*R oH S CO M PL IA NT Features ■ 3.3 and 5 VDC voltage supply option ■ Resolution from 64-512 PPR ■ Direction/Step output (Tachometer) ■ Long life ■ Bushing or servo mount ■ High operating speed ■ Non-contacting magnetic technology ■ Highly repeatable ■ Small size ■ Sealed option ■ CMOS and TTL compatible ■ Magnetic technology EMS22D - Non-Contacting Direction/Step Encoder Electrical Characteristics Resolution ........................................................................................................................................................................................................... 64 to 512 PPR Insulation Resistance (500 VDC) ......................................................................................................................................................................1,000 megohms Electrical Travel ........................................................................................................................................................................................................ Continuous Supply Voltage ........................................................................................................................................................................5.0 VDC ±10 %, 3.3 VDC ±10 % Supply Current .................................................................................................................................................................................................20 mA maximum Output Voltage Low Output Level ................................................................................................................................................................................. Vss+0.4 V maximum High Output Level................................................................................................................................................................................... Vdd-0.5 V minimum Output Current With 4.5 VDC Supply Voltage .......................................................................................................................................................................4 mA maximum With 3.0 VDC Supply Voltage .......................................................................................................................................................................2 mA maximum Rise/Fall Time (Incremental Output) ............................................................................................................................................................... 500 ns maximum Shaft RPM (Ball Bearing) .........................................................................................................................................................................10,000 rpm maximum Hysteresis............................................................................................................................................................................................................................ 0.7 ° Accuracy Nominal ..........................................................................................................................................................................................................±0.7 ° or better Worst Case................................................................................................................................................................................................................... ±1.4 ° Output Transition Noise................................................................................................................................................................................... 0.12 ° RMS max. Environmental Characteristics Operating Temperature Range........................................................................................................................................ -40 ºC to +125 ºC (-40 °F to +257 °F) Storage Temperature Range ........................................................................................................................................... -55 °C to +125 °C (-67 °F to +257 °F) Humidity ....................................................................................................................................................................MIL-STD-202, Method 103B, Condition B Vibration .............................................................................................................................................................................................................................. 15 G Shock .................................................................................................................................................................................................................................. 50 G Rotational Life S Bushing (@1,000 rpm)................................................................................................................................................................. 100,000,000 revolutions T & W Bushings (@1,000 rpm with 250 g side load) ........................................................................................................................ 50,000,000 revolutions IP Rating ............................................................................................................................................................................................................................. IP 65 Mechanical Characteristics Mechanical Angle ............................................................................................................................................................................................ 360 ° Continuous Torque Starting .................................................................................................................................................................................... 43 ±21 g-cm (0.6 ±0.3 oz-in.) Running ................................................................................................................................................................................... 29 ±14 g-cm (0.4 ±0.2 oz-in.) Mounting Torque.........................................................................................................................................................................................203 N-cm (18 lb.-in.) Shaft End Play......................................................................................................................................................................0.30 mm (0.012 ”) T.I.R. maximum Shaft Radial Play ..................................................................................................................................................................0.12 mm (0.005 ”) T.I.R. maximum Weight ..............................................................................................................................................................................................................11 gms. (0.4 oz.) Terminals ......................................................................................................................................................................................... Axial, radial or ribbon cable Soldering Condition Manual Soldering .................................................................................................................... 96.5Sn/3.0Ag/0.5Cu solid wire or no-clean rosin cored wire 370 °C (700 °F) max. for 3 seconds Wave Soldering ............................................................................................................................................. 96.5Sn/3.0Ag/0.5Cu solder with no-clean flux 260 °C (500 °F) max. for 10 seconds Wash processes ....................................................................................................................................................................................... Not recommended Marking.................................................................................................................................... Manufacturer’s trademark, name, part number, and date code. Hardware ....................................................................One lockwasher and one mounting nut supplied with each encoder, except on servo mount versions. Pin Configuration Output Type Direction/Step Pin 1 Pulse Pin 2 Direction Pin 3 GND Pin 4 Index Pin 5 VCC* * Can be 5 or 3.3 VDC depending on the version. ** Active low chip select pin; if not used connect pin 6 to GND. *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. Pin 6 CS** Applications ■ Material handling equipment ■ Medical ■ Brushless DC motor commutation ■ Office equipment ■ Robotics ■ Audio and broadcast equipment ■ Automotive ■ Industrial automation ■ Petroleum refinery EMS22D - Non-Contacting Direction/Step Encoder Output Type Waveform and Variant Table Direction/Step Output PPR 3.3 Vcc 5.0 Vcc Index 1 Index 3 512 X 512 X X 512 X 512 X 256 X 256 X 256 X X X X 128 X X X 64 X LSB X 128 X X X 128 64 Index 3 = 3 LSB X X 128 Z X X 256 Index 1 = 1 LSB X X X X X 64 X 64 X CW X CCW Direction X t Dir valid 500 ns B A A Microprocessor B Encoder 1 CS1 Chip Select Hardware Sample Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. Consult factory for options not shown, including: • Wire lead or cable options • Special shaft/bushing sizes and features • Connectors • Special performance characteristics • Non-standard resolutions • PCB mounting bracket EMS22D - Non-Contacting Direction/Step Encoder Product Dimensions Shaft Style D (Bushing T) 13.89 ± .38 (.547 ± .015) 15.88 ± .25 (.625 ± .010) 1.57 ± 0.12 (.062 ± .005) DIA. 3.17 +.00/-.01 (.1247 +.0000/-.0003) 10.29 ± 0.12 (.405 ± .005) DIA. 21.21 ± .25 (.835 ± .010) 2.79 (.110) .51 ± .03 (.020 ± .001) 6 PLCS. 2.01 (.079) 5 PLCS. .51 ± .03 (.020 ± .001) 6 PLCS. 9.53 (.375) 20.88 ± .25 (.822 ± .010) 4.00 (.157) Shaft Style B (Bushing S) 13.89 ± .38 (.547 ± .015) 15.88 ± .25 (.625 ± .010) 1.57 ± 0.12 (.062 ± .005) DIA. 6.34 (0.249) 10.29 (.405) DIA. 21.21 ± .25 (.835 ± .010) 2.79 (.110) .51 ± .03 (.020 ± .001) 6 PLCS. 2.01 (.079) 5 PLCS. .51 ± .03 (.020 ± .001) 6 PLCS. 9.53 (.375) 20.88 ± .25 (.822 ± .010) 4.00 (.157) DIMENSIONS: 9.53 (.375) 13.89 ± .38 (.547 ± .015) Shaft Style D (Bushing W) 1.57 (.062) 15.88 ± .25 (.625 ± .010) DIA. 3.17 +.00/-.01 (.1247 +.0000/-.0003) 22.23 (.875) DIA. 21.21 ± .25 (.835 ± .010) 2.74 (.108) 19.05 (.75) DIA. .51 ± .03 (.020 ± .001) 6 PLCS. 2.01 (.079) 5 PLCS. .51 ± .03 (.020 ± .001) 6 PLCS. 4.00 (.157) 1.57 (.062) 1.57 (.062) 22.23 ± .25 (.875 ± .010) Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. MM (INCHES) EMS22D - Non-Contacting Direction/Step Encoder Product Dimensions Cable Assembly CONNECTOR 2.00 MM PITCH, 6 CIRCUITS 2 PLCS. 254.0 ± 6.35 (10.00 ± 0.25) 13.97 (0.55) 2 PLCS. CIRCUIT #1 25.4 (1.0) MAX. 2 PLCS. CIRCUIT #1 PIN 1 IDENTIFICATION STRIPE FLAT CABLE 2.0 MM PITCH ROUND CONDUCTOR 24 AWG (7X32) STRANDED, TOP COAT 6 CIRCUITS, P.V.C. INSULATION DIMENSIONS: MM (INCHES) How To Order BOURNS EMS22 22 MM NON-CONTACTING DIRECTION/STEP ENCODER E M S 2 2 D 5 1 - B 2 8 - L S 5 INDEX CHANNEL Code Description 1 LSB 1 3 LSB 3 VOLTAGE SUPPLY Code Description 3.3 VDC 3 5 VDC 5 SHAFT LENGTH DESIGNATOR* Code Description 1/2 " Long 16 5/8 " Long 20 7/8 " Long 28 25 mm Long 25 (Available with D Bushing Only) SHAFT STYLE Code B C D R M Available With Description Bushings (Code) 1/4 " Dia., Plain End S 1/4 " Dia., Flatted End S 1/8 " Dia., Plain End T, W 6 mm Dia., Slotted End D 6 mm Dia., Flatted End D OUTPUT TYPE Code Description D Direction/Step TERMINAL CONFIGURATION** Code Description L Axial, MultiPurpose Pin Rear Ribbons M Cable with Connector Rear Ribbons W Cable No Connector RESOLUTION PPR Code 64 2 128 3 256 4 512 5 BUSHING DESIGNATOR Code Description S 3/8 " D X 3/8 " L Threaded (Single Ball Bearing) T 3/8 " D X 3/8 " L Threaded (Dual Ball Bearing) Servo Mount 7/8 " D W (Dual Ball Bearing) 9 mm D X 7.94 mm L Threaded D (Single Ball Bearing) * Shaft length measured from mounting surface. ** Standard ribbon cable is 10 inches long. Consult factory for other lengths. REV. 07/12 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.