optical and mechanical encoders grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com mechanical encoders series 51 binary or binary complement code circuit diagrams switch is viewed from the shaft end and shown in switch position number 1, which is decimal number zero and bcd number zero. bcd bcd compleme nt 10 9 8 7 6 c2 5 4 3 2 1 12 11 c3 c1 4 output 1 output 2 output 8 output tied together on pc board common rotating contacts tied together on pc board tied together on pc board 10 9 8 7 6 c2 5 4 3 2 1 12 11 c3 c1 4 output 1 output 2 output 8 output tied together on pc board common rotating contacts tied together on pc board tied together on pc board tied together on pc board indicates terminal is present. indicates terminal is omitted. note: connections must be made on pc board to generate code output. switch position numbers do not correspond to the decimal input or binary output. see truth tables. 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) .093 .005 (2,36 0,13) 105? shaft flat c l .203 .003 (5,16 0,08) ? .562 + .025 C.015 (14,27 + 0,64 C 0,38) 87 65 grayhill ? .125 .002 (3,18 0,05) .250 + .020 C .015 (6,35 + 0,51 C0,38) .375 .015 (9,53 0,38) .250 .015 (6,35 0,38) .537 + .020 C.030 (13,64 + 0,51 C0,76) 1/4-28 unf-2a thread .125 + .015 C.020 (3,18 + 0,38 C0,51) .035 (0,89) ref. common pole 1 common pole 3 ? .382 (9,70) terminal circle of centers common pole 2 ? .232 (5,89) common circle of centers .020 .003 (0,51 0,08) .062 .004 (1,57 0,10) .125 .015 (3,18 0,38) ? .025 .002 (0,64 0,05) .125 .015 (3,18 0,38) .020 .003 (0,51 0,08) see circuit diagrams for omitted terminals. all switches are provided with pc mount terminals. gra y hill p art number and date code marked on label. customer p art number marked on re q uest. pc terminal detail pc common detail encoder 7
grayhill, inc. ? 561 hillgrove avenue ? lagrange, illinois 60525-5997 ? usa ? phone: 708-354-1040 ? fax: 708-354-2820 ? www.gr ayhill.com optical and mechanical encoders mechanical encoders available from your local grayhill distributor. for prices and discounts, contact a local sales office, an authorized local distributor or grayhill. options adjustable stops set and reset stops to limit rotation. all dimensions are the same as for fixed stop switches. switches are shipped with the stop blades located to limit rotation to 11 switch positions. for continuous rotation, remove both blades. for limited rotation, remove the 2nd (clockwise) blade and move it to the hole located between the positions shown in the truth tables. removal of a plastic washer provides access to the blades and slots. adjustable stop versions are available in unsealed styles only. shaft and panel seal switches are available in sealed or unsealed styles. for sealed style, the panel is sealed by an o-ring at the base of the bushing. the shaft is sealed by an o-ring inside of bushing. after the switch is mounted, seals do not alter the dimensions of the unsealed style. dec. switch 2nd output terminal no. pos'n.* pin** 1248 0 1 4-5 1 2 5-6 2 3 6-7 3 4 7-8 4 5 8-9 5 6 9-10 6 7 10-11 7 8 11-12 8 9 12-1 9 10 1-2 10 11 2-3 11 12 3-4 indicates contact made to common * the switch position number is the terminal location opposite the shaft flat; it is not the same as the decimal number. ** to limit an adjustable stop switch to the decimal number shown, insert the second pin in the hole lying between the 2 switch positions indicated. truth tables binary code decimal binary code decimal complement electrical rating rated: to make and break 125 ma 30 vdc resistive load for 25,000 cycles of operation. cycle: (1 cycle = 360 rotation and return) test conditions are standard atmospheric pressure, 25c and 68% relative humidity. contact resistance: 20 milliohms initially, 300 milliohms maximum after life insulation resistance: 50,000 megohms initially, 10,000 megohms after life voltage breakdown: 500 vac between mutually insulated parts specifications 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. ordering information materials and finishes bases: thermoset plastic detent rotor: nylon shaft, stop blades, stop arm, thrust washer and retaining ring: stainless steel detent balls: steel, nickel-plated bushing: zinc, tin-zinc-plated detent spring: stainless steel common terminals and rings: brass, gold plate .00003" minimum over silver plate .0003" minimum terminals: brass with silver contact surface, gold-plated .00003" rotor contact: berillium copper with silver contact surface 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. additional characteristics contact type: wiping contacts shaft flat orientation: switch position is defined as that position that is opposite the shaft flat. the location of the contacts in relation to the shaft flat is shown on the circuit diagram. terminals: only the active position terminals, as shown in the circuit diagram are supplied with the switch. all common terminals are supplied. stop strength: 7.5 in-lbs minimum rotational torque: 8 to16 in-oz bushing mounting: required for these switches maximum mounting torque: 15 in-lbs. dec. switch 2nd output terminal no. pos'n.* pin** 1248 0 1 12-1 1 2 1-2 2 3 2-3 3 4 3-4 4 5 4-5 5 6 5-6 6 7 6-7 7 8 7-8 8 9 8-9 9 10 9-10 10 11 10-11 11 12 11-12 encoder 8
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