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Hollow-shaft Encoder with Diameter of 40 mm
E6H-C
CSM_E6H-C_DS_E_5_2
Hollow-shaft Encoder
• Incremental model.
• External diameter of 40 mm.
• Resolution of up to 3,600 ppr.
• Slim design at only 26 mm thick.
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
5 to 24 VDC
Open-collector output
5 to 12 VDC
Voltage output
5 to 12 VDC
Line-driver output
Resolution (pulses/rotation)
300, 360, 500, 600, 720, 800, 1,000, 1,024
1,200, 1,500, 1,800, 2,000, 2,048
2,500, 3,600
300, 360, 500, 600, 720, 800, 1,000, 1,024
1,200, 1,500, 1,800, 2,000, 2,048
2,500, 3,600
300, 360, 500, 600, 720, 800, 1,000, 1,024
1,200, 1,500, 1,800, 2,000, 2,048
2,500, 3,600
Model
E6H-CWZ6C (resolution) 0.5M
Example: E6H-CWZ6C 300P/R 0.5M
E6H-CWZ3E (resolution) 0.5M
Example: E6H-CWZ3E 300P/R 0.5M
E6H-CWZ3X (resolution) 0.5M
Example: E6H-CWZ3X 300P/R 0.5M
1
E6H-C
Ratings and Specifications
Item
Model
E6H-CWZ6C
5 VDC −5% to 24 VDC +15%, ripple
Power supply voltage
(p-p): 5% max.
E6H-CWZ3E
E6H-CWZ3X
5 VDC −5% to 12 VDC +10%, ripple (p-p): 5% max.
Current
consumption*1
100 mA max.
Resolution
(pulses/rotation)
300, 360, 500, 600, 720, 800, 1,000, 1,024, 1,200, 1,500, 1,800, 2,000, 2,048, 2,500, 3,600
Output phases
Phases A, B, and Z
Output configuration
Open-collector output
Voltage output
Line-driver output*4
Output capacity
Applied voltage: 35 VDC max.
Sink current: 35 mA max.
Residual voltage: 0.7 V max. (at sink
current of 35 mA)
Output resistance: 1 kΩ
Sink current: 30 mA max.
Residual voltage: 0.7 V max. (at sink
current of 30 mA)
Output current: High level: IO =
−10 mA
Low level: Is = 10 mA
Output voltage: VO = 2.5 V min.
VS = 0.5 V
Maximum response
frequency*2
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, Output cable:
500 mm)
Starting torque
1.5 mN·m max.
Moment of inertia
2×10−6kg·m2 max.
Shaft
loading
Radial
29.4 N
Thrust
4.9 N
Maximum
permissible speed
150 mA max.
Phases A, A, B, B, Z, and Z
1 μs max. (I0 = −10 mA, IS = 10 mA,
Output cable: 500 mm)
10,000 r/min
Ambient temperature
Operating: −10 to 70°C (at 90% humidity max.), Storage: −30 to 85°C (with no icing)
range
Ambient humidity
range
Operating/Storage: 95% max. (with no condensation)
Insulation resistance
Excluded because of capacitor ground.
Dielectric strength
Excluded because of capacitor ground.
Vibration resistance
Destruction: 10 to 500 Hz, 100 m/s2 or 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance
300 m/s2 for 11 ms 3 times each in X, Y, and Z directions (excluding shock to the shaft)
Degree of
protection*3
IEC 60529 IP50
Connection method
Pre-wired Models (Standard cable length: 0.5 m)
Material
Case: Iron, Main unit: Aluminum, Pressboard panel: SUS304
Weight (packed state) Approx. 120 g
Accessories
Instruction manual
*1. An inrush current of approximately 6 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:
Maximum response frequency
× 60
Maximum electrical response speed (rpm) =
Resolution
This means that the Rotary Encoder will not operate electrically if its speed exceeds the maximum electrical response speed.
*3. No protection is provided against water or oil.
*4. 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.
2
E6H-C
I/O Circuit Diagrams
Model/Output Circuits
Output mode
Connection
E6H-CWZ6C
Open-collector output
Direction of rotation: CW
Direction of rotation: CCW
(as viewed from end of shaft) (as viewed from end of shaft)
Brown
5 to 24 VDC
Phase A
Black, white,
orange
E6H
main
circuit
NPN
transistor
35 mA
max.
35 VDC
max.
Output signal
(Black: phase A,
White: phase B,
Orange: phase Z)
Blue
0V
GND
Shield
Phase B
Phase Z
CW
T(360°)
Phase A
OFF
ON
Phase B
OFF
ON
1/4T±1/8T (90°±45°) Phase Z
OFF
ON
Note: Phase A is 1/4 T ± 1/8 T
faster than phase B.
T(360°)
CCW
OFF
ON
OFF
ON
OFF
ON
1/4T±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.
Color
Brown
Black
White
Orange
Blue
E6H-CWZ3E
Voltage output
Brown
1 kΩ
E6H
main
circuit
Blue
Shield
Direction of rotation: CCW
Direction of rotation: CW
(as viewed from end of shaft) (as viewed from end of shaft)
0V
GND
E6H-CWZ3X
CW
T(360°)
Phase A
Output signal
(Black: phase A,
White: phase B,
Orange: phase Z)
NPN
transistor
30 mA
max.
5 to 12 VDC
Black, white,
orange
H
L
Phase B
H
L
Phase Z
H
L
Phase A
H
L
Phase B
H
L
1/4T±1/8T (90°±45°) Phase Z H
L
Note: Phase A is 1/4 T ± 1/8 T
faster than phase B.
T(360°)
CCW
1/4T±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.
Line-driver output
Color
Direction of rotation: CW
Direction of rotation: CCW
(as viewed from end of shaft) (as viewed from end of shaft)
T(360°)
Brown
5 to 12 VDC
Black, white,
orange
E6H
main
circuit
Terminal
Power supply
(+Vcc)
Output phase A
Output phase B
Output phase Z
0 V (common)
AM26
LS31
equivalent
Non-reversed output
(Black: phase A,
Black/red,
White: phase B,
white/red,
Orange: phase Z)
orange/red
Reversed output
(Black/red: phase A,
White/red: phase B,
Orange/red: phase Z)
Blue
Shield
0V
GND
Phase A
H
L
H
Phase B
L
Phase Z
CW
H
L
H
Phase A
L
T(360°)
Phase A
H
L
H
Phase B
L
1/4T±1/8T (90°±45°)
H
Phase Z
L
Phase A
Phase B
H
L
Phase B
Phase Z
H
L
Phase Z
Note: Phase A is 1/4 T ± 1/8 T
faster than phase B.
CCW
1/4T±1/8T (90°±45°)
H
L
H
L
H
L
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.
Brown
Black
Black/
red
White
White/
red
Orange
Orange/
red
Blue
Terminal
Power supply
(+Vcc)
Output phase A
Output phase A
Output phase B
Output phase B
Output phase Z
Output phase Z
0 V (common)
Note: 1. Receiver: AM26LS32
equivalent
2. "Black/red" indicates a red
strip.
Note: Normally connect GND to 0 V or to an external ground.
3
E6H-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.
● Mounting
• When securing the Encoder, use two M3 screws to secure the leaf
spring to the mounting surface.
• Use the Allen set screw provided with the hollow shaft to secure the
shaft. Use a tightening torque of 0.4 N·m and apply screw lock glue
to the screw to prevent it from becoming loose.
• If wiring after securing the Encoder, do not pull on the cable. Also,
do not apply shock to the Encoder or hollow shaft.
• If the Encoder phase Z must be aligned with the origin of the
installation device, mount the Encoder while checking the phase Z
output.
• The diameter of the mating shaft must be 8 −0.012
−0.004 mm and 8 to
11 mm long from the mounting surface.
• The allowable displacement in the mating shaft must 0.05 mm in
the radial direction and 0.3 mm in the thrust direction.
• The mounting surface and shaft must be perpendicular to within
0.03 mm.
• When securing the Encoder, do not allow force to be applied to the
leaf spring (*).
0.03 A
*
● 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.
Eccentricity will develop in the
Encoder if the above values are not
satisfied, and the mounting leaf spring
may be destroyed.
A
Rotary Encoder Recommended Power Supplies: Consult your OMRON representative for details.
(Unit: mm)
Dimensions
E6H-C
Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.
Allen set screws
Two, M3 × 4
screws
Hollow shaft
(Hollow shaft interior
dia.: 8 mm)
7
dia.
8 +0.015
0
40 dia.
54
46
8
dia.
Two, 3.2 +0.1
Two,
0
6.4 dia.
E6H-CWZ6C, E6H-CWZ3E
4.2-dia. shielded cable with 5 conductors
(Conductor cross section: 0.1 mm2,
Insulator diameter: 0.88 mm), Standard
length: 500 mm
E6H-CWZ3X
5.5-dia. shielded cable with 8 conductors
(Conductor cross section: 0.1 mm2,
Insulator diameter: 1.0 mm), Standard
length: 500 mm
10
4.2 dia.
8 dia.
20˚
6
26
4
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Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you
have any questions or comments.
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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.
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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
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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.
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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.
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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
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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.
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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.
2015.9
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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