I'm fairly new at this, and have no formal CNC training. In our shop we have an HD200 CNC router system used for sign work. The machine is set up for a 6-tool change. It uses an APE "Tool Measure" which has ceased to function. We've traced the wiring back to the Servo Drive, and get power (the power is cut when the Tool Measure (TM) device is activated). However, when the machine goes to measure a tool, it presses down on the TM and jams. As of right now, I can get the work done by manually changing tools, but this hampers efficiency. An ideas (in layman's terms) how I can check the setup in the software?

Thanks
Steve