Problem- Noise

[Jdtray]

I recently upgraded to 3 201x Drives, they move my motors and table perfectly,
however with my limit switches and Estop connected in either a active high or a active low configuration Gremlins appear. These gremlins kick my reset of my software, (Mach3) when ever I enable the drives, if I enable 1 no problem, if I enable 2 or more the reset will not reset, like a limit or Estop has been tripped. When I disable the drives, I can reset. I went into config. and played with the debounce, I am now at a debounce of 12000 which seems high, machine runs smoothly this way, however if machine is idle for 5 - 10 minutes the reset pops on also a couple of times I was running a drilling program I wrote and when the last hole was drilled I sent all axis to zero and the reset popped on, not every time, I checked in config. and had not told it to reset on a program end. Thoughts anyone?

[bobsch]

Are your cables shielded and, if they are, make sure the shields are connected to a common ground at only one end.

[Crevice Reamer]

Hi JD. Welcome to the Zone!

Do your limit/home switch wires bundle alongside the motor wires at any point?

CR.

[Jdtray]

Thanks You, I think you have it. When I had took my switches out of circuit, no problems, this time I disconnected my motors at the drives, again no problem, I had put my Oscope on limit pins and could watch the noise build as I turned on the drives, now the noise is so small I can barely measure it. Now for the story, my old drives didn't pare up to my motor ratings I found out, causing me some problems. so as money and time would allow I upgraded. My drivers are mounted in my computer case, as it is large, when I had more time than money I would clean up my wiring, I cop a nut over clean wiring, I originally used Cat5 shielded cable but being a hard line, I went to a stranded cable because hard line isn't good when moved around and I remember giving a thought to shielding once! and ignored it! so if this is not thee problem it is a problem, I now got to figure out a way to shield my wires with materials on hand. So Bob thanks for the slap in the face (or realty check), I usually am not this sloppy and am very well thought out, but flunked kindergarden here. I will try to prove this out this week and will let you know THANKS again. Marcus simple answers better than no answer! JD.

[Jdtray]

Originally Posted by Crevice Reamer Hi JD. Welcome to the Zone! Do your limit/home switch wires bundle alongside the motor wires at any point? CR.

Thank you very much for the reply, read my reply post to BOB. Yes my wires run in parallel with each other, I pulled a newbies mistake when I changed the type of cabling. I had 2 replies with the same content. My hat is off to both of you, for shaking my tree. I out did myself cleaning up the wiring.