Originally Posted by
servtech
As written above, it may need a blanking on plug to simulate the safety signals from the bar feed. Ie. A harting type plug with link wires inside plugged into the machine barfeed interface socket, then usually you can switch off the barfeed by a switch on the panel or an option parameter bit.
If it was cobbled together by a third party user, you will need a wiring diagram. Barfeed machines have a hollow spindle and clamp cylinder, where chuckers often don't. A 3 jaw chuck signal is opposite to a collet chuck, some machines also have a toggle switch to reverse this function.