Fanuc 10t Encoder sensing

[sepganesh]

We need to replace a ROD 426 5000 Axis encoder.My doubt is how does the controller sense the encoder.Will any TTL encoder with equivalent pinout work as a replacement.

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[Brunocnc28]

1024 pts, mini 4 volts as signal level, and complémentary signal, A B and Z

[Bdrangdo]

We need to replace a ROD 426 5000 Axis encoder.My doubt is how does the controller sense the encoder.Will any TTL encoder with equivalent pinout work as a replacement.

That is a Heidenhain encoder, usually it is the current load on the 5V line that the Heidenhain controller picks up on, most likely Fanuc will do the same.

[sepganesh]

1024 pts, mini 4 volts as signal level, and complémentary signal, A B and Z

The PPR on encoder is 5000.I should probably use only 5000 PPR or 2500 PPR and reduce CMR by half.
My main concern is will the sensing of the new encoder be of any problem.

[Bdrangdo]

As long as the replacement encoder draws a similar load current controller sensing should not be a problem, Fagor controls have a parameter setting that turns off encoder sensing, maybe Fanuc is the same.

[Al_The_Man]

The ROD426 series are 5vdc TTL 150ma with incremental square wave differential outputs.
5000 p/rev is the highest these go.
Al.

[generaldisarray]

The last time I had to buy a ROD426, they were not that expensive, or hard to get. Got it from a Heidenhain rep in St louis. One of the chuckle heads I know kept saying to get a Fagor equivalent as he had done previously on a sister machine. Fagor wanted more ,had a long leadtime, and wasnt a direct fit.

[generaldisarray]

426-429 whatever it takes

[Al_The_Man]

One nice manuf. as a sub is Hengstler encoders.
Al.