While not familiar with your setup and all, I have seen bounce issues on other projects. Is the “known reliable counter” from the same manufacturer, same batch? If different, it may react to switch bounce a little different. The forward and reverse may have very slightly different bounce characteristics, just enough different to get the circuit fooled. I would definitely try a debounce circuit. Perhaps the known good counter has a better debounce on the input?
Also could try putting a scope on the leads, see if there is indeed bounce.
But I would put money on debounce solving it.
Chuck
From: Indoor_Construction_at_yahoogroups.com [mailto:Indoor_Construction_at_yahoogroups.com]
Sent: Saturday, October 07, 2017 7:52 PM
To: Indoor_Construction_at_yahoogroups.com
Subject: Re: [Indoor_Construction] HELP !!!
I thought of that, having experienced it once on my own winder, with a reed switch from a different manufacturer. I removed the wires from the reed switches on all three completed winders and replaced them with jumpers which I plugged into a known reliable counter. That counter displayed 1-2-3-4-5, instead of 2-4-6-8-10 for all three, both forward and backward. So the switch doesn't sense which direction the magnet is crossing it from. Nor is it affected by winding speed, from a crawl to 30hz (my personal fastest).
I mention that because to make it more puzzling, I just delivered one last week and asked the client to check that the count display is accurate. His works properly winding but counts double on the backwind. This points to the switch, doesn't it?
art.
Received on Sun Oct 08 2017 - 03:01:26 CEST
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:49 CET