Celera Motion MicroE ChipEncoder Series

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ChipEncoder Installation

ChipEncoder Series

Installation Manual and Reference Guide

4.3 Encoder Alignment

Optimal alignment of the CE300 (7 mm x 11 mm package) or CE (6 mm x 6 mm package) ChipEncoder

is achieved through adherence to MicroE System’s published interface drawings and can be verified

and fine-tuned using the Sin+ and IW+ signals:

 Sin+ is available on pad 14 (7x11 mm) and on pad 3 (6x6 mm). Sin+ is a sinusoidal function

riding on a 1.7 V (approximate) offset.

 IW+ is on pad 24 (7x11 mm) and pad 16 (6x6 mm). IW+ is an active-high TTL pulse which

occurs each time the index mark on the scale is passed.

Both signals must be present and within the following specification limits in order to ensure proper

encoder function:

 Sin+ Range = 1.1 - 2.1 V pk-pk

 IW+ = 40 um wide ±25%

Celera Motion MicroE ChipEncoder Series - Encoder Alignment