Appendix
IM-ChipEncoder-Series-Rev. 2 Page 19 ©2022 Celera Motion
ChipEncoder Series
Installation Manual and Reference Guide
7.2 Output Signals Descriptions
CE (6mm x 6mm ChipEncoder)
CE300 (7mm x 11mm ChipEncoder)
A+, B+, and Index Window+ Outputs from 40X Encoder
Description of signals:
Digital quadrature outputs. Signals are RS-422 compatible square waves. Pulses are 90° out
of phase with B+/B- outputs.
Digital quadrature outputs. Signals are RS-422 compatible square waves. Pulses are 90° out
of phase with B+/B- outputs.
Index Window+/
Index Window-
The Index Window defines one particular fringe on the grating surface. The Index Window
signal is a TTL compatible pulse, and is approximately 40 um wide. Note that this signal is not
synchronized to the A or B signals.