Re: Confused as to what J20 on Sound Logic board does...

I beleive J20, when connected to the inhibits on the Gecko drives, disables the drives if power is not applied to the board. Jim will correct me if I'm wrong.

I can tell you for sure that when you sut down power to the Sound Logic board, an Estop is tripped in Mach1. If you want to set up a master Estop and have Mach1 go to an Estap condition when youj trip an Estop, just set up your master Estop switch to kill AC power to your electronics. When you do that, Mach1 will trigger an Estop automatically. You do not need to wire any special relays to make the Sound Logic board send an Estop to Mach1.

Ross