View Full Version : Where To Buy Encoders With an A, B and Z Chanel i.e. Compatible With Centroid Acorn

11-03-2021, 10:06 PM
Can anyone recommend an encoder that has an A, B and Z channel that has over 4000 counts per revolution (the more the better). I've been looking for about a week now but can't find them in the UK. I'm sure there are loads but I have looked and can't find them. If anyone could recommend any that would be great.

11-03-2021, 11:38 PM
British Encoders ( encoder.co.uk )will be able to supply what you need, but they won't be that cheap.

I think I've still got got an encoder kicking around somewhere, that I bought from Zapp a few years ago.
Just a had quick email search for the order, and the part no is ISC3806-001G-1024BZ1-5L, and it's 1024 line, so 4096cpr.
If you're interested, I'll have a rummage in the workshop tomorrow night, as I have no idea where it would have ended up during last years major workshop rearrange.

11-03-2021, 11:51 PM
Thanks for the reply. If you do find something that will work I'd be interested. I'll look up British encoders. I guessing they know their stuff so if I message the they can tell me what will work?

12-03-2021, 08:31 AM
Alternative thought. I had a similar, but lesser need (went for a 360ppr encoder), and slaved a board inline which on start-up established a synthetic 'Z' pulse (basically, counts the quadrature signals continually and generates a Z pulse once in 360 etc), passing the original A/B input through to the output. One advantage was in establishing this I was able to use RS485 line drivers for the new A/B/Z output drivers which were pretty much impedance matched to the differential inputs on the Mesa 7i76E board I was interfacing to. I'd hazard a guess for any incremental encoder would do just the same.

Just an alternative if you struggle to find an affordable encoder with a Z output.

12-03-2021, 05:47 PM
I have a Chinesium encoder on my Centroid Acorn machine. They are available in various PPRs.

Here's the one I got. If you can wait for it to turn up, these are cheap enough and mine has worked fine for the last 3 years. They even come with a free "Omron" label!
https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=OMRON+Rotary+Encoder+E6B2-CWZ1X+2000P%2FR+E6B2CWZ1X+5VDC+New+in+box+Free+shi pping&_sacat=0

I made a blog post about it for my records: https://mightyshiz.blogspot.com/2018/03/omron-encoder-on-spindle-motor.html

12-03-2021, 08:13 PM

If it's off any use, make me an offer.