Rockwell-automation 1794-ID2 U.MNL INCREMENTAL ENCODER User Manual Page 80

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8–2 Troubleshoot the Incremental Encoder Module
"! $ # 
Indicator Indication Explanation
A Yellow Input A active
Off Input A not active
B Yellow Input B active
Off Input B not active
Z Yellow Input Z active
Off Input Z not active
G Yellow Input G active
Off Input G not active
+ Yellow On when a positive pulse is detected; turns off
on negative pulse.
- Yellow On when a negative pulse is detected; turns off
on positive pulse.
OK Red Red during initialization after power turned on
Green Green when initialization is completed
When an input indicator (yellow) is lighted, it indicates that a valid
signal (active high or active low) is present at one of the Input
terminals.
To find out more about the ID2 module:
!  !  "
See appendix A
For
!
What's Next
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