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Slim Incremental 50-mm-dia. Rotary Encoder
E6C2-C
CSM_E6C2-C_DS_E_6_2
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.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Be sure to read Safety Precautions on
page 4.
Ordering Information
Encoders [Refer to Dimensions on page 4.]
Power supply
voltage
Output configuration
10, 20, 30, 40, 50, 60, 100, 200, 300, 360, 400, 500, 600
Open-collector output
(NPN)
5 to 24 VDC
12 to 24 VDC
Resolution (pulses/rotation)
720, 800, 1,000, 1,024, 1,200, 1,500, 1,800, 2,000
100, 200, 360, 500, 600
Open-collector output
(PNP)
Model
E6C2-CWZ6C (resolution) 2M
Example: E6C2-CWZ6C 10P/R 2M
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
Accessories (Order Separately) [Refer to Dimensions on Rotary Encoder Accessories.]
Name
Couplings
Flanges
Servo Mounting Bracket
Model
Remarks
E69-C06B
---
E69-C68B
Different end diameter
E69-C610B
Different end diameter
E69-C06M
Metal construction
E69-FCA
---
E69-FCA02
E69-2 Servo Mounting Bracket provided.
E69-2
Provided with E69-FCA02 Flange.
Refer to Accessories for details.
1
E6C2-C
Ratings and Specifications
Item
Model
E6C2-CWZ6C
E6C2-CWZ5B
E6C2-CWZ3E
5 VDC −5% to 12 VDC +10%,
ripple (p-p): 5% max.
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.
Current
consumption*1
80 mA max.
100 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
Output configuration
NPN open-collector output
PNP open-collector output
Voltage output (NPN output)
Line driver output*2
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.
160 mA max.
Phases A, A, B, B, Z, and Z
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)
Maximum response
frequency*3
100 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:
2 m)
Starting torque
10 mN·m max.
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)
1×10−6 kg·m2 max.; 3 × 10−7 kg·m2 max. at 600 P/R max.
Moment of inertia
Shaft
loading
5 VDC ±5%, ripple (p-p): 5% max.
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
100 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.
---
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.
Phase Z origin
Origin
Cut face D
120˚
120˚
38 dia.
*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:
Maximum response frequency
× 60
Maximum electrical response speed (rpm) =
Resolution
This means that the E6C2-C Rotary Encoder will not operate electrically if its speed exceeds the maximum electrical response speed.
2
E6C2-C
I/O Circuit Diagrams
Model/Output Circuits
Output mode
Connection
E6C2-CWZ6C
5 VDC −5% to
24 VDC +15%
Black, white, orange
Output signal
E6C2-C
main
circuit
3.3 Ω
NPN
transistor
35 mA
max.
30 VDC
max.
(Black: phase A,
White: phase B,
Orange: phase Z)
Blue
E6C2-CWZ6C NPN Open-collector Output Model
E6C2-CWZ5B PNP Open-collector Output Model
Direction of rotation: CW
(as viewed from end of shaft)
0V
Shield
T(360˚)
GND
Phase A
Phase B
E6C2-CWZ5B
Phase Z
Brown
12 VDC
24 VDC
3.3 Ω
35 mA
max.
E6C2-C
main
circuit
PNP
transistor
−10% to
+15%
Black, white,
orange
Blue
Output signal
(Black: phase A, White:
phase B, Orange: phase
CW
ON
OFF
ON
OFF
ON
OFF
Direction of rotation: CCW
(as viewed from end of shaft)
T(360˚)
Phase A
ON
OFF
ON
Phase B
OFF
1/4˚±1/8T(90˚±45˚)
ON
Phase Z
OFF
Note: Phase A is 1/4 T ± 1/8 T
faster than phase B.
CCW
1/4±1/8T (90˚±45˚)
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.
Brown
Black
White
Orange
0V
Shield
Color
GND
Blue
Terminal
Power supply
(+Vcc)
Output phase
A
Output phase
B
Output phase
Z
0 V (common)
E6C2-CWZ3E
E6C2-CWZ3E Voltage Output Model
Brown
2 kΩ
5 VDC −5% to
12 VDC +10%
Black, white, orange
E6C2-C
main
circuit
NPN
transistor
3.3 Ω
Direction of rotation: CW
(as viewed from end of shaft)
Output signal
(Black: phase A, White: phase
B, Orange: phase Z)
T(360˚)
H
L
H
Phase B
L
H
Phase Z
L
Phase A
20mA
max.
Blue
Shield
0V
GND
Direction of rotation: CCW
(as viewed from end of shaft)
CW
T(360˚)
H
L
H
Phase B
L
1/4±1/8T (90˚±45˚)
H
Phase Z
L
CCW
Phase A
Note: Phase A is 1/4 T ± 1/8 T
faster than phase B.
1/4±1/8T (90˚±45˚)
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
Color
E6C2-CWZ1X Line Driver Output Model
Brown
5 VDC ±5%
Black, white, orange
E6C2-C
main
circuit
AM26
LS31
equivalent
Non-reversed output
(Black: phase A, White: phase B,
Black, White, Orange Orange: phase Z)
Direction of rotation: CW
(as viewed from end of shaft)
T(360˚)
(with red stripe)
Reversed output
(Black/red: Phase A, White/red:
Phase B, Orange/red: Phase Z)
Blue
Shield
0V
GND
Phase A
Phase Z
CW
H
L
H
Phase B
L
H
Phase Z
L
H
Phase A
L
H
Phase B
L
Brown
Direction of rotation: CCW
(as viewed from end of shaft)
T(360˚)
Phase A
Phase B
1/4±1/8T (90˚±45˚)
Phase Z
H
L
Note: Phase A is 1/4 T ± 1/8 T
faster than phase B.
Phase A
Phase B
Phase Z
CCW
H
L
H
L
H
1/4±1/8T (90˚±45˚)
L
H
L
H
L
H
L
Terminal
Power supply
(+Vcc)
Output phase A
Output phase B
Output phase Z
Black
White
Orange
Black/red
Output phase A
stripes
White/red
Output phase B
stripes
Orange/
Output phase Z
red stripes
Blue
0 V (common)
Note: Receiver: AM26LS32
equivalent
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: 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.
3
E6C2-C
Safety Precautions
Refer to Warranty and Limitations of Liability.
WARNING
This product is not designed or rated for ensuring
safety of persons either directly or indirectly.
Do not use it for such purposes.
Precautions for Correct Use
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 linedriver output: 100 m).
• 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.
* 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)
(Unit: mm)
Dimensions
Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.
Encoder
E6C2-CWZ@@
(60)
Origin of Phase Z
Three, M4
holes; Depth:
7 mm
1.6
15
10
5
40
(6.59)
0
6 -0.021
dia.
1
0
25 -0.021
50 dia. dia.
120˚
120˚
38 dia.
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
Accessories (Order Separately)
Couplings
E69-C06B
E69-C68B
E69-C610B
E69-C06M
Flanges
E69-FCA
E69-FCA02
Servo Mounting Bracket
E69-2 (Three brackets in a set.)
Refer to Accessories for details.
4
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.
2015.10
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 2015 All Right Reserved.
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