ECW1J-B24-BC0024

Features ■ ■ ■ ■ ■ Incremental encoder / quadrature output Exceptionally long operating life High operating temperature capabilities up to 125°C Sturdy construction Bushing mount ■ Available with PC board mounting bracket (optional) ECW - Digital Contacting Encoder Electrical Characteristics Output .................................................................2-bit gray code, Channel A leads Channel B by 90º electrically turning clockwise (CW) Closed Circuit Resistance ................................................................................................................................................5 ohms maximum Open Circuit Resistance .............................................................................................................................................100K ohms minimum Contact Rating .......................................................................................................................10 milliamp @ 10 VDC or 0.1 watt maximum Insulation Resistance (500 VDC) .........................................................................................................................1,000 megohms minimum Dielectric Withstanding Voltage ..........................................................................................................................MIL-STD-202 Method 301 Sea Level ...................................................................................................................................................................1,000 VAC minimum Electrical Travel...........................................................................................................................................................................Continuous Contact Bounce (15 RPM) ....................................................................................................................................5 milliseconds maximum RPM (Operating).....................................................................................................................................................................120 maximum Environmental Characteristics Storage Temperature Range ..............................................................................................................................................-40ºC to +140ºC Operating Temperature Range ............................................................................................................................................+1ºC to +125ºC Humidity .....................................................................................................................................MIL-STD-202, Method 103B, Condition B Vibration .................................................................................................................................................................................................15G Contact Bounce.................................................................................................................................................0.1 millisecond maximum Shock .....................................................................................................................................................................................................50G Contact Bounce.................................................................................................................................................0.1 millisecond maximum Rotational Life .....................................................................................................................................................200,000 shaft revolutions* Mechanical Characteristics Mechanical Angle .......................................................................................................................................................................Continuous Weight ......................................................................................................................................................................Approximately 0.75 oz. Torque (Detented) ............................................................................................................................................................0.75 to 2.25 oz-in. Mounting Torque .............................................................................................................................................................7 in-lbs. maximum Shaft Side Load (Static)......................................................................................................................................................10 lbs. minimum *Applies to EC Option. QUADRATURE OUTPUT TABLE This table is intended to show available outputs as currently defined. 1/4 CYCLE PER DETENT CW FULL CYCLE PER DETENT (Normally Open in Detent Shown) CW Channel A Channel A Closed Circuit Closed Circuit Open Circuit Open Circuit Closed Circuit Closed Circuit Open Circuit Open Circuit D D D D D D D D D D D D D D D D D D D Channel B RECOMMENDED INCREMENTAL CONTROL DIAGRAM D D Channel B .0015µf 7 (CUSTOMER LOGIC CIRCUITRY) 9 DIRECTION 5ms DELAY DEBOUNCE (MC 14490) DECODE LOGIC UP/DOWN COUNTER MAGNITUDE Specifications are subject to change without notice. BINARY OUTPUT D DIGITAL CONTACTING The Digital Contacting Encoder is commonly referred to by such names as Digital Panel Control, Bit Switch, Gray Switch and Digital Switch. All such names are synonymous with a device whose output is a digital gray code signal, rather than a conventional potentiometric voltage ratio output. conversion. The two (2) channel gray coded signal of this incremental encoder allows the user’s decoder circuit to sense analog direction of rotation, as well as up-down counter capabilities . . . all without the time and cost required for A/D conversion. This approach can reduce memory overhead, wiring and wiring interconnects, and can provide greater MPU program speed. The advantage of the Digital Contacting Encoder is that it permits the direct entry of digitized analog data into a digital circuit without A/D ECW - Digital Contacting Encoder 22.2 ± 0.25 (.874 ± .010) BUSHING MOUNTED - HOUSING A W style bushing shown. "L" 8.51 (.335) 8.1 (.320) 14.7 ± 0.5 DIA. (.578 ± .020) 6.35 (.250) Shaft lengths "L" for B, C, R and Y styles 24 = .750" (19mm) 36 = 1.125" (28.5mm) 28.5 ± 0.25 (1.122 ± .010) 9.0 DIA. (.354) M9 X 0.75-6g SPL 27.69 ± 0.25 (1.090 ± .01) A C B 1.52 (.060) 6.35 ± 0.25 (.250 ± .010) "L" Dim. = 1.125 or .750 PCB BRACKET MOUNTED - HOUSING B Dimensions not given are the same as Bushing Mounted. 5.74 ± 0.25 (.226 ± .010) 11.1 (.437) SOLDER HOLES - HOUSING C Dimensions not given are the same as Bushing Mounted. 23.37 (.92) 9.02 (.355) .76 (.030) 4 PLCS. 17.07 (.672) A .036 DIA. 3 PLCS. 1.47 (.058) A C B SNAP-IN MOUNT - Housing G 13.08 (.515) 22.2 ± 0.25 (.874 ± .010) 8.51 (.335) 6.35 (.250) 9.53 (.375) 11.1 (.437) 29.18 ± 0.25 (1.149 ± .010) Shaft Style J 5.54 ± .076 (.218 ± .003) 3.94 + .051/ – .025 (.155 + .002/ – .001) 2.54 5.08 (.100) (.200) "D" 2X 2.54 (.100) Shaft Style R 4.75 ± .076 DIA. (.187 ± .003) 6.32 + 0.03/– 0.07 "D" DIA. (.249 + .001/– .003) "D" DIMENSION EXTENDS FROM SHAFT END TO BUSHING FACE "D" = (SHAFT LENGTH, FMS) – (BUSHING LENGTH) PANEL HOLE DIMENSIONS Bushing Mounted 1.19 (.047) 1.6 (.063) 3.17 DIA. (.125) 9.1 DIA. (.360) 1.07 3X (0.042) 10.90 (.429) 12.24 (.482) 19.76 (.778) Shaft Style Y 6.00 (.236) DIA. 1.57 (.062) 4.7 DIA. (.185) 9.65 FOR SHAFTS (3.80) 14.7 < 1" LENGTH FOR SHAFTS ≥ 1" LENGTH (5.20) SLOT DEPTH ("Y" SHAFT) PCB MOUNTING DIMENSIONS (Housing Styles B and E) CL 9.5 (.375) 21.11 (.831) .97 8X R (.038) .635 (.025) 3PLCS. DIA. Shaft Style C 1.19 (.047) 5.08 (.200) 22.68 11.33 (.893) (.446) 14.7 ± 0.5 DIA. (.578 ± .020) 1.52 (.060) 6.32 + 0.03/– 0.07 DIA. (.249 + .001/– .003) 1.6 (.063) 2.54 (.100) 28.5 ± 0.25 (1.122 ± .010) 8.99 DIA. (.354) Shaft Style B B PCB MOUNTING DIMENSIONS "L" 7.23 ± 0.25 (.285 ± .010) 16.0 (0.630) C 15.2 (.600) 23.6 (.930) 11.4 (.450) 2.54 TYP. (.100) 1.2 DIA. 7 PLCS. (.047) FOR TOLERANCES NOT SHOWN .XX = ±.010 .XXX = ± .005 SHAFT DIMENSIONS ± 1/32" A C B DIMENSIONS ARE: METRIC (INCHES) CHANNEL A CHANNEL B COMMON Specifications are subject to change without notice. ECW - Digital Contacting Encoder - How To Order PART NUMBERING SYSTEM E C W 1 J - B 2 4 - B C 0 0 2 4 PERFORMANCE CODE Code Detents Cycles/Rev. E0006 6 E0009 9 E0012 0 12 E0024 24 B0012 12 12 C0006 6 24 C0024 24 36 D0009 9 Code Rotational Life C 200,000 Revolutions BUSHING CONFIGURATION Code Description W 9mm x 1/4" Length. Threaded M9x0.75 L 9mm x 3/8" Length. Threaded M9x0.75 (Use B shaft only.) T 9mm x 1/4". No Thread. SWITCHING CONFIGURATION (In Detent Position) Applies to performance codes B0012 and C0024 only, use code "0" for all other performance codes. Code Description 0 Not Applicable 1 Normally Open 2 Normally Closed HOUSING TERMINAL CONFIGURATION (X indicates "Equipped With" Code Features A B C D E F G* Terminal Cover X X X X Terminals X X X X Solder Holes X X X PCB Bracket X X X X Hardware Included X X X X Snap-In Mount X ANTI-ROTATION LUG POSITION Code Description J 9:00 Position D None *Bushing code T only. SHAFT LENGTH (FMS) SHAFT STYLE (See Outline Drawing for Details) Code Description B Plain with Inserted Slot (1/4" Dia.) C Single Flatted (1/4" Dia.) R Plain with Inserted Slot (6mm Dia.) Y Split Shaft Version (.185" Dia.) J Flatted Shaft (3/16" Dia.) The sample part number demonstrates the identification code for Bourns contacting encoders. The part number shown is a commonly used model, typically available from stock. Specifications are subject to change without notice. Code 16 20 24 28 32 36 19 22 24 Available Description Shaft Styles 1/2" Length B 5/8" (15.9mm) Length J 3/4" (19mm) Length B, C, J, Y 7/8" (22.2mm) Length B, C, J, Y 1" (25.4mm) Length B, C, J, Y 1-1/8" (28.6mm) Length B, C, J, Y Metric 19mm Length R 22mm Length R 24mm Length R