Optical and Mechanical Encoders Specifications are subject to change. Please refer to the current datasheet on www.grayhill.com for the most current published specifications for this product. Mechanical Encoders AVAILABLE CODES SERIES 26 Hexadecimal Binary and Gray Code Octal BCD (Adjusted) Quadrative Custom (4-Bit, 16 position maximum) RoHS Compliant DIMENSIONS in inches (and millimeters) C OF BUSHING FLATS 1/4-28 UNF-2A THREAD COMMON TERMINAL L C POS. 0 L .300 .125 .003 DIA. (7,62) ( 3,18 0,10) .150 (3,81) C 2 PLACES L ANGLE A .025 .005 .094 (2,39) 12 C (0,64 0,13) L C 84 .250 (6,35) 3 PLACES .203 .003 .180 (4,57) (5,16 0,10) .375 (9,53) .100 (2,54) ACROSS FLATS 2 PLACES .332 (8,43) .500 .015 (12,7 0,38) DIA250 (6,35) .200 (5,08) Maximum Switch Angle .957 Positions A Grayhill part number and date (24,31) code marked on label. Customer 8 67.5 REF. part number marked on request. 16 33.75 Unless specified otherwise, all tolerances are .015 ( 0,38) o SPECIFICATIONS Relative Humidity: 90-95% at 40 C for CODE AND TRUTH TABLE Electrical Ratings 240 hours (MIL-STD-202 Method 103, Test BCD Output* Gray Output* Rated: 25,000 cycles with logic compatible Condition A) loads. Make and break 200 mA. Thermal Cycling: per MIL-STD-202, Method 1 2 4 8 1 2 4 8 Contact Resistance: 500 milliohms maximum 107, Test Condition A, with an exception of (less than 100 milliohms initially) -65C as the low temperature 1 0 Insulation Resistance: 1000 megohms Shaft and Panel Seal 2 1 minimum (10,000 megohms initially) All switches are provided with a shaft and 3 2 Dielectric Strength: 250 Vac minimum panel seal. 4 3 Materials and Finishes 5 4 OPTIONS Panel Seal: Silicone Rubber 6 5 Adjustable Stop Switches Shaft Seal: Fluorosilicone The switch may have continuous rotation, or 7 6 Mounting Nut (mounting hardwareone be adjusted to limit the rotation. The panel per switch): Brass, tin/zinc-plated 8 7 seal ring can be removed to expose the stop Internal Tooth Lockwasher (mounting 9 8 pin holes on the front of the switch. Two stop hardware): Steel,tin/zinc-plated 10 9 pins and panel seal o-ring are supplied with Detent Balls: Carbon steel, nickel-plated the switch. One or both may be used to limit 11 10 Detent Spring: Pretinned music wire the rotation as desired. Detent Rotor: Thermoplastic 12 11 Shaft, Stop Arm and Stop Pins: Stainless steel 13 12 Custom encoders with options such as custom Bushing: Zamak II tin/zinc alloy, zinc-plated 14 13 code output, 1/4 shaft diameter, factory set Switch Base: Diallyl phthalate stops and longer shaft terminal lengths are 15 14 Printed Circuit Board: NEMA Grade FR-4. Terminals: Brass, gold-plated over nickel plate 16 15 Contacts: Copper alloy, gold-plated over Recommended Panel Cutout *Dot indicates terminal tied to common. nickel plate .254 Additional Characteristics 26GSD22-01-1-16S-C Rotational Torque: 4 to 8 oz-in initial Series Code Vibration Resistance: 10 to 55 Hz at POS.1 Output Code: C = Continuous, 0.060 double amplitude no damage and G = Gray, A = BCD F = Fixed, .208 no contact openings per MIL-STD-202, Blank = Adjustable Sealed Method 201A Positions: Stops: 08S, 16S, or AJS for adjustable Shock Resistance: Passes medium D = Adujustable, Poles: 1 requirement MIL-DTL-3786 (MIL-STD-202, Blank = Continuous or Fixed Method 213) Decks: 1 Stop Strength: 5 in-lbs minimum Angle of Throw: 22 = 22.5, 45 = 45 Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com Switch Position Code PositionOptical and Mechanical Encoders Specifications are subject to change. Please refer to the current datasheet on www.grayhill.com for the most current published specifications for this product. Mechanical Encoders SerieS 26 Pull to Turn DeSCriPTiON An isolated position is one that cannot be reached by normal rotation. This version of the Series 26 isolated Positions mechanical encoder requires that the operator Pull-To-Turn in order to reach the isolated position. To rotate out of the isolated position, the operator must Pull-to-Turn again. BCD or Gray Code Use isolated positions to protect a switch position from indiscriminate rotation. This feature is typically used for positions such as calibrate, off and/or stand-by. Shaft & Panel Seal DiMeNSiONS in inches (and millimeters) Grayhill part number and date code marked on label. Customer part number marked on request. Unless specified otherwise, all tolerances are .015 ( 0,38) OPTiONS CODe AND Tr UTH TABLe SPeCiFiCATiONS isolated Positions electrical ratings The Grayhill system for isolating positions lets rated: 25,000 cycles with logic compatible you choose the positions to be isolated. Grayhill BCD Output* Gray Output* loads. Make and break 200 mA. inserts isolation posts next to the positions to be Contact resistance: 500 milliohms maximum 1 2 4 8 1 2 4 8 isolated. Consider a continuous rotation switch (less than 100 milliohms initially) with a 22.5 angle of throw. The terminals are insulation resistance: 1000 megohms 1 0 listed here from 1 through 16 with a space minimum (10,000 megohms initially) 2 1 between each to indicate where isolation posts Dielectric Strength: 250 Vac minimum 3 2 might be inserted. 4 3 Materials and Finishes 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 5 4 Panel Seal: Silicone Rubber To isolate position 1 and position 2 from all other Shaft Seal: Fluorosilicone 6 5 positions and from each other, indicate isolation Mounting Nut: Brass, tin/zinc-plated posts as shown here: 7 6 Lockwasher: Steel, tin/zinc-plated 16P1P2P3 4 5 6 7 8 9 10 11 12 13 14 15 16 8 7 Detent Balls: Carbon steel, nickel-plated To isolate just position 1, describe like this: 9 8 Detent Spring: Pretinned music wire Detent rotor: Thermoplastic 16P1P2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 10 9 Shaft, Stop Arm and Pins: Stainless steel To isolate positions 1 and 2 from all other 11 10 Bushing: Zamak 3 zinc alloy, tin plate positions, but not from each other, do this: 12 11 Switch Base: Diallyl phthalate 16P1 2P3 4 5 6 7 8 9 10 11 12 13 14 15 16 13 12 Printed Circuit Board: NEMA Grade FR-4 Terminals: Brass, gold over nickel plate 14 13 Fixed Stop Switches Contacts: Copper alloy, gold over nickel 15 14 The switch may have continuous rotation, or 16 15 specified to limit the rotation. Additional Characteristics When a 1-pole switch has less than the maximum *Dot indicates terminal tied to common. Shaft Vertical Travel: .050 +/- .010 Pull Force required: 1.75 +/- .75 lbs. number of positions, consider also the stop system. Following is the arrangement for a 6 rotational Torque: 7 to 13oz-in OrDeriNG iNFOrMATiON position switch with the position 1 isolated. Vibration resistance: 10 to 55 Hz at Due to the vast number of possible congfi urations 0.060 double amplitude no damage and of isolated positions and stop arrangements, STOP 1P2 3 4 5 6 STOP no contact openings per MIL-STD-202, each Series 26 Pull-to-Turn Mechanical Encoder The word STOP indicates the conventional Method 201A will be assigned a unique part number. For switch stops, which limit rotation to positions 1 Shock resistance: Passes medium example, part 26YY50202 is a 16 position gray through 6. To isolate position 1 we insert only requirement per MIL-DTL-3786 code switch with positions 1 and 16 isolated and one isolation postbetween terminals 1 and Stop Strength: 5 in-lbs minimum a STOP at each extreme. 2. The stop system already prevents rotation Mounting Strength: 15 in-lbs max beyond terminal 1. o relative Humidity: 90-95% at 40 C for Contact Grayhill or an authorized representative 240 hours (MIL-STD-202 Method 103, Test to create a part number and obtain pricing. Condition A) Grayhill, Inc. 561 Hillgrove Avenue LaGrange, Illinois 60525-5997 USA Phone: 708-354-1040 Fax: 708-354-2820 www.grayhill.com Switch Position Code Position