Campbell Scientific QD1 Incremental Shaft Encoder Interface User Manual

QD1 Incremental

Encoder Interface

Revision: 12/91

Copyright © 1987-1991

Campbell Scientific, Inc.

Warranty and Assistance

The QD1 INCREMENTAL ENCODER INTERFACE is warranted by
CAMPBELL SCIENTIFIC, INC. to be free from defects in materials and
workmanship under normal use and service for twelve (12) months from date
of shipment unless specified otherwise. Batteries have no warranty.
CAMPBELL SCIENTIFIC, INC.'s obligation under this warranty is limited to
repairing or replacing (at CAMPBELL SCIENTIFIC, INC.'s option) defective
products. The customer shall assume all costs of removing, reinstalling, and
shipping defective products to CAMPBELL SCIENTIFIC, INC. CAMPBELL
SCIENTIFIC, INC. will return such products by surface carrier prepaid. This
warranty shall not apply to any CAMPBELL SCIENTIFIC, INC. products
which have been subjected to modification, misuse, neglect, accidents of
nature, or shipping damage. This warranty is in lieu of all other warranties,
expressed or implied, including warranties of merchantability or fitness for a
particular purpose. CAMPBELL SCIENTIFIC, INC. is not liable for special,
indirect, incidental, or consequential damages.

Products may not be returned without prior authorization. The following
contact information is for US and International customers residing in countries
served by Campbell Scientific, Inc. directly. Affiliate companies handle
repairs for customers within their territories. Please visit
www.campbellsci.com to determine which Campbell Scientific company
serves your country. To obtain a Returned Materials Authorization (RMA),
contact CAMPBELL SCIENTIFIC, INC., phone [phone]. After an
applications engineer determines the nature of the problem, an RMA number
will be issued. Please write this number clearly on the outside of the shipping
container. CAMPBELL SCIENTIFIC's shipping address is:

CAMPBELL SCIENTIFIC, INC.

RMA#_____
815 West 1800 North
Logan, Utah 84321-1784

CAMPBELL SCIENTIFIC, INC. does not accept collect calls.

QD1 Table of Contents

PDF viewers note: These page numbers refer to the printed version of this document. Use
the Adobe Acrobat® bookmarks tab for links to specific sections.

1. Function........................................................................ 1

2. Specifications ..............................................................1

3. Connections ................................................................. 1

4. Datalogger Programming............................................ 1

4.1 Powering the QD1 ....................................................................................2

4.2 Measurement.............................................................................................2

4.3 Processing.................................................................................................2

5. Entering the Reference Offset .................................... 2

6. On-Site Check-Out....................................................... 2

7. Range vs. Resolution ..................................................2

8. QD1 Timing Diagram ...................................................3

Appendix

A. Shaft Encoder Connections and Example

Program....................................................................... A-1

A.1 Shaft Encoder Connections................................................................. A-1

A.2 Example Program ............................................................................... A-1

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