Rockwell Automation 1769-L23E-QB1B_L23E-QBFC1B_L23-QBFC1B CompactLogix Packaged Controllers Quick Start and User Manual - Manual (Page 208)

208 Publication IASIMP-QS010B-EN-P - October 2009
Chapter 3 Embedded I/O
Differential Encoder Wiring
(1) Refer to your encoder manual for proper cable type. The type of cable used should be twisted pair, individually
shielded cable with a maximum length of 300 m (1000 ft).
A
A
B
B
Z
Z
A1(+)
A1(–)
B1(+)
B1(–)
Z1(+)
Z1(–)
GND
VS
+VDC
COM
Cable
(1)
Power
Supply
Allen-Bradley
845H Series
differential
encoder
Shield/Housing
Connect only if housing is electronically
isolated from the motor and ground.
Shield
Inputs
Earth