Optical and Mechanical Encoders Optical Encoders SERIES 61A Custom, Absolute FEATURES • Absolute Position Sensing • 3, 4, or 5-Bit Custom Output Coding • Available in 8, 16 and 32 detent positions • Fixed Stops Only • Angles of Throw to 45° (Design Specifications Will Dictate the Angle of Throw) DIMENSIONS in inches (and millimeters) .320±.005 (BUSHING FLATS) .218±.005 .875±.005 SQUARE .562 3 PLACES .331 .248/.250 3/8-32 UNEF 2A .250 THREAD .093 MOUNTING SURFACE .688 3 PLACES .780±.025 CONNECTOR IS 6.000±.300 MOLEX P/N 14-56-2074 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 and Mechanical Encoders Optical Encoders CIRCUITRY TRUTH TABLE 3 BIT, 8 POSITION 5 BIT, 32 POSITION +5 VOLTS 7 Position B2 B3 B4 Position B0 B1 B2 B3 B4 R* 1 1 2 2 BIT 0 6 3 3 R* 4 4 5 5 BIT 1 5 6 6 7 7 R* 8 8 9 INDICATES LOGIC HIGH BIT 2 4 BLANK INDICATES LOGIC LOW 10 11 R* 12 13 BIT 3 3 14 4 BIT, 16 POSITION R* 15 Position B1 B2 B3 B4 16 BIT 4 2 1 17 2 18 3 19 4 20 GROUND 1 5 21 6 22 * EXTERNAL PULL-UP RESISTORS REQUIRED FOR OPERATION (4.7k) 7 23 8 24 9 25 10 26 11 27 12 28 13 29 14 30 15 31 16 32 INDICATES LOGIC HIGH INDICATES LOGIC HIGH BLANK INDICATES LOGIC LOW BLANK INDICATES LOGIC LOW SPECIFICATIONS Ratings Environmental Materials and Finishes Operating Voltage: 5 ±.25V DC Operating Temp. Range: -40°C to +85°C Detent Housing: Stainless Steel Storage Temp. Range: -55°C to +100°C Supply Current: 85 mA maximum at 5V DC Bushing: Brass, tin/zinc plated Life: 1 million cycles of operation; 1 cycle is Vibration: MIL-STD 202, method 204, cond. B Shaft: Stainless steel rotation through all positions and a full return Mechanical Shock: 100 g’s, 6 ms, half Sine Detent Balls: Steel, nickel-plated Rotational Torque: 12 ±4 in-oz (initial) 12.3 ft/s and 100 g’s, 6 ms, sawtooth, 9.7 ft/s Code Housings: Nylon 6/10 Output High: 3.8V minimum for CMOS & Humidity: 90-95% relative humidity at Backplate: Nylon 6/10 40°C for 96 hrs. HCMOS; 2.7V minimum for TTL Aperture: Chemically etched stainless steel with Output Low: 0.8V maximum black oxide finish Shaft Push Out Force: 25 lbs. Rotor: Electroformed nickel and chemically Mounting Torque: 10 in-lb maximum etched stainless steel with black oxide finish Load Current: 5 mA maximum per channel Detent Springs: Tinned music wire Logic Rise and Fall Times: 30 mSec typical PC Boards: NEMA grade FR-4 Through Bolts: Stainless steel, unplated Through Bolt Nuts: Stainless steel Mounting Hardware: One brass, tin/zinc- plated 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 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