1
CSM_E6C2-C_DS_E_6_1
Slim Incremental 50-mm-dia. Rotary Encoder
E6C2-C
General-purpose Encoder with
External Diameter of 50 mm
• Incremental model
• External diameter of 50 mm.
• Resolution of up to 2,000 ppr.
• IP64 (improved oil-proof construction with sealed bearings)
• Side or back connections are possible. Pre-wired Models with cable
connected at an angle.
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.]
Refer to Accessories for details.
Power supply
voltage Output configuration Resolution (pulses/rotation) Model
5 to 24 VDC Open-collector output
(NPN)
10, 20, 30, 40, 50, 60, 100, 200, 300, 360, 400, 500, 600 E6C2-CWZ6C (resolution) 2M
Example: E6C2-CWZ6C 10P/R 2M
720, 800, 1,000, 1,024, 1,200, 1,500, 1,800, 2,000
12 to 24 VDC Open-collector output
(PNP)
100, 200, 360, 500, 600 E6C2-CWZ5B (resolution) 2M
Example: E6C2-CWZ5B 100P/R 2M
1,000, 2,000
5 to 12 VDC Voltage output
10, 20, 30, 40, 50, 60, 100, 200, 300, 360, 400, 500, 600 E6C2-CWZ3E (resolution) 2M
Example: E6C2-CWZ3E 10P/R 2M
720, 800, 1,000, 1,024, 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 E6C2-CWZ1X (resolution) 2M
Example: E6C2-CWZ1X 10P/R 2M
720, 800, 1,000, 1,024, 1,200, 1,500, 1,800, 2,000
Name Model Remarks
Couplings
E69-C06B ---
E69-C68B Different end diameter
E69-C610B Different end diameter
E69-C06M Metal construction
Flanges E69-FCA ---
E69-FCA02 E69-2 Servo Mounting Bracket provided.
Servo Mounting Bracket E69-2 Provided with E69-FCA02 Flange.
2
E6C2-C
Ratings and Specifications
Note: Origin Indication
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.
*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.(AM26LS31
equivalent)
*3. The maximum electrical response speed is determined by the resolution and maximum response frequency as follows:
This means that the E6C2-C Rotary Encoder will not operate electrically if its speed exceeds the maximum electrical response speed.
Item Model E6C2-CWZ6C E6C2-CWZ5B E6C2-CWZ3E E6C2-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, 720, 800,
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
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
Output current: 20 mA max.
Residual voltage: 0.4 V max.
(at sink current of 20 mA)
AM26LS31 equivalent
Output voltage:
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*3100 kHz 50 kHz 100 kHz
Phase difference
between outputs 90°±45° between A and B (1/4 T ± 1/8 T)
Rise and fall times of
output
1 μs max.
(Control output voltage: 5 V, Load
resistance: 1 kΩ, Cable length:
2m)
1 μs max.
(Cable length: 2 m, Sink current: 10 mA)
0.1 μs max.
(Cable length: 2 m, IO = −20 mA,
IS = 20 mA)
Starting torque 10 mN·m max.
Moment of inertia 1×10−6 kg·m2 max.; 3 × 10−7 kg·m2 max. at 600 P/R max.
Shaft
loading
Radial 50 N
Thrust 30 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: 1,000 m/s2 3 times each in X, Y, and Z directions
Degree of protection IEC 60529 IP64, in-house standards: oilproof
Connection method Pre-wired Models (Standard cable length: 2 m)
Material Case: Zinc alloy, Main unit: Aluminum, Shaft: SUS420J2
Weight
(packed state) Approx. 400 g
Accessories Instruction manual Note: Coupling, mounting bracket and hex-head spanner are sold separately.
38 dia.
120˚ 120˚
Phase Z origin
Cut face D
Origin
Maximum electrical response speed (rpm) = Maximum response frequency
Resolution × 60
E6C2-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
GND
0 V
3.3 Ω
35 mA
max.
30 VDC
max.
5 VDC −5% to
24 VDC +15%
NPN
transistor
E6C2-C
main
circuit
(Black: phase A,
White: phase B,
Orange: phase Z)
Blue
Shield
Black, white, orange
Output signal
E6C2-CWZ6C
Phase A
Phase B
Phase Z
Phase A
Phase B
Phase Z
ON
OFF
ON
OFF
ON
OFF
T(360˚)
ON
OFF
ON
OFF
ON
OFF
1/4˚±1/8T(90˚±45˚) 1/4±1/8T (90˚±45˚)
T(360˚)
CW CCW
E6C2-CWZ6C NPN Open-collector Output Model
E6C2-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.
GND
0 V
3.3 Ω
12 VDC −10% to
24 VDC +15%
35 mA
max.
PNP
transistor
E6C2-C
main
circuit Output signal
(Black: phase A, White:
phase B, Orange: phase
Blue
Brown
Shield
Black, white,
orange
E6C2-CWZ5B
GND
0 V
3.3 Ω
20mA
max.
2 kΩ
5 VDC −5% to
12 VDC +10%
NPN
transistor
E6C2-C
main
circuit
Output signal
(Black: phase A, White: phase
B, Orange: phase Z)
Blue
Brown
Shield
Black, white, orange
E6C2-CWZ3E
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
T(360˚)
1/4±1/8T (90˚±45˚)1/4±1/8T (90˚±45˚)
CW CCW
E6C2-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” and “L” in the diagrams are the output voltage
levels of phases A, B, and Z.
E6C2-CWZ1X
(Black/red: Phase A, White/red:
Phase B, Orange/red: Phase Z)
GND
0 V
5 VDC ±
5%
E6C2-C
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)
E6C2-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)
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
T(360˚) T(360˚)
CW CCW
Phase A
Phase B
Phase Z
Phase A
Phase B
Phase Z
Phase A
Phase B
Phase Z
Phase A
Phase B
Phase Z
1/4±1/8T (90˚±45˚)
1/4±1/8T (90˚±45˚)
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.
4
E6C2-C
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
Cable Extension Characteristics
•When the cable length is extended, the output waveform startup
time is lengthened and it affects the phase difference
characteristics of phases A and B. Conditions will change
according to frequency, noise, and other factors. As a guideline,
use a cable length of 10 m* or less. If the cable must be more than
2 m, use a Model with a Line-driver Output (max. length for line-
driver output: 100 m).
* Recommended Cable
Conductor cross section: 0.2 mm2
Spiral shield
Conductor resistance: 92 Ω/km max. (20°C)
Insulation resistance: 5 Ω/km min. (20°C)
•The output waveform startup time changes not only according to
the length of the cable, but also according to the load resistance
and the cable type.
•Extending the cable length not only changes the startup time, but
also increases the output residual voltage.
● Connection
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)
Servo Mounting Bracket
E69-2 (Three brackets in a set.)
Refer to Accessories for details.
WARNING
Precautions for Correct Use
E6C2-CWZ@@
6
0
-0.021
dia.
25
0
-0.021
50 dia.
1
1.6 10
5
15 40 (6.59)
(60)
38 dia.
120˚ 120˚
dia.
Three, M4
holes; Depth:
7 mm
Origin of Phase Z
5-dia. oil-resistant PVC-insulated shielded cable with 5 conductors
(line driver: 8 conductors)
(Conductor cross section: 0.2 mm2, Insulator diameter: 1.0 mm),
Standard length: 2 m
Couplings
E69-C06B
E69-C68B
E69-C610B
E69-C06M
Flanges
E69-FCA
E69-FCA02
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.
2014.1
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 2014 All Right Reserved.
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Omron:
E6C2-CWZ3E 1000P/R 2M E6C2-CWZ3E 100P/R 2M E6C2-CWZ3E 10P/R 2M E6C2-CWZ3E 1200P/R 2M E6C2-
CWZ3E 1500P/R 2M E6C2-CWZ3E 2000P/R 2M E6C2-CWZ3E 200P/R 2M E6C2-CWZ3E 20P/R 2M E6C2-CWZ3E
300P/R 2M E6C2-CWZ3E 30P/R 2M E6C2-CWZ3E 360P/R 2M E6C2-CWZ3E 400P/R 2M E6C2-CWZ3E 40P/R 2M
E6C2-CWZ3E 500P/R 2M E6C2-CWZ3E 50P/R 2M E6C2-CWZ3E 600P/R 2M E6C2-CWZ3E 60P/R 2M E6C2-
CWZ5B 100P/R 2M E6C2-CWZ5B 2000P/R 2M E6C2-CWZ5B 360P/R 2M E6C2-CWZ5B 500P/R 2M E6C2-CWZ5B
600P/R 2M E6C2-CWZ6C 1000P/R 2M E6C2-CWZ6C 100P/R 2M E6C2-CWZ6C 1024P/R 2M E6C2-CWZ6C
1200P/R 2M E6C2-CWZ6C 1500P/R 2M E6C2-CWZ6C 1800P/R 2M E6C2-CWZ6C 200P/R 2M E6C2-CWZ6C 20P/R
2M E6C2-CWZ6C 30P/R 2M E6C2-CWZ6C 400P/R 2M E6C2-CWZ6C 40P/R 2M E6C2-CWZ6C 500P/R 2M E6C2-
CWZ6C 60P/R 2M E6C2-CWZ6C 720P/R E6C2-CWZ6C 800P/R 2M E6C2-CWZ1X 1024P/R 2M