Usually either a contactor ahead of a VFD or a heavy duty relay for a Universal motor spindle is needed.
I usually use one for a E_stop relay or though these are the slightly smaller ones known as control relays, they often resemble contactors, these can cut the power to servo/stepper supplies etc in E-stop.
Al.
__________________ CNC, Mechatronics Integration and Machine Design.
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E. |