CSLAB CSMIO/IP-M 4-axis Ethernet Motion Controller

[JAZZCNC]

Your talking about different things again. Fault signals do just that and signal faults but you still have to turn the drives and things on in the first place and this requires power to pass thru contacts.

Safe E-stop system should disable power not just disable signals or outputs and Safe E-stop shouldn't allow power Reset if any safety condition isn't met.
What you want to do would mean everything powers up instantly power is turned on at the wall or box switch. Controlled only by fault signals which are not safe.

Fault signals for things like stalled motors or limit trips or even VFD over current, temp etc are not E-stop conditions so just disableing signals or drive outputs to inform Control system and inhibit movemnet is ok but they don't islolate power which is what should happen in an E-stop condition.

Your idea won't work for number of reasons because of how the fault signals on the drives work and isn't safe anyway so I suggest you have re-think.

The Pilz makes it very easy because it has latching system and E-stop circuits built in so just use the contacts to control contactors for high current devices and with the fault signals driving relays etc to inform the control system or inhibit reset etc depending on what you want to protect.

Don't cut corners on safety just for the sake of buying a contactor. Equally don't risk damage to expensive Pilz relays for sake of Contactor and couple of relays.