I have a g540 12v power supply(dedicated for 2 ssr and trying to get Mach to control router and vac system on/off. I know g540 is feeding ground and + 12v coming from pwr supply to relay. I have attached pics of my config in Mach. There are two problems, first pin 5(output) on g540 always low(sending ground to relay) pin 6 never low. I have changed to pins 14,16, and 17 in Mach with no change. M3 M4 and M5 commands do nothing, that is to say the pins never change from low to high or high to low from the gecko. I have racked my brain on this for 2 days and am completely puzzled. If anyone has any advice please help, thanks in advance.