61A16-100

Optical and Mechanical Encoders Optical Encoders SERIES 61A Custom, Absolute FEATURES Absolute Position Sensing 3, 4, or 5-Bit Custom Output Coding 8 to 32 Positions Continuous Rotation and Fixed Stops Available Angles of Throw to 45 (Design Specifications Will Dictate the Angle of Throw) DIMENSIONS In inches (and millimeters) .320 .005 (BUSHING FLATS) .005 .875 .005 SQUARE .562 3 PLCS688 .248 3 PLCS. /.250 .250 .331 3/8-32 UNEF 2A THREAD MOUNTING SURFACE MOUNTING SURFACE .093 .780 .025 XXX .300 Unless otherwise specified, dimension tolerances are as follows: linear .010 (0,25), diameters .010 (0,25), angular 5 I-17 Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.comOptical and Mechanical Encoders Optical Encoders SPECIFICATIONS CIRCUITRY Ratings Operating Voltage: 5 .25V DC +5 VOLTS 7 Supply Current: 85 mA maximum at 5V DC R* Life: 1 million cycles of operation 1 cycle is rotation through all positions and a full return 6 BIT 0 Rotational Torque: 1.5 in-oz (Initial) R* Output High: 3.8V minimum for CMOS & 5 BIT 1 HCMOS 2.7V minimum for TTL Output Low: 0.8V maximum R* Shaft Push Out Force: 25 lbs. BIT 2 4 Mounting Torque: 10 in-lb maximum R* Load Current: 5 mA maximum per channel Logic Rise and Fall Times: 30 mSec typical BIT 3 3 R* Environmental BIT 4 2 Operating Temperature Range: -40C to +85C Storage Temperature Range: -55C to +100C Vibration: MIL-STD 202, method 204, condition B GROUND 1 Mechanical Shock: 100 gs, 6 ms, half Sine * EXTERNAL PULL-UP RESISTORS REQUIRED FOR OPERATION (4.7k) 12.3 ft/s and 100 gs, 6 ms, sawtooth, 9.7 ft/s Humidity: 90-95% Relative humidity at 40C for 96 hrs. Materials and Finishes Detent Housing/Bushing: Nylon 6/10 TRUTH TABLE Shaft: Glass-filled nylon Detent Balls: Steel, nickel-plated 3 BIT, 8 POSITION 5 BIT, 32 AND 24 POSITION Code Housings: Nylon 6/10 Backplate: Nylon 6/10 Position B2 B3 B4 Position B0 B1 B2 B3 B4 Aperture: Chemically etched stainless steel with 1 1 black oxide finish 2 2 Rotor: Electroformed nickel and chemically 3 3 etched stainless steel with black nickel finish 4 4 5 5 Detent Springs: Tinned music wire 6 6 PC Boards: NEMA grade FR-4 7 7 Through Bolts: Stainless steel, unplated 8 8 Through Bolt Nuts: Stainless steel 9 Switch Assembly Cover: Thermosetting plastic INDICATES LOGIC HIGH 10 BLANK INDICATES LOGIC LOW Mounting Hardware: One brass, cadmium- 11 plated nut and lockwasher supplied with each 12 switch. Nut is 0.094 inches thick by 0.562 13 inches across flats. 14 4 BIT, 16 POSITION 15 Position B1 B2 B3 B4 16 ACCESSORIES 1 17 See page I-41. For control knobs see page 2 18 I-57. 3 19 4 20 ORDERING INFORMATION 5 21 Options include stainless steel detent housing 6 22 for higher rotational torque applications. Metal 7 23 shaft and bushing available. Custom shaft and 8 24 bushing configurations available. Contact 9 25 Grayhill for information on angles of throw 10 26 11 27 and stop strength. 12 28 13 29 14 30 61A32-025 15 31 16 32 NUMBER OF POSITIONS 32 = 32 POSITIONS WITH 10 OF THROW INDICATES LOGIC HIGH INDICATES LOGIC HIGH 24 = 24 POSITIONS WITH 12 OF THROW BLANK INDICATES LOGIC LOW BLANK INDICATES LOGIC LOW 16 = 16 POSITIONS WITH 18 OF THROW 8 = 8 POSITIONS WITH 36 OF THROW TERINATION BLANK = PINS -XXX = CABLE LENGTH CABLE LENGTH IS DENOTED IN .5 INCREMENTS FROM 025=2.5 INCHES TO 250=25.0 INCHES. Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com I-18