
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.
1cycle
Hi
Lo
Channel A
B
A
B
Z
Z
Optional
CCW rotation
viewing shaft
Wire CH B, CH A, and CH Z to CH B LO,
CHA 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.
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