I seem to have developed(?) a problem with my x axis. It faults randomly. I did some testing and it seems I am loosing some position as well. In 200 1" moves (back and forth) I lost 50 thousands of an inch.
I ran a new encoder cable directly from the encoder to the drive outside the cabletray/cat-tracks. Same problem. switched the x gecko drive with the A(rotary axis) drive. Same problem. I am starting to wonder if it's the encoder itself, but I want to eliminate some more stuff first.
Question: I use 8 conductor shielded cable for the encoder. 4 twisted pairs and a shield. I only use 4 of them. Should A and B from the encoder be a twisted pair? or should I use a wire from one pair for A and a wire from another pair for B with the other wires from the pairs grounded? Or just cut off? I use a twisted pair for the +5 and 0V. The shield is tied to ground at the drive end only.
Anyone else have an idea what's wrong?
Eric