Aerotech Automation1 XI4-4P1, Hardware Manual

Page: 47 / 78

2.2.7.4. Encoder Phasing
Incorrect encoder polarity will cause the system to fault when enabled or when a move command is
issued.
Figure 2-17 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
Figure 2-18 ).
Figure 2-17: Encoder Phasing Reference Diagram (Standard)
IMPORTANT : Encoder manufacturers may refer to the encoder signals as A, B, and Z.
The proper phase relationship between signals is shown in Figure 2-17 .
Figure 2-18: Position Feedback in the Diagnostic Display
www.aerotech.com 47
iXI4/XI4 Hardware Manual 2.2.7. Primary Encoder Inputs