Rockwell Automation 1746-HSRV SLC Servo Control Module User Manual - Manual (Page 59)

Publication 1746-6.1.2 - July 2000
5-16 Wiring the SLC Servo Module
Figure 5.12 Typical Vendor Encoder Timing Diagram
Encoder Feedback Direction
The encoder can spin either CW or CCW for a given table direction
and the direction (phasing) of the feedback could be backwards.
You can change the direction of the feedback by switching channel A
wiring with channel B wiring. For encoder feedback connections, see
Figure 5.13 and 5.14.
1 cycle
H i
Lo
C hannel A
B
A
B
Z
Z
O ptional
C C W rotation
viewing shaft
W ire C H B, CH A, and C H Z to C H B LO ,
C H A LO and CH Z LO , respectively,
on the termination panel.
See 1 in table below
See 2 in table below
See 3 in table below
90
Location: Shows:
1 Channel A is high for at least part of marker interval. You connect this
to CH A.HI of the termination panel.
2 High marker interval. You connect this to CH Z.HI of the termination
panel.
3 B is high for at least part of marker interval. You connect this to CH
B.HI of termination panel.