add's extra level of safety when changing tools etc so machine can't accidently be moved or spindle turned on as there is no power for the Master relay.

I have all Mains going thru a Contactors with 24V coil and then these go thru the Pilz relay contacts. While they will handle Mains voltage your better using them to control contactors.

Edit: I presume your going to use the drives Fault signal as part of the E-stop to stop machine if motor stalls.?