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Optical Shaft Encoder Page 1 of 4 The S2 series high resolution optical shaft encoder is a non-contacting rotary to digital converter. Useful for position feedback or manual interface, the encoder converts real-time shaft angle, speed, and direction into TTL-compatible quadrature outputs with or without index. It operates from a single +5VDC supply. The S2 is our first generation ball bearing optical shaft encoder and is available for those customers who have designed it into their products; however, the S6 is recommended for new designs in place of the S2. The S2 is designed to drive cables up to 10 feet long. For longer cable lengths, adding a PC4 / PC5 differential line driver is recommended. Three shaft torque versions are available. The standard torque version has a sleeve bushing designed to provide torque and feel that is ideal for front panel human interface applications. The no torque added option has a sleeve bushing that does not intentionally add torque for low RPM applications where a small amount of torque is acceptable. The ball bearing version uses miniature precision ball bearings that are suitable for high speed and ultra low torque applications. Connection to the S2 series encoder is made through a 5-pin standard connector. The mating connectors are available from US Digital with several cable options and lengths. ► 2-channel quadrature, TTL square wave outputs ► 3rd channel index option ► 64 to 10000 CPR (256 to 40000 PPR) ► Ball bearing option tracks to 10,000 RPM ► Wide operating temperature ► Single +5V supply Mechanical Drawing USE= 1400 NE 136th Avenue info@usdigital.com Local: 360.260.2468 DIGITAL Vancouver, Washington 98684, USA www.usdigital.com Toll-free: 800.736.0194
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Optical Shaft Encoder Page 2 of 4 S2 Optical Shaft Encoder /4" SLEEVE BUSH NG 6MM SLEEVE BUSH NG .025 SQUARE PINS MATES TO COM-C5 OR CON- LC5—\ STAR WASHER Operating Temperature (CPR < 3600) Operating Temperature (CPR > 3600) Vibration (5Hz to 2kHz) Electrostatic Discharge, IEC 61000-4-2 0 MechanicalParameter Sleeve Bushing Ball Bearing Max. Acceleration 250000 rad/sec2 250000 rad/sec2 Max. Shaft Speed (mechanical) 0.5 ±0.2 in-oz 0.3 in-oz (N-option) Bearing Life L10 = (19.3/Fr)3 * Where L10 = bearing life in millions of revs, and Fr = radial shaft loading in pounds USE= DIGITAL 1400 NE...
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Optical Shaft EncoderPage 3 of 4 Parameter Sleeve Bushing Ball Bearing Max. Shaft Total Indicated Runout 0.0015 in. 0.0015 in. Max. Panel Nut Tightening Torque 20 in-lbs 20 in-lbs Technical Bulletin TB1001 - Shaft and Bore Tolerances Download * Only valid with negligible axial shaft loading. (1) The maximum speed due to electrical considerations is dependent on the CPR. See theEM1 andEM2 product pages. 0 Phase Relationship B leads A for clockwise shaft rotation, and A leads B for counterclockwise rotation when viewed from the shaft side of the encoder. 0 Electrical ►...
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S2 Optical Shaft Encoder Page 4 of 4 Description Ground Index A channel +5VDC power B channel Note: 5-pin single ended mating connector isCON-C5 orCON-LC5 Index NE =No Index IE =Index Torque D =Default B =Ball Bearing N =Light Static Drag Notes ► Cables and connectors are not included and must be ordered separately. ► For ordering information please see the Compatible Cables / Connectors section above. ► US Digital® warrants its products against defects in materials and workmanship for two years. See completewarranty for details. DIGITAL Vancouver, Washington 98684,...
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