On Saturday 06 March 2004 22:30, Ed Gilbert wrote:
Hi Jeff,
You should try to keep the signal and voltage wires as far apart as
physically possible. If the wires do come in close proximity or cross each
other try to do it at 90 degree angles, do not run them parallel as this
increases capacitive coupling.
Although you are correct about the coupling, I beleive you are fundamentally
wrong about the approach. If you have to keep your encoder wiring phyiscally
separate from the motor drive wiring that is telling you that you have got
something badly wrong with your shielding. The *correct* solution is to get
the shielding right so it doesn't matter where you put the wires. Any other
solution is just a sticking plaster waiting for a stray pulse to come along
and upset things.
--
RapidCut CNC Technology
CNC Plasma Cutter
