VFD Wiring Diagram

[EddyCurrent]

In case of E-stop then really you wouldn't have RUN signal tied to this because safe E-Stop should Kill power To VFD and everything else on machine.

I've come across this several times and it's why I mentioned it above, the last time was with a 120kw inverter driving a steel beam straightening machine and due to the HSE requirement of stopping the machine within 10 seconds ( I think that time is right) it was best to allow the drive to ramp it down. If it had been left to coast down it would have taken ages to stop and a physical brake was not an option.
Using the on board output relay of the drive to detect 'motor stop' the power supply was then removed from the inverter as you say.

[JAZZCNC]

I've come across this several times and it's why I mentioned it above, the last time was with a 120kw inverter driving a steel beam straightening machine and due to the HSE requirement of stopping the machine within 10 seconds ( I think that time is right) it was best to allow the drive to ramp it down. If it had been left to coast down it would have taken ages to stop and a physical brake was not an option.
Using the on board output relay of the drive to detect 'motor stop' the power supply was then removed from the inverter as you say.

Ermm how does that make it safe.? What happens if the Drive fails what stops the machine then.? But in all honesty these examples are so far removed from each other that it's not worth the effort going any further on this.

Tom's got what he asked for and it's safe enough for his needs. If it's not connected to Reverse then can't go backwards so switch not required simplizzzz.

Regards coasting then again not often a problem with these small spindles and taking DC braking to far without Brake resistor can lead to Trips etc so often having longer ramp down is advised, esp for those who are not used to DC braking and the Complexity's of Setting VFD's correctly.