*R oH S CO M PL IA N T 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. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users 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. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users 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) 7.94 ± .012 (.313 ± .005) 1.57 ± 0.12 (.062 ± .005) 10.29 ± 0.12 (.405 ± .005) DIA. DIA. 3.17 +.00/-.01 (.1247 +.0000/-.0003) 21.21 ± .25 (.835 ± .010) .51 ± .03 (.020 ± .001) 6 PLCS. 2.79 (.110) AR LUG 1.18 ± 0.12 (.047 ± .005) 0.66 ± 0.12 X (.026 ± .005) HIGH (FMS) 9.53 (.375) 22.23 ± .78 (.875 ± .031) 4.00 (.157) 2.01 (.079) 5 PLCS. R .51 ± .03 (.020 ± .001) 6 PLCS. 7.95 ± .012 (.313 ± .005) 10.67 ± 0.12 (.420 ± .005) DIA. 3.18 ± 0.12 (.125 ± .005) DIA. PANEL LAYOUT Shaft Style B (Bushing S) 13.89 ± .38 (.547 ± .015) 15.88 ± .25 (.625 ± .010) 7.94 ± 0.12 (.313 ± .005) 1.57 ± 0.12 (.062 ± .005) DIA. 6.34 (0.249) 10.29 (.405) DIA. 21.21 ± .25 (.835 ± .010) .51 ± .03 (.020 ± .001) 6 PLCS. 2.79 (.110) 9.53 (.375) 22.23 ± .78 (.875 ± .031) 4.00 (.157) 2.01 (.079) 5 PLCS. AR LUG 1.18 ± 0.12 (.047 ± .005) 0.66 ± 0.12 X (.026 ± .005) HIGH (FMS) R 7.95 ± 0.12 (.313 ± .005) .51 ± .03 (.020 ± .001) 6 PLCS. 10.67 ± 0.12 (.420 ± .005) DIA. DIMENSIONS: MM (INCHES) 3.18 ± 0.12 (.125 ± .005) DIA. PANEL LAYOUT Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. EMS22D - Non-Contacting Direction/Step Encoder Product Dimensions (Continued) Shaft Style D (Bushing W) 9.53 (.375) 13.89 ± .38 (.547 ± .015) 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. 1.57 (.062) 4.00 (.157) 1.57 (.062) 22.23 ± .78 (.875 ± .031) 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. FLAT CABLE 2.0 MM PITCH ROUND CONDUCTOR 24 AWG (7X32) STRANDED, TOP COAT 6 CIRCUITS, P.V.C. INSULATION DIMENSIONS: MM (INCHES) PIN 1 IDENTIFICATION STRIPE CIRCUIT #1 3312 - 2- mm SMD Trimming Potentiometer EMS22D Non-Contacting Direction/Step Encoder 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. 01/14 Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications.