Encoder counting direction, Set up the axis properties – Rockwell Automation LDL Ironless Linear Servo Motors User Manual

Page 78

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Publication LDL-UM001A-EN-P - March 2009

Appendix C 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

When installing a Sin/Cos linear encoder, setup the Axis Property tabs
by doing the following.

1. Click the Motor Feedback tab.

2. Enter the following parameters.

Parameter

Value

Comment

Feedback Type

Sin/Cos

Cycles

25 per Millimeter For 40 µ pitch encoder scale.

50 per Millimeter For 20 µ pitch encoder scale.

Interpolation Factor

1024

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