encoder question

[mjs79]

hello cnc zone
i have a ac servo with a encoder . i have the spec sheets for the encoder . but im un sure how to read the symbols . i have seen a thread around here before with the anwser but i cant find it .
here goes
the spec sheet has the letter of the channel.example A then a letter A with a line over top.
the drive board im using lists a- a+ in/outputs for the encoder.
i hope this makes sense . how do i hook this encoder up ?
thanks
mike

[Al_The_Man]

This is a couple of methods used to indicate the relative logic levels for the encoder signals.
A B & either Z or I is used for the different channels with I & Z being the once/rev marker pulse.
A+ = A
A- = /A (the inversion of A)
B+ = B
B- = /B
and so on.
Al.

[mjs79]

thanks al i seen you posted the same info before i just wasnt able to find it .
have a good one !
cheers
mike