Rockwell Automation 1794-ID2 U.MNL INCREMENTAL ENCODER - Manual (Page 79)

Chapter
8
Publication 1794ĆUM015B-EN-P - May 2001
Troubleshoot the Incremental
Encoder Module
Use this chapter to troubleshoot the incremental encoder module by
interpreting the indicators.
The module contains indicators for each of the following:
A B C
2 CH INCREMENTAL ENCODER MODULE
1794-ID2
A B Z G + - A B Z G + -
AllenĆBradley
1
A = Power/status indicator – indicates power applied to module and
status of module.
B = Insertable label for writing individual I/O assignments.
C = Status Indicators –
A = Status of input A
B = Status of input B
Z = Status of input Z
G = Status of input G
+ = Positive count detected
– = Negative count detected
What This Chapter
Contains
Status Indicators