Encoder Phasing; Figure 2-16: Encoder Phasing Reference Diagram (Standard) - Aerotech XR3 Hardware Manual

Chapter 2: Installation and Configuration

2.4.1.4. Encoder Phasing

Incorrect encoder polarity will cause the system to fault when enabled or when a move command is issued.
Figure 2-16 illustrates the proper encoder phasing for clockwise motor rotation (or positive forcer movement
for linear motors). To verify, move the motor by hand in the CW (positive) direction while observing the
position of the encoder in the diagnostics display (see
Configuration Manager can be used to determine proper encoder polarity.
For dual loop systems, the velocity feedback encoder is displayed in the diagnostic display
Figure 2-16:
NOTE: Encoder manufacturers may refer to the encoder signals as A, B, and Z. The proper phase
relationship between signals is shown in
46
Figure 2-17). The Motor Phasing Calculator in the
Encoder Phasing Reference Diagram (Standard)
Figure 2-16.
XR3 Hardware Manual
(Figure 2-17).
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