Features ■ ■ ■ ■ ■ ■ Lead free HCMOS, CMOS and TTL compatible Compact package size High rotational cycle life Optional “soft touch” push switch Optional detent ■ ■ Splashproof shaft seal Recommended for human/machine interface applications (HMI) EM14 - 14 mm Rotary Optical Encoder w/Switch Electrical Characteristics Electrical Output ......................................................................................................................................................................................2-bit quadrature code Resolution ............................................................................................................................................................................8 to 64 pulses per revolution (PPR) Supply Voltage (VCC) ..................................................................................................................................................................................5.0 VDC ± 0.25 VDC Supply Current (ICC) ........................................................................................................................................................................................26 mA maximum Output Voltage Low (VCE(sat)), per Channel ..........................................................................................................................................800 mV maximum at I(SINK) = 25 mA High (VO(HI)), per Channel ..........................................................................................................................................4.0 VDC minimum @ VCC = 4.75 VDC Output Current I(SINK), per Channel ..................................................................................................................................................................25 mA minimum Rise/Fall Time ........................................................................................................................................................................................................200 ns typical Power Dissipation..........................................................................................................................................................................................167 mW maximum Pulse Width (per Channel) ....................................................................................................................................................................................180 °e typical Phase Angle (Channel A Leads Channel B, Clockwise Rotation) ..........................................................................................................................90 °e ± 45 °e Insulation Resistance @ 500 VDC ....................................................................................................................................................1,000 megohms minimum RPM (Operating) Non-Detent ......................................................................................................................................................................................................300 maximum With Detent ......................................................................................................................................................................................................200 maximum Switch Power Rating ............................................................................................................................................12 VDC / 20 mA (600 ohms maximum load) Switch Contact Resistance ........................................................................................................................................................................200 ohms maximum Environmental Characteristics Operating Temperature Range @ 5.0 VDC........................................................................................................................-40 °C to +70 °C (-40 °F to +158 °F) Storage Temperature Range............................................................................................................................................-55 ºC to +125 ºC (-67 °F to +257 °F) Vibration ..............................................................................................................................................................................................................................15 G Shock ..................................................................................................................................................................................................................................50 G Humidity ......................................................................................................................................................................MIL-STD-202, Method 103, Condition B Flammability ............................................................................................................................................................................................Conforms to UL 94-V0 IP Rating ............................................................................................................................................................................................................................IP 54* Mechanical Characteristics Mechanical Angle ............................................................................................................................................................................................360 ° Continuous Torque Starting/Running ................................................................................................................................................................1.06 N-cm (1.5 oz.-in.) maximum Detent ........................................................................................................................................................................................1.2 N-cm (1.7 oz.-in.) typical Rotational Life Non-detent (@ 100 RPM)........................................................................................................................................1,000,000 cycles (2,000,000 revolutions) With detent (@ 30 RPM) ..............................................................................................................................................100,000 cycles (200,000 revolutions) Switch Life ..........................................................................................................................................................................................................100,000 cycles Switch Actuation Force ........................................................................................................................................................................250 gm (8.82 oz.) typical Switch Travel ........................................................................................................................................................................................................0.04 in. typical Shaft Radial Play ..........................................................................................................................................................................................0.005 in. maximum Shaft Axial Structural Strength..........................................................................................................................................................................40 lbs. minimum Mounting Torque ..........................................................................................................................................................................2.0 N-m (18 lb.-in.) maximum Materials and Finishes Terminals ........................................................................................................................................................................................................Sn plated PC pins 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 5 seconds Wash processes ........................................................................................................................................................................................Not recommended Mounting Hardware Nut ..............................................................................................................................Black annodized brass, hex (metric)/Nickel-plated brass, hex (SAE) Lockwasher ............................................................................................................................................................Nickel-plated spring steel, internal tooth Marking ..................................................................................................Manufacturer’s symbol, model number, product code, terminal style and date code Standard Packaging ..........................................................................................................................................................Antistatic plastic tube (25 pcs./tube) *When device is mounted by normal mounting means. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. EM14 - 14 mm Rotary Optical Encoder w/Switch Part Numbering System E M 1 4 A 0 D - C 2 4 - L 0 3 2 S MODEL NO. DESIGNATOR EM14 14 mm Rotary Optical Encoder Code A C R SWITCH OPTION Code Description S Push Switch N No Switch BUSHING CONFIGURATION Description 3/8 " D x 3/8 " L Threaded 1/4 " D x 1/4 " L Threaded 10 mm D x 9.5 mm L Threaded RESOLUTION (Pulses Per Revolution) Code Description 008 8 PPR 016 16 PPR 032 32 PPR 064 64 PPR DETENT OPTION Code Description 0 No Detent 1 32 Detents (Available with 8 or 32 PPR only) TERMINAL CONFIGURATION Code Description L Axial Multi-Purpose Pin R Radial Multi-Purpose Pin ANTI-ROTATION LUG/BRACKET OPTION Code Description A A/R Lug D None SHAFT STYLE (See Outline Drawing for Details) Code B C E R M Description 1/4 " Dia. Slotted End 1/4 " Dia. Flatted End 1/8 " Dia. Slotted End 6 mm Dia. Slotted End 6 mm Dia. Flatted End Available w/ Bushing A A C R R Code 24 28 20 25 SHAFT LENGTH DESIGNATOR Length (FMS) Available w/Bushing 3/4 " A, C 7/8 " A, C 20 mm R 25 mm R Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. EM14 - 14 mm Rotary Optical Encoder w/Switch Product Dimensions MOUNTING SURFACE 14.25 (0.561) 10.03 (.395) L 3.18 TYP. (.125) "L" PIN STYLE 9.53 (.375) F 4.76 (.187) 14.76 (.581) 8.00 (.315) METAL SHAFT (SEE TABLE FOR OPTIONS) 1.19 .79 X HIGH (.047) (.031) ANTI-ROTATION BOSS (OPTIONAL) R 2.08 TYP. (.082) "R" PIN STYLE METAL BUSHING (SEE TABLE FOR OPTIONS) 1.75 TYP. (.069) "L" PIN STYLE 1.52 (.060) "R" PIN STYLE TYP. Shaft / Flat Length Dimensions "A" Style Bushing - Flatted Shafts "R" Style Bushing - Flatted Shafts 9.53 (.375) F 9.5 (.374) F BUSHING DIA. 6.35 (.250) 9.52 (.375) SHAFT LENGTH FLAT LENGTH "L" "F" 19.05 7.94 (.750) (.313) 22.22 9.52 (.875) (.375) "A" Style Bushing - Slotted Shafts SHAFT DIA. BUSHING DIA. 6.0 (.236) 10.0 (.394) 0.99 (.040) L 3/8-32 UNEF-2A BUSHING DIA. 6.35 (.250) 9.52 (.375) SHAFT LENGTH "L" 19.05 (.750) 22.22 (.875) 9.5 (.374) 1.8 (.071) 9.53 (.375) 0.99 (.040) SHAFT DIA. SHAFT LENGTH FLAT LENGTH "L" "F" 20.0 7.0 (.787) (.275) 25.0 12.0 (.984) (.472) "R" Style Bushing - Slotted Shafts L 1.8 (.071) L 6.35 (.250) 1/4-32 UNEF-2A M10 x 0.75-6 g 3/8-32 UNEF-2A SHAFT DIA. 1.52 (.060) 0.79 (.031) 4.42 (.174) 4.76 (.187) "C" Style Bushing - Slotted Shafts L L M10 x 0.75-6 g SHAFT DIA. BUSHING DIA. 6.0 (.236) 10.0 (.394) Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications. SHAFT LENGTH "L" 20.0 (.787) 25.0 (.984) SHAFT DIA. BUSHING DIA. 6.35 (.250) 9.52 (.375) SHAFT LENGTH "L" 19.05 (.750) 22.22 (.875) EM14 - 14 mm Rotary Optical Encoder w/Switch Quadrature Output Electrical Block Diagram CW – 90 °e ± 45 °e Ground High CHANNEL A A Channel A CHANNEL B IRED 1 Low High Low 180 °e 1 pulse width Switch Terminal 10k Opto ASIC 32 DETENT / 8 PPR 10k 2 Switch Terminal + Power B Channel B CW CHANNEL A CHANNEL B 32 DETENT / 32 PPR CW Terminal Diagram CHANNEL A CHANNEL B CHANNEL "A" CHANNEL "B" GROUND A12 +B TYP. 1.27 (.050) POWER MOMENTARY SWITCH Sensors & Controls Division Asia-Pacific: TEL +886-2 25624117 FAX +886-2 25624116 Europe: TEL +41-41 7685555 FAX +41-41 7685510 The Americas: TEL +1-951 781-5500 FAX +1-951 781-5700 www.bourns.com 09/04 Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications.