Omron E2S-Q12, E2S-W11, E2S-W21, E2S-W22, E2S-Q21 Datasheet

Miniature Square Inductive Proximity Sensor

E2S

• Miniature housing with long sensing ranges

• Front ans side facing sensing surfaces

Features

5.5 mm

The 5.5 mm x 5.5 mm type permits smaller, space-saving ma­chines and devices.

Adopted for more compact machines and devices.

Ultra small housing

5.5mm

1 kHz

IP67

Full sealing structure housing, degree of protection IEC60529 IP67.

1/20

Significantly lower current consumption. The 0.8 mA (for 24
VDC) leakage current for the DC 2-wire type has a ratio of ap­proximately 1/20 compared to the conventional DC 3-wire
type. Optimum solution for multiple-sensor applications such
as cam switches.

High-Speed Response

Environment-Resistant Types

Low Current Consumption (Com­pared to conventional models)

E2S

D-61E2S

Ordering Information

Sensors

DC 2-wire Models

Model

Shape Sensing surface Sensing distance

NO NC

Front face E2S-W11 * E2S-W12

Unshielded

* Models with different response frequency are available (NO only). These model numbers take the form E2S-###B (e.g., E2S-W11B)

End face

Front face

End face

1.6mm

2.5mm

E2S-Q11 * E2S-Q12

E2S-W21 * E2S-W22

E2S-Q21 * E2S-Q22

DC 3-wire Models

Shape Sensing surface Sensing distance

Front face

End face

Front face

Unshielded

* Models with different response frequency are available (NO only). These model numbers take the form E2S-###B (e.g., E2S-W11B)

End face

Front face

End face

Front face

End face

1.6mm

2.5mm

1.6mm

2.5mm

Output

specifications

NPN

PNP

Operating status

Model

Operating status

NO NC

E2S-W13* E2S-W14
E2S-Q13* E2S-Q14
E2S-W23* E2S-W24
E2S-Q23* E2S-Q24
E2S-W15* E2S-W16
E2S-Q15* E2S-Q16
E2S-W25* E2S-W26
E2S-Q25* E2S-Q26

Accessories (Order Separately)

Mounting Brackets

Shape Model Quantity Remarks

Y92E-C1R6

Y92E-C2R5

Y92E-D1R6 ---

Y92E-D2R5 ---

Provided with E2S-#1

Provided with E2S-#2

1

Nomenclature

E2S - ####

ABCDE

A Compact square

series

B Sensing direction
W: Front face sensing
Q: End face sensing

C Size and sensing distance
(standard sensing object)
1: 5.5 x 5.5 mm, 1.6 mm (iron)
2: 8 x 8 mm, 2.5 mm (iron)

##

##

D Output
1: DC 2-wire NO
2: DC 2-wire NC
3: DC 3-wire NPN NO
4: DC 3-wire NPN NC
5: DC 3-wire PNP NO
6: DC 3-wire PNP NC

E Different response
frequency
No: Standard
B: Different response
frequency

D-62 Inductive Sensors

Rating/Performance

DC 2-wire Models

Model
Item
Sensing surface Front face End face Front face End face
Sensing distance 1.6 mm ±10% 2.5 mm ±15%
Setting distance
Differential distance 10% max.
Sensing object Ferrous metal (Sensitivity lowers with non-ferrous metals)
Standard sensing

object
Response frequency 1 kHz min.
Rated supply voltage

(operating voltage)

Leakage current

Switching

Control
output

Indicator lamp

Operating status
(with sensing object
approaching)

* The response frequencies for DC switching are average values measured under the condition that the distance between each sensing object is twice as large as the

size of the sensing object and the sensing distance set is half of the maximum sensing distance.

capacity
Residual

voltage

E2S-W11
E2S-W12

0 to 1.2 mm

Iron, 12 x 12 x 1 mm Iron, 15 x 15 x 1 mm

12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max.

0.8 mA max.

3 to 50 mA DC max.

3 V max. (under load current of 50 mA with cable length of 1 m)

##1 models: Operation indicator(red LED), Operation set indicator(green LED)
##2 models: Operation indicator(red LED)

##1 models: NO
##2 models: NC

E2S-Q11
E2S-Q12

E2S-W21
E2S-W22

0 to 1.9 mm

E2S-Q21
E2S-Q22

DC 3-wire Models

Model
Item
Sensing surface Front face End face Front face End face Front face End face Front face End face
Sensing distance 1.6 mm ±10% 2.5 mm ±15% 1.6 mm ±10% 2.5 mm ±15%
Setting distance
Differential distance 10% max.
Sensing object Ferrous metal
Standard sensing

object
Response frequency 1 kHz min.
Rated supply voltage

(operating voltage)
Current consumption 13 mA max. (24 VDC, unload)

Switching

Control
output

Indicator lamp Operation indicator (orange)
Operating status

(with sensing object
approaching)

* The response frequencies for DC switching are average values measured under the condition that the distance between each sensing object is twice as large as the

size of the sensing object and the sensing distance set is half of the maximum sensing distance.

capacity
Residual

voltage

E2S-W13
E2S-W14

0 to 1.2 mm

Iron, 12 x 12 x 1 mm Iron, 15 x 15 x 1 mm Iron, 12 x 12 x 1 mm Iron, 15 x 15 x 1 mm

12 to 24 VDC (10 to 30 VDC), ripple (p-p): 10% max.

NPN open collector 100 mA max. (30 VDC max.) PNP open collector 50 mA max. (30 VDC max.)

1 V max. (under load current of 50 mA with cable length of 1 m)

##3 models: NO
##4 models: NC

E2S-Q13
E2S-Q14

E2S-W23
E2S-W24

0 to 1.9 mm 0 to 1.2 mm 0 to 1.9 mm

E2S-Q23
E2S-Q24

E2S-W15
E2S-W16

##5 models: NO
##6 models: NC

E2S-Q15
E2S-Q16

E2S-W25
E2S-W26

E2S-Q25
E2S-Q26

E2S

D-63E2S

Specifications

Item Model E2S-###
Protective circuits Reverse polarity connection and surge absorber
Ambient temperature Operating: -25°C to 70°C, Storage: -40°C to 85°C (with no icing or condensation)
Ambient humidity Operating: 35% to 90%RH, Storage: 35% to 95%RH (with no condensation)
Temperature influence ±15% max. of sensing distance at 23°C in temperature range of -25°C to 70°C
Voltage influence ±2.5% max. of sensing distance within a range of ±10% of rated supply voltage
Insulation resistance 50 M min. (at 500 VDC) between energized parts and case
Dielectric strength 1,000 VAC for 1 min between energized parts and case
Vibration resistance 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance Destruction: 500 m/s2 for 3 times each in X, Y, and Z directions
Protective structure IEC60529 IP67
Connection method Pre-wired models (Standard length: 3 m)
Weight (Packed state) Approx. 10 g
Material Case Polyarylate
Accessories Mounting Brackets

Characteristic data (typical)

Sensing Distance vs. Sensing Object

E2S-W1#/-Q1# E2S-W2#/-Q2#

2

1.5

Distance X (mm)

1

0.5

Iron

SUS

Brass

Copper

X

Aluminum

t=1mm

#d

4

#d

3

Distance X (mm)

2

1

t

mm

=1

X

X

Iron

SUS

Brass

Copper

Aluminum

01020304050

Side length of sensing object d (mm)

0 102030405060

Side length of sensing object d (mm)

D-64 Inductive Sensors

Output Circuit Diagram

DC 2-wire Models

Operating

status

NO

NC

Model Timing chart Output circuit

E2S-W11
E2S-W21
E2S-Q11
E2S-Q21

E2S-W12
E2S-W22
E2S-Q12
E2S-Q22

Sensing
object

(%)

Sensing
object

(%)

Rated sensing

distance

Non-sensing

zone

Setting position

Unstable
Sensing

Stable sensing zoneNon-sensing zone

zone

100 080

Sensing zoneNon-sensing zone

100 0

Proximity Sensor

ON

Setting indicator (green)

OFF
ON

Operation indicator (red)

OFF
ON

Control output

OFF

Proximity Sensor

ON

Operation indicator (red)

OFF
ON

Control output

OFF

Main
circuit

Brown

Blue

Load

+V

0V

DC 3-wire Models

Operating

status

NO

NC

NO

NC

specifications

Output

NPN

PNP

Model Timing chart Output circuit

E2S-W13
E2S-W23
E2S-Q13
E2S-Q23

E2S-W14
E2S-W24
E2S-Q14
E2S-Q24

E2S-W15
E2S-W25
E2S-Q15
E2S-Q25

E2S-W16
E2S-W26
E2S-Q16
E2S-Q26

Sensing object

Output transistor (load)

Operation indicator (orange)

Sensing object

Output transistor (load)

Operation indicator (orange)

Sensing object

Output transistor (load)

Operation indicator (orange)

Sensing object

Output transistor (load)

Operation indicator (orange)

Yes

OFF

OFF

Yes

OFF

OFF

Yes

OFF

OFF

Yes

OFF

OFF

ON

ON

No
ON

ON

ON

ON

ON

ON

No

Main
circuit

* Maximum load current: 50 mA

No

Main
circuit

No

* Maximum load current: 50 mA

Brown

Black
Output

Blue

Brown

Black

Blue

E2S

+V

Load

*

0V

+V

*

Load

0V

D-65E2S

Precautions

Correct Use

Design

Effects of Surrounding Metal

• Provide a minimum distance between the Sensor and the
surrounding metal as shown in the table below.

• Front Surface Sensing Type (Not exceeding the sensor
head height)

Sensing surface

A

Proximity Sensor

(Unit: mm)

Model Length A B C
E2S-W1#
E2S-W2# 15 10

0

• End Surface Sensing Type

A

C

(Unit: mm)

Model Length A B C
E2S-Q1# 832
E2S-Q2# 15 10 3

Sensing

B

surface

CC

Proximity Sensor

82

B

B

Mutual Interference

If more than one Sensor is located face to face or in parallel,
be sure to maintain enough space between adjacent Sensors
to suppress mutual interference as provided in the following
diagram,.

• Front Surface Sens-

• End Surface Sensing Type

ing Type

A

(Unit: mm)

Model Length A B
E2S-W(Q)1# 50 (40) 20 (5.5)
E2S-W1# 75 (50) 25 (8)

Note: The above values in parentheses are applicable when using two sensors

with different frequencies.

B

A

B

Mounting

Tightening torgues

Do not tighten the E2S-W(Q)2#mounting screws to a torque
exceeding 0.7 Nm.

D-66 Inductive Sensors

Dimensions (Unit: mm)

Sensors

E2S-W1#

E2S-Q1#

5.9

8.4

2.9 dia. vinyl-insulated
round cable, 2 / 3 cores
(conductor sectional

2

area: 0.14mm
diameter: 0.9 dia.) ;
standard length: 1 m

, Insulator

E2S-W2#

2.9 dia. vinyl-insulated round
cable, 2 / 3 cores (conductor
sectional area: 0.14mm
Insulator diameter: 0.9 dia.)
; standard length: 1 m

2

,

3.1 dia. mounting holes

5.3

If mounting bracket is attached

2.6

R1.5

22

22.3

25.1

1

19

If mounting bracket is attached

Indicator *

11.3

20

10.1

11.5

15.5

Sensing surface

8

8

7.4
2
2

3.1 dia.

3

2.5

10.8

Sensing surface

6.4

5.5

Indicator *

* E2S-W11#

E2S-W12#

E2S-W13#
E2S-W14#
E2S-W15#
E2S-W16#

7.4

7.8

*E2S-W21#

E2S-W22#

E2S-W23#
E2S-W24#
E2S-W25#
E2S-W26#

2

2.3

5.9

Operation indicator (red)
Setting indicator (green)

Operation indicator (red)

Operation indicator (orange)

2.3

Operation indicator (red)
Setting indicator (green)

Operation indicator (red)

Operation indicator (orange)

If mounting bracket is attached

8.4

2.9 dia. vinyl-insulated
round cable, 2 / 3 cores
(conductor sectional area:

2

, Insulator diameter: 0.9 dia.) ;

0.14mm
standard length: 1 m

2

R1.5

1

E2S-Q2#

2.5

2.9 dia. vinyl-insulated round cable,
2 / 3 cores (conductor sectional area:

0.14m‡u, Insulator diameter: 0.9 dia.) ;
standard length: 1 m

5.3

3.1 dia.

3.1 dia. mounting holes

3

Indicator *

Sensing surface

6.4

5.55.9

2

22.3

25.1

19

* E2S-Q11#

E2S-Q12#

E2S-Q13#
E2S-Q14#
E2S-Q15#
E2S-Q16#

If mounting bracket is attached

3.6

2
2

Sensing surface

8

8.9

*E2S-Q21#

E2S-Q22#

E2S-Q23#
E2S-Q24#
E2S-Q25#
E2S-Q26#

8

8.4

10.8

11.3

23

2.5

Indicator *

14.5

4.1

18.5

2

2.3

5.9

Operation indicator (red)
Setting indicator (green)

Operation indicator (red)

Operation indicator (red)

2.3

Operation indicator (red)
Setting indicator (green)

Operation indicator (red)

Operation indicator (orange)

E2S

Accessories (Order Separately*)

Mounting Brackets

Y92E-C1R6

Material: Stainless
steel (SUS304)

* Provided with
E2S-

#1##

Mounting Brackets

Y92E-D1R6

Material: Stainless
steel (SUS304)

2.4

5.9

8.4

Two, R1.6

7

20.4

17.2
15

14

8

5.3

2

11.3

2.5

R1.2

R1.5

Two, R1.2

9.5

1.52.3

3

M3

3.2

1

5

3

R1.6

17.4

5.6

5.3

5

2

1.5

5.6

6.4

1.1

3.5

1.3

Mounting Holes

17.5

Four, R1

3.2

3

0.9

0.3

2

5.7

Two, R0.7

0.4

Mounting Holes

2.3

2.4 dia. screw
depth 2 min.

Two, M3

12

Mounting Brackets

Y92E-C2R5

Material: Stainless
steel (SUS304)

* Provided with

#2#

E2S-

Mounting Brackets

Y92E-D2R5

Material: Stainless
steel (SUS304)

7.8

Two, R1.6

2.5

3.1 dia.

10.8

11.3

2.5

0.4

8.1

2.3

0.4

2

2

Mounting Holes

11.5

Mounting Holes

Two, M3

dia. 2.4 screw
depth 3 min.

17

M3 screw depth 8 min.

22.4

1

16

3.2

3.2
8

7

R1.6

5

Four, R1

0.2

D-67E2S

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.

Cat. No. E902-E2-02-X

In the interest of product improvement, specifications are subject to change without notice.

D-68 Inductive Sensors