1
CSM_E6B2-C_DS_E_6_1
Incremental 40-mm-dia. Rotary Encoder
E6B2-C
General-purpose Encoder with
External Diameter of 40 mm
• Incremental model
• External diameter of 40 mm.
• Resolution of up to 2,000 ppr.
Be sure to read Safety Precautions on
page 4.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Ordering Information
Encoders [Refer to Dimensions on page 4.]
Accessories (Order Separately) [Refer to Dimensions on Rotary Encoder Accessories.]
Note: 1. Refer to Rotary Encoders Accessories on your OMRON website for details.
2. Refer to Precautions For Correct Use of Rotary Encoders on your OMRON website when using the Rotary Encoders together with a Coupling.
Power supply
voltage
Output configura-
tion Resolution (pulses/rotation) Model
5 to 24 VDC NPN open-collector
output
10, 20, 30, 40, 50, 60, 100, 200, 300, 360, 400, 500, 600
E6B2-CWZ6C (resolution) 0.5M
Example: E6B2-CWZ6C 10P/R 0.5M
720, 800, 1,000, 1,024
1,200, 1,500, 1,800, 2,000
12 to 24 VDC PNP open-collector
output
100, 200, 360, 500, 600
E6B2-CWZ5B (resolution) 0.5M
Example: E6B2-CWZ5B 100P/R 0.5M
1,000
2,000
5 to 12 VDC Voltage output
10, 20, 30, 40, 50, 60, 100, 200, 300, 360, 400, 500, 600
E6B2-CWZ3E (resolution) 0.5M
Example: E6B2-CWZ3E 10P/R 0.5M
1,000
1,200, 1,500, 1,800, 2,000
5 VDC Line-driver output
10, 20, 30, 40, 50, 60, 100, 200, 300, 360, 400, 500, 600
E6B2-CWZ1X (resolution) 0.5M
Example: E6B2-CWZ1X 10P/R 0.5M
1,000, 1,024
1,200, 1,500, 1,800, 2,000
Name Model Remarks
Couplings
E69-C06B Provided with the product.
E69-C68B Different end diameter
E69-C610B Different end diameter
E69-C06M Metal construction
Flanges E69-FBA ---
E69-FBA02 E69-2 Servo Mounting Bracket provided.
Servo Mounting Bracket E69-2 ---
2
E6B2-C
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 line driver output is a data transmission circuit compatible with RS-422A and long-distance transmission is possible with a twisted-pair cable. The quality is
equivalent to AM26LS31.
*3. The maximum electrical response speed is determined by the resolution and maximum response frequency as follows:
This means that the E6B2-C Rotary Encoder will not operate electrically if its speed exceeds the maximum electrical response speed.
Item Model E6B2-CWZ6C E6B2-CWZ5B E6B2-CWZ3E E6B2-CWZ1X
Power supply
voltage
5 VDC −5% to 24 VDC
+15%, ripple (p-p): 5% max.
12 VDC −10% to 24 VDC
+15%, ripple (p-p): 5% max.
5 VDC −5% to 12 VDC
+10%, ripple (p-p): 5% max.
5 VDC ±5%, ripple (p-p):
5% max.
Current
consumption *180 mA max. 100 mA max. 160 mA max.
Resolution
(pulses/rotation)
10, 20, 30, 40, 50, 60, 100,
200, 300, 360, 400, 500, 600,
720, 800, 1,000, 1,024,
1,200, 1,500, 1,800, 2,000
100, 200, 360, 500, 600,
1,000, 2,000
10, 20, 30, 40, 50, 60, 100,
200, 300, 360, 400, 500, 600,
1,000, 1,200, 1,500, 1,800,
2,000
10, 20, 30, 40, 50, 60, 100,
200, 300, 360, 400, 500, 600,
1,000, 1,024, 1,200, 1,500,
1,800, 2,000
Output phases Phases A, B, and Z Phases A, A, B, B, Z, and Z
Phase difference
between outputs 90°±45° between A and B (1/4 T ± 1/8 T)
Output
configuration NPN open-collector output PNP open-collector output Voltage output (NPN output) Line driver output *2
Output capacity
Applied voltage: 30 VDC
max.
Sink current: 35 mA max.
Residual voltage: 0.4 V max.
(at sink current of 35 mA)
Applied voltage: 30 VDC
max.
Source current: 35 mA max.
Residual voltage: 0.4 V max.
(at source current of 35 mA)
Output resistance: 2 kΩ
Sink current: 20 mA max.
Residual voltage: 0.4 V max.
(at sink current of 20 mA)
AM26LS31 equivalent
Output current
High level: IO = −20 mA
Low level: IS = 20 mA
Output voltage:
VO = 2.5 V min.
VS = 0.5 V max.
Maximum
response
frequency *3
100 kHz 50 kHz 100 kHz
Rise and fall times
of output
1 μs max. (Control output
voltage: 5 V, Load resis-
tance: 1 kΩ, Cable length:
2m max.)
1 μs max. (Cable length: 2 m max., Sink current: 10 mA)
0.1 μs max. (Cable length:
2 m max., IO = −20 mA, IS =
20 mA)
Starting torque 0.98 mN·m max.
Moment of inertia 1×10−6 kg·m2 max.; 3 × 10−7 kg·m2 max. at 600 P/R max.
Shaft
load-
ing
Radial 30 N
Thrust 20 N
Maximum
permissible speed 6,000 r/min
Protection circuits Power supply reverse polarity protection, Load short-circuit protection ---
Ambient
temperature range Operating: −10 to 70°C (with no icing), Storage: −25 to 85°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 500 Hz, 150 m/s2 or 2-mm double amplitude for 11 min 3 times each in X, Y, and Z directions
Shock resistance Destruction: 1,000m/s2 3 times each in X, Y, and Z directions
Degree of
protection IEC 60529 IP50
Connection
method Pre-wired Models (Standard cable length: 500 mm)
Materials Case: ABS, Main unit: Aluminum, Shaft: SUS420J2
Weight
(packed state) Approx. 100 g
Accessories Coupling, Hexagonal wrench, Instruction manual
Maximum electrical response speed (rpm) = Maximum response frequency × 60
Resolution
E6B2-C
3
I/O Circuit Diagrams
Note: 1. The shielded cable outer core (shield) is not connected to the inner area or to the case.
2. The phase A, phase B, and phase Z circuits are all identical.
3. Normally, connect GND to 0 V or to an external ground.
Model/Output Circuits Output mode Connection
E6B2-CWZ6C
GND
0 V
5 VDC -
5% to
24 VDC +
15%
3.3 Ω
35 mA
max. at
30 VDC
max.
NPN
transistor
E6B2
main
circuit
Output signal
(Black: phase A, White:
phase B, Orange: phase
Z)
Blue
Brown
Shield
Black, white, orange
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
T(360˚)
1/4±1/8T (90˚±45˚) 1/4±1/8T (90˚±45˚)
T(360˚)
Phase A
Phase B
Phase Z
Phase A
Phase B
Phase Z
CWCCW
E6B2-CWZ6C NPN Open-collector Output Model
E6B2-CWZ5B PNP Open-collector Output Model
Direction of rotation: CW
(as viewed from end of shaft)
Direction of rotation: CCW
(as viewed from end of shaft)
Note: Phase A is 1/4 T ± 1/8 T
faster than phase B.
Note: Phase A is 1/4 T ± 1/8 T
slower than phase B.
The ONs in the above timing chart mean that the
output transistor is ON and the OFFs mean that the
output transistor is OFF.
Color Terminal
BrownPower supply
(+Vcc)
Black Output phase
A
White Output phase
B
Orange Output phase
Z
Blue 0 V (common)
E6B2-CWZ5B
E6B2-CWZ3E
GND
0 V
3.3 Ω
2 kΩ
5 VDC −5% to
12 VDC +10%
20 mA
max.
NPN
transistor
E6B2
main
circuit
Output signal
(Black: phase A, White: phase
B, Orange: phase Z)
Blue
Brown
Shield
Black, white, orange
E6B2-CWZ3E Voltage Output Model
Direction of rotation: CW
(as viewed from end of shaft)
Direction of rotation: CCW
(as viewed from end of shaft)
Note: Phase A is 1/4 T ± 1/8 T
faster than phase B.
Note: Phase A is 1/4 T ± 1/8 T
slower than phase B.
H
L
H
L
H
L
H
L
H
L
H
L
T(360˚)
1/4±1/8T(90˚±45˚) 1/4±1/8T(90˚±45˚)
T(360˚)
Phase A
Phase B
Phase Z
Phase A
Phase B
Phase Z
CWCCW
“H” and “L” in the diagrams are the output voltage
levels of phases A, B, and Z.
E6B2-CWZ1X
GND
0 V
5 VDC ±5%
(Black/red: Phase A, White/red:
Phase B, Orange/red: Phase Z)
E6B2
main
circuit
AM26
LS31
equivalent
Non-reversed output
(Black: phase A, White: phase B,
Orange: phase Z)
Reversed output
Blue
Brown
Shield
Black, white,
orange
Black, white, orange
(with red stripe)
Phase A
Phase B
Phase Z
Phase A
Phase B
Phase Z
Phase A
Phase B
Phase Z
Phase A
Phase B
Phase Z
T(360˚)
H
L
H
L
H
L
H
L
H
L
H
L
1/4±1/8T (90˚±45˚)
H
L
H
L
H
L
H
L
H
L
H
L
T(360˚)
1/4±1/8T (90˚±45˚)
CWCCW
E6B2-CWZ1X Line Driver Output Model
Direction of rotation: CW
(as viewed from end of shaft)
Direction of rotation: CCW
(as viewed from end of shaft)
Note: Phase A is 1/4 T ± 1/8 T
faster than phase B.
Note: Phase A is 1/4 T ± 1/8 T
slower than phase B.
“H” and “L” in the diagrams are the output voltage
levels of phases A, B, and Z.
Note: Receiver: AM26LS32
equivalent
Color Terminal
BrownPower supply
(+Vcc)
Black Output phase
A
Black/red
stripes
Output phase
A
White Output phase
B
White/red
stripes
Output phase
B
Orange Output phase
Z
Orange/
red
stripes
Output phase
Z
Blue 0 V (common)
4
E6B2-C
Safety Precautions
Be sure to read the precautions for all models in the website at: http://www.ia.omron.com/.
This product is not designed or rated for ensuring
safety of persons either directly or indirectly.
Do not use it for such purposes.
Incorrect wiring may damage internal circuits.
Do not use the Encoder under ambient conditions that exceed the
ratings.
● Mounting
•Origin Indication
It is easy to adjust the position of phase Z with the origin indication
function. The following illustration shows the relationship between
phase Z and the origin. Set cut face D to the phase Z origin as
shown in the illustration.
•Do not extend the length of the cable to more than 2 m. If the cable
must be more than 2 m, use a Model with a Line-driver Output
(max. length: 100 m).
● 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.
(Unit: mm)
Dimensions Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.
Encoder
Accessories (Order Separately)
Refer to Rotary Encoders Accessories on your OMRON website for details.
WARNING
Precautions for Safe Use
Precautions for Correct Use
30±
0.2
dia.
120˚120˚
Phase Z origin
Cut face D
Origin
E6B2-C
10
39515
7.5
0
-0.021
6 0
-0.012
dia.
20 dia. 1
40 dia.
120˚120˚
30±0.2 dia.
8
*
Origin of phase Z Three, M3 holes;
Depth: 7 mm
*E6B2-CWZ6C/5B/3E:
5-dia. vinyl-insulated round cable with 5 conductors
(Conductor cross section: 0.2 mm2, Insulation
diameter: 1.0 mm), Standard length: 0.5 m
E6B2-CWZ1X:
5-dia. vinyl-insulated round cable with 8 conductors
(Conductor cross section: 0.2 mm2, Insulation
diameter: 1.0 mm), Standard length: 0.5 m
Couplings
E69-C06B
E69-C68B
E69-C610B
E69-C06M
Flanges
E69-FBA
E69-FBA02
Servo Mounting Bracket
E69-2
Terms and Conditions Agreement
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.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses 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. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall
not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials 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 user must correlate
it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
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 part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2017.7
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 2017 All Right Reserved.