Bourns® Rotary Encoders Short Form Brochure Introduction Bourns® Sensors Controls Product Line has solutions as well as providing excellent technical continued to expand its encoder product offering support, Sensors and Controls is committed to with a wide variety of models to support our providing our customers with reliable rotary customers’ specific applications. Recognized encoder solutions. worldwide for supplying standard and custom General Design Consideration Encoders are the digital version of potentiometers adjustment of the device in a clockwise or counter- and panel controls. Rather than providing a resistive clockwise direction triggering some action by the variable output with rotation of the shaft, encoders digital circuit. Applied as machine-to-machine simulate an on/off switching digital output. Applied interface (MMI) devices, encoders are typically as human-to-machine interface (HMI) devices, coupled to a motor or other mechanical device to encoders are typically used to sense human sense speed and direction of rotation. Important Characteristics In selecting an encoder for your application, the classifications of encoders: contacting (mechanical) most important characteristics to consider are the and non-contacting (optical and magnetic). Your type of technology, type of output signal, speed of application will dictate the type of technology that rotation, expected cycle life and switching capability will be best suited for your design. of the product. There are two basic technology Custom Solutions A wide range of “value-added” enhancements are available to provide our customers with cost-effective solutions. Bourns’ capability to develop custom encoder solutions and modifications includes the following: • Cable harness/lead wires • Hardware • Detents • Marking • Custom output • Mechanical stops • Seal • Mounting brackets • Torque • Special test requirements • Special packaging • Customized shaft options • Terminal configurations For additional information on value-added enhancements, please contact your local Bourns Sales Representative. 2 Encoder Selection Guide Flowchart Encoder Request Output Type Output Type Quadrature Output Type PWM Absolute Rotational Life Rotational Life Rotational Life < 1M Shaft Revolutions ECW ES PEC09 PEC11 PEC11L PEC11S PEC12 PEC16 PEL12 PES12 ≥ 1M Shaft Revolutions ≥ 1M Shaft Revolutions ≥ 1M Shaft Revolutions EMS22 EMS22 EMS22 EM14 EN Magnetic Technology Optical Technology Contacting Technology Flowchart for assistance in selecting the appropriate encoder model for your application. 3 Bourns® Encoders ECW ES PEC09 PEC11 PEC11S Rotational Life Resolution Options (PPR) Operating Temp. Range Contact Rating Detent Option Technology Features • Exceptionally long operating life • Sturdy construction • Bushing mount • Available with PC board mounting bracket • RoHS compliant version available* • Recommended for HMI applications 200,000 shaft revolutions Quadrature 6, 9, 12, 24, 36 -40 °C to +85 °C 10 mA @ 10 VDC Yes Contacting Rotational Life Types of Output Resolution Options (PPR) Operating Temp. Range Contact Rating Detent Option Technology Features 200,000 shaft revolutions Quadrature 6, 9, 12, 24 -40 °C to +85 °C 10 mA @ 10 VDC Yes Contacting • Snap-in shaft flexibility - top or bottom • Snap-in PC board mount • Long operating life • Up to 24 full quadrature outputs per revolution • RoHS compliant version available* • Recommended for HMI applications Rotational Life Types of Output Resolution Options (PPR) Operating Temp. Range Contact Rating Detent Option Technology Features 60,000 shaft revolutions Quadrature 24 -10 °C to +65 °C 1 mA @ 5 VDC Yes Contacting Rotational Life Types of Output Resolution Options (PPR) Operating Temp. Range Contact Rating Detent Option Technology 30,000 shaft revolutions Quadrature 12, 18, 24 -30 °C to +70 °C 1 mA @ 5 VDC Yes Contacting Rotational Life Types of Output Resolution Options (PPR) Operating Temp. Range Contact Rating Detent Option Technology 60,000 shaft revolutions 4 Types of Output Quadrature 24 -10 °C to +65 °C 1 mA @ 5 VDC Yes Contacting • Compact design • Long life and high reliability • Shaftless • Detent option • RoHS compliant* • Recommended for HMI applications Features • High reliability • RoHS compliant* • Momentary push switch option • Compact, rugged design • Metal bushing/shaft • Recommended for HMI applications Features • Compact design • Long life and high reliability • Shaftless • Detent option • RoHS compliant* • Recommended for HMI applications PEC12 PEC16 PEL12 PES12 Rotational Life Types of Output Resolution Options (PPR) Operating Temp. Range Contact Rating Detent Option Technology 30,000 shaft revolutions Quadrature 12, 24 -30 °C to +70 °C 1 mA @ 5 VDC Yes Contacting Rotational Life Types of Output Resolution Options (PPR) Operating Temp. Range Contact Rating Detent Option Technology 100,000 shaft revolutions Quadrature 12, 24 -30 °C to +70 °C 1 mA @ 5 VDC Yes Contacting Rotational Life Types of Output Resolution Options (PPR) Operating Temp. Range Contact Rating Detent Option Technology 60,000 shaft revolutions Quadrature 24 -10 °C to +65 °C 1 mA @ 5 VDC Yes Contacting Rotational Life Types of Output Resolution Options (PPR) Operating Temp. Range Contact Rating Detent Option Technology 60,000 shaft revolutions Quadrature 24 -10 °C to +65 °C *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. 1 mA @ 5 VDC Yes Contacting Features • Compact design • RoHS compliant* • Long life and high reliability • Momentary push switch option • Rear and side mount versions • Recommended for HMI applications Features • Compact design • RoHS compliant* • Long life and high reliability • Momentary push switch option • Rear and side mount versions • Recommended for HMI applications Features • Compact design • Long life and high reliability • Shaftless • Detent option • RoHS compliant* • Recommended for HMI applications Features • Compact design • Long life and high reliability • Shaftless • Detent option • RoHS compliant* • Recommended for HMI applications 5 Bourns® Encoders EM14 Rotational Life Types of Output Non-detent: 1,000,000 cycles Quadrature With detents: 100,000 cycles EN Rotational Life Types of Output Resolution Options (PPR) Operating Temp. Range Contact Rating Detent Option Technology EMS22 Rotational Life 100 million shaft revolutions 6 • Compact package size • Bracket option • High rotational cycle life • RoHS compliant* • Standard and high force push switch option • Splash proof shaft seal • Recommended for HMI applications • Cable & connector option • Sealed to IP 54 8, 16, 32, 64 -40 °C to +70 °C TTL, CMOS, HCMOS Yes Optical Resolution Options (PPR) Operating Temp. Range Contact Rating Detent Option Technology Features Standard: 10 million shaft revolutions With ball bearings: 200 million shaft revolutions Features Quadrature 25, 50, 64, 100, -40 °C to +85 °C 125, 128, 200, 256 TTL, CMOS, HCMOS No Optical • Bushing or servo mount • Index channel available • High rotational cycle life • High operating speed • RoHS compliant version available* • Recommended for HMI and MMI applications Types of Output Resolution Options (PPR) Contact Rating Detent Option Technology Features Magnetic • Extremely long life • RoHS compliant* • High operating speed • Bushing or servo mount • 3.3 and 5 VDC voltage supply options • 1 or 3 index channels (quadrature output only) • Sealed to IP 65 with option of IP 67 • Recommended for HMI & MMI applications Quadrature, 32, 64, 128, 256, Absolute 512/1024 and PWM Operating Temp. Range -40 °C to +125 °C *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. TTL, CMOS No Bourns® Encoder Applications Professional and Consumer Audio Applications Popular Test and Measurement Product Applications • Studio recording equipment • Oscilloscopes • Digital mixing consoles • Logical and spectrum analyzers • Digital broadcast equipment • Signal level testers • Professional sound systems • Weather instruments • Digital amplifiers • Digital monitors • Digital car audio • Board in-circuit testers Industrial/Factory Automation Applications • Calibration equipment • Counters • Robotics • Timers • Material handling • Cycle testers • Forklift trucks • Distortion testers • Machine tools • Electrostatic testers • Automated gates/doors • Environmental chambers and testers • Fluid measurement Popular Medical Product Applications Popular Portable Electronics Product Applications • Blood / chemical analyzers • Data communication testers • Centrifuge equipment • Appliances • Blood monitors • Intercom systems • Computer Assisted Tomography (CAT) equipment • Irrigation controllers • Electrosurgical equipment • Measuring equipment • Dialysis equipment • Power generators, radio systems • Incubators • Portable monitoring equipment • Lasers • Portable test equipment • Magnetic Resonance Imaging (MRI) equipment • Portable weather stations and systems • Medical meters • Scanners • EKG, EEG, heart monitors • Copiers • Temperature and respiratory monitors • Multimeters • Insulin and infusion pumps • Radiographic equipment • Strip charts • Respirators • Ventilators Note: Bourns® Encoders are not recommended for critical life support applications. 7 Worldwide Sales Offices CountryPhone Americas: +1-951-781-5500 Brazil: +55 11 5505 0601 China: +86 21 64821250 Europe: +41 (0)41 768 5555 Japan: +81 49 269 3204 Singapore: +65 6348 7227 Taiwan: +886 2 25624117 Other Asia-Pacific Countries: +886 2 25624117 Fax +1-951-781-5006 +55 11 5505 4370 +86 21 64821249 +41 (0)41 768 5510 +81 49 269 3297 +65 6348 1272 +886 2 25624116 +886 2 25624116 Technical Assistance RegionPhone Asia-Pacific: +886 2 25624117 Europe, Middle East, Africa: +41 (0)41 768 5555 Americas: +1-951-781-5500 Fax +886 2 25624116 +41 (0)41 768 5510 +1-951-781-5700 www.bourns.com Bourns® products are available through an extensive network of manufacturer’s representatives, agents and distributors. To obtain technical applications assistance, a quotation, or to place an order, contact a Bourns representative in your area. Specifications subject to change without notice. Actual performance in specific customer applications may differ due to the influence of other variables. Customers should verify actual device performance in their specific applications. “Bourns” is a registered trademark of Bourns, Inc. in the U.S. and other countries. COPYRIGHT© 2011, BOURNS, INC. • LITHO IN U.S.A. • WAG • 11/11 • 1M/SC1180