25LB22-G

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 • 100,000 Life Cycles • Less than 1.0" Square • Manufactured to ISO 9001 Standards Dimensions in inches (and millimeters) .925 ± .010 (23,50 ± 0,25) .343 ± .025 (8,71 ± 0,64) .865 ± .015 (21,97 ± 0,38) .250 ± .015 (6,35 ± 0,38) .045 ± .005 (1,14 ± 0,13) .865 ± .015 (21,97 ± 0,38) Optical and Mechanical Encoders 1.020 ± .010 (25,91 ± 0,25) 3/8-32 UNEF-2A THREAD .025 ± .002 (0,64 ± 0,05) SQUARE PIN (3 PLACES) Ø .470 ± .010 (11,94 ± 0,25) NON-TURN C L TAB .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 Ø .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 1 2 output 4 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 Code position 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 OUTPUT B HIGH LOW HIGH LOW 1 2 3 4 5 2 4 Quadrature 2-Bit Code 1/4 Cycle per Detent 8 Indicates closed circuit; blank indicates open circuit. Quadrature 2-bit Code Output Table for CW Rotation OUTPUT A 1 output Clockwise rotation 6 POSITION NUMBER Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 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. 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com Mechanical Encoders Specifications Electrical Ratings 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 mΩ, typical Insulation Resistance: 1000 mΩ 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. Mechanical Ratings Optical and Mechanical Encoders Rotational Torque: 2 to 6 in-oz Operating Temperature Range: -40 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. Panel Mounting Torque: 10 in-lbs maximum Materials and Finishes 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, #725, 100% tin plate over nickel plate Output Board: FR-4, copper/nickel-plated Mounting Nut: Brass, tin/zinc-plated hex nut Mounting Bracket: Stainless Steel, tin-plated ordering information 25LB10-Q-Z 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 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) Custom materials, styles, color and markings are available. Custom knobs available. Available from your local Grayhill Distributor. For prices and discounts, contact a local Sales Office, an authorized Distributor or Grayhill. For Custom codes. Termination, Torque, Angles of Throw, call Grayhill for more information. Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com