PMDX Forum
General Category => Parallel Port breakout boards, motherboards, and dedicated accessories => Topic started by: NavyHk on February 05, 2018, 08:32:08 AM
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Hello everyone. I have been using a PMDX-122 board with three Gecko 203V drivers in Mach3, and I am looking to add a 4th Axis with my Sherline 8700 controller in slave mode. Normally, I would connect the step, direction, and ground from my 203v drivers to the 122 board.
Would I need to connect the 8700 controller in the same way as the 203V's, or just need to connect the step and direction only? Just making sure that I don't damage the 122 board or the 8700 controller by plug and pray. Thanks.
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This is the 8700 indexer, right? You will need the ground connection from the PMDX-122 to the 8700 DIN connector. That is the return path for the signals going into the step & direction pins. No return path, no electron flow, no signals.