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Rockwell Automation Publication 1769-UM021G-EN-P - October 2015
Chapter 8
Use I/O Modules with CompactLogix 5370 L2 Controllers
shows an example of a differential encoder that is wired to the
embedded high-speed counter inputs on a 1769-L27ERM-QBFC1B controller.
Figure 35 - 1769-L27ERM-QBFC1B Controller Differential Encoder with High-speed Counter Input
Wiring Diagram
shows an example of a single-ended encoder that is wired to the
embedded high-speed counter inputs on a 1769-L27ERM-QBFC1B controller.
Figure 36 - 1769-L27ERM-QBFC1B Controller Single-ended Encoder with High-speed Counter
Input Wiring Diagram
External
Power
Supply
Cable
Shield
Earth
Shield/Housing
Only connect if housing is electronically
isolated from the motor and ground.
External
Power
Supply
Cable
Shield
Earth
Shield/Housing
Only connect if housing is electronically
isolated from the motor and ground.