Optical Encoders Series 61A Custom, Absolute Features •Absolute Position Sensing •3, 4, or 5-Bit Custom Output Coding •8 to 32 Positions •Fixed Stops Only •Angles of Throw to 45° (Design Specifications Will Dictate the Angle of Throw) Dimensions in inches (and millimeters) Optical and Mechanical Encoders .320±.005 (BUSHING FLATS) .218±.005 .875±.005 SQUARE .562 3 PLACES .331 3/8-32 UNEF 2A THREAD .250 MOUNTING SURFACE .688 3 PLACES .248/.250 .093 .780±.025 CONNECTOR IS MOLEX P/N 14-56-2074 6.000±.300 UNLESS OTHERWISE SPECIFIED, DIMENSION TOLERANCES ARE AS FOLLOWS: LINEAR ±.010 (0,25), DIAMETERS ±.010 (0,25), ANGULAR ±5 Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com Optical Encoders Circuitry TRUTH TABLE +5VOLTS 3 Bit, 8 PoSition 7 Position R* BIT0 6 R* BIT1 5 R* B2 5 Bit, 32 AnD 24 PoSition B3 Position B4 1 1 2 2 3 3 4 4 5 5 6 6 7 7 B2 B3 B4 9 INDICATESLOGICHIGH BLANKINDICATESLOGICLOW 4 B1 8 8 BIT2 B0 10 11 R* 12 BIT3 3 R* Position BIT4 2 GROUND 13 4 Bit, 16 PoSition 1 *EXTERNALPULL-UPRESISTORSREQUIREDFOROPERATION(4.7k) B1 B2 14 15 B3 B4 17 2 18 3 19 4 20 5 21 6 22 7 23 8 24 Optical and Mechanical Encoders 9 25 10 26 11 27 12 28 13 29 14 30 15 31 16 32 INDICATESLOGICHIGH BLANKINDICATESLOGICLOW SPECIFICATIONS Ratings Operating Voltage: 5 ±.25V DC Supply Current: 85 mA maximum at 5V DC Life: 1 million cycles of operation; 1 cycle is rotation through all positions and a full return Rotational Torque: 12 ±4 in-oz (initial) Output High: 3.8V minimum for CMOS & HCMOS; 2.7V minimum for TTL Output Low: 0.8V maximum Shaft Push Out Force: 25 lbs. Mounting Torque: 10 in-lb maximum Load Current: 5 mA maximum per channel Logic Rise and Fall Times: 30 mSec typical 16 1 INDICATESLOGICHIGH BLANKINDICATESLOGICLOW Environmental Materials and Finishes Operating Temp. Range: -40°C to +85°C Storage Temp. Range: -55°C to +100°C Vibration: MIL-STD 202, method 204, cond. B Mechanical Shock: 100 g’s, 6 ms, half Sine 12.3 ft/s and 100 g’s, 6 ms, sawtooth, 9.7 ft/s Humidity: 90-95% relative humidity at 40°C for 96 hrs. Detent Housing: Stainless Steel Bushing: Brass, tin/zinc plated Shaft: Stainless steel Detent Balls: Steel, nickel-plated Code Housings: Nylon 6/10 Backplate: Nylon 6/10 Aperture: Chemically etched stainless steel with black oxide finish Rotor: Electroformed nickel and chemically etched stainless steel with black oxide finish Detent Springs: Tinned music wire PC Boards: NEMA grade FR-4 Through Bolts: Stainless steel, unplated Through Bolt Nuts: Stainless steel Mounting Hardware: One brass, tin/zincplated nut and one stainless steel, zinc-plated lockwasher supplied with each switch. Nut is 0.094 inch thick by 0.562 inch across flats. Ordering Information Series Style: A = Absolute position sensing Number of positions: 32 = 32 positions with 10° of throw 24 = 24 positions with 12° of throw 16 = 16 positions with 18° of throw 8 = 8 positions with 36° of throw 61A32-060 Termination: 060 = 6.0 inches cable terminated with Molex connector P/N 14-56-2074. Available from your local Grayhill Component Distributor. For prices and discounts, contact a local sales office, an authorized local distributor, or Grayhill direct. Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com