CSM_E6A2-C_DS_E_5_1
1
Incremental 25-mm-dia. Rotary Encoder
E6A2-C
Compact Encoder with External
Diameter of 25 mm
• Incremental model
• External diameter of 25 mm.
• Resolution of up to 500 ppr.
Be sure to read Safety Precautions on
page 3.
Ordering Information
Encoders [Refer to Dimensions on page 4.]
Accessories (Order Separately) [Refer to Dimensions on Rotary Encoder Accessories.]
Refer to Accessories for details.
Power supply voltage Output configuration Output phases Resolution (pulses/rotation) Model
5 to 12 VDC
Voltage output
Phases A, B, and Z
100, 200, 360 E6A2-CWZ3E (resolution) 0.5M
Example: E6A2-CWZ3E 100P/R 0.5M
500
Open-collector output
(NPN output)
100, 200, 360 E6A2-CWZ3C (resolution) 0.5M
Example: E6A2-CWZ3C 100P/R 0.5M
500
12 to 24 VDC 100, 200, 360 E6A2-CWZ5C (resolution) 0.5M
Example: E6A2-CWZ5C 100P/R 0.5M
500
5 to 12 VDC
Voltage output
Phases A and B
100, 200, 360 E6A2-CW3E (resolution) 0.5M
Example: E6A2-CW3E 100P/R 0.5M
500
Open-collector output
(NPN output)
100, 200, 360 E6A2-CW3C (resolution) 0.5M
Example: E6A2-CW3C 100P/R 0.5M
500
12 to 24 VDC 100, 200, 360 E6A2-CW5C (resolution) 0.5M
Example: E6A2-CW5C 100P/R 0.5M
500
5 to 12 VDC
Voltage output
Phase A
10, 20, 60, 100, 200, 300, 360 E6A2-CS3E (resolution) 0.5M
Example: E6A2-CS3E 10P/R 0.5M
500
Open-collector output
(NPN output)
10, 20, 60, 100, 200, 300, 360 E6A2-CS3C (resolution) 0.5M
Example: E6A2-CS3C 10P/R 0.5M
500
12 to 24 VDC 10, 20, 60, 100, 200, 300, 360 E6A2-CS5C (resolution) 0.5M
Example: E6A2-CS5C 10P/R 0.5M
500
Name Model Remarks
Coupling E69-C04B Provided with the product.
Servo Mounting Bracket E69-1 Provided with the E6A2-CWZ@.
E6A2-C
2
Ratings and Specifications
*1. An inrush current of approximately 9 A will flow for approximately 0.3 ms when the power is turned ON.
*2. The maximum electrical response speed is determined by the resolution and maximum response frequency as follows:
This means that the E6A2-C Rotary Encoder will not operate electrically if its speed exceeds the maximum electrical response speed.
*3. No protection is provided against water or oil.
Item
Model E6A2-
CWZ3E
E6A2-
CWZ3C
E6A2-
CWZ5C E6A2-CW3E E6A2-CW3C E6A2-CW5C E6A2-CS3E E6A2-CS3C E6A2-CS5C
Power supply
voltage
5 VDC −5% to 12 V +10%
ripple (p-p): 5% max.
12 VDC
−10% to
24 VDC
+15%, ripple
(p-p): 5%
max.
5 VDC −5% to 12 V +10%,
ripple (p-p): 5% max.
12 VDC
−10% to
24 VDC
+15%, ripple
(p-p): 5%
max.
5 VDC −5% to 12 V +10%,
ripple (p-p): 5% max.
12 VDC
−10% to
24 VDC
+15%, ripple
(p-p): 5%
max.
Current
consumption*150 mA max. 30 mA max. 30 mA max. 20 mA max. 30 mA max. 20 mA max.
Resolution (pulses/
rotation) 100, 200, 360, 500 10, 20, 60, 100, 200, 300, 360, 500
Output phases Phases A, B, and Z Phases A and B Phase A
Output configuration Voltage out-
put NPN open-collector output Voltage out-
put NPN open-collector output Voltage out-
put NPN open-collector output
Output capacity
Output resis-
tance: 2 kΩ
Output cur-
rent: 20 mA
max.
Residual volt-
age: 0.4 V
max.
(Output cur-
rent: 20 mA
max.)
Applied voltage: 30 VDC
max.
Sink current: 30 mA max.
Residual voltage: 0.4 V max.
(at sink current of 30 mA)
Output resis-
tance: 2 kΩ
Output cur-
rent: 20 mA
max.
Residual volt-
age: 0.4 V
max.
(Output cur-
rent: 20 mA
max.)
Applied voltage: 30 VDC
max.
Sink current: 30 mA max.
Residual voltage: 0.4 V max.
(at sink current of 30 mA)
Output resis-
tance: 2 kΩ
Output cur-
rent: 20 mA
max.
Residual volt-
age: 0.4 V
max.
(Output cur-
rent: 20 mA
max.)
Applied voltage: 30 VDC
max.
Sink current: 30 mA max.
Residual voltage: 0.4 V max.
(at sink current of 30 mA)
Maximum response
frequency*230 kHz
Phase difference
between outputs Phase difference between phases A and B: 90°±45°---
Output duty factor --- 50±25%
Rise and fall times of
output
1.0 μs max.
(Cable
length:
500 mm,
Sink current:
10 mA)
1.0 μs max. (Cable length:
500 mm, Control output volt-
age: 5 V, Load resistance:
1kΩ)
1.0 μs max.
(Cable
length:
500 mm,
Sink current:
10 mA)
1.0 μs max. (Cable length:
500 mm, Control output volt-
age: 5 V, Load resistance:
1kΩ)
1.0 μs max.
(Cable
length:
500 mm,
Sink current:
10 mA)
1.0 μs max. (Cable length:
500 mm, Control output volt-
age: 5 V, Load resistance:
1kΩ)
Starting torque 1 mN·m max.
Moment of inertia 1 × 10−7 kg·m2 max.
Shaft
loading
Radial 10 N
Thrust 50 N
Maximum
permissible speed 5,000 r/min
Ambient temperature
range Operating: −10 to 55°C (with no icing), Storage: −25 to 80°C (with no icing)
Ambient humidity
range Operating/storage: 35% to 85% (with no condensation)
Insulation resistance 20 MΩ min. (at 500 VDC) between current-carrying parts and case
Dielectric strength 500 VAC, 50/60 Hz for 1 min between current-carrying parts and case
Vibration resistance Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance Destruction: 500m/s2 3 times each in X, Y, and Z directions
Degree of
protection*3IEC 60529 IP50
Connection method Pre-wired Models (Standard cable length: 500 mm)
Material Case: Aluminum alloy, Main unit: Aluminum, Shaft: SUS420J2, Mounting Bracket: Galvanized iron
Weight
(packed state) Approx. 35 g
Accessories Coupling, Servo Mounting Bracket (provided with the E6A2-CWZ@), Hexagonal wrench, Instruction manual
Maximum electrical response speed (rpm) = Maximum response frequency
Resolution × 60
E6A2-C
3
I/O Circuit Diagrams
Safety Precautions
Refer to Warranty and Limitations of Liability.
This product is not designed or rated for ensuring
safety of persons either directly or indirectly.
Do not use it for such purposes.
Do not use the Encoder under ambient conditions that exceed the
ratings.
● Wiring
Spurious pulses may be generated when power is turned ON and
OFF. Wait at least 0.1 s after turning ON the power to the Encoder
before using the connected device, and stop using the connected
device at least 0.1 s before turning OFF the power to the Encoder.
Also, turn ON the power to the load only after turning ON the power
to the Encoder.
Model Output circuits Output mode Connection
E6A2-CS3C
E6A2-CS5C
E6A2-CW3C
E6A2-CW5C
E6A2-CWZ3C
E6A2-CWZ5C
E6A2-CW3E
E6A2-CWZ3E
E6A2-CS3E
Note: 1. *(H) and (L) indicate the output
levels of Voltage Output
Models.
2. Output A leads B by 1/4 T±1/8 T
when the shaft revolves
clockwise, while A lags behind
B by 1/4 T±1/8 T when the shaft
revolves counterclockwise.
0 V
E6A2-C@@3C: +5 to 12 V
(
E6A2-C@@5C: +12 to 24V
)
Vcc
E6A2
main
circuit
Brown
Blue
Black, white, orange
30 VDC
30 mA max.
(Black: phase A,
White: phase B,
Orange: phase Z)
Output
ON
OFF
T(100%)
1/2T±1/4T (50%±25%)
Output transistor
Note: 1. The white and orange wires of
Single Models (E6A2-CS@@) do
not output signals (no
connection).
2. The white and orange wires of
Single Models (E6A2-CS@@) do
not output signals (no
connection).
3. Voltage Output Models are
capable of sinking a maximum
current of 20 mA.
Color Signal
Brown Vcc
Black Phase A
White Phase B
Orange Phase Z
Blue 0 V (common)
ON(H)*
OFF(L)
ON(H)
OFF(L)
ON(H)
OFF(L)
ON(H)*
OFF(L)
ON(H)
OFF(L)
ON(H)
OFF(L)
T(360˚)
1/4T±1/8T (90˚±45˚)
1/4T±1/8T (90˚±45˚)
T(360˚)
Phase A
Phase B
Phase Z
Phase A
Phase B
Phase Z
Direction of rotation: CCW
(as viewed from end of shaft)
Output transistor
Direction of rotation: CW
(as viewed from end of shaft)
Output transistor
CW
CCW
0 V
2 kΩ
Vcc (+5 to 12 V)
E6A2
main
circuit
Brown
Blue
20 mA
max.
Black, white, orange
Output (Black: phase A,
White: phase B,
Orange: phase Z)
(H)*
(L) 1/2T±1/4T (50%±25%)
T(100%)
Output transistor
WARNING
Precautions for Correct Use
E6A2-C
4
(Unit: mm)
Dimensions Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.
Encoder
Accessories (Order Separately)
Coupling Servo Mounting Bracket
E69-C04B E69-1
Refer to Accessories for details.
12 0
-
0.05
dia.
4 0
-0.012 dia.
3.6
22 dia.
1.5
1.5
8
(46.5)
22910
*
6
5.5
25 dia.
18±0.2
* 4-dia. vinyl-insulated round cable with 5 conductors (Conductor cross
section: 0.14 mm2, Insulator diameter: 0.9 mm),
Standard length: 500 mm
Two, M3 holes,
Depth: 4
E6A2-C
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or
comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS
OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT
SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
•
Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
•
Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
•
Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the
result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2010.11
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2010 All Right Reserved.
