Optical Rotary Encoder

Description

Model SC12 provides an improved feedback solution in applications  typically using modular encoders. With an over all height of less than one inch and the stability of a bearing encoder design, the model SC12 can provide significant performance upgrades in applications limited by traditional modular encoder solutions. SC-12 Outputs consist of a quadrature sine/cosine pair with an index pulse and three-phase commutation. Each SC-12 is individually calibrated to compensate for normal construction variances. This creates high quality Sin/Cosine outputs that allow for large Count-per-Revolution interpolation factors which are configurable in most of today’s sin/cosine drives. Output levels are also stabilized due to source tracking of the sensor supply allowing for compensation of any temperature variation, and aging effects. Differential style outputs provide greater noise immunity and signal integrity. All Outputs are Short-circuit-proof and reverse polarity tolerant. A flexible member allows for much greater tail shaft run out and TIR than can be tolerated by modular encoder designs, plus it provides 30 degrees of rotation for commutation timing.

Specs

• Input Voltage - 5 VDC ± 5% • Input Current Requirements - 65mA Typ., 100mA Max Plus Interface Loads • Input Ripple - 2% Peak to Peak @ 5 VDC • Output Circuits - (A) Sine/Cosine, Index & RS422 UVW (TTL Compatible)  (B) Sine/Cosine, Index & UVW Open Collector • Incremental Output Format - Quadrature Sine/ Cosine with A leading B for CW rotation. Ungated Index Pulse. • Frequency Response - 500 kHz • Sine/Cosine & Index Amplitude - 1 Vpp ± 5% (Measured Differentially) • Commutation Format - Three Phase 4, 6 or 8 poles • Commutation Accuracy - ± 1° mechanical • Z channel to U channel - ± 1° mechanical • Storage Temperature - -40 to 125° C • Operating Temperature - -20 to 115° C • IP Rating - 40 • Humidity - 90% Non-Condensing • Vibration - 20 g's @ 50 to 500 CPS • Shock - 50 g's @ 11mS Duration • Through Shaft Diameter - 0.250", 0.3125", 0.375", 5mm 6mm ,8mm, 10mm • Tolerance: -0.0000, + 0.0006” • Recommended Shaft Engagement - .50” Minimum • Radial Shaft Movement - 0.007" TIR • Axial Shaft Movement - ± 0.030" • Maximum Shaft Speed - 8000 RPM, Contact Customer Service for Higher RPM • Interface Connector - Connector: JAE P/N F1-W15P-HFE • Mounting - 1.28”, 1.575”, 1.812” Bolt Circle • Moment of Inertia - 9.1 x 10-5 oz-in-S2 • Acceleration - 1x105 Radians/S2 • Accuracy - Instrument Error 1.5 arc min. max
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