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Parallel Port breakout boards, motherboards, and dedicated accessories / Converting a Precision Mathews PM45M Cnc mill to use a Smoothstepper, PMDX-126

« on: March 01, 2016, 12:17:34 PM »

Hello, I am converting a Precision Mathews PM45M CNC mill to use a an Ethernet Smoothstepper, PMDX-126, and a PMDX-107. The current motion controller/BOB is a Jamen JNC-40M. This controller passes 14V through output 1 and 2 to energize the relays to run the spindle either cw or ccw. I would like to continue to use the existing relays is this manner but I don't know if allowing the 14v to pass through the output 1 or 2 to ground would damage the 126 board. And if so can I then use the PMDX-107 to control just the spindle speed using the Aout and Agnd?