A19 Housed Rotary Absolute Encoder
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Gurley Models A19 & A20 Absolute Encoders Motion Type: Rotary Usage Grade: Industrial Output: Absolute Max Resolution: Miniature High-Resolution Absolute Encoder The series A19 & A20 are miniature single-turn absolute rotary encoders with optical reflective technology. This encoder is used in a wide variety of position-sensing applications for the measuring of angles and distances in very small envelopes, where high resolution is required. In addition, the encoder features: h h h h h h Faster and more accurate than any resolver-based system Up to 20-bit resolution, SSI or BiSS outputs -40C to +85C extended operating temperature available Optical reflective technology 19-20mm diameter housing 3-4mm (0.125”) diameter steel solid or blind hollow shaft A19: f19-mm body; ribbon cable A20: f20-mm body; round cable with shielded twisted pairs Gurley Precision Instruments 514 Fulton Street Troy, NY 12180 U.S.A. (800) 759-1844, (518) 272-6300, fax (518) 274-0336, Online at www.gurley.com, e-mail: info@gurley.com

Limiting Values Radial Shaft Load Axial Shaft Load Mechanical Specifications Moment of Inertia Starting Torque Bearing Arrangement Bearings Grease lubricated and sealed Measuring Rotational Element Etched chrome on glass disc Non-Operating Slew Sealing Acceleration Recommended Coupling Environmental Specifications Operating Temperature Relative Humidity Electrical Specifications Supply Voltage Current Consumption Output Code Output Format Output Device Notes 1. Non-condensing 2. IP level could be improved using o-rings & sealants as a custom feature As part of our continuing product...

Output Options CLOCK DATA BiSS Output T CLOCK DATA T = 50ns - indefinite T2 £ 0.06μs T3 = adaptive CRC - 6 bit polynom 0•43x6 +x1+x0 CRC Start value - 0 Gurley Precision Instruments 514 Fulton Street Troy, NY 12180 U.S.A. (800) 759-1844, (518) 272-6300, fax (518) 274-0336, Online at www.gurley.com, e-mail: info@gurley.com

Recommended Circuit Interface & Wiring SSI & BiSS CHANNEL A19 - SSI Output Gray code or Binary - Ribbon Cable Electrical Signal A20 - SSI or BiSS Outputs Binary code only - Round Cable Electrical Signal Gurley Precision Instruments 514 Fulton Street Troy, NY 12180 U.S.A. (800) 759-1844, (518) 272-6300, fax (518) 274-0336, Online at www.gurley.com, e-mail: info@gurley.com

OUTLINE IMENSIONS OutputDOptions A19B (BASE CODE A) 30° 2.2 [.09] SLOT CENTERED ON A Ø.24 [Ø.94] B.C. FULL R EACH END TYP 2 PLCS Ø"D" M2, 2 PLCS (SHCS SHOWN, MAY VARY) 8 CONDUCTOR RIBBON CABLE Ø"D" Ø7.5 [Ø.30] 8 CONDUCTOR RIBBON CABLE PIN NUMBER 8 Gurley Precision Instruments 514 Fulton Street Troy, NY 12180 U.S.A. (800) 759-1844, (518) 272-6300, fax (518) 274-0336, Online at www.gurley.com, e-mail: info@gurley.com

Outline Dimensions A19B (BASE CODE D) FORWARD ROTATION Gurley Precision Instruments 514 Fulton Street Troy, NY 12180 U.S.A. (800) 759-1844, (518) 272-6300, fax (518) 274-0336, Online at www.gurley.com, e-mail: info@gurley.com

ORDERING INFORMATION MODEL SHAFT BASE - Base code A Blind hollow, ext. face mount (A19) B Face mount base (A19) C Solid Shaft (A20) D Blind hollow, ext. tether mount (A19) EXIT - Cable exit S Side-exit cable 15-bit 16-bit 17-bit 18-bit 19-bit 20-bit OF - Output format B BiSS S SSI OC - Output code B Binary (OF = B or S) G Gray code (OF = S ONLY) OD - Output device RS RS Differential (RS422) V - Input voltage 05 +5 Vdc TEMP - Operating temperature S 0C to +70C T -40C to +85C CAB - Cable length, inches 18 Standard CONN - Connector P Pigtails (no connector) R DE-15P S DE-9P Y 8-pos ribbon...