Mechanical Encoders SERIES 25L Hex, Gray and Quadrature Code FEATURES * Price Competitive to Similar Designs * Quality Construction and Contact Materials * Multiple Code and Indexing Choices DIMENSIONS * 100,000 Life Cycles * Less than 1.0" Square * Manufactured to ISO 9001 Standards In inches (and millimeters) .925 .010 (23,50 0,25) .343 .025 (8,71 0,64) .865 .015 (21,97 0,38) .045 .005 (1,14 0,13) NON-TURN C L TAB 3/8-32 UNEF-2A THREAD .025 .002 (0,64 0,05) SQUARE PIN (3 PLACES) .865 .015 (21,97 0,38) Optical and Mechanical Encoders 1.020 .010 (25,91 0,25) O .470 .010 (11,94 0,25) .250 .015 (6,35 0,38) .250 + .001 -.002 (6,35 + 0,03 -0,05) DIA. .320 .010 (8,13 0,25) .400 .015 (10,16 0,38) CL BUSHING FLATS CL .500 .010 (12,7 0,25) .250 .015 (6,35 0,38) .500 .015 (12,7 0,38) NON-TURN TAB O .120 .005 (3,05 0,13) WIDE BY .068 .005 (1,73 0,13) THICK CL .590 .010 (14,97 0,25) .250 .010 (6,35 0,25) MOUNTING BRACKET .219 .004 (5,56 0,10) 90 .100 .005 (2,54 0,13) TYP. CL SHAFT FLAT LOCK TAB (2) FOR MOUNTING BRACKET 25J5155 TRUTH TABLES Switch Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Clockwise Rotation Clockwise Rotation 4-Bit Gray Code-16 Position 4-Bit Binary Code Hexadecimal-16 Position Code Position 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Output 1 2 4 8 Indicates closed circuit; blank indicates open circuit. Quadrature 2-Bit Code 1/4 Cycle per Detent CW ROTATION HIGH OUTPUT "A" LOW HIGH OUTPUT "B" LOW POS. POS. POS. POS. POS. POS. #1 #2 #3 #4 #5 #6 OUTPUT TABLE I-51 Switch Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Code Position 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 Output 4 Clockwise Rotation Quadrature 2-Bit Code 1/4 Cycle per Detent 8 Indicates closed circuit; blank indicates open circuit. Switch Position 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 "A" Output "B" Indicates closed circuit; blank indicates open circuit. Code repeats every 4 positions. Grayhill, Inc. * 561 Hillgrove Avenue * LaGrange, Illinois 60525-5997 * USA * Phone: 708-354-1040 * Fax: 708-354-2820 * www.grayhill.com Mechanical Encoders SPECIFICATIONS Electrical Ratings Mechanical Ratings Materials and Finishes Switching Loads: 1.5 mA at 115 Vac, resistive; 150 mA at 14 Vdc, resistive Current Carrying Capacity: 250 mA maximum at 28 Vdc, resistive load Contact Resistance: 75 m, typical Insulation Resistance: 1000 m minimum between terminals Voltage Breakdown: 1000 Vac minimum between terminals Life Expectancy: 100,000 cycles of operation at rated loads. One cycle of operation is a rotation through all of the active positions and a return to the starting position. Rotational Torque: 2 to 6 in-oz Operating Temperature Range: -65 C to +85 C Storage Temperature Range: -65 C to +85 C Continuous Rotation: All standard switches are continuous rotation. Desired stop locations supplied upon request. Anti-Rotation Device: Integral non-turn tab, flatted bushing, .375" diameter, .320 double "D" across flats. Termination: Standard is PC style, parallel to shaft, facing rear. Options include PC, parallel to shaft, facing front; PC, perpendicular to shaft. Panel Mounting Torque: 10 in-lbs maximum Bushing/Housing and Shaft/Rotor: Reinforced thermoplastic Detent Ball: Stainless steel, nickel-plated Detent Spring: Tinned music wire Contacts: Beryllium copper, gold plate over nickel Terminals: Copper alloy, CDA #725, solder plate over nickel Output Board: FR-4, copper/nickel-plated Mounting Hardware: Brass, cadmium-plated hex nut Mounting Bracket: Stainless Steel, tin-plated ORDERING INFORMATION Series: 25L = Economical, single deck encoder Housing Color: B = Black housing*; R = Red housing Angle of Throw: 10 = 10, 36 positions; 11 = 11.25, 32 positions; 15 = 15, 24 positions; 18 = 18, 20 positions; 22 = 22.5, 16 positions; 30 = 30, 12 positions; 45 = 45, 8 positions 25LB10-Q-Z * Cadmium free Custom materials, styles, color and markings are available. 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. Grayhill, Inc. * 561 Hillgrove Avenue * LaGrange, Illinois 60525-5997 * USA * Phone: 708-354-1040 * Fax: 708-354-2820 * www.grayhill.com I-52 Optical and Mechanical Encoders Mounting Bracket: Z = with bracket, Blank = no bracket Code Output: H = Hexadecimal available only in 22.5 G = Gray available only in 22.5 Q = Quadrature (2-bit)