ENA1P-B16-L00128L [BOURNS]
EN - Rotary Optical Encoder; EN - 旋转式光学编码器
| 型号： | ENA1P-B16-L00128L |
| 厂家： | 
BOURNS ELECTRONIC SOLUTIONS |
| 描述： | EN - Rotary Optical Encoder |
| 文件： | 总3页 (文件大小：289K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Features
■ Two channel quadrature output
■ Bushing or servo mount
■ Square wave signal
■ Index channel available
■ Small size
■ CMOS and TTL compatible
■ Long life
■ High operating speed
■ Resolution to 256 PPR
EN - Rotary Optical Encoder
Electrical Characteristics
Output ..............................................................................................2-bit gray code, Channel A leads Channel B by 90 º (electrical) with clockwise rotation
Resolution..................................................................................................................................................................................25 to 256 cycles per revolution
Insulation Resistance (500 VDC) ......................................................................................................................................................................1,000 megohms
Electrical Travel ........................................................................................................................................................................................................Continuous
Supply Voltage ..........................................................................................................................................................................................5.0 VDC 0.25 VDCꢀ
Supply Current ................................................................................................................................................................................................26 mA maximum
Output Voltage
Low Output ....................................................................................................................................................................................................0.8 V maximum
High Output........................................................................................................................................................................................................4 V minimum
Output Current
Low Output ..................................................................................................................................................................................................25 mA minimum
Rise/Fall Time......................................................................................................................................................................................................200 ns (typical)
Shaft RPM (Ball Bearing)............................................................................................................................................................................3,000 rpm maximum
Power Consumption......................................................................................................................................................................................136 mW maximum
Pulse Width (Electrical Degrees, Each Channel) ..............................................................................................................................................180 º 45 º TꢁP.
Pulse Width (Index Channel) ....................................................................................................................................................................................360 º 90 º
Phase (Electrical Degrees, Channel A to Channel B)..........................................................................................................................................90 º 45 º TꢁP.
Index Channel Centered on 1-1 State Combination of A and B Channels ..................................................................................................................0 º 45 º
ꢀConsult factory for other voltages up to 5 VDC.
Environmental Characteristics
Operating Temperature Range ..........................................................................................................................................-40 ºC to +75 ºC (-40 °F to +167 °F)
Storage Temperature Range ............................................................................................................................................-40 °C to +85 °C (-40 °F to +185 °F)
Humidity....................................................................................................................................................................MIL-STD-202, Method 103B, Condition B
Vibration ................................................................................................................................................................................................................................5 G
Shock ..................................................................................................................................................................................................................................50 G
Rotational Life
A & C Bushings (300 rpm maximum)ꢀꢀ ..............................................................................................................................................10,000,000 revolutions
W, S & T Bushings (3,000 rpm maximum)ꢀꢀ ....................................................................................................................................200,000,000 revolutions
IP Rating..............................................................................................................................................................................................................................IP 40
Mechanical Characteristics
Mechanical Angle ............................................................................................................................................................................................360 ° Continuous
Torque (Starting and Running)
A & C Bushings (Spring Loaded for Optimum Feel) ................................................................................................................1 N-cm (1.5 oz-in.) maximum
W, S & T Bushings (Ball Bearing Shaft Support) ................................................................................................................0.07 N-cm (0.1 oz-in.) maximum
Mounting Torque ....................................................................................................................................................1.7 to 2.0 N-cm (15 to 18 lb.-in.) maximum
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 or radial pc pins 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 5 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.
ꢀꢀFor resolutions ≤ 128 quadrature cycles per shaft revolution.
Quadrature Output Table
OUTPUT VOLTAGE
STANDARD RESOLUTIONS AVAILABLE
4.0 V (Min)
0.8 V (Max)
4.0 V (Min)
0.8 V (Max)
4.0 V (Min)
0.8 V (Max)
1
0
1
0
1
0
Channel A
Channel B
(Full quadrature output cycles per shaft revolution)
25ꢀ
50ꢀ
64
125
128
200
256
100
Index
Channel
1 cycle
360 ° ± 90 °
(Optional)
For Non-Standard Resolutions—Consult Factory
ꢀ Channel B leads Channel A
Clockwise rotation
*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.
GENERAL INFORMATION
The Bourns® EN model is a self-contained rotary optical encoder. It
produces a 2-bit quadrature signal which is suitable for digital systems
where both magnitude and direction of adjustment must be provided.
The EN encoder is ideal for use as a digital panel control or as a position
sensing device in applications where long life, reliability, high resolution
and precise linearity are critical.
Bourns encoder output signals are square wave digital pulses which do
not require debounce circuitry. Both features make it possible to
significantly reduce the memory overhead, wiring and wiring
interconnects required by other types of control devices.
EN optical encoders offer a useful rotational life of from 10 million to
200 million shaft revolutions, making them ideal for extended service
applications. The Bourns encoder is also compact and well suited for
situations where the available space is limited.
The EN series encoder converts rotary input into electrical signals
which can be used by microprocessors without A/D conversion.
EN - Rotary Optical Encoder
Dimensional Drawings
Consult factory for options not shown,
including:
Optional
18.5
(.73)
15.88
(.625)
Radial Leads
2.54
(.100)
TYP.
6.35
(.250)
.635
(.025)
SQ.
•
•
•
•
Wire lead or cable options
Connectors
Non-standard resolutions
Special shaft/bushing sizes and
features
2.36
(.093)
21.21
(.835)
9.525
(.375)
1/4-32 UNEF
•
•
Special performance characteristics
PCB mounting bracket
8.636
(.34 )
9.53
(.375)
3.167 + .000/ – .0076
(.1247 + .000/ – .0003)
1.37
(.054)
DIA.
Bushing Style C
7.14 + .000/ – .0508
(.281 + .000/ – .002)
10.32 + .000/ – .0508
(.4062 + .000/ – .002)
9.53
DIA.
6.342 + .000/ – .0076
(.2497 + .000/ – .0003)
6.34
(.2497)
5.54
(.218)
SHAFT FLAT
LENGTH
DIA.
DIA.
SHAFT
LENGTH
9.53
(.375)
.254 ± .076
(.010 .003)
(DIM. F)
R.
3/8-32 UNEF
(.375)
F
12.7
2.54
(.050)
(.100)
15.9
5.08
(.625)
(.200)
9.53
(.375)
1.57
1/4-32 UNEF
19.1
(.750)
8.25
(.325)
3/8-32 UNEF
1.57
(.062)
(.062)
6.342 + .000/ – .0076
(.2497 + .000/ – .0003)
.787 ± .254
(.031 ± .010)
3.167 + .000/ – .0076
DIA.
DIA.
(.1247 + .000/ – .003)
Anti-rotation Lug
View
Bushing Style S
(Ball Bearing)
Bushing Style A
Shaft End Style C
Bushing Style T
(Ball Bearing)
2.54
(.100)
1.57
(.062)
4 PLCS.
1.57
(.062)
11.13
(.438)
TERMINATION DIAGRAM
4.14
(.163)
1.57
(.062)
21.8
(.86)
3.167 + .000/ – .0076
(.1247 + .000/ – .003)
INDEX
DIA.
OR
N.C.
CHANNEL A
GROUND
Vcc CHANNEL B
18.11
(.713)
Optional
Radial Leads
0.99
-
+
9 PLCS.
DIA. MIN.
A
B
(.039)
2 PLCS.
19.05 ± .0127
(.7500 ± .0005)
22.2 + .0127 / – .1270
(.875 + .0005 / – .0050)
6.99
(.275)
DIA.
DIA.
Recommended Board Layout
with Bracket
Servo Mount Style W (Ball Bearing)
Ribbon Cable Option Detail
Side Exit
Bushing with Bracket
Connector
Pinout
Connector
Pinout
5
4
3
2
1
5
4
3
2
1
—
A + B
Ribbon Cable Option
Rear Exit
Ribbon Cable Option
Side Exit
MM
(IN.)
DIMENSIONS:
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
EN - Rotary Optical Encoder
How To Order
BOURNS EN SERIES OPTICAL ENCODER
E N C 1 J - B 2 8 - L 0 0 1 2 8 L
ANTI-ROTATION
LUG POSITION
SHAFT LENGTH*
Code Description
TERMINALS
Code Description
Code Description
16
20
28
1/2 " Long
5/8 " Long
7/8 " Long
L
RoHS Compliant
D
J
None
Blank Standard
9:00 Position
Rear Mount-
ing Bracket
P
TERMINAL***
RESOLUTION
CONFIGURATION
Cycles Per
Code Description
SWITCHING
CONFIGURATION
Code Description
Code Revolution
L
R
Axial, Multi-
Purpose Pin
Radial, Multi-
Purpose Pin
Axial, Ribbon
& Connector
10 “
00025
00050
00064
00100
00125
00128
00200
00256
25
50
64
100
125
128
200
256
Channel A
Leads
Channel B
By 90 °
(Clockwise
Rotation)**
Code 1
Switching
With Index
Channel
1
2
M
N
W
Y
Radial, Ribbon
& Connector
10 ”
Axial, Ribbon
10 “ -
No Connector
Radial, Ribbon
10 ” -
No Connector
SHAFT STYLE
Use With
Code Description
Bushings (Code)
B
D
C
1/4 " Dia., Plain End
1/8 " Dia., Plain End
1/4 " Dia., Single
Flatted
A, S
C, T, W
A, S
BUSHING CONFIGURATION
Code Description
A
C
S
3/8 "D X 3/8 "L Threaded
1/4 "D X 1/4 "L Threaded
3/8 "D X 3/8 "L Threaded
(Ball Bearing)
T
1/4 "D X 3/8 "L Threaded
(Ball Bearing)
W
Servo Mount 7/8 "D
(Ball Bearing)
* Shaft length measured from mounting surface.
** 25 and 50 ppr is reversed (Channel B leads Channel A)
*** Standard ribbon cable is 10 " long
Consult factory for other lengths.
REV. 06/23/06
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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