Optical and Mechanical Encoders Mechanical Encoders SerieS 51 Binary or Binary Complement Code FeATUreS • PC Mount, 30° Angle of Throw • 2 to 12 Positions • .562" Diameter, 200 mA • Shaft and Panel Seal • Adjustable Stop Versions DiMenSionS in Inches (and millimeters) .250 – .015 (6,35 – 0,38) .537 + .020 .030 (13,64 + 0,51 0,76) .125 + .015 .020 (3,18 + 0,38 .375 – .015 .232 (5,89) 0,51) .093 – .005 (9,53 – 0,38) COMMON CIRCLE COMMON (2,36 – 0,13) .035 (0,89) OF CENTERS POLE 1 .250 + .020 .015 105¡ REF. (6,35 + 0,51 0,38) COMMON POLE 2 C COMMON L .125 – .002 SHAFT POLE 3 (3,18 – 0,05) FLAT .203 – .003 (5,16 – 0,08) 1/4-28 UNF-2A .382 (9,70) TERMINAL THREAD CIRCLE OF CENTERS .562 + .025 .015 pC TerMinAl DeTAil pC CoMMon DeTAil (14,27 + 0,64 0,38) .020 – .003 .125– .015 .125– .015 (0,51 – 0,08) (3,18 – 0,38) (3,18 – 0,38) See circuit diagrams for omitted terminals. .020 – .003 .062 – .004 .025 – .002 (0,51 – 0,08) (1,57 – 0,10) (0,64 – 0,05) All switches are provided with PC mount terminals. Grayhill part number and date code marked on label. Customer part number marked on request. CirCUiT DiAGrAMS Switch is viewed from the shaft end and shown Indicates Terminal is present. Switch position numbers do not correspond to in switch position number 1, which is decimal Indicates Terminal is omitted. the decimal input or binary output. number zero and BCD number zero. Note: Connections must be made on See Truth Tables. PC board to generate code output. BCD BCD Complement TIED TOGETHER TIED TOGETHER ON PC BOARD ON PC BOARD 1 OUTPUT 1 OUTPUT 4 OUTPUT 4 OUTPUT 4 3 4 TIED TOGETHER 3 2 OUTPUT TIED TOGETHER ON PC BOARD 2 C1 5 C1 5 ON PC BOARD 2 TIED TOGETHER ON PC BOARD 1 1 6 6 ROTATING ROTATING C2 C2 8 OUTPUT 8 OUTPUT CONTACTS CONTACTS 7 12 12 7 2 OUTPUT 11 11 8 8 C3 C3 TIED TOGETHER 10 9 ON PC BOARD 9 10 TIED TOGETHER COMMON COMMON ON PC BOARD Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois 60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com GRAYHILL 8 7 6 5 Optical and Mechanical Encoders Mechanical Encoders TrUTh TABleS opTionS Binary Code Decimal Binary Code Decimal Complement Adjustable Stops Set and reset stops to limit rotation. All Dec. Switch 2nd output Terminal Dec. Switch 2nd output Terminal dimensions are the same as for fixed stop no. pos'n.* pin** 1 2 4 8 no. pos'n.* pin** 1 2 4 8 switches. Switches are shipped with the stop 0 1 4-5 0 1 12-1 blades located to limit rotation to 11 switch 1 2 5-6 1 2 1-2 positions. For continuous rotation, remove both 2 3 6-7 2 3 2-3 blades. For limited rotation, remove the 2nd 3 4 7-8 3 4 3-4 (clockwise) blade and move it to the hole located 4 5 8-9 4 5 4-5 between the positions shown in the Truth Tables. 5 6 9-10 5 6 5-6 Removal of a plastic washer provides access to 6 7 10-11 6 7 6-7 the blades and slots. Adjustable stop versions 7 8 11-12 7 8 7-8 are available in unsealed styles only. 8 9 12-1 8 9 8-9 9 10 1-2 9 10 9-10 Shaft and panel Seal 10 11 2-3 10 11 10-11 11 12 3-4 11 12 11-12 Switches are available in sealed or unsealed styles. For sealed style, the panel is sealed by Indicates contact made to common an o-ring at the base of the bushing. The shaft * The switch position number is the terminal location opposite the shaft flat; it is is sealed by an o-ring inside of bushing. After not the same as the decimal number. the switch is mounted, seals do not alter the ** To limit an adjustable stop switch to the decimal number shown, insert the dimensions of the unsealed style. second pin in the hole lying between the 2 switch positions indicated. SpeCiFiCATionS electrical rating Materials and Finishes Additional Characteristics rated: To make and break 125 mA 30 Vdc Bases: Thermoset plastic Contact Type: Wiping contacts resistive load for 25,000 cycles of operation. Detent rotor: Nylon Shaft Flat orientation: Switch position is Cycle: (1 cycle = 360° rotation and return) Test Shaft, Stop Blades, Stop Arm, Thrust Washer defined as that position that is opposite the shaft conditions are standard atmospheric pressure, And retaining ring: Stainless steel flat. The location of the contacts in relation to the 25°C and 68% relative humidity. Detent Balls: Steel, nickel-plated shaft flat is shown on the circuit diagram. Contact resistance: 20 milliohms initially, Bushing: Zinc, Tin-zinc-plated Terminals: Only the active position terminals, 300 milliohms maximum after life Detent Spring: Stainless steel as shown in the circuit diagram are supplied insulation resistance: 50,000 megohms Common Terminals and rings: Brass, gold with the switch. All common terminals are initially, 10,000 megohms after life plate .00003" minimum over silver plate .0003" supplied. Voltage Breakdown: 500 Vac between minimum Stop Strength: 7.5 in-lbs minimum mutually insulated parts Terminals: Brass with silver contact surface, rotational Torque: 8 to16 in-oz gold-plated .00003" Bushing Mounting: Required for these rotor Contact: Berillium copper with silver switches contact surface Maximum Mounting Torque: 15 in-lbs. Shaft And panel Seal: Silicone rubber Mounting hardware: One mounting nut, .089" thick by .375" across flats, and one internal tooth lockwasher are supplied with the switch. orDerinG inForMATion Type of Maximum no. BCD output BCD Complement Switch of positions Unsealed Sealed Unsealed Sealed 7 513360-7 513374-7 513361-7 513375-7 8 513360-8 513374-8 513361-8 513375-8 Fixed Stop 9 513360-9 513374-9 513361-9 513375-9 10 513360-10 513374-10 513361-10 513375-10 11 513360-11 513374-11 513361-11 513375-11 12 513360-12-F 513374-12-F 513361-12-F 513375-12-F Continuous Rotation 12 513360-12-C 513374-12-C 513361-12-C 513375-12-C Adjustable Stop 12 513385 ——— 513384 ——— The -C suffix indicates continuous rotation. The -F suffix indicates a fixed stop between positions 1 and 12. 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