> is there a debounce setting for the mpgs?
Not to the best of my knowledge, but others might know better.
I am not sure the hardware problem has to lie inside the MPG. It could be a poor connection at the connector or inside your hardware. In particular I would check all the earth connections right through, then the power supply connections. Then i would check that the power supply can actually handle the load of the MPGs - does the rail sag at all when you plug them in?
Actually, I would start by testing the system withOUT the MPGs. Use the keyboard instead - that's all I use. If there is creep showing on the DROs without any MPG connected, you have a real noise problem in the rest of the hardware. Somewhere.
Cheers
Roger
CNC: one way to get it right; a thousand ways to get it wrong.