oH VE S CO AV R M AI SIO PL LA N IA BL S NT E
Features
■ Incremental encoder / quadrature output ■ Exceptionally long operating life ■ Sturdy construction ■ Bushing mount ■ Available with PC board mounting bracket (optional)
*R
ECW - Digital Contacting Encoder
Electrical Characteristics
Output .......................................................................................... 2-bit gray code, Channel A leads Channel B by 90 º electrically turning clockwise (CW) Closed Circuit Resistance .......................................................................................................................................................................... 5 ohms maximum Open Circuit Resistance.......................................................................................................................................................................100 K 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 Phase Tolerance (CH A to CH B) ............................................................................................................................................................................90 ° ± 72 °
Environmental Characteristics
Operating Temperature Range .........................................................................................................................................-40 ºC to +85 ºC (-40 °F to 185 °F) Storage Temperature Range ......................................................................................................................................... -40 ºC to +85 ºC (-40 °F to +185 °F) Humidity ............................................................................................................................................................... MIL-STD-202, Method 103B, Condition B Vibration .......................................................................................................................................................................................................................... 15 G Contact Bounce..........................................................................................................................................................................0.1 millisecond maximum Shock .............................................................................................................................................................................................................................. 50 G Contact Bounce..........................................................................................................................................................................0.1 millisecond maximum Rotational Life ................................................................................................................................................................................ 200,000 shaft revolutions IP Rating ..........................................................................................................................................................................................................................IP 40
Mechanical Characteristics
Mechanical Angle ................................................................................................................................................................................................. Continuous Running Torque (Detented) .............................................................................................................................................0.5 to 1.5 N-cm (0.75 to 2.25 oz-in.) Undetented Torque ........................................................................................................................................................0.17 to 1.0 N-cm (0.25 to 1.50 oz-in) Mounting Torque ....................................................................................................................................................................... 79 N-cm (7 lb.-in.) maximum Shaft Side Load (Static)................................................................................................................................................................... 4.5 kg (10 lbs.) minimum Weight ................................................................................................................................................................................ Approximately 21 gms. (0.75 oz.) Terminals .................................................................................................................................................................................................PC pin or solder lug 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 Marking..........................................................................................................................Manufacturer’s name and trademark, part number, and date code. Hardware ............................................... One lockwasher and one mounting nut are shipped with each encoder, except where noted in the part number.
Quadrature Output Table – This table is intended to show available outputs as currently defined.
1/4 CYCLE PER DETENT CW
Closed Circuit Open Circuit Closed Circuit Open Circuit DDDDDDDDDDDDDDDDD
Channel A
FULL CYCLE PER DETENT (Normally Open in Detent Shown) CW Channel A
Closed Circuit Open Circuit Closed Circuit Open Circuit D D D D D
Channel B
Channel B
RECOMMENDED INCREMENTAL CONTROL DIAGRAM FOR USE WITH A DEBOUNCE CIRCUIT
.0015 f 7 9 DIRECTION 5 ms DELAY DEBOUNCE (MC 14490) DECODE LOGIC MAGNITUDE UP/DOWN COUNTER BINARY OUTPUT (CUSTOMER LOGIC CIRCUITRY)
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex. Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications
ECW - Digital Contacting Encoder
Dimensional Drawings
BUSHING MOUNTED - HOUSING A Rear-Facing Terminals
8.51 (.335) “L” ± 0.38 (“L” ± .015) 9.52 (.375) 11.1 (.437) 14.7 ± 0.5 DIA. 9.0 (.578 ± .020) DIA. (.354) M9 X 0.75-6g SPL
CHANNEL A
PANEL HOLE DIMENSIONS Bushing Mounted
22.2 ± 0.25 (.874 ± .010) 27.68 ± 0.25 (1.090 ± .010) 28.49 ± 0.25 (1.122 ± .010)
CHANNEL B
9.52 (.375) 3.17 DIA. (.125)
9.14 DIA. (.360)
5.69 ± 0.25 (.224 ± .010)
1.52 (.060)
ACB
COMMON
PCB BRACKET MOUNTED - HOUSING B Dimensions not given are the same as Bushing Mounted.
5.74 (.226) .762 (.030) 4 PLCS. ACB 6.35 ± 0.25 (.250 ± .010)
CHANNEL A COMMON CHANNEL B
PCB MOUNTING DIMENSIONS (Housing Styles B and E)
C L
SOLDER HOLES - HOUSING C Dimensions not given are the same as Bushing Mounted.
9.02 (.355)
23.37 ± 0.25 (.920 ± .010) 15.2 (.600) 23.6 (.930)
17.069 (.672)
11.4 (.450) 2.54 TYP. (.100) 1.2 DIA. 7 PLCS. (.047) 1.57 (.062) 2.54 (.100) 5.08 (.200)
A C B
26.975 (1.062) 14.478 (.570) .107 DIA. (.042) 3 PLCS.
SNAP-IN MOUNT - Housing G
13.08 (.515) “L” ± 0.38 (“L” ± .015) 8.51 (.335) 6.35 (.250) 22.20 ± 0.25 (.874 ± .010)
PCB MOUNTING DIMENSIONS
22.68 (.893) 9.53 (.375) 14.68 ± 5.08 DIA. (0.578 ± 0.20) 11.33 (.446)
7.24 ± 0.25 (.285 ± .010)
1.52 (.060)
8.99 (.354) DIA.
CHANNEL A COMMON
11.10 (.437)
27.69 ± 0.25 (1.090 ± .010) 28.50 ± 0.25 (1.122 ± .010) 3X
.635 (.025) 5.08 (.200)
.97 8X R (.038) 2.54 (.100) 2X 2.54 (.100) 10.90 (.429) 12.24 (.482)
21.11 (.831)
CHANNEL B
19.76 (.778)
1.07 3X (0.042)
Shaft Style B
6.32 + 0.03/– 0.06 DIA. (.249 + .001/– .003)
Shaft Style C
5.54 ± .076 (.218 ± .003)
Shaft Style J
4.01 + .051/ – .025 (.158 + .002/ – .001)
Shaft Style R
4.75 ± .006/-.051 DIA. (.187 + .003/-.002) 6.00 (.236) DIA. 1.19 (.047)
Shaft Style Y
1.57 (.062) 4.7 DIA. (.185)
1.6 (.063)
1.19 (.047)
"D"
6.32 + 0.03/– 0.06 DIA. (.249 + .001/– .003)
"D"
"D" DIMENSION EXTENDS FROM SHAFT END TO BUSHING FACE "D" = (SHAFT LENGTH, FMS) – (BUSHING LENGTH)
1.6 (.063)
9.65 FOR SHAFTS (.380) 14.7 < 1 " LENGTH FOR SHAFTS ≥ 1 " LENGTH (.578)
SLOT DEPTH ("Y" SHAFT)
BUSHING MOUNTED - HOUSING H Front-Facing Terminals
9.01 ±.020 (.355 ±.008) 1.19 (.047) 14.9 ±.050 DIA. (.587 ±.020) .635 3 PLCS. (.025)
23.87 (.940) 22.2 ±.025 (.874 ±.010) 4.01 +.050/-.025 (.158 +.002/-.001)
15.87 ±.038 (.625 ±.015) 6.35 (.250) 8.50 ±.025 (.335 ±.010)
.25 (.010) MM (IN) 3.17 DIA. (.125) 9.52 (.375)
.13 (.005)
1.52 (.060)
11.09 (.437)
9.93 DIA. (.391)
2.54 2 PLCS. (.100)
3/8–32 UNEF 2A 2.79 (.110) 4.75 +.076/-.050 DIA. (.187 +.003/-.002) 17.4 ±.025 (.685 ±.010) 1.57 (.062) 3.55 (.140) 1.19 DIA. (.047) 4 PLCS.
CHANNEL A
16.0 2.54 (.100) (.630) 2 PLCS.
CHANNEL B COMMON
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications
ECW - Digital Contacting Encoder
How to Order
PART NUMBERING SYSTEM
ECW1 J
-
B24
-BC0024L
RoHS IDENTIFIER Code Description L Compliant Blank Non-Compliant
Code Rotational Life C 200,000 Revolutions
BUSHING CONFIGURATION Code Description W 9 mm x 1/4 " Length. Threaded M9x0.75 L 9 mm x 3/8 " Length. Threaded M9x0.75 (Use B shaft only.) T 9 mm x 1/4 ". No Thread.
PERFORMANCE CODE Code Detents Cycles/Rev. E0006 0 6 E0009 0 9 E0012 0 12 E0024 0 24 E0036 0 36 B0012 12 12 C0006 6 24 C0024 24 D0009 36 9 HOUSING TERMINAL CONFIGURATION (X indicates “Equipped With” Code A B C D E F G* H K Features XX X X Terminal Cover XX X X Rear-Facing Terminals XX X Solder Holes X XXX PCB Bracket X X XX X Hardware Included X Snap-In Mount XX Forward-Facing Terminals
*Bushing code T only.
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
ANTI-ROTATION LUG POSITION Code Description J 9:00 Position D None
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 (6 mm Dia.) Y Split Shaft Version (.185 " Dia.) J Flatted Shaft (3/16 " Dia.)
SHAFT LENGTH (FMS) Code 16 20 24 28 32 36 19 22 24 Available Description Shaft Styles 1/2 " Length B 5/8 " (15.9 mm) Length J 3/4 " (19 mm) Length B, C, J, Y 7/8 " (22.2 mm) Length B, C, J, Y 1 " (25.4 mm) Length B, C, J, Y 1-1/8 " (28.6 mm) Length B, C, J, Y Metric 19 mm Length R 22 mm Length R 24 mm Length R REV. 09/09
Specifications are subject to change without notice. Customers should verify actual device performance in their specific applications
The sample part number demonstrates the identification code for Bourns contacting encoders. Boldface features are Bourns standard options. All others are available with higher minimum order quantities.
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