Working on a new art installation using stepper motors. I thought it would be cool to have a 6 strand cable connecting the (four wire) steppers and limit switches in one casing. This has turned out to be a very bad idea. Even though I have proper pull-down resistors there is a lot of noise in the …

Unexpected Limit Switch Noise

LarryD April 1, 2014, 12:36am 2

I have a CNC with 3 steppers.
I kept the crash limit switches in a different cable bundle and have nervier had any noise problems
Limit switches are normally closed too ground.

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Unexpected Limit Switch Noise

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