Omron E3MC - User manual


RGB Color Sensor E3MC
RGB Color Sensor Detects Subtle
Color Differences—Most Advanced
Color Sensor In the Industry
LED light source insures ease of
operation and long life
No separate light source is required
Remote control of color setting from PC
or PLC
4-color memory
4-output models available
3 models: lensed, precision fiber-optic,
versatile standard fiber-optic
IP66
Rugged die-cast metal housing
Ordering Information

RGB COLOR SENSOR
Type Appearance Sensing distance Spot
diameter No. of outputs Output Part number
Lensed 0 50 100 12 mm 1NPN E3MC-A11
PNP E3MC-A41
60 ±10 mm 4NPN E3MC-MA11
(See Note.) PNP E3MC-MA41
Precision
fiber-optic
t
y
p
e
3mm 1NPN E3MC-X11
t
y
p
e
0 50 100 PNP E3MC-X41
The shape of the
a
m
p
l
i
f
i
e
r
s
e
c
t
i
o
n
i
s
(See Note.)
20 ±4mm 4NPN E3MC-MX11
amp
l
i
f
i
er sect
i
on
i
s
thesameasforthe
E3MC-(M)A

.PNP E3MC-MX41
General-
purpose Standard sensing distance Varies with the recom- 1NPN E3MC-Y11
u
r
o
s
e
fiber-optic
t
y
pe E32-CC200
(
SeeNote2.
)
5mm
t
h
e
r
e
c
o
m
-
mended
fiber. PNP E3MC-Y41
t
y
e
E
3
2
T
1
6
(
S
e
e
N
o
t
e
2
.
)
f
i
b
e
r
.4NPN E3MC-MY11
E32-T16 200 mm PNP E3MC-MY41
Note: Refer to the
Specifications
section of this data sheet.
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E3MC
E3MC

ACCESSORIES (ORDER SEPARATELY)
Item Appearance Description Part number (length)
Sensor cable (2-m
cable is included with
the E3MC)
Replacement cable E39-C1 (2M)
5-meter cable E39-C1 (5M)
Mounting bracket -- -- -- Used for die-cast body mounting
(See Note.) E39-L114
-- -- -- Used for DIN-rail mounting E39-L115
Note: Included with sensor.
Specifications
Type Lensed Precision fiber-optic type General-purpose fiber-optic type
y
E3MC-A  1, E3MC-MA  1E3MC-X  1, E3MC-MX  1E3MC-Y  1, E3MC-MY  1
Light source Red (680 nm), green (525 nm), and blue (450 nm) LEDs
Sensing distance 60±10 mm 20±4mm Varies with the recommended
f
i
b
e
r
R
e
f
e
r
t
o
E
n
g
i
n
e
e
r
i
n
g
D
a
t
a
Spot diameter 12 dia. 3dia.
f
iber. Re
f
er to Engineering Data
for details.
Supply voltage 12 to 24 VDC±10%, ripple (p-p) 10% max.
Current consumption 100 mA max.
Output Load current: 100 mA max.
NPN open collector output with a maximum residual voltage of 1.2 V for the E3MC-(M)A11, E3MC-(M)X11,
and E3MC-(M)Y11.
PNP open collector output with a maximum residual voltage of 2.0 V for the E3MC-(M)A41, E3MC-(M)X41,
and E3MC-(M)Y41.
L.O./D.O., switch selectable
Response time 1-output model:
Standard mode: 3 ms max.
High-speed mode: 1 ms max. (switch selectable)
4-output model:
Standard mode: 6 ms max.
High-speed mode: 2 ms max. (switch selectable)
Timer function 40-ms OFF-delay timer (ON/OFF switch selectable)
Color detection Four colors stored in teaching operation with manual threshold level adjustments.
Color detection mode Mode C: RGB ratio detection; adapts to changes in conditions
Mode I: RGB light intensity detection; highest precision Switch selectable
Mode selection E3MC-
 11/-  41
Mode A (Factory-set) Mode B (for remote teaching)
Output (white)
Not used (gray)
Bank selection input 1 (yellow)
Bank selection input 2 (green)
External synchronous input (pink)
VCC (brown)
0 V (blue)
Colors in parentheses are lead wire colors.
Output (white)
Answer-back output (gray)
Remote control input (yellow)
Not used (green)
External synchronous input (pink)
VCC (brown)
0 V (blue)
Colors in parentheses are lead wire colors.
E3MC-M  11/-  M41
Mode A (Factory-set) Mode B (for remote teaching)
Output 1 (white)
Output 2 (gray)
Output 3 (yellow)
Output 4 (green)
External synchronous input (pink)
VCC (brown)
0 V (blue)
Colors in parentheses are lead wire colors.
Output 1 (white)
Output 2 (gray)
Output 3 (yellow)
VCC (brown)
0 V (blue)
Colors in parentheses are lead wire colors.
Answer-back output (green)
Remote control input (pink)
3 outputs
(This table continues on the next page.)
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E3MC E3MC
Specifications Table -- continued from previous page
Type Lensed Precision fiber-optic type General-purpose fiber-optic type
y
E3MC-A

1, E3MC-MA

1E3MC-X

1, E3MC-MX

1E3MC-Y

1, E3MC-MY

1
Remote control input
(See Note 1.)
(mode B only)
The following control is performed according to the control signal input.
E3MC-

11/-

41
Bank selection, remote teaching, or threshold selection
E3MC-M

11/-M

41
Channel selection, remote teaching, or threshold selection
Answer-back output
(mode B only)
Load current: 100 mA max.
NPN open collector output with a residual voltage of 1.2 V max.
E3MC-(M)A11/-(M)X11/-(M)Y11
PNP open collector output with a residual voltage of 2.0 V max.
E3MC-(M)A41/-(M)X41/-(M)Y41
External synchronous
input Response time: 1 ms max. (The 4-output model is not available in mode B.)
Color detection 4 banks selectable (either by bank selection input or by using the SELECT button)
Input response time for bank selection: 50 ms max.
Indicator Operation indicator (orange LED), 4-level bank indicator (green LED, See Note 3.), 7-level threshold
indicator (red LED), 8-level detection indicator (green LED), and four channel indicators (orange LED, See
Note 4.)
Protection Protection from reversed power supply connection and output short-circuit
Ambient light immunity Incandescent lamp: Illumination on optical spot: 3,000

xmax.
Sunlight: Illumination on optical spot: 10,000

xmax.
Ambient temperature Operating: --25°Cto55
°C(--13 °F to 131°F) with no icing
Relative humidity Operating: 35% to 85% (with no condensation)
Permissible fiber
bending radius --- 10 mm min. Varies with the type of selected fiber (see specific fiber
specifications)
Insulation resistance 20 MΩmin. (at 500 VDC)
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min
Vibration resistance 10 to 55 Hz, 1.0-mm double amplitude or 150 m/s2(approx. 15G) for 2 hrs each in X, Y, and Z axis.
0.75-mm double amplitude or 100 m/s2(10G) when using a Mounting Bracket.
Shock resistance 500 m/s2(approx. 50G) for 3 times each in X, Y, and Z axis.
300 m/s2(30G) when using a Mounting Bracket.
Enclosure rating IEC IP66 (with protective cover in place)
Material Case: Zinc die-cast
Cover: PES Case: Zinc die-cast Cover: PES
Fiber head: ABS
Case: Zinc die-cast
Cover: PES
Weight (with 2-m cable) Approx. 350 g Approx. 400 g Approx. 350 g
Note: 1. Refer to
Remote Teaching
.
2. Definition of Sensing Distance
Refer to the following table and the diagram to the
right.
Item E3MC-(M)A

E3MC-(M)X

Color discrimination
mode Mode C
Response time Standard mode
Tolerance (θ)15°10°
Detectable colors 11 standard colors
E3MC-(M)X 
Fiber Head
Sensing target
E3MC-(M)A 
Sensing target
3. 1-output models only: E3MC-A

/-X

/-Y

4. 4-output models only: E3MC-MA

/-MX

/-MY

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E3MC
E3MC
Application Examples

DETECTING INTERNAL YELLOW
RESIN PLATES OF A BATTERY

PATTERN POSITIONING

DETECTING LABELS

DISCRIMINATING FRONT AND BACK
SIDES OF OBJECTS

STANDARD SENSING OBJECTS
Color
(11 standard colors) Munsell color notation (See Note.)
White N9.5
Red 4R 4.5/12.0
Yellow/red 4YR 6.0/11.5
Yellow 5Y 8.5/11.0
Yellow/green 3GY 6.5/10.0
Green 3G 6.5/9.0
Blue/green 5BG 4.5/10.0
Blue 3PB 5.0/10.0
Blue/purple 9PB 5.0/10.0
Purple 7P 5.0/10.0
Red/purple 6RP 4.5/12.5
Note: Munsell Color Notation: A color classification system that assigns three values to each color: Hue, Value, and Chroma. System
was developed by Albert Munsell and published in 1905.
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E3MC E3MC
En
g
ineerin
g
Data

SENSING DISTANCE VS.
COLOR DIFFERENCES
(TYPICAL)

ANGLE
CHARACTERISTICS
(TYPICAL)

ANGLE
CHARACTERISTICS
(WHEN TEACHING AT
AN INCLINATION OF 15

)
Sensing distance (mm)
Detection level
Angle (°) Angle (°)
Detection
level Detection
level
Detection level
White
Red
Yellow/red
Yellow
Yellow/green
Green
Blue/green
Blue
Blue/purple
Purple
Red/purple
Sensing target:
Blue/Green
30 x 27 mm
Sensing target:
Blue/Green
30 x 27 mm
E3MC-(M)A

(X Direction)E3MC-(M)A

E3MC-(M)A

(Y Direction)

SENSING DISTANCE VS.
COLOR DIFFERENCES
(TYPICAL)

ANGLE
CHARACTERISTICS
(TYPICAL)

ANGLE
CHARACTERISTICS
(WHEN TEACHING AT
AN INCLINATION OF 10

)
Sensing distance (mm)
Angle (°) Angle (°)
Detection
level Detection
level
Detection level
Detection level
White
Red
Yellow/red
Yellow
Yellow/green
Green
Blue/green
Blue
Blue/purple
Purple
Red/purple
Sensing target:
Blue/Green
30 x 27 mm
Sensing target
Blue/Green
30 x 27 mm
E3MC-(M)X

E3MC-(M)X

(X Direction) E3MC-(M)X

(Y Direction)

GENERAL-PURPOSE FIBER-OPTIC TYPE
Recommended Fiber: Diffuse Fiber-Optic
The following optical fibers are recommended for use with the
E3MC-(M)Y

.
Part number Sensing distance (See Note 1.)
E32-DC200 5mm
E32-CC200
(See Note 2.) 5mm
E32-D32L
(See Note 3.) 4.5 mm
E32-D11L 5mm
Note: 1. The E3MC-(M)Y

discriminates eleven colors at the
above distances. For a typical example, nine colors are
discriminated at a sensing distance of 12 mm.
2. The fiber to be inserted into the emitter is indicated
with white lines. Insert the amplifier fiber into the lower
emitter section.
3. The fiber to be inserted into the emitter is indicated
with dotted yellow lines. Insert the amplifier fiber into
the lower emitter section.
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E3MC
E3MC
Sensing Distance of a Diffuse Fiber
Sensing distance
Sensing target
E32-DC200, etc.

RECOMMENDED FIBER: THROUGH-
BEAM FIBER
The following optical fibers are recommended for use with the
E3MC-(M)Y

.
Part number Sensing range (See Note.)
E32-TC200 30 mm
E32-T11L 60 mm
E32-T16 200 mm
E32-T17L 1.1 m
Note: The E3MC-(M)Y

discriminates red, blue, and yellow
films at the above distances.

AVAILABLE OPTICAL FIBERS
In addition to the previous recommended optical fibers, the following optical fibers are available for the E3MC-(M)Y

. Refer to the
E3X-NH Datasheet (E258-E1)
for the following optical fibers in detail. Optical fibers other than the following are not available.
Part number Sensing method Remarks
E32-TC200A Through-beam Not different from
t
h
E
3
2
T
C
2
0
0
i
E32-TC200B
g
the E32-TC200 in
o
p
t
i
c
a
l
E32-TC200C op
t
i
ca
l
characteristics.
E32-TC200D
c
h
a
r
a
c
t
e
r
i
s
t
i
c
s
.
E32-T12L Not different from
the E32-T11L in
optical
characteristics.
E32-T14 ---
E32-T11
E32-T11R Through-beam
(R1 fiber) ---
Part number Sensing method Remarks
E32-DC200B Diffuse Not different from
t
h
E
3
2
D
C
2
0
0
i
E32-DC200C the E32-DC200 in
o
p
t
i
c
a
l
E32-DC200D op
t
i
ca
l
characteristics.
E32-D12
c
h
a
r
a
c
t
e
r
i
s
t
i
c
s
.
E32-D11
E32-D11R Through-beam
(R1 fiber) ---
E32-G14 Groove ---

OPERATING RANGE CHARACTERISTICS (TYPICAL)
E32-DC200 E32-CC200 E32-D32L
Distance Y (mm)
Distance Y (mm)
Distance Y (mm)
Sensing target: Blue/Green 38 x 38 mm Sensing target: Blue/Green
38 x 38 mm Sensing target: Blue/Green 38 x 38 mm
Distance X (mm) Distance X (mm) Distance X (mm)
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E3MC E3MC
E32-D11L Sensing Target:
Red, Blue, and Yellow Films
Distance Y (mm)
Sensing target: Blue/Green 38 x 38 mm
Sensing target: Film in Red (rosco/UX, scarlet)
Sensing target: Film in Blue (rosco/UX, skyblue)
Sensing target: Film in Yellow (rosco/UX, straw)
The above color films are made by the rosco company.
Distance X (mm) Distance X (mm)
E32
-TC200
E32
-T11L
E32
-T16
E32
-T17L
Sensing Target: Bottle
E32-T17L

CHROMATIC SENSITIVITY (TYPICAL)
Sensing target: 63-dia green bottle
Sensing target: 60-dia brown bottle
Sensing target: 63-dia dark-brown
bottle
Green
bottle
Brown
bottle
Dark-
brown
bottle
Distance X (mm)
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E3MC
E3MC
Nomenclature
Operation Indicator (Orange)
Illuminated when output is ON.
Under mode B (single-output
models), the indicator will be
illuminated when mode B is
active or when the mode selec-
tor is set to TEACH.
Bank Indicator (Green)
1-channel models. Displays
selected bank.
TEACH Button
Stores target color. On 4-channel
models, used to check the number
of channels that are indicated by
both the operation indicator and
channel indicator.
Detection Level Indicator (Green)
Displays similarity level between
registered and detectable colors.
Threshold Indicator (Red)
Displays threshold level.
SELECT UP Button, SELECT DOWN Button
Bank selection
Threshold adjustment
Mode Selector
Selects TEACH, ADJ, or RUN mode.
Function Switch (see details below)
Color discrimination mode selection
Response time selection
OFF-delay timer setting
Conformity/Non-conformity output selection
(See glossary—Light/Dark Operate)

E3MC ALL MODELS
Tolerance #1
Tolerance #7
Channel Indicator (Orange)
4-channel models. Displays
selected channels. Illuminated
when the output of each channel
is ON.
Color Discrimination Mode Selection (Mode C is Recommended for Normal Applications)
Mode C: Color discrimination is performed according to R (red), G (green), and B (blue) ratio of the reflection light even
if the sensing objects fluctuate up and down within the rated sensing range.
Mode I: Color discrimination is performed according to RGB light intensity of reflection light. This mode ensures more
delicate color discrimination than mode C.
Response Time Selection
3 ms (6 ms): The E3MC can stably detect minute differences of color. Set the response time to 3 ms for usual
applications.
1 ms (2 ms): The E3MC will be in quick-response operation. Set the response time to 1 ms if high-speed response is
required.
OFF-delay Timer Setting
---: No OFF-delay timer is set.
TMR: A 40-ms OFF-delay timer is set for control output.
Conformity/Non-conformity Output (See glossary—Light/Dark Operate)
=: Output is ON when the detected color coincides with the registered color.
≠: Output is ON when the detected color does not coincide with the registered color.
1ms
(2 ms)
(6 ms)
3ms
Note: Figures shown in parentheses are for the 4-output models.
Function Switch
The following settings are possible in RUN or ADJ mode. (Each pin of the function switch is factory-set to the upper position.)
C
TMR
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E3MC E3MC
Operation

OUTPUT CIRCUITS
Connector Pin Arrangement For All Models
Note: Pin 8 is not used.
E3MC-  11 with NPN Output (1-output Models)
Brown
White
Yellow
Green
Pink
Blue
Load Control output
Not used/Answer-back
output
Bank selection input 1/
Remote control input
Bank selection input 2/
Not used
12 to 24 VDC
Gray Load
External synchronous
input
E3MC-M  11 with NPN Output (4-output Models)
12 to 24 VDC
Control
output
Load
External
synchronous input
Brown
White
Yellow
Load
Load
Load
Control
output
Control
output
Control
output
Gray
Green
Pink
Blue
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E3MC
E3MC
E3MC-  41 with PNP Output (1-output Models)
Load
Brown
Green
Pink
White
Blue
Control
output
12 to 24 VDC
Yellow
Gray
Load
Note used/Answer
back output
Bank selection input 1/
Remote control input
Bank selection input
2/Not used
External synchronous input
12 to 24 VDC
Load
Load
Load
Load
Control
output
Control
output
Control
output
Control
output
Brown
White
Yellow
Gray
Green
Pink
Blue
External
synchronous input
E3MC-M  41 with PNP Output (4-output Models)

SETTINGS
E3MC-A  /E3MC-X  ---- Single-Output Models
1. Bank Selection
Set the Mode Selector to the TEACH mode, and then select the BANK using the SELECT button.
Then press SELECT buttons,
scrolling through banks 1 -- 4.
To select banks 1 -- 4, first slide 3-position
switch to “TEACH.”
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E3MC E3MC
2. Color Registration
Position the registered object at the
detection point and press the TEACH
button.
All the red threshold indicators
will flash if the E3MC receives
excessive light.
All the detection level
indicators are illuminated.
Registered object
OK
No Good
Sensor
3. Threshold Adjustment (If Required)
Sensor
Sensing target
Press the SELECT button in ADJ mode with or without
the object to be detected positioned at the detection
point.
 Detection Level and Tolerance
As the detected color becomes closer to the registered
color, the number of illuminated detection level indicators
increases. When the E3MC is in conforming output mode,
the control output of the E3MC will be ON if the detection
level exceeds the threshold level and OFF if the detection
level does not exceed the threshold level.
Set the threshold to a higher level for highly-precise color
discrimination and to a lower level to ignore minor tint
differences or dirt retention.
Detection level
Operation indicator
illuminated:
Control output ON
Tolerance
Threshold
value
Detection level
Threshold
value
Operation indicator
not illuminated:
Control output OFF
4. Operation
Detection operation is performed in RUN mode.
ON/OFF status of each bank is displayed on the
bank indicators.
Bank Indicators
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E3MC
E3MC
E3MC-MA  /E3MC-MX  ---- 4-Output Models
1. Channel Selection
Set the Mode Selector to the TEACH mode.
Then select the channel using the SELECT button.
2. Color Registration
Position the registered object at the detection point
and press the TEACH button.
All the red threshold
indicators will flash if
registration has not been
completed.
All the detection level
indicators are illuminated.
Registered object
OK
No Good
Sensor
3. Threshold Adjustment (If Required)
Sensor
Sensing object
Press the SELECT button in ADJ mode with or without the object
to be detected positioned at the detection point. The channel
selected in the TEACH mode or RUN mode will become the
channel for the ADJ mode.
 Detection Level and Tolerance
As the detected color becomes closer to the registered color, the
number of illuminated detection level indicators increases. When
the E3MC is in conforming output mode, the control output will be
ON if the detection level exceeds the threshold level and OFF if
the detection level does not exceed the threshold level.
Set the threshold to a higher level for highly-precise color
discrimination and to a lower level to ignore minor tint differences
or dirt accumulation.
Detection level
Operation
indicator:
illuminated
Control output:
ON
Tolerance
Threshold
value
Detection level
Threshold
value
Operation
indicator: Not
illuminated
Control output:
OFF
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E3MC E3MC
4. Operation
For indicating detection level and threshold value for other channels
Press the SELECT button.
For checking which channel
is indicated with the operation
indicator.
Press the
TEACH button.
Displays the channel whose detection
level is currently indicated in the
channel indicator for three seconds.
Displays the selected channel for
three seconds and indicates
detection level and threshold value
of the selected channel.
The detection operation is performed in RUN
mode. ON/OFF status of each channel is
displayed on the channel indicators. Doubly
displayed channels (operation indicator and
channel indicator) can be checked and
selected by pressing the TEACH button and
selected by pressing the SELECT button.

DETECTION LEVEL AND INDICATOR
Indicator
Detection
level 12345678

TECHNICAL GUIDE
If the E3MC does not detect metal or glossy objects accurately, change the mounting angle of the E3MC so that it will not receive regular
reflection light directly reflected from the objects.
The mounting angle of the E3MC-X  can be adjusted to approximately 10°with the mounting holes.
Object to be detected
Object to be detected
E3MC-X

E3MC-A

Note: To avoid malfunction, provide a cover to shut out direct
external light interference to the E3MC.
Sensing target
E3MC-(M)Y

(reflective optical fiber)
0to20
°
On the other hand, sensing targets such as metal or transparent
plastic cases may be detected by allowing regular reflection.
Detection of White, Gray, or Black Objects
When registering white, gray, or black objects, change the color
discrimination mode to “Mode I” to achieve a more stable color
discrimination.
External Light
The E3MC may malfunction if it directly receives external light
interference. Provide a cover to shut-out such external light
interference.
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E3MC
E3MC
Adjustment of Sensing Distance of General-purpose
Fiber-optic Type
Unlike the E3MC-A or E3MC-X, the E3MC-Y may require
adjustment of its sensing distance depending on the reflection
rate. This also applies to the through-beam type. Bring the fiber head as
close as possible to the workpiece
and conduct teaching.
Feed workpieces and
check if they are detected.
Excessive light. Move the
head away from the work-
piece and find a position
where teaching is accepted.
This position is the optimum
distance.
OK: All Detection Level
Indicators (green) illuminated.
NG: All Threshold
Indicators (red)
flashing.

REGISTERED COLOR SELECTION (BANK SELECTION INPUT)
Single-Output Models ONLY (E3MC-A 
 
/E3MC-X 
 
/E3MC-Y 
 
)
The E3MC in RUN mode offers bank selection with external inputs by combining bank selection input 1 (yellow) and input 2 (green). The
selected bank is active when the indicator is illuminated.
NPN (E3MC-A11/-X11/-Y11)
Bank Input 1 Input 2
1OPEN OPEN
2GND OPEN
3OPEN GND
4GND GND
PNP (E3MC-A41/-X41/-Y41)
Bank Input 1 Input 2
1OPEN OPEN
2Vcc OPEN
3OPEN Vcc
4Vcc Vcc

EXTERNAL SYNCHRONOUS INPUT FUNCTION (See Note.)
The measurement results will be directly output to the control output if the input from the external synchronous input terminal (pink) is set
to OFF. The output will hold the previous status if the input of the external synchronous input terminal is set to ON. External synchronous
input is valid in RUN or ADJ mode.
Condition NPN (E3MC-
 11) PNP (E3MC-  41)
ON (Status on hold) GND Vcc
OFF (Result output) OPEN OPEN
External synchronous input
Control output
Sensing target
Discrimination result
Same color Different color Same color Same color
Output on hold Output on hold
This status can be on
hold by an external
synchronous input. It
will be released by
setting the external
synchronous input to
OFF.
This status can be on
hold so that unwanted
color objects can be
ignored while they are
passing the sensing
range.
Note: External Synchronous Input: Latches sensor output in existing state when ESI is on. For example, if sensor output is on when ESI
is on, the output(s) will remain on until ESI is turned off, regardless of target presence or absence.
For NPN models, ESI is turned on by connections to 0V.
For PNP models, ESI is turned on by connections to +V.
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E3MC E3MC

REMOTE TEACHING (REMOTE CONTROL FUNCTION)
Mode Setting
When using the remote control function of the Sensor for remote
teaching, be sure to set the Sensor to mode B.
Setting Method
Apply power to the Sensor while pressing the SELECT DOWN
button and TEACH button together.
Checking Method
Mode A or B of the E3MC will be displayed for 3 s after mode
setting. When the mode selector is set to TEACH, the mode can
be checked from the operation indicator. The indicator will be lit
when the mode is set to B.
Mode A:
Operation indicator
is OFF.
Mode B:
Operation indicator
is ON.
Note: 1. The Sensor is set to mode A before shipping.
2. The current mode selected does not change after the
Sensor is turned OFF.
3. The remote control function is available in RUN mode
and ADJ mode only.
4. The E3MC-M  has three outputs in mode B and no
external synchronous input will be accepted.
5. The same switching procedure can be used for chang-
ingtomodeA.
Remote Teaching Method
Function 1: Remote teaching with manual input through an
external connection
Short-circuit the remote control input for 1.5 s or more to either of
the following terminals according to the E3MC model.
NPN type
(E3MC-  11) Short-circuit to GND (blue) terminal.
PNP type
(E3MC-  41) Short-circuit to Vcc (Brown) terminal.
Function 2: Remote control of teaching and bank selection
through the PLC or PC
Input one of the following signals as a remote control input. There
will be an answer-back output for 0.3 s if the signal is correctly
received.
No. Control signal E3MC-

E3MC-M

1Bank 1
selected. Channel 1 selected.
2Bank 2
selected. Channel 2 selected.
3Bank 3
selected. Channel 3 selected.
4Bank 4
selected. Not used.
5Teaching of
selected
bank.
Teaching of
selected
channel.
The following is an example of a timing chart of teaching after
bank selection.
TIM000 set value
No.1: 0003
No.2: 0006
No.3: 0009
No.4: 00012
No.5: 00015
Input: 00000
Output: 00100
Others: Work bits
TIM000
#XXXX
00100
00100
00000
TIM000
END
The following is an example of a timing chart of teaching after bank selection.
Remote control input
Answer-back output
ON
OFF
ON
OFF
Input detection.
Operates in
bank 2.
Bank 1 designated.
An interval of
0.6 s min.
Bank
select-
ing.
Sensing
restarts.
Teaching specified
in bank 1.
Answer-back output with
normal signal reception.
Teach-
ing.
Answer-back output with teaching OK.
(No output if teaching fails.)
Sensing
restarts
Input detection.
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E3MC
E3MC
Function 3: Remote control of threshold adjustments
through the PLC or PC
Input either one of the following signals as remote control input.
There will be an answer-back output for 0.3 s if the signal is
correctly accepted.
No. Control signal All E3MC models
6Threshold 1 selected.
7Threshold 2 selected.
8Threshold 3 selected.
9Threshold 4 selected.
10 Threshold 5 selected.
11 Threshold 6 selected.
12 Threshold 7 selected.
Threshold and Display
Threshold 1
Threshold 2
Threshold 3
Threshold 4
Threshold 5
Threshold 6
Threshold 7
The following is an example of ladder programming for setting
control signals. Full control of the E3MC is possible using this
function.
TIM000, TIM001, TIM002
set values
(XXXX, YYYY, ZZZZ)
No.1: (0000, 0000, 0003)
No.2: (0000, 0000, 0006)
No.3: (0000, 0000, 0009)
No.4: (0000, 0000, 00012)
No.5: (0000, 0000, 00015)
No.6: (0003, 0003, 0003)
No.7: (0003, 0006, 0003)
No.8: (0003, 0009, 0003)
No.9: (0003, 0003, 0006)
No.10: (0003, 0006, 0006)
No.11: (0003, 0003, 0009)
No.12: (0006, 0003, 0003)
Input: 00000
Output: 00100
Others: Work bits
TIM000
#XXXX
05000
05000
00000
END
TIM001
#YYYY
05001
05001
T000
TIM000
TIM001
TIM002
#ZZZZ
05002
05002
T001 TIM002
00100
05002
05000
Note: 1. The permissible error of each signal pulse is ±0.1 s
max.
2. A minimum interval of 0.6 s is required between
signals.
3. Threshold 4 is set after teaching.
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E3MC E3MC
Dimensions
Unit: mm (inch)

RGB COLOR SENSORS
E3MC-A 
E3MC-MA 
Receiver
Emitter
Optical axis
Four, M5 holes on both
sides (depth: 5.5)
M12
connector
Four, M5 holes (depth: 5.5)
Mounting Dimension
Bottom Mounting
Two, 5.5-dia holes
Four, 5.5-dia holes
Two, M2.6 x 6
30.4
(1.19)
30
(1.18) 60 (2.36) 39
(1.53) 28
(1.10)
98 (3.85)
80 (3.14)
43
(1.69) 28
(1.10)
28
(1.10)
28
(1.10)
21 (0.82)
15.2
(0.59)
40.2
(1.58)
53.2
(2.09)
Side Mounting
15.2 (0.60)
17.3
(0.68)
Receiver
Emitter
Sensing face
(9.1 x 22.9)
Two, R1.65
mounting holes
Optical axis
3.3-dia. mounting holes
Sensing head
(heat-resistant ABS) 6-dia. optical fiber
(standard length: 1 m)
Fiber Head
Mounting Dimensions
Four, M5 holes on both
sides (depth: 5.5)
M12 connector
Four, M5 holes (depth: 5.5)
For Side Mounting --
Amplifier Unit
Bottom Mounting
Two, M2.6 x 6
Two, 5.5-dia holes
Four, 5.5-dia holes
Two, M3 holes
10.4
(0.41)
30.4
(1.20)
30
(1.18)
4
(0.16)
20
(0.79) 30
(1.18) 11.5 (0.45)
30
(1.18)
15.25
(0.60)
11.5
(0.45)
E3MC-X 
E3MC-MX 
8.9
(0.35)
8.5
(0.33)
98
(3.86)
80
(3.15)
39
(1.54) 28 (1.10)
28
(1.10)
43
(1.69)
40.2
(1.58)
53.2
(2.09)
15.2
(0.59)
28
(1.10)
28
(1.10)
21 (0.82)
Mounting Dimensions
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E3MC
E3MC
Unit: mm (inch)
E3MC-Y 
E3MC-MY 
Four, M5 holes on both
sides (depth: 5.5)
M12 connector
Four, M5 holes (depth: 5.5)
Mounting Dimensions
(Amplifier Unit)
Side Mounting
Bottom Mounting
Two, M2.6 x 6
Two, 5.5-dia holes
Four, 5.5-dia holes
Two, 2.4 dia.
Receiver section
Emitter section
30.4
(1.20)
98
(3.86)
30
(1.18)
12.6
(0.50)
15.2
(0.60)
21 (0.83) 53.2
(2.09)
80
(3.15)
39
(1.54) 28 (1.10)
7.9
(0.31)
28
(1.10)
43
(1.69)
28
(1.10)
28
(1.10)
21 (0.83)
40.2
(1.58)
15.2
(0.60)
21 (0.83)

ACCESSORIES
Sensor I/O Connector
E39-C1 2M
E39-C1 5M
6
(0.25)
dia.
8.8
(0.35)
dia. 10.5
(0.41)
dia.
L
Standard length: 2 m
(Optional length: 5 m)
1.5
(0.06)25.5
(1.0)
27
(1.06) 42
(1.65)
12
(0.47) 20
(0.79)
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E3MC E3MC
E39-L114 DIN Rail Side-Mounting Brackets
Mounting Holes
5.2
(0.20)
2-R5
4-R2.6
6.8
(0.27)
6.8
(0.27)
11
(0.43) 28
(1.10)
10
(0.39)
22
(0.87)
E39-L115 DIN Rail Mounting Bracket
DIN-rail
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E3MC
E3MC
Installation

PLUG
Sensor I/O Connector
E39-C1 2M
E39-C1 5M
Internal Wiring
White
Brown
Green
Yellow
Pink
Blue
Lead wire color
Connection
Pin no. Wire color Purpose
E
3
M
C
-

1
1
o
r
E
3
M
C
-

4
1
E
3
M
C
-
M

1
1
o
r
E
3
M
C
-
M

4
1
E
3
M
C
-

11 or
E
3
M
C
-

41
E
3
M
C
-
M

11 or
E
3
M
C
-
M

41
1White Output Output 1
2Brown Power supply (+V)
3Green Bank selection input 2 Output 4
4Yellow Bank selection input 1 Output 3
5Gray -- -- -- Output 2
6Pink External synchronous input
7Blue Power supply (0V)

FIBER UNIT
Tightening Torque
The Fiber Unit must be tightened to a maximum torque of 0.54 N

m (5.4 kgf

cm or 4.85 in

lbs).
Mounting
When Fiber Units are mounted facing each other, you must adjust the optical axes of the Fiber Units to avoid any mutual interference.
Handling the Fiber Unit
Sensor head
20 mm min.
20 mm min.
Amplifier Unit
Amplifier Unit
Sensor head
Correct
Incorrect
•Do not apply excess force to the Fiber Unit.
Fiber Unit
Nylon wire holder
Correct
Incorrect
•The Fiber Head could be broken by excessive vibration.
To prevent this, use a one-turn loop to absorb vibration,
as shown here:
A one-turn loop can
absorb vibration.
Tape
•Do not pull or press the Fiber Unit.
•Do not bend the Fiber Unit beyond the permissible bend-
ing radius provided in Ratings/Characteristics.
•Do not bend the edge of the Fiber Unit.
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