E4B-LS70E4-2M - Omron - Datasheet.Directory

Ultrasonic Sensor With Zone Sensing E4B

Through-beam, Reflective and

Zone Models

H1 m through-beam for long range

applications

HNarrow beam angle of 8°detects

objects as small as 2 x 2 cm

HZone models detect objects smoothly

while suppressing interference from

background objects

H200 kHz provides high immunity from

environmental noise

HUser-selectable normally open and

normally closed operation

Orderin

Information

Supply voltage Sensing type Sensing distance Cable length Part number

NPN output PNP output

12 to 24 VDC Through-beam 1m 2m E4B-T1E4 2M E4B-T1F4 2M

5m E4B-T1E4 5M E4B-T1F4 5M

50 cm 2m E4B-TS50E4 2M E4B-TS50F4 2M

5m E4B-TS50E4 5M E4B-TS50F4 5M

Zone setting 20 to 70 cm 2m E4B-RS70E4 2M E4B-RS70F4 2M

5m E4B-RS70E4 5M E4B-RS70F4 5M

Distance setting 20 to 70 cm 2m E4B-LS70E4 2M E4B-LS70F4 2M

5m E4B-LS70E4 5M E4B-LS70F4 5M

5to20cm 2m E4B-LS20E4 2M E4B-LS20F4 2M

5m E4B-LS20E4 5M E4B-LS20F4 5M

E4B E4B

JSENSING TYPE

Through-beam Detects the attenuation or interrupted condition

of the ultrasonic beam caused by the object

passing between the Emitter and Receiver.

E4B-TjS Emitter

Sensing object

E4B-TjR Receiver

Reflective Setting distance Detects only the beam reflected from the

object existing within the sensing distance

range set with the distance adjuster.

Unstable range

Distance adjustment

Sensing object

E4B-LSj

Setting

zone

Sensing

background

Detects the object with the interruption of the

normal beam reflected from the acoustically

reflective surface.

Sensing distance

adjustable range

Acoustically reflective

surface

Sensing

object

E4B-RS70

Sensing target Detects only the beam reflected from the

object existing in the sensing range set with

the distance selector.

Unstable range Sensing

object

E4B-RS70

Note: An object may be detected due to multiple reflection if the object is in the unstable range where the distance adjuster is ineffective,

in which case however, the detection of the object will not be stable. Therefore, do not attempt to use the E4B to detect an object

in the unstable range.

E4BE4B

Specifications

JRATINGS/CHARACTERISTICS

Part number E4B-TS50E4 E4B-T1E4 E4B-LS20E4 E4B-LS70E4 E4B-RS70E4

Sensing method Through-beam Distance setting Zone setting

Supply voltage 12 to 24 VDC ±10% (10.8 to 26.4 VDC) with a max. ripple ±10% (p-p)

Current

consumption

12 VDC Emitter: 155 mA

max.

Receiver: 30 mA

max.

Emitter: 70 mA

max.

Receiver: 30 mA

max.

100 mA max.

24 VDC Emitter: 80 mA

max.

Receiver: 30 mA

max.

Emitter: 50 mA

max.

Receiver: 30 mA

max.

50 mA max.

Sensing distance 50 cm (19.69 in) 1 m (3.28 ft) 5to20cm

(1.97to7.87in)

20 to 60 cm

(20to70cm)

(See Note 1.)

(7.87into

23.62 in)

20 to 60 cm

(20to70cm)

(See Note 1.) (in

10-cm divisions)

(7.87 to 23.62 in)

Standard sensing object 10 x 10 cm flat plate 4x4cmflatplate

Differential travel —20% max. of sensing distance 3cmmax.

Directional angle (See Note 2.) ±8°max.

Ultrasonic oscillation frequency 200 kHz

Switching frequency (See Note 3.) 50 Hz 10 Hz 50 Hz 20 Hz

Response time 10 ms 50 ms 10 ms 25 ms

Operating mode N.O. or N.C. selectable

Control output NPN 100 mA at 30 VDC (with a residual voltage of 1.5 V max.) and an output resistance of 4.7 kΩ

PNP

(

)

Ω

Residual voltage 1.5 V max. under a load current of 100 mA

Indicators SENSING indicator (red LED) and STABILITY indicator (green LED)

Ultrasonic speed compensation No Yes

Ambient operating temperature -- 1 0 °Cto55°C(14°F to 131°F)

Relative humidity 35% to 95%

Temperature influence ±10% max. of sensing distance at 20°C(68°F) in the temperature range of --10°C and 55°C

(14°F to 131°F)

Voltage influence ±5% max. of sensing distance at a voltage between 90% and 110% of the rated power supply

voltage

Insulation resistance 20 MΩmin. at 500 VDC between current carry parts and case

Dielectric strength 1,000 V (50/60 Hz) for 1 min between current carry parts and case

Vibration resistance 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z axes

Shock resistance 500 m/s2(approx. 50G) 3 times each in X, Y, and Z axes

Enclosure rating IEC IP66 (water resistant)

Approvals UL, cUL Recognized, File No. E41515 when used with a Class 2 power source

Weight (with 2-m-long cord and

Mounting Bracket)

Approx. 600 g (21 oz) with Emitter

and Receiver

Approx. 300 g (10.6 oz)

Note: 1. These are the available sensing distances at an ambient temperature range between 0°C and 45°C(32°Fto113°F)

2. Signal attenuation of --6 dB.

3. The switching frequencies are values obtained with the E4B used for detecting a rotating propeller-shaped disc as shown

below.

Space:Blade = 1:1

E4B E4B

eration

JOUTPUT CIRCUITS

NPN Output DC

Main

circuit

Note: 1. 100 mA max. (load current)

2. Required when the transistor circuit is connected.

Signal received, output on

(Power supply polarity:

Brown: +; Blue: 0 V)

STABILITY

indicator (red)

Output

transistor

Load (relay)

Output voltage

(logic)

Signal not received, output on

(Power supply polarity:

Brown: 0 V: Blue: +)

Brown

Black

Blue

Signal received

Signal interrupted

OFF

Operate

Release (Brown ↔Black)

(Blue ↔Black)

STABILITY

indicator (red)

Output

transistor

Load (relay)

Output voltage

(logic)

Sound incident

Sound interrupted

OFF

Operate

Release

(Brown ↔Black)

(Blue ↔Black)

Load

Note 1.

Note 2.

4.7k

PNP Output

(No Diagram Provided)

OFF

E4BE4B

ineerin

Data

JOPERATING DISTANCE VS. SENSING OBJECT SIZE (TYPICAL)

E4B-T

50E4, E4B-T1E4 E4B-LS20E4 E4B-LS70E4, E4B-RS70E4

Sensing position

E4B-T1E4:

Sensitivity adjuster

set to Max.

E4B-TS50E4:

Sensitivity adjuster set to Max.

Sensitivity adjuster: Adjust with stable incident.

Sensing position X (cm) (from Receiver)

Sample: Round pipe

that is 10 cm long

min.

Sample: Round pipe

that is 10 cm long

min.

Sensing distance (cm) Operating distance (cm)

E4B-LS20E4 E4B-LS70E4, E4B-RS70E4

JOPERATING DISTANCE VS.

SENSING OBJECT ANGLE

(TYPICAL)

Sensing distance (cm)

55-dia. rod

30-dia. rod

Sensing distance (cm)

Angle ( )

Sensing object

Distance X

Stable operating range

Operating distance X (cm)

E4B-LS70

E4B-RS70

Angle θ

JOPERATING RANGE

DIAGRAM (TYPICAL)

E4B-LS70E4, E4B-RS70E4

Dia. (d) of sensing object or length (W)

of one side in cm.

Minimum Sensing object size (cm)

for stable operation

Dia. (d) of sensing object or length (W)

of one side in cm.

Sensitivity adjuster: Adjust with stable incident.

Standard sensing object (40 x 40 flat plate)

Standard sensing object

(40 x 40 flat plate)

E4B E4B

E4B-LS70E4, E4B-RS70E4 E4B-T1E4

Variation rate of sensing distance (%)

Ambient temperature (°C)

Operating distance Y (cm)

VR:Max.

VR: Center

VR:Min.

Setting distance X (cm)

JAMBIENT TEMPERATURE VS.

VARIATION RATE OF SENSING

DISTANCE (TYPICAL)

JSENSITIVITY ADJUSTER POSITION

VS. PARALLEL MOVEMENT

CHARACTERISTICS

Installation

JINDICATORS

1. STABILITY Indicator (Green)

When this indicator is lit, the ultrasonic input into the Receiver is

sufficient, or its interruption is small enough, to ensure the

smooth operation of the E4B. Do not operate the E4B when this

indicator is not lit.

2. SENSING Indicator (Red)

When this indicator is lit, the Receiver has ultrasonic input.

JINDICATOR OF THROUGH-BEAM

EMITTER

1. Incident Indicator

Lit when ultrasonic signal detected.

To use this indicator of the Emitter as an SENSING indicator like

the indicator on the Receiver, connect the black lead wires of the

Emitter and Receiver together.

Emitter

100 mA max.

Receiver

Load

Black

Blue

Brown

Blue

Brown

Black

+12to24V

Note: Be sure not to make mistakes in polarity when connecting the above wires. In other words, both brown lead wires must connect to

+VDC or 0 V and both blue lead wires must connect to 0 V or +VDC. Otherwise, the indicator of the Emitter will be lit when the

ultrasonic beam is interrupted.

2. Power Indicator

Lit when the E4B is turned ON.

If the above connections are not possible (e.g., the Receiver and

Emitter use different power supplies), this indicator will be used

as a power indicator.

Connections of Black (White) Lead Wire of Emitter

Power connection example

Brown: +VDC

Blue: 0 V

Brown: 0 V

Blue: +VDC

0 V blue

+VDC blue

Note: The indicator will not be lit if the above wires are not con-

nected correctly.

E4BE4B

JBEAM AXIS, SENSITIVITY, AND

DISTANCE ADJUSTMENTS

1. E4B-T1 and E4B-TS50 Through-beam Models

Set the SENSITIVITY adjuster of the Receiver to maximum.

Move the Emitter and Receiver vertically and horizontally until the

SENSING indicator of the Receiver is lit and secure the Emitter

and Receiver at the midpoint of the range within which the

STABILITY indicator is lit.

Optimum line

Range in which the STABILITY indicator (green) is lit

Range in which the SENSING indicator (red) is lit

Pass the sensing object through the sensing range and adjust

the sensitivity so that the SENSING indicator turns ON and OFF

according to the presence or absence of the sensing object while

the STABILITY indicator is lit continuously.

If the STABILITY indicator is not lit while the Sensor is in

operation, this may indicate a possible operational error. Check

or readjust the sensitivity.

If the Emitter and Receiver are set at a distance shorter than the

rated sensing distance, reduce the sensitivity to within the range

in which the STABILITY indicator is lit. This will increase the

immunity of the Sensor against noise.

The parallel movement characteristics (i.e., the mutual

interference distance) and sensing object size vary with the

sensitivity adjustment. Refer to Engineering Data and make the

optimum adjustments.

2. E4B-LS20 and E4B-LS70 Distance Setting Models

Locate the Sensor so that both the STABILITY and SENSING indicators will be lit when the object is placed at the sensing position, and

the STABILITY indicator will be lit and the SENSING indicator will turn OFF when the object is removed.

Step 123

Sensing

Sensing object

Background

Sensing object

Background

Sensing object

Background

Distance adjuster --- ---

Adjustment

procedure

Place the sensing object at the

sensing position and turn the

distance adjuster clockwise

gradually until both the SENSING

and STABILITY indicators are lit.

Rotate the sensor vertically and

horizontally and secure the sensor

at the midpoint of the range within

which the STABILITY indicator is on.

Remove the sensing object and

check that the SENSING indicator is

OFF and the STABILITY indicator is

continuously on.

Note: If the STABILITY indicator is not lit while the Sensor is in operation, this indicates a possible operational error. Check or readjust

the sensitivity.

E4B-LS20

The sensing distance is adjustable within a range of 10 to 20 cm

with the distance adjuster.

Sensing

distance

Position of distance adjuster

5to10cm Set to the position 5-20. The distance range will

be5to23cminthiscaseduetothe

characteristics of the ultrasonic beam.

10 to 20 cm The adjuster can be set freely within a range of

10 to 20 cm. The object can be detected within a

range of 5 to 10 cm in this case due to multiple

ultrasonic reflection.

Setting sensing range (cm)

Sensing object

Unstable range

Separate them 30 cm min.

Background

E4B-LS20

E4B E4B

3. E4B-RS70 Reflective Zone

Target Reflective

Locate the Sensor so that both the STABILITY and SENSING indicators will be lit when the sensing object is placed at the sensing posi-

tion and the STABILITY indicator will be lit and the SENSING indicator will be off when the sensing object is removed.

Step 123

Sensing

Sensing object

Background

Sensing object

Background

Sensing object

Background

Distance selector --- ---

Adjustment

procedure

Place the sensing object at the

sensing position and turn the

distance selector clockwise

gradually until both the SENSING

and STABILITY indicators are lit.

Rotate the sensor vertically and

horizontally and secure the sensor

at the midpoint of the range within

which the STABILITY indicator is on.

Remove the sensing object and

check that the SENSING indicator is

OFF and the STABILITY indicator is

continuously on.

Note: 1. If the STABILITY indicator is not lit while the Sensor is in operation, this indicates a possible operational error. Check or readjust

the sensitivity.

2. If the background object is within a distance of 1.5 m from the sensing head, the SENSING indicator may be lit and the STABILITY

indicator may not be lit in spite of the absence of the sensing object. Sensitivity should be reduced until STABILITY indicator turns

on. Re-check operation with object present. If stable operation still does not occur, background may need to be relocated.

E4BE4B

Background Reflective

This method allows the stable detection of objects under irregular

and unstable reflection conditions (e.g., if the sensing objects are

different in surface or size, if they are passed through diagonally,

or if they are sound absorbant).

The sensor is adjusted to detect the background, Acoustic

Reflector, rather than the target directly. When the target is

present, it blocks detection of the Acoustic Reflector.

Reflector

Sensing range (20 to 55 cm)

ℓ: Near the midpoint of the sensing range (e.g., 45, 55, or 65 cm)

E4B-RS70

The Acoustic Reflector must be at least 4 x 4 cm in size and

made of a material that is efficiently reflective (such as a metal

plate).

Be sure that the target is not set within the sensing range.

Set the distance selector to the desired position, fix the reflector

around the midpoint of the set sensing range, and check that

both the SENSING and STABILITY indicators are lit.

Step 123

Sensing

Reflector

Set zone

Reflector

Sensing object

Distance selector --- ---

Adjustment

procedure

Set the distance selector to the

desired zone position, mount the

Reflector at or near the midpoint of

the set zone, and confirm that both

the STABILITY and SENSING

indicators are on.

Rotate the sensor vertically and

horizontally and secure the Emitter

and Receiver at the midpoint of the

range within which the STABILITY

indicator is on.

Remove the sensing object and

check that the SENSING indicator is

OFF and the STABILITY indicator is

continuously on.

Note: 1. If the STABILITY indicator is not lit while the Sensor is in operation, this indicates a possible operational error. Check or readjust

the sensitivity.

2. If the object is in position A parallel to the Reflector as shown above, the SENSING indicator may be lit and the STABILITY

indicator may not be lit depending on the position of the sensing object. In such a case, give priority to the adjustment of the

STABILITY indicator when the beam is incident by means of the reflector.

E4B E4B

Dimensions

Unit: mm (inch)

JE4B-TS50

E4B-T1

E4B-LS20

E4B-LS70

E4B-RS70

Tw o , M4 x 4 5

4.5 dia.

(See Note.)

Note: Vinyl-insulated round cable

with three conductors, 6 dia.;

standard length: 2 m

62 49.5

(1.38)

79 (3.11)

20 8

5R2.5

50 (1.97) 8 11.5

71.5

(2.40) 57

17.5 44.5

11.5

Precautions

JSENSOR MOUNTING ANGLE

If the E4B is in level control or distance control of sensing

objects, the stability of signal detection will depend on the

sensing surface condition of the objects. Considering the repose

angle of the objects, mount the E4B so that the ultrasonic beam

and the sensing surface of each object meet at right angles to

each other.

JSURROUNDING OBJECTS

Make sure that the Sensor is free from surrounding objects that

reflect the ultrasonic beam diffusion, otherwise the Sensor may

malfunction. In particular, pay the utmost attention so that no side

lobe of the ultrasonic beam will be reflected by such objects.

JMOUNTING

Securely mount the E4B by using the nuts provided with the E4B

or the mounting holes of the E4B. Refer to Dimensions for

details.

Do not strike the Sensor with hammer or other object, otherwise

the E4B will no longer be water-resistant.

If the E4B is not mounted securely, the E4B may be damaged by

vibration or may not detect target objects accurately due to a

possible change in the mounting position.

E4BE4B

JENVIRONMENTAL CONDITIONS

Do not use the E4B at a temperature exceeding the rated range

or outdoors, otherwise the reliability and life of the E4B will

decrease.

The Ultrasonic Reflective Sensor utilizes the air as a beam

transmission media. Do not use the E4B in places with radical

convection or extreme local temperature changes. For example,

if there is a hot air curtain that causes turbulence within the

sensing area, the E4B may malfunction.

Turbulence Air curtain

Emitter

Receiver

The jetting sound of air nozzles includes noise of a wide

frequency range, which will affect the operation of the E4B. Do

not use an air nozzle near the E4B.

The sensing distance of the E4B will decrease if there is any

water drops on the surface of the emitter or receiver.

The through-beam model may not detect any objects if there is

any object absorbing sound, such as powder and cotton, on the

surface of the emitter or receiver.

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

OMRONON--LINE

Global-- http://www.omron.com

USA -- http://www.omron.com/oei

Canada -- http://www.omron.com/oci