RE 2 37 ROTARY ENCODER - PDF Free Download

RE 2 37 ROTARY ENCODER User Guide UG204 COPYRIGHT Copyright 2004 Netzer Precision Motion Sensors. Changes are periodically made to the information contained in this guide. The changes are published in release notes and will be incorporated into future revisions of this guide. No part of this guide may be reproduced in any form without permission in writing from Netzer Precision Motion Sensors. TRADEMARKS Netzer Precision Motion Sensors, Netzer Precision, and AqBiSS are trademarks of Netzer Precision Motion Sensors. *The names of actual companies and products mentioned herein may be the trademarks of their respective owners. NOTICE Information deemed to be correct at time of publishing. Netzer Precision Motion Sensors reserves the right to change specifications without notice. Netzer Precision Motion Sensors is not responsible for incidental, consequential, or special damages of any kind in connection with this document. Revision History RevNo Revision Details Date Prepared By Checked By 01 Created document structure. Jan 2004 A. Picus D. Bar-On 02 Revised mounting instructions July 2004 A. Picus D. Bar-On Netzer Precision Motion Sensors Teradion Industrial Park, POB 1359, D.N. Misgav, Israel 20179 Tel: +972 (4) 999 0420 Fax: +972 (4) 999 0432 Web site: www.netzerprecision.com UG204_RE237_02d.doc Page 1 of 9

TABLE OF CONTENTS 1 GENERAL DESCRIPTION...3 1.1 Mounting Kit Components...3 1.2 Related Documentation...3 2 ELECTRICAL AQBISS INTERFACE...4 2.1 AqBiSS Connector...4 2.2 Power Supply Requirements...4 2.3 AqBiSS - AqB and BiSS Cabling Recommendations...4 3 MECHANICAL DIMENSIONS...5 4 MOUNTING DIMENSIONS...6 5 MOUNTING INSTRUCTIONS...8 UG204_RE237_02d.doc Copyright 2004 Netzer Precision Motion Sensors Page 2 of 9

1 GENERAL DESCRIPTION The document relates to the 37mm rotary encoder, RE 2 37. It provides the following: List of kit components Pointers to other documents that are needed to operate this encoder Electrical interface Dimensions of the rotary encoder Mounting instructions 1.1 Mounting Kit Components The mounting kit RE 2-37-INT includes these components:! CB-01012 AqBiSS cable, 400 mm, with 15-pin D-type connector! CB-01031 AqBiSS to user cable, 400 mm, with loose end wires! L3-3 three servo mounting clamps! MP-00380 Alignment jig! L2-36 two synchro mounting clamps To evaluate the rotary encoder, order the evaluation kit, which includes all the required components. 1.2 Related Documentation For instructions on operating the rotary encoder, see the AqBiSS Electric Encoder Evaluation Kits User Manual. For an explanation of the AqBiSS protocol, refer to the Application note AN101 AqBiSS Electric Encoders universal fully digital interface. These manuals are available for download from www.netzerprecision.com/downloads.asp. UG204_RE237_02d.doc Copyright 2004 Netzer Precision Motion Sensors Page 3 of 9

2 ELECTRICAL AQBISS INTERFACE 2.1 AqBiSS Connector Pin Name Signals Note 1 VCC Vcc 2 GND GND 3 A+ A Positive (A Quad B) 4 A- A Negative (A Quad B) 5 B+ B Positive (A Quad B) 6 B- B Negative (A Quad B) 7 I+ Index Positive (A Quad B) 8 I- Index Negative (A Quad B) 9 MA+ MA Positive(BISS clock) 10 MA- MA Negative(BISS clock) 11 SL+ SL Positive (BISS data) 12 SL- SL Negative (BISS data) 2.2 Power Supply Requirements 4.75-5.5V supply with a ripple of up to 50mV. 2.3 AqBiSS - AqB and BiSS Cabling Recommendations Type BM12B-SRSS-TB Mating SHR-12V-S-B Mating Pins SSH-003T-P0.2 Cable 28AWG! Shielded, twisted pairs.! Connect the shield at both ends of the cable. On the encoder side, connect the ground cable terminal to the chassis body.! The cable should be sufficiently flexible for your application. NOTE: If a long cable is used, then in order to avoid an excessive voltage drop on the 5V supply, it is recommended to:! Use a cable with the maximum gage possible in order to minimize resistance.! Use a separate power supply with a short cable. CAUTION! The cable from the encoder must have a strain relief to the body of the machine. Excessive pull on the cable might break the encoder. UG204_RE237_02d.doc Copyright 2004 Netzer Precision Motion Sensors Page 4 of 9

3 MECHANICAL DIMENSIONS The following figure shows the mechanical dimensions of the 37mm rotary encoder. Figure 1 37mm encoder mechanical dimensions UG204_RE237_02d.doc Copyright 2004 Netzer Precision Motion Sensors Page 5 of 9

4 MOUNTING DIMENSIONS The following figure shows the mounting dimensions of the 37mm rotary encoder, with servo clamps and synchro clamps. Figure 2 37mm encoder when mounted with servo clamps UG204_RE237_02d.doc Copyright 2004 Netzer Precision Motion Sensors Page 6 of 9

5 MOUNTING INSTRUCTIONS To mount the RE 2 37 encoder using the alignment jig only requires a 33 H7 (mm) pilot diameter. Servo mount clamp Motor shaft Motor chassis 1. Partially screw the three servo mount clamps (supplied in RE 2-37-INT) into the motor chassis (not supplied). Turn the flat phase of each clamp towards the motor shaft. Optional: Install the encoder using the synchro mounting clamps. The mounting dimensions are compatible with the size 15 standard. 2. Place the encoder on a flat surface. 3. Place the alignment jig on the same surface. 4. Insert the alignment jig under the encoder. 5. Lift the encoder using the jig. UG204_RE237_02d.doc Copyright 2004 Netzer Precision Motion Sensors Page 8 of 9

Encoder housing Shaft clamp 6. Mount the encoder on the motor shaft and press the encoder body all the way down. 7. Close the shaft clamp screw with an M2 socket head cap screw (ISO 4762, DIN 912), adjusted to a torque of 0.15-1.2Nm. Encoder connector 8. Gently remove the alignment jig. 9. Press the encoder down to close the gap left by the alignment jig. (Encoder is placed at a 33 H7 pilot diameter.) 10. Screw in the servo mount clamps. Tighten as appropriate for the base material; for example, an aluminum base is adjusted to a torque of 2.9 inc-lbs. 11. Connect the interface cable (not shown) to the encoder connector. 12. Secure the cable with a strain relief. UG204_RE237_02d.doc Copyright 2004 Netzer Precision Motion Sensors Page 9 of 9