What is the present controller, I am assuming the Philips scales go back to the controller and not the drives?
Or where do they return to?
Heidenhain anything, you are lucky if you get TTL differential, they are often 2v p-p or 11µa sine wave.
The part number on the encoders would reveal it.
For all the I/O it may be more efficient to do what the original CNC systems did and I have also done in some controls, is to hand over the majority of the functions to an outboard PLC, this has the advantage of taking the burden off of the CNC side and also all the I/O is conditioned, 24vdc in, relay out if needed?
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.