Many thanks for all the input chaps.
The consensus seems to be
a) Add a mains input filter.
b) Shield the limit switch wires.
c) Stick ferrites in.
d) Mask the problem with a debounce :-)
As I have a pretty solid failing case, I figure it's worth while seeing
if A-C can fix it before masking the problem with a debounce.
So I've ordered a filter; Schaffner FN2030 Series 16A 250 V ac 400Hz on
the basis that Arceurotrade suggest them for their spindles and RS stock
them :)
I'll also replace the limit switch wires with twisted pair shielded and
sprinkle some ferrites on the 7i76 inputs.
I'll report back on the results.
--
Regards,
Russell
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| Russell Brown | MAIL: [email protected] PHONE: 01780 471800 |
| Lady Lodge Systems | WWW Work: http://www.lls.com |
| Peterborough, England | WWW Play: http://www.ruffle.me.uk |
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