Color Mark Sensor with Teach Function

E3M-V

High-speed Registration Mark

Detection

Fast 50 µs response

Pushbutton programming for quick
setup

Remote control setup for on-the-fly
adjustments

Green LED detects yellow-on-white and
other difficult color combinations

Stable operation even on shiny surfaces

IP67 watertight construction

Ordering Information

SENSOR

Shape

Sensing

distance

Light source

Output

Spot size (W x H) and

orientation

Part number

(Quick-disconnect)

Part number

(Pre-leaded)

10 ±3 mm

Green LED

(525 nm)

NPN

1 x 4 mm

E3M-VG11

E3M-VG17

4 x 1 mm

E3M-VG21

E3M-VG27

PNP

1 x 4 mm

E3M-VG16

E3M-VG12

4 x 1 mm

E3M-VG26

E3M-VG22

MOUNTING BRACKETS

Order mounting brackets separately. These are not included with the sensor.

Shape

Part number
E39-L131

E39-L132

E3M-V

CONNECTING CABLES

Shape

Type

Conductors

Length

Part number

Straight

4-wire

2 meter (6.56 ft)

Y96E43SD2

5 meter (16.40 ft)

Y96E43SD5

L-shaped

2 meter (6.56 ft)

XS2F-D422-D80-A

5 meter (16.40 ft)

XS2F-D422-G80-A

Specifications

RATINGS/CHARACTERISTICS

Part number

E3M-VG11

E3M-VG21

E3M-VG16

E3M-VG26

Method of detection

Diffuse type

Supply voltage

10 to 30 VDC, 10% ripple max. (p--p)

Current consumption

100 mA max.

Sensing distance

10 ± 3 mm

Spot size (W x H) and orientation 1 x 4 mm

4 x 1 mm

1 x 4 mm

4 x 1 mm

Spot size (W x H) and orientation 1 x 4 mm

4 x 1 mm

1 x 4 mm

4 x 1 mm

Light source (wavelength)

Green LED, 525 nm

Output

NPN open collector

PNP open collector

Output

Residual voltage: 1.2 V max.

Residual voltage: 2 V max.

100 mA load, 30 VDC max.
Light-ON/Dark-ON switch selectable
Short-circuit protected

Response time

ON: 50 µs max.

OFF: 70 µs max.

Remote control input

(See Note.)

ON: Short-circuited to 0 or 1.5 V max., leakage

current of 1 mA max.

OFF: Open or V

--1.5 V to V

CC,

leakage

current of 0.1 mA max.

ON: V

--1.5 V to V

CC,

leakage current of

3 mA max.

OFF: Open or 1.5 V max., leakage current of

0.1 mA max.

Remote control output

30 VDC max., 100 mA max.

Remote control output

(See Note.)

NPN open collector, residual voltage: 1.2 V max. PNP open collector, residual voltage: 2 V max.

Bank selection

Two banks selectable. Available for remote control only.

Circuit protection

Protection from reversed polarity connection and load short-circuit

Ambient light immunity

Incandescent lamp: 3,000 x max. Sunlight: 10,000 x max.

Ambient

Operating

--20°C to 55°C (--4°F to 131°F) with no icing

Ambient

temperature

Storage

--30°C to 70°C (--22°F to 158°F) with no icing

Ambient humidity

Operating

35% to 85% RH with no condensation

Ambient humidity

Storage

35% to 95% RH with no condensation

Insulation resistance

20 M min. (at 500 VDC)

Dielectric strength

1,000 VAC, 50/60Hz, 1 min.

Vibration resistance

10 to 55 Hz, 1-mm double amplitude or 150 m/s

for 2 hrs each in X, Y, and Z axes

With bracket attached: 0.75-mm double amplitude or 100 m/s

Shock resistance

500 m/s

3 times each in X, Y, and Z axes. With bracket attached: 300 m/s

Enclosure rating

IP67 IEC60529 (with cover properly closed)

Connection method

Quick-disconnect M12

Weight

Approx. 100 g (with carton)

Material

Case:Polybutylene terephthalate

Lens: Acrylic (PMMA)

Included

Instruction manual

Note: Remote control input and answer-back output share the same signal line.

E3M-V

Engineering Data

SENSING DISTANCE VS.

INCIDENT CHARACTER-

ISTICS (TYPICAL)

E3M-VG1j

ANGLE VS. INCIDENT

CHARACTERISTICS

(X DIRECTION)

E3M-VG1j/VG2j

ANGLE VS. INCIDENT

CHARACTERISTICS

(Y DIRECTION)

E3M-VG1j/VG2j

I
n
c
i
denc

(
%

)

Distance (mm)

Angle (°)

I
n
c
i
denc

(
%

)

I
n
c
i
denc

(
%

)

COLOR SENSING BACKGROUND VS.

COLOR MARK

E3M-VGjj

White

Yellow

green

Red Yellow

red

Yellow

Green Blue

green Blue Purple

Red

purple Black

White

Red

Yellow

red
Yellow

Green

yellow
Green

Black

Red

purple

Purple

Blue

green

: Detectable n: Detectable but unstable X: Not detectable

DIFFERENCES IN INCIDENT

BY COLOR

I
n
c
i
denc

(
%

)

i
t
e

Red

Y
e
llow

r
ed

Y
e
llow

g
r
een

r
een

l
ue

een

u
e

l
e

Red

pur

ple

a
c
k Color

E3M-V

OPERATING PROCEDURE

Adjustment Steps

1. Install, wire, and turn ON the E3M-V.
2. Perform teaching (mark registration). Refer to Mark Registration (Teaching).
3. Make fine adjustments of the threshold level if necessary. Refer to Threshold Level Adjustments.
4. Check that the mode selector is set to RUN.

Mark Registration (Teaching)

Refer to the following for ideal teaching.

Application
The base has a

color pattern. The

mark and base are

clearly different in

color.

The base has no

color pattern. The

mark and base are

slightly different in

color.

The base has no

color pattern.

Remote teaching

with no positioning

is desired.

One-point teaching

Two-points

teaching

Auto-teaching

The default level is

set and the output

is ON when the

mark is detected.

The threshold level

is set between the

color of the mark

and base. The

output is ON when

the mark is

detected.

The threshold level

is set between

color of the mark

and base. The

output is ON when

the mark (i.e., the

color with shorter

passing time) is

detected.

Refer to the following for each teaching method. Remote one- or

two-point teaching is possible. Refer to Remote Control Function.

One-point Teaching

Set the mode selector to TEACH.

Locate the mark to the sensing position and press the SET

button. Then all the red threshold indicators are ON.

Mark

Sensor

Base

Push

Red threshold indicators are ON

Set the mode selector to RUN. The output will be ON

whenever the set mark is detected.

Note: By teaching on the base, reversed output as shown above

(base: ON, mark: OFF) can be obtained.

Two-point Teaching

Set the mode selector to TEACH.

Locate the mark to the sensing position and press the SET

button. All the red threshold indicators will turn ON.

Mark

Sensor

Push

Red threshold indicators are ON.

Base

Mark

Sensor

Push

If teaching is successful, move the mark and press the

SET button at the base.

If teaching is successful, all the green detection level

indicators are ON.

If teaching is unsuccessful, all the red threshold level

indicators flash.

Teaching

is OK

Green detection level

indicators are ON.

Teaching is NG

All the red threshold level

indicators will flash if there

is no difference in incident.

Base

If teaching is successful, set the mode selector to RUN to

complete the teaching operation. If teaching is

unsuccessful, restart from the above step 2.

Note: Follow the above steps so that the output will be turned

ON whenever the mark is detected. By taking the opposite
steps, the output will be turned OFF whenever the mark is

detected and turned ON whenever the base is detected.

E3M-V

ADJUSTMENT STEPS

Auto-teaching

1. Check that the mode selector is set to either RUN or ADJUST.
2. Input a 0.9-s pulse signal into the remote control I/O terminal. (See Note.)
3. Auto-teaching starts when the mark is moved. When the mark passes six times, auto-teaching completes.
·

If teaching is successful, answer-back output from the remote control I/O terminal will turn ON for 0.3 s.

If teaching is unsuccessful, no answer-back signal will be output. Readjust using two-point teaching.
(Teaching will be unsuccessful if there is no difference in incident between the mark and base.)

4. If the answer-back signal is ON, the whole teaching operation will be completed. The output will be turned ON whenever the mark

(i.e., the color with shorter passing time) is detected.

Note: Make sure that the input tolerance of each pulse is within ±0.1 s.

Auto-teaching Illustration

Remote control input/

Answer-back output

Incident

Auto-teaching

Teaching starts

Teaching completes and detection starts

Answer-back

Time

Mark (shorter passing time):

Output ON

Optimal threshold level set

Base: Output OFF

Dummy sampling (1st mark)

Sampling (5th mark)

Time

Example of Connection to Programmable Controller

Sensor

Remote control I/O

I/O Unit

Programmable Controller

Output

Input

Note: Be sure to connect the E3M-V to the Programmable Con-

troller as shown above.

Precautions when Using Automatic Teaching

Incorrect discrimination may be caused by automatic teaching in

the following cases. Use one-point or two-point teaching in such
cases.

Color patterns exist in the base.

Sensing objects change their positions.

Sensing objects have protrusions or surface level differences.

Threshold Level Adjustments

It is possible to make fine adjustments of the threshold level after

teaching. Such fine adjustments can be made remotely as well.

Refer to Remote Control Function.

Set the mode selector to ADJUST.

Select the upper or lower threshold setting with the thresh-

old selector. Whenever the SET button is pressed, the

threshold level will move. Two indicators will be lit together

when the threshold level is an even level.

The threshold level increases.

The threshold level decreases.

Lower

threshold

limit

Press

Upper

threshold

limit

Threshold

indicators

Threshold

level

After setting the level, set the mode selector to RUN.

E3M-V

Detection Level Indicator

The control output of the E3M-V will be turned ON if the detection
level exceeds the threshold level. The indication of the detection

level varies with the teaching method.

One-point Teaching
The upper and lower threshold values are set on the basis of the

mark and the detection level indicators indicate the degree of

color conformity to the mark's color.

Detection level

Output OFF

Output ON

Threshold

value

Mark

Output OFF

Detection

level indi-

cators

Operation

indicator

Threshold value

Threshold

value

Two-point or Auto-teaching
A single threshold value is set between the mark (registered first)

and the base (registered next). The detection level indicators

indicate the tolerance between the mark and base.

Detection level

Output OFF

Output ON

Threshold

value

Mark

Detection

level indi-

cators

Operation

indicator

Threshold value

Base

Remote Control Function (Bank Selection, Mark

Registration, and Threshold Adjustments)

Under Run Mode or Adjust Mode
The input of any of the signals listed in the following table into the
remote control I/O terminal allows remote control of the E3M-V.

When the signal is accepted, answer-back output will be turned

ON for 0.3 s. Only in the case of one-point teaching, however,

can the signal be manually input, provided that the input is ON for

1.5 s or more.

Timing Chart

Remote

control I/O

Sensor

operation

Input signal

Answer-back output: ON

only when the process

completes normally.

Detection restarts

Setting

change

Input discrimination

(1.8 s)

2.5 s min.

input

signal

2.0 s

0.3 s

Note: If signals are sent continuously, make sure that there is an

interval of 2.5 s between signal inputs as shown above.

E3M-V

Control Signals

No. Control signal

Function

Bank 1 is selected

(operation indicator OFF in

TEACH mode)

Bank 2 is selected

(operation indicator ON in

TEACH mode)

Auto-teaching

Two-point teaching

(1st and 2nd)

One-point teaching

(or input for 1.5 s min.)

Threshold level 1 is

selected.

Threshold level 3 is

selected.

Threshold level 5 is

selected.

Threshold level 7 is

selected.

Threshold level 9 is

selected.

Threshold level 11 is

selected.

Threshold level 13 is

selected.

Note: The input error of each signal pulse must be within ±0.1 s.

Ladder Program Example
Control signals are input by a ladder program as shown below.

Input: 00000

Output: 00100

Others: IR bits

TIM000, TIM001, and TIM002

set values

E3M-V

MOUNTING BRACKETS

E39-L131

E39-L132

Two,

4.2 dia.

Material: Stainless steel (SUS304)

(0.87)

5.5

(0.22)

23.5

(0.93)

11.5

(0.45)

2-R3.2

6.4 (0.25)

R34

15°

90° ±

0.1

2-R3.2

6.4

(0.25)

(1.38)

4-R1

R25

4-R2.1

25 ±

0.1

(0.98 ±

0.004

)

35.5

(1.40)

23.5

(0.93)

(1.77)

65.5

(2.58)

R25

4.2

(0.17)

4.2

(0.17)

25 ±

0.1

(0.98 ±

0.004

)

8.5 (0.33)

1.5

(0.06)

15°

90° ±

0.1

(0.87)

5.5

(0.22)

23.5

(0.93)

11.5 (0.45)

2-R3.2

6.4 (0.25)

R34

2-R3.2

6.4

(0.25)

1.5

(0.06)

23.5

(0.93)

11.5 (0.45)

8.5 (0.33)

(1.77)

25 ±

0.1

(0.98 ±

0.004

)

(0.39)

2-R2.2

4.4

(0.17)

E3M-V

Precautions

SAFETY

Observe the following precautions to ensure safety.

Do not use the Sensor in locations subject to flammable or
explosive gases.

Do not use the Sensor in water or conductive solution.

Do not disassemble, repair, or modify the Sensor.

Use the Sensor under proper power supply specifications

such as the use of AC or DC power supply.

Do not apply any voltage or current exceeding the rated level.

Be careful with the power supply polarities and wire correctly.

Connect the loads correctly.

Do not short-circuit both ends of loads.

INSTALLATION AND USE

Power Reset Time

Since the E3M-V is ready to detect objects from 100 ms max.

after the E3M-V is turned ON, operate the remaining devices

100 ms after the Sensor is turned ON. If power is supplied to the

E3M-V and the load independently, be sure to turn on the E3M-V

first.

Power OFF

The E3M-V may output a single pulse when the control power

supply is turned OFF. If the E3M-V is connected to a timer or

counter to which power is supplied from an independent power

supply, the E3M-V will be more likely to output a single pulse
when the control power supply is turned OFF. For this reason,

supply power to the timer or counter from the same power supply

for the E3M-V.

Power Supply Type

Supply voltage ripple must not exceed rated percentage.

Power Supply Connection

Be sure to ground the FG (frame ground) and G (ground)

terminals if a switching regulator is connected to the E3M-V to

avoid malfunction due to the switching noise of the switching
regulator.

WIRING

Cable

The cable can be extended up to 100 m provided that the

thickness of the cable is 0.3 mm

minimum.

The cable must not be bent repeatedly.

Do not pull cables with pulling forces exceeding 50N

(11.24 lb).

High-tension Lines

To avoid damage and malfunctioning due to induction noise, wire

sensor power lines in a separate conduit from any power lines or

high tension lines.

MOUNTING

Screw Tightening

Make sure that the casing is tightened to a maximum torque of
1.2 N S m.

Mounting Direction

When Sensors are mounted to face each other, make sure to
adjust the optical axes to avoid mutual interference.

EEPROM WRITE ERROR

An EEPROM error may result if power supply to the Sensor fails

or the Sensor is influenced by static noise, and the threshold

level indicators will flash. Perform the teaching and threshold

level setting of the E3M-V again.

M12 METAL CONNECTOR

Turn off the E3M-V before connecting or disconnecting the

metal connector.

Make sure to hold the connector cover when connecting or

disconnecting the metal connector.

Tighten the metal connector securely by hand. To avoid dam-
age, do not use any tool, such as pliers.

If the metal connector is not tightened securely, it may be
disconnected by vibration, and the proper degree of protec-

tion of the E3M-V may not be maintained.

Cat. No. CEDSAX4 11/01 Specifications subject to change without notice. Printed in U.S.A.

OMRON ELECTRONICS LLC

One East Commerce Drive

Schaumburg, IL 60173

NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.

1-800-55-OMRON

OMRON CANADA, INC.

885 Milner Avenue

Scarborough, Ontario M1B 5V8

416-286-6465

OMRON ON--LINE

Global -- http://www.omron.com
USA -- http://www.omron.com/oei
Canada -- http://www.omron.com/oci

Document Outline

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: E3M-VG27

Document Outline

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: E3M-VG27