Optical and Mechanical Encoders Optical Encoders SERIES 61C 16 or 32 Position with Pushbutton FEATURES • Competitively Priced to Similar Electromechanical Switches Optically Coupled For More Than A Million Trouble-Free Rotations Has Data Entry Pushbutton Switch Activated By Switch Shaft Compatible With CMOS, TTL and HCMOS Logic Operationally Used to Move Display Icon and Input Data Used to Set Radio Frequency, Drill Depth, RPM, etc. DIMENSIONS In inches (and millimeters) .521 ± .003 DIA. (Ø 13,23 ± 0,08) .152 ± .002 .750 ± .003 (3,86 ± 0,05) .219 ± .003 DIA. TO BOTTOM (5,56 ± 0,08) 3/8-32 UNEF-2A (Ş 19,05 ± 0,08) OF KEYWAY .250 DIA. TO SHAFT THREAD (Ş 6,35) FLAT ANGLE A ± 3˚* .250 (6,35) C L .025 ± .002 OF .750 DIA. .040 (0,64 ± 0,05) (Ş 19,05) BUSHING (1,02) SQUARE PIN AND TO KEYWAY IS (6 PLACES) KEYWAY .070 .066 ± .002 (1,78) (1,68 ± 0,05) .420 (10,67) TRAVEL WIDE .100 ± .005 TYP. .525 ± .010 PIN 6 5 4 3 2 1 .140 (3,56) (2,54 ± 0,13) (13,34 ± 0,25) .375 (9,53) MAX. .450 (11,43) .050 ± .005 TYP. .100 (2,54) (1,27 ± 0,13) .312 ± .020 .728 (18,49) .629 (7,92 ± 0,51) *ANGLE A ± .005 Centerline of switch to (15,98 perpendicular of shaft flat ± 0,13) 32 Pos. 28.125° 16 Pos. 56.25° Grayhill part number and date code marked on label. Customer part number marked on request. Unless otherwise indicated, tolerances are ± .010 (0,25). I-21 Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com XX X LL 21 Optical and Mechanical Encoders Optical Encoders CIRCUITRY, TRUTH TABLE, AND WAVEFORM: Standard Quadrature 2-Bit Code Clockwise Rotation PIN # Position Output A Output B POWER +5V 6 1 R* 2 • OUTPUT A 150Ω 5 3 5% •• R* 4 • OUTPUT B 4 Indicates logic high; blank indicates logic • low. Code repeats every 4 positions. N.O. 3 PUSHBUTTON SWITCH HIGH OUTPUT 2 A LOW HIGH OUTPUT GROUND 1 B LOW * External pull-up resistors required for operation. 8.2 kΩ is suggested for TTL; 3.3 kΩ is suggested for CMOS. 1 2 3 4 5 6 POSITION NUMBER SPECIFICATIONS Pushbutton Switch Ratings Materials and Finishes Rating: 5 Vdc, 10 mA, resistive than 30 mS at 16.6 RPM. Fall Time less than 30 Bushing: Reinforced thermoplastic Contact Resistance: less than 10 ohms (TTL mS at 16.6 RPM. Shaft: Reinforced thermoplastic or CMOS Compatible) Operating Torque: 1.5 in-oz ± 30% initial (1.0 Detent Balls: Steel, nickel-plated Voltage Breakdown: 250 Vac between mutually in-oz ± 50% after life for 32 position only) Detent and Pushbutton Springs: Tinned music insulated parts. Rotational Life: more than 1,000,000 cycles of wire Contact Bounce: Less than 4 milliseconds at operation (1 cycle = 360° rotation and return) Printed Circuit Boards: NEMA grade FR-4 make and less than 10 milliseconds at break. Shaft Push Out Force: 20 lbs minimum Pushbutton Contact: Stainless steel, gold- Actuation Life: 3,000,000 operations. Mounting Torque: 10 in-lbs maximum plated Actuation Force: maximum actuation force of Board Terminals: Phosphor bronze, tin-plated 330 grams and a minimum actuation force of Mounting Hardware: One brass, cadmium- Environmental Ratings 250 grams. plated nut and lockwasher supplied with each Operating Temperature Range: –40°C to 85°C switch. Nut is 0.094 inches thick by 0.562 Storage Temperature Range: –55°C to 100°C inches across flats. Encoder Ratings Relative Humidity: 90-95% at 40°C for 96 Rotor: Reinforced thermoplastic Coding: 2-bit quadrature coded output. hours. Aperture/Dome Retainer: Lexan 141, Operating Voltage: 5.0 ±.25 Vdc Vibration Resistance: Harmonic motion with Polycarbonate Supply Current: 30 mA maximum at 5 Vdc amplitude of 15g, within a varied 10 to 2000 Hz Logic High: 3.8V for CMOS and 2.7V for TTL frequency for 12 hours per MIL-STD-202, minimum. Method 204 Logic Low: 0.8V maximum Shock Resistance: Test 1: Tested at 100g for Logic Rise and Fall Times: Rise Time less 6 mS, half sine, 12.3 ft/s Test 2: 100g for 6 mS, sawtooth, 9.7 ft/s ORDERING INFORMATION Series Style: C = Standard Angle of Throw: 00 = No detent 11 = 11.25° or 32 Positions 22 = 22.25° or 16 Positions Coding: 01 = Quadrature 61C22-01-04-02 Pushbutton Option: 01 = Without pushbutton, 02 = With pushbutton Number of Changes per Revolution: 04 for no detent and 22.25° angle of throw 08 for no detent and 11.25° angle of throw Custom knobs available, see page I-57. Available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized local Distributor or Grayhill. ACCESSORIES See page I-41. Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com I-22