R
2
Incremental Rotary Encoder E6C2-C
Industrial Strength Encoder Meets
World-Class Standards
HDrip-proof construction
HShaft withstands heavy loads, 5 kgf
radially, 3 kgf thrust (axially)
HShort circuit protection
HSpace-saving, A-slant cable protrusion
for ease of mounting
Ordering Information
Supply voltage Output
configuration
Resolution (P/R) Part number
5to24VDC NPN open
collector output
10, 20, 30, 40, 50, 60, 100, 200, 300, 360, 400, 500, 600,
1,000, 1,200, 1,500, 1,800, 2,000
E6C2-CWZ6C
5to12VDC Voltage output E6C2-CWZ3E
5VDC Line driver output E6C2-CWZ1X
12 to 24 VDC PNP open
collector output
100, 200, 360, 500, 600, 1,000, 2,000 E6C2-CWZ5B
Note: The power supply for the resolutions of 1,000, 1,200, 1,500, 1,800, and 2,000 is 12 to 24 VDC.
JACCESSORIES (ORDER SEPARATELY)
Item Description Part number
Coupling --- E69-C06B
p
g
Incorporates ends different to each other in diameter E69-C68B
Metal construction E69-C06M
Flange --- E69-FCA
g
--- E69-FCA-02
Servo mounting bracket Provided with the E69-FCA02 flange E69-2
E6C2-C E6C2-C
3
Specifications
JRATINGS/CHARACTERISTICS
Electrical
Item E6C2-CWZ6C E6C2-CWZ3E E6C2-CWZ1X E6C2-CWZ5B
Power supply voltage 5to24VDC(allowable
range: 4.75 to 27.6 VDC)
5to12VDC(allowable
range: 4.75 to 13.2 VDC)
5VDC±5% 12 VDC --10% to 24 VDC
+15%
Current consumption
(See Note 1.)
80 mA max. 100 mA max. 160 mA max. 100 mA max.
Resolution 10, 20, 30, 40, 50, 60, 100, 200, 300, 360, 400, 500, 600, 1,000, 1,200, 1,500,
1,800, 2,000 P/R
100, 200, 360, 500, 600,
1,000, 2,000 P/R
Output phases A, B, and Z (reversible) A, A,B,B,Z,Z A, B, and Z (reversible)
Output configuration NPN open collector
output
Voltage output (NPN
output)
Line driver (See Note 2.) PNP open collector
output
Output capacity Applied voltage:
30 VDC max.
Isink:35mAmax.
Residual voltage:
0.4 V max.
(Isink:35mAmax.)
Output resistance: 2 kΩ
(residual voltage:
0.4 V max.
Isink:20mAmax.)
AM26LS31
Output current:
High level (Io): --20 mA
Low level (Is): 20 mA
Output voltage:
Vo:2.5Vmin.
Vs:0.5Vmax.
Isink:35mAmax.
Residual voltage:
0.4 V max.
(Isink:35mAmax.)
Max. response
frequency
(See Note 3.)
100 kHz 50 kHz
Phase difference on
output
90°±45°between A and B (1/4T±1/8T)
Rise and fall times of
output
1µsmax.
(control output voltage: 5 V;
load resistance: 1 kΩ;
cable length: 2 m)
1µsmax.
(cable length: 2 m;
Isink:10mAmax.)
0.1 µsmax.
(cable length: 2 m;
Io:--20mA;
Is:20mA)
1µsmax.
(cable length: 2 m;
Isink:10mAmax.)
Insulation resistance 100 MΩmin. (at 500 VDC) between carry parts and case
Dielectric strength 500 VAC, 50/60 Hz for 1 min between carry parts and case
Note: 1. An inrush current of approx. 9 A flows for approx. 0.3 ms right after the E6C2-C is turned on.
2. The line driver output of the E6C2-C is used for data transmission circuitry conforming to RS-422A and ensures long-distance
transmission over twisted-pair cable, with quality equivalent to AM26LS31.
3. The maximum electrical response revolution is determined by the resolution and maximum response frequency as follows:
Maximum electrical response frequency (rpm) = maximum response frequency/resolution x 60
This means that the E6C2-C Rotary Encoder will not operate electrically if its revolution exceeds the maximum electrical
response revolution.
E6C2-C E6C2-C
4
JMECHANICAL
Item E6C2-CWZ6C E6C2-CWZ3E E6C2-CWZ1X E6C2-CWZ5B
Shaft loading Radial 5 kgf (49.0 N) 11.0 lbf
g
Thrust 3 kgf (29.4 N) 6.6 lbf
Moment of inertia 10 g Scm2(1 x 10-- 6 kg Sm2)max.;3gScm2(3 x 10-- 7 kg Sm2) max. at 600 P/R
max. 6.6 x 103lb/in .85 x 10
Starting torque 100 gf Scm (9.8 mN Sm) max. (7.2 m ft Slbf)
Max. permissible revolution 6,000 rpm
Vibration resistance 10 to 500 Hz, 150 m/s2(15G) or 2-mm double amplitude for 11 min 3 times each in
X, Y, and Z directions
Shock resistance 1,000 m/s2(100G) 3 times each in X, Y, and Z directions
Weight Approx. 400 g max. (cable length: 2 m) 0.88 lbs
JENVIRONMENTAL
Item E6C2-CWZ6C E6C2-CWZ3E E6C2-CWZ1X E6C2-CWZ5B
Ambient temperature Operating -- 1 0 °Cto70°C(14_F to 158_F) with no icing
p
Storage -- 2 5 °Cto85°C(--13_F to 185_F) with no icing
Ambient humidity Operating 35% to 85% (with no condensation)
Protective circuit Protection from load short-circuiting and power supply reverse polarity wiring
Degree of protection IEC IP64 (JEM IP64f drip-proof) (See Note.)
Note: The applicable JEM standard is JEM1030 1991.
O
p
eration
JOUTPUT CIRCUIT DIAGRAM
E6C2-CWZ6C E6C2-CWZ3E
E6C2-CWZ1X
NPN
transistor
35 mA max.
30 VDC max.
Black, white, orange
Output signal
(Black: Phase A;
White: Phase B;
Orange: Phase Z)
Brown
Blue
E6C2-C
main
circuitry
0V
3.3 Ω
NPN
transistor
20 mA max.
Black, white, orange
Output signal
(Black: Phase A;
White: Phase B;
Orange: Phase Z)
Brown
Blue
E6C2-C
main
circuitry
0V
3.3 Ω
2kΩ
AM26LS31 or
equivalent
Black, white, orangeNon-reversed output
(Black: Phase A; White:
Phase B; Orange: Phase Z)
Brown
Blue
E6C2-C
main
circuitry
5VDC±5%
0V
Reversed output (Black/
Red: Phase A; White/Red:
Phase B; Orange/Red:
Phase Z
Black, white, orange
(with red stripes)
5to12VDC(permissible
range: 4.75 to 13.2 VDC)
5to24VDC(permissible
range: 4.75 to 27.6 VDC)
(Shielded) Ground Ground
Ground
(Shielded)
E6C2-CWZ5B
Black, white, orange
Output signal
Brown
Blue
E6C2-C
main
circuitry
0V
3.3 Ω
Ground
(Shielded)
PNP transistor
35 mA max.
(Black: Phase A; White:
Phase B; Orange: Phase Z)
(Shielded)
E6C2-C E6C2-C
5
JTIMING CHARTS
Direction or resolution: Clockwise (CW)
(As viewed from the end of the shaft)
Direction or resolution: Counterclockwise (CCW)
(As viewed from the end of the shaft)
ON
Phase A
OFF
ON
Phase B
OFF
ON
Phase Z
OFF
T (360°)CW
1/4T±1/8T (90°±45°)
ON
Phase A
OFF
ON
Phase B
OFF
ON
Phase Z
OFF
T(360°) CCW
1/4T±1/8T (90°±45°)
Note: Phase A is 1/4±1/8T slower than phase B
Note: Phase A is 1/4±1/8T faster 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.
NPN Open Collector Output
E6C2-CWZ6C
Voltage Output
E6C2-CWZ3E
Direction or resolution: Clockwise (CW)
(As viewed from the end of the shaft)
Direction or resolution: Counterclockwise (CCW)
(As viewed from the end of the shaft)
Note: Phase A is 1/4±1/8T faster than phase B. Note: Phase A is 1/4±1/8T slower than phase B.
H
Phase A
L
H
Phase B
L
H
Phase Z
L
T (360°)CW
1/4T±1/8T (90°±45°)
H
Phase A
L
H
Phase B
L
H
Phase Z
L
T (360°) CCW
1/4T±1/8T (90°±45°)
PNP Open Collector Output
E6C2-CWZ5B
JLINE DRIVER OUTPUT
E6C2-CWZ1X
Direction or resolution: Clockwise (CW)
(As viewed from the end of the shaft)
Direction or resolution: Counterclockwise (CCW)
(As viewed from the end of the shaft)
H
Phase A
L
H
Phase B
L
H
Phase Z
L
H
Phase A
L
H
Phase B
L
H
Phase Z
L
T (360°)CW
1/4T±1/8T (90°±45°)
H
Phase A
L
H
Phase B
L
H
Phase Z
L
H
Phase A
L
H
Phase B
L
H
Phase Z
L
T (360°) CCW
1/4T±1/8T (90°±45°)
E6C2-C E6C2-C
6
JOUTPUT PROTECTION CIRCUIT
The E6C2-C with open collector or voltage output incorporates a circuit protecting the E6C2-C from damage resulting from load short-circuiting
or wiring the output wrong.
JORIGIN INDICATION
It is easy to adjust the position of phase Z with the origin indication function. The illustration below on the left side shows the relationship be-
tween phase Z and the origin. Set cut face D to the origin as shown in the illustration on the right.
Origin of phase Z
Origin
Dcut
38 dia.
JINPUT TO MORE THAN ONE COUNTER FROM ENCODER (WITH VOLTAGE OUTPUT)
Use the following formula to obtain the number of counters to be connected to a single E6C2-C Rotary Encoder.
Number of counters (N) = R1 (E--V)
VxR2
E: Voltage supplied to Rotary Encoder
V: Minimum input voltage of the counter
R2: Output resistance of the Rotary Encoder
R1: Input resistance of the Rotary Encoder
Counter
Encoder output stage
R2
+V
0V
R1 R1
Counter
+E
Connectable
number: N
Dimensions
Unit: mm (inch)
JE6C2-C
Origin of phase Z Three, M4 holes
Depth: 7 mm
38 dia.
50 dia.
(1.97)
25 0
--0.021 dia.
(See Note.)
Note: 2-m-long, PVC code, 5-dia. (18/0.12 dia.) five conductors
and shield (eight conductors for line driver use)
(0.24 )
--.0008
+0
60
(2.36) 40
(1.57)
6.59
(0.26)
5
15
10
1.6
60
--0.021 dia.
1
(0.98 )
--0.0008
+0
E6C2-C E6C2-C
7
JACCESSORIES (ORDER SEPARATELY)
Couplings
E69-C06B E69-C68B
(With Ends of Different Diameter)
Note: The coupling is made of
glass-reinforced PBT.
22
5.5
2.8
11
16.4
15 dia.
Four, M3 hexagon
socket heat set-
screws
5.5
2.8
24.8
6.8
3.5
19 dia.
6.8
3.5
Four, M4 hexagon
socket heat set-
screws
Note: The coupling is made of
glass-reinforced PBT.
E69-C06M (Metal Construction)
Four, M3 hexagon
set screws
Note: Material: Super duralumin
Brass bushing
19.1 dia.
19.1
2.4 2.4
+0.022
--0.00
+0.022
--0.00
(6 ) (8 )
+0.022
--0.00
(6 )
+0.022
--0.00
(6 )
Flanges
E69-FCA E69-FCA-02
43±0.15
52 x 52
5243±0.15
Four, 4.5-dia. holes
Three, 4.5-dia. holes with
8.5-dia. screw-head holes
The flange is made of
SPCC,t=3.2
Four, R3
Note: Material: SPCC, t=3.2
Three, 5.5
screw-head
holes
Mounting bracket:
(A set of three b333rackets provided with t
h
E69-FCA-02)
Mounting Dimensions
Panel
5.5-dia. hole
Two, C1
8
16
(0.63) 5.1
18 16
9
2
3.1 +0.1
0
25.2 0.05±-dia. hole
38 dia.
56 dia.
(2.20)
25.2±0.1 dia.
Three, M5
68±0.2 dia.
25 dia.
(0.98)
0
8.5 dia.
(2.05 x 2.05)
(0.22)
5.5-dia. hole
Two, C1
8
5.1
18 16
9
2
3.1 +0.1
0
E69-2 (A Set of Three)
Note: A set of E69-2 servo mounting
brackets is provided with the
E69-FCA-02 flange.
(0.22)
16
(0.63)
+0.002
-- 0
(0.99 )
(1.69 --0.006 )
+0
(0.99±0.004)
(2.68±0.008)
JSERVO MOUNTING BRACKET
E6C2-C E6C2-C
8
Installation
JCONNECTION
E6C2-CWZ6C/-CWZ3E
Color Terminal
Brown Power supply (+VCC)
Black Output phase A
White Output phase B
Orange Output phase Z
Blue 0 V (common)
Note: Receiver: AM26LS32
E6C2-CWZ1X
Color Terminal
Brown Power supply (+VCC)
Black Output phase A
White Output phase B
Orange Output phase Z
Blue/Red stripes Output phase A
White/Red stripes Output phase B
Orange/Red stripes Output phase Z
Blue 0 V (common)
Note: 1. The shield is not connected to the internal circuits or casing of the E6C2-C.
2. There is no difference in circuit among phases A, B, and Z.
3. Connect the GND terminal to 0 V or the ground when the E6C2-C is in normal operation.
Connection Examples
H7ER Digital Tachometer
E6C2--CWZ3E
5to12VDC
Brown
Black
Blue
H7BR Digital Counter
+12 V
0V
Brown
Black
Blue
White
E6C2-C
Shielded
JH7BR DIGITAL COUNTER
Applicable Model: E6C2-CWZ3E
JH7ER SELF-POWERED TACHOMETER
Applicable Model: E6C2-CWZ3E (with a resolution of 10
or 60 P/R)
E6C2-C E6C2-C
9
E6C2--CWZ6C
Black
White
Blue
Brown
12 VDC
(100 mA)
H7CR-CW
0V
JH7CR-CW DIGITAL COUNTER
Applicable Model: E6C2-CWZ6C
CQM1
Brown (12 V)
E6C2-CWZ6C
Black (Phase A)
E63-WF5C
White (Phase B)
Orange (Phase Z)
Blue (0 V)
Shielded
JCQM1 PROGRAMMABLE CONTROLLER
Applicable Model: E6C2-CWZ6C
JC500-CT001/CT012 HIGH-SPEED
COUNTER UNIT
CW and CCW detection (increment/decrement counting)
Applicable Model: E6C2-CWZ6C
Internal DIP switch settings
Shielded
E6C2-C
Brown
Black
Blue
White
E6C2-C E6C2-C
10
JC200H-CTjj HIGH-SPEED COUNTER UNIT
Note: Apply the following connections if the power supply to
theE6C2-Cis12or24V.
Phase A and power supply: 12 V to A8/B8 and 24 V
A9/B9
Phase B and power supply: 12 V to A12/B12 and 24 to
A13/B13
Phase Z and power supply: 12 V to A16/B16 and 24 V
to A17/B17
Applicable Model: E6C2-CWZ5B
Encoder at 0 V
+12 V
0V
Phase A
12-VDC power supply
+12 V
0V
Phase B
Phase A
Phase B
Note: Apply the following connections if the power supply to
the E6C2-C is 5 or 24 V.
Phase A and power supply: 5 V to A19 and 24 V to
B20
Phase B and power supply: 5 V to A17 and 24 V to
B18
Applicable model: E6C2-CWZ6C
Typical model: C200H-CT001-V1
+12 V
0V
Phase A
12-VDC power supply
+12 V
0V
Phase B
Phase Z
Phase Z Phase Z
0V 5to
24 VDC
Phase B Phase B
Phase A Phase A
JCQM1-CPU43-EV1 (AS BUILT-IN HIGH-SPEED COUNTER)
The pulse output of the E6C2-C can be directly input into IN04,
IN05, and IN06 of the CPU Unit to use these three points as a
built-in high-speed counter.
The single-phase response speed is 5 kHz, and the two-phase
response speed is 2.5 kHz. The count value is within a range
between 0 and 65,535 in increment mode and --32,767 and
32,767 in decrement mode.
The operating mode of the high-speed counter is set with the PC
Setup in the DM area.
Count Mode
Up/Down mode Increment/decrement counter uses phases
A and B.
Incrementing
mode
Increment counter uses phase A only.
Normal mode IN04 through IN06 are used for normal
input.
Applicable Model: E6C2-CWZ6C
CQM1-CPU43
CQM1
E6C2-CWZ6C
IR 0000
Phase A
Phase B
Phase Z
Reset
The present count value can be reset with the soft-reset function or
the AND of soft reset and phase Z input.
Output
Target value When the count value reaches the target
value, the specified subroutine is executed.
A maximum of 16 target values can be set.
Range
comparison
When the count value is within the range,
the specified subroutine is executed. A
maximum of 8 ranges can be set with upper
and lower limits.
E6C2-C E6C2-C
11
Precautions
JAVOID DAMAGE OR MALFUNCTION
•Do not impose voltage exceeding the rated voltage range on
the E6C2-C.
•Be sure that the wiring of power supply to the E6C2-C is
correct.
•Turn off the Rotary Encoder when wiring.
•Do not wire power lines or high-tension lines along with the
power supply lines of the E6C2-C Rotary Encoder.
JMOUNTING
•Be careful not to spray water or oil onto the E6C2-C Rotary
Encoder.
•The E6C2-C Rotary Encoder consists of high-precision
components. To avoid malfunction, handle with extreme care
and do not drop the Rotary Encoder.
•Do not pull the cable of the E6C2-C Rotary Encoder after the
E6C2-C Rotary Encoder is mounted to a panel. Do not apply
any shock to the hollow shaft or the body.
•When the E6C2-C Rotary Encoder is used in reversed
operation, pay utmost attention to the mounting direction of
the E6C2-C Rotary Encoder and the directions of increment
and decrement rotation.
•To match phase Z of the E6C2-C Rotary Encoder and the
origin of the device to be connected to the E6C2-C Rotary
Encoder, the phase Z outputs must conform while connecting
the device.
•Be careful not to impose an excessive load on the shaft if the
shaft connects to a gear.
•If the Rotary Encoder is mounted with screws, the tightening
torque must be approximately 5 kgf Scm (0.49 N Sm)
0.36 ft lbf.
•If the Rotary Encoder is mounted to a panel, do not pull the
cable with more than a force of 3 kgf (29.4 N) 6.61 lbf.
Mounting plate
Cable
3 kgf (29.4 N) max.
E6C2-C
•No shock must be given to the shaft or coupling. Do not hit the
shaft or coupling with a hammer when inserting the shaft into
the coupling.
Refer to the following illustrations when using a standard coupling.
Decentering
tolerance
0.15 mm max.
(0.006)
Declination
tolerance
2°max.
Displacement
tolerance in the
shaft direction 0.05 mm max.
(0.002)
When connecting or disconnecting the coupling, do not impose an
excessive bending, pressing, or pulling force on the E6C2-C.
When connecting the shaft of the Rotary Encoder with a chain tim-
ing belt or gear, connect the chain timing belt or gear with the shaft
via the bearing and coupling as shown in the following illustration.
Chain sprocket
Bearing
Coupling
E6C2-C
If the decentering or declination value exceeds the tolerance, an ex-
cessive load imposed on the shaft may damage the Rotary Encoder
or shorten the life of the Rotary Encoder.
Bearing Life
The following graph shows the life expectancy of the bearing with
radial and thrust loads imposed on the bearing. (Theoretical)
Radial load Wr (kgf)
Encoder
Shaft
Wr: Radial load
Ws: Thrust load
Life (x 10 revolutions)
9
E6C2-C E6C2-C
12
Mounting Procedure
1. Insert the shaft into the coupling.
Do not secure the coupling and shaft with screws at this
stage.
2. Secure the Rotary Encoder.
Refer to the following table for the maximum insertion length
of the shaft into the coupling.
Part number Maximum insertion length
E69-C06B 5.5 mm (0.22)
E69-C06M 8.5 mm (0.33)
3. Secure the coupling.
Part number Tightening torque
E69-C06B 2.5 kgf Scm (0.25 N Sm)
0.18 ft lbf
E69-C06M 7kgfScm (0.7 N Sm) 0.52 ft lbf
4. Connect the power and I/O lines.
Be sure to turn off the Rotary Encoder when connecting the
lines.
5. Turn on the Rotary Encoder and check the output.
JCONNECTING
•When extending the cable, select the type carefully. You must
consider the response frequency because the longer the cable
is, the more the residual voltage increases due to the
resistance of the cable and the capacitance between the
wires. As a result, the waveform will be distorted.
•We recommend the line driver output type model if the cable
needs to be extended.
•In order to reduce inductive noise, the cable must be as short
as possible, especially when the signal is input to an IC.
•Insert a surge absorber between the power supply terminals if
a possibility of surge exists.
•A wrong pulse may be generated when the E6C2-C Rotary
Encoder is turned on or off. Do not use the connected device
for 0.1 s after the E6C2-C Rotary Encoder is turned on and for
0.1 s before the E6C2-C Rotary Encoder is turned off.
Cable Extension
•The rise time of each output waveform will increase when the
cable is extended. This affects the phase difference
characteristics of phases A and B.
•The available length of cable varies with the response
frequency and noise. It is safer to limit the length of cable to
10 m maximum. If a longer cable of up to 100 m is required,
use line driver output.
Note: Recommended cable:
Cross section: 0.2 mm2with spiral shield
Conductor resistance: 92 Ω/kmmax.at20°C
Insulation resistance: 5 MΩ/kmmin.at20°C
•The rise time varies with the resistance of the cable and the
type and length of the cable.
•The residual output voltage will increase according to the
length of the cable.
Cable length L (m)
Residual output voltage V (V)
OL
Output rise time t ( s)
LH µ
Conditions
Rotary Encoder: E6C2-CWZ6C
Load voltage: 5 VDC
Load resistance: 1 kΩ(The residual output voltages were mea-
sured with a load current of 35 mA.)
Cable: Dedicated cable
JPREVENTING MISCOUNTING
•If the operation of the E6C2-C Rotary Encoder is stopped near
a signal rising or falling edge, a wrong pulse may be
generated, causing the E6C2-C Rotary Encoder to miscount.
In this case, use an increment-decrement counter to prevent
miscounting.
JEXTENSION OF LINE DRIVER OUTPUT
•Be sure to use a twisted-pair cable to extend a line driver
cable. Use an RS-422A receiver for the receiver side.
•The twisted-pair wires as shown in the following illustration are
suitable for RS-422A signal transmission. Normal mode noise
can be eliminated by twisting the wires because the generated
electrical forces on the lines cancel each other.
EE
EE
Twisted-pair wires
•Be sure the E6C2-C Rotary Encoder is supplied with 5 VDC
when a line driver output is used. There will be approximately
a 1-V voltage drop if the cable length is 100 m.
E6C2-C E6C2-C
Cat. No. CEDSAX4 11/01 Specifications subject to change without notice. Printed in U.S.A.
OMRONELECTRONICSLLC
One EastCommerceDrive
Schaumburg, IL 60173
NOTE:DIMENSIONS SHOWN AREINMILLIMETERS.To convertmillimeterstoinches divideby 25.4.
1-800-55-OMRON
OMRON CANADA, INC.
885 MilnerAvenue
Scarborough,OntarioM1B5V8
416-286-6465
R
OMRONON--LINE
Global-- http://www.omron.com
USA -- http://www.omron.com/oei
Canada -- http://www.omron.com/oci
