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Encoder counting direction, Set up the axis properties – Rockwell Automation LX-Series Iron Core Linear Servo Motors User Manual

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Rockwell Automation Publication LX-UM001A-EN-P - March 2011

Appendix B Sin/Cos Linear Encoder and Kinetix 6000 Drives

Encoder Counting Direction

Normally, the encoder signals will output sine-leads-cosine (AM leads BM) when

the linear encoder head is moving towards its cable, relative to the encoder scale.

SERCOS drives count this in a negative direction.

Set Up the Axis Properties

Do these steps to install a Sin/Cos linear encoder.

1. From the Motor Feedback tab, enter these parameters values.

.

Parameter

Value

Comment

Feedback Type

Sin/Cos

Cycles

25 per millimeter

For 40 µm pitch encoder scale.

50 per millimeter

For 20 µm pitch encoder scale.

Interpolation Factor

1024