If you have a machine with a servo controller on it you will probably find that it has an E-stop input on the servo. Drop the voltage to that input and the servo will stop in whatever manner the manufacturer deemed appropriate ( normally in accordance with regulations) and then enter it's own estop conditions. You should also find a set of volt free contacts for dropping out the machines e-stop if the sero has a fatal error. I don't know about anywhere else but in the UK all machinery has to conform to the regs when it is sold. Not sure about the situation when you build one from parts or retrofit for domestic use. |