Establishing The Origin - Omron CS1W-MC221 - 02-2008 Operation Manual

Motion control units
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This section explains how to search for and establish the origin using either an incremental encoder or an absolute
encoder, and gives a general overview of absolute encoders.
9-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-1-1
Using Incremental Encoders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-1-2
Using Absolute Encoders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-2
Input Signals Required for an Origin Search . . . . . . . . . . . . . . . . . . . . . . . . .
9-3
Origin Search Methods and Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-3-1
Origin Search Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-3-2
System Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-4
Origin Search Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-4-1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-4-2
CW/CCW Deceleration Method and the Initial Origin
Search Direction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-4-3
Origin Search Patterns Set by Origin Search Method . . . . . . . . . . .
9-5
Absolute Encoders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-6
Setting the Origin With an Absolute Encoder . . . . . . . . . . . . . . . . . . . . . . . .
9-6-1
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-6-2
Setting Up the Absolute Encoder. . . . . . . . . . . . . . . . . . . . . . . . . . .
9-6-3
Moving to the Origin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9-6-4
Setting the MC Unit Absolute Origin . . . . . . . . . . . . . . . . . . . . . . .
9-7
Absolute Encoder Interface Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 9

Establishing the Origin

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This manual is also suitable for:

Cs1w-mc221Cs1w-mc221-v1Cs1w-mc421Cs1w-mc421-v1

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