Re: [Emc-users] Semi OT: Heidenhain incremental encoders

2016-04-24 Thread Leonardo Marsaglia
2016-04-24 23:06 GMT-03:00 Ken Strauss : > Note that if you Google for the model number there are a number of people > selling them. Is it possible that it is not a standard Heidenhain product > but a special for an OEM who went bankrupt or cancelled the project and > they > are now being dumped?

Re: [Emc-users] Semi OT: Heidenhain incremental encoders

2016-04-24 Thread Ken Strauss
onardo Marsaglia [mailto:leonardomarsagli...@gmail.com] > Sent: Sunday, April 24, 2016 9:47 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Semi OT: Heidenhain incremental encoders > > 2016-04-23 19:14 GMT-03:00 andy pugh : > > > The description says that t

Re: [Emc-users] Semi OT: Heidenhain incremental encoders

2016-04-24 Thread Leonardo Marsaglia
2016-04-23 19:14 GMT-03:00 andy pugh : > The description says that they are normal TTL output, and that he has > the pinout available. > Since I can't find any documentation I'm gonna ask him for the pinout so I can decide. It's weird anyway that I can't find anything from heidenhain directly.

Re: [Emc-users] Semi OT: Heidenhain incremental encoders

2016-04-23 Thread andy pugh
On 23 April 2016 at 22:29, Leonardo Marsaglia wrote: > That's what I was not sure about them. And I can't find the manuals of > these series so I can't check wheter I can wire them directly as TTL or if > I need that interpolator box to make them work. The description says that they are normal T

Re: [Emc-users] Semi OT: Heidenhain incremental encoders

2016-04-23 Thread Leonardo Marsaglia
2016-04-23 18:44 GMT-03:00 Nicklas Karlsson : > The common ground is a problem but it also depends on cable length. Basic > problem is then there is a flank on one of the signals ground bounce in the > receiving end. With differential signals ground current stay there it is > and it will not affec

Re: [Emc-users] Semi OT: Heidenhain incremental encoders

2016-04-23 Thread Nicklas Karlsson
> Anyway my only doubt now is how much better are differential encoders > compared to normal ones. I always used normal encoders with no signs of > noise but since this is for a lathe with 0.01 mm increments I would like to > go with the safest option. > > As always Andy, thanks you! The common g

Re: [Emc-users] Semi OT: Heidenhain incremental encoders

2016-04-23 Thread Leonardo Marsaglia
2016-04-22 14:05 GMT-03:00 andy pugh : > > Heidenhain mainly do sin/cos encoders and one uses an interpolation > box to convert to TTL. > I suspect that these encoders have a built-in 25x interpolator to give > the 5000ppr. > > The price looks great, especially including the fancy mounts. That's

Re: [Emc-users] Semi OT: Heidenhain incremental encoders

2016-04-22 Thread andy pugh
On 22 April 2016 at 17:51, Leonardo Marsaglia wrote: > My doubt is that in the label it says TTL x25 wich I don't know what it > means. Is this a multiplication factor? Heidenhain mainly do sin/cos encoders and one uses an interpolation box to convert to TTL. I suspect that these encoders have a