Omron E2Q2 DATASHEET

Long Distance Square Inductive Proximity Sensor

E2Q2

Square Proximity Sensor

• Terminal Housing

• Active face direction changeable

• Easy to install and same mounting dimensions as
a standard style electro-mechanical limit switch

• Integrated short circuit and reverse polarity protec­tion

• Robust body with stainless steel screws

Ordering Information

DC type

Sensing
distance

20 mm
shielded

30 mm
non-shielded

40 mm
non-shielded

# = H: terminal conduit M20x1,5

U: terminal conduit 1/2“ NPT

Sensing
distance

15 mm
shielded

30 mm
shielded

# = H: terminal conduit M20x1,5

U: terminal conduit 1/2“ NPT

Sensing
distance

15 mm
shielded

Connection

Terminals Changeable

Connection

Terminals

Connection

Terminal

conduit ½“ NPT

Active

face

NPN
PNP
NPN
PNP
NPN
PNP

AC type

Active

face

AC

Changeable

AC

Weld-Field Immune DC type (100mT)

Active

face

Changeable PNP

Output

NO NO + NC
E2Q2-N20E1-H E2Q2-N20E3-#
E2Q2-N20F1-H E2Q2-N20F3-#

E2Q2-N30ME3-#
E2Q2-N30MF3-#
E2Q2-N40ME3-#
E2Q2-N40MF3-#

Output

NO NO or NC

E2Q2-N15Y4-#

E2Q2-N30MY4-#

Output

NO NO + NC

E2Q2-N15F1-51

E2Q2

Weld-Field Immune AC type (100mT)

Sensing
distance

15 mm
shielded

Connection

Terminal

conduit ½“ NPT

Active

face

Changeable AC

Output

NO NO or NC

E2Q2-N15Y4-51

D-69E2Q2

Rating/performance

DC type

shielded non-shielded

Model E2Q2-N15F1-51

Item
Sensing distance Sn 15 mm ± 10% 20 mm ± 10% 30 mm ± 10% 40 mm ± 10%
Standard target size, L x W x H, Fe 37 45 x 45 x 1 mm 60 x 60 x 1 mm 90 x 90 x 1 mm 120 x 120 x 1 mm
Setting distance 0 to 12,15 mm 0 to 16,2 mm 0 to 24,3 mm 0 to 32,4 mm

Switching frequency

Sensing object Ferrous metals
Differential travel 15% max. of sensing distance Sn
Operating voltage 10 to 30 VDC 10 to 60 VDC
Current consumption 20 mA max. 10 mA max. 20 mA max.
Control output Type E2Q2-N###E1-##:NPN - NO

Load 200 mA max.

On-stage voltage drop 3 VDC max. (at 200 mA load current)
Circuit protection Reverse polarity, output short circuit
Alternating magnetic field 100 mT --­Indicator Operating indicator (yellow LED), operating voltage (green LED)
Ambient temperature Operating: -25° to 70°C
Ambient humidity 35 to 95% RH
Influence of temperature ± 10% max. of Sn at 23° in temperature range of -25° to 70°C
Dielectric strength 1.500 VAC, 50/60 Hz for 1 min. between current carry parts and case
Electromagnetic compatibility EMC EN 60947-5-2
Vibration resistance 10 to 55 Hz, 1 mm amplitude according IEC 60068-2-6
Shock resistance Approx. 30 G for 11 ms according to IEC 60068-2-27
Protection degree IEC 60529 IP 67
Connection Terminals Up to 2,5 mm²
Material Case

Terminal base

Sensing face PBT
Approvals

weld-immune type

10 Hz (weld-field im­mune type)

E2Q2-N###E3-##: NPN - NO + NC
E2Q2-N###F1-##:PNP - NO
E2Q2-N###F3-##: PNP - NO + NC

PBT
Al
PBT (...-H type)

CERTIFIED

E2Q2-N20##-# E2Q2-N30##-# E2Q2-N40##-#

150 Hz 100 Hz 30 Hz

LISTED

D-70 Inductive Sensors

AC type

shielded non-shielded

Model E2Q2-N15Y4-51

Item

weld-immune type
Sensing distance Sn 15 mm ± 10% 30 mm ± 10%
Standard target size, L x W x H, Fe 37 45 x 45 x 1 mm 90 x 90 x 1 mm
Setting distance 0 to 12,15 mm 0 to 24,3 mm
Switching frequency 20 Hz
Sensing object Ferrous metals
Differential travel 15% max. of sensing distance Sn
Operating voltage 20 to 253 VAC
Off-state current 2,5 mA max. 1,9 mA max.
Control output Type AC - NO or NC

Load

500 mA max.

10 mA min. 8 mA min.

On-stage voltage drop 12 VAC max. (at 500 mA load current)
Circuit protection --­Alternating magnetic field 100 mT --­Indicator Operating indicator (yellow LED), operating voltage (green LED)
Ambient temperature Operating: -25° to 70°C
Ambient humidity 35 to 95% RH
Influence of temperature ± 10% max. of Sn at 23° in temperature range of -25° to 70°C

Dielectric strength

1.500 VAC / 2500 VAC (E2Q2-...-H), 50/60 Hz for 1 min. between current carry parts and

case
Electromagnetic compatibility EMC EN 60947-5-2
Vibration resistance 10 to 55 Hz, 1 mm amplitude according IEC 60068-2-6
Shock resistance Approx. 30 G for 11 ms according to IEC 60068-2-27
Protection degree IEC 60529 IP 67
Connection Terminals Up to 2,5 mm²
Material Case

Terminal base

PBT

Al

PBT (...-H type)

Sensing face PBT

Approvals

CERTIFIED

E2Q2-N15##-# E2Q2-N30##-#

LISTED

E2Q2

D-71E2Q2

Output Circuit Diagram

NPN output

Model

E2Q2-N20E1-H

Operation

mode

NO

Sensing
object

(%)

Timing chart Output circuit

Sensing zoneNon-sensing zone

100 0

Rated

sensing

distance

Proximity
Sensor

ON

Yellow indicator

OFF
ON

Control output

OFF

Proximity
Sensor
main
circuits

4.7kΩ

Operation
Indicator
(yellow)

Brown

Black

Blue

+V

Load

0 V

E2Q2-N20E3­E2Q2-N30ME3-

#

E2Q2-N40ME3-

PNP output

Model

E2Q2-N20F1-H
E2Q2-N15F1-51

E2Q2-N20F3­E2Q2-N30MF3­E2Q2-N40ME3-

#

Sensing zoneNon-sensing zone

Sensing
object

(%)

#
#

NO + NC

Operation

mode

Sensing
object

(%)

100 0
sensing

Rated

distance

Timing chart Output circuit

Sensing zoneNon-sensing zone

100 0

Rated

sensing

distance

NO

Sensing zoneNon-sensing zone

Sensing
object

(%)

#
#

NO + NC

100 0

sensing

Rated

distance

Proximity
Sensor

ON

Yellow indicator

OFF
ON

Control output NO

OFF

ON

Control output NC

OFF

Proximity
Sensor

ON

Yellow indicator

OFF
ON

Control output

OFF

Proximity
Sensor

ON

Yellow indicator

OFF
ON

Control output NO

OFF
ON

Control output NC

OFF

Proximity
Sensor
main
circuits

Proximity
Sensor
main
circuits

Operation
Indicator
(yellow)

Proximity
Sensor
main
circuits

Operation
Indicator
(yellow)

Operation
Indicator
(yellow)

4.7kΩ

Brown

4.7kΩ4.7kΩ

Black

NO

White

NC

Blue

Brown

+V

Load

Load

0 V

+V

Black

Load

Blue

Brown

0 V

+V

White

NC

Black

NO

4.7kΩ4.7kΩ

Blue

Load

Load

0 V

AC output

Model

E2Q2-N15Y4-51

Operation

mode

NO or NC

Sensing
object

(%)

Timing chart Output circuit

Sensing zoneNon-sensing zone

100 0

sensing

Rated

distance

Proximity
Sensor

ON

Yellow indicator

OFF
ON

Control output NO

OFF
ON

Control output NC

OFF

Proximity
Sensor
main
circuits

Operation
Indicator
(yellow)

Note: Only one load allowed!

Brown

Blue

Brown

White

LoadLoad

D-72 Inductive Sensors

Dimensions (Unit: mm)

E2Q2-...-H type E2Q2-...-U and -51 type

M20x1,5

½“ NPT

E2Q2

D-73E2Q2

Connection

DC type

Connection type Method Description

The Sensors connected together must satisfy the following conditions:
i

L + (N-1) x i ≤ Upper-limit of control output of each Sensor

V

S - N x VR ≥ Load operating voltage

N = No. of Sensors
V

AND
(serial connection)

R = Residual voltage of each Sensor

V

S = Supply voltage

i = Current consumption of the Sensor
i

L = Load current

If the MY Relay, which operate at 24 VDC, is used as a load for example,
a maximum of two Proximity Sensors can be connected to the load.

OR
(parallel connec­tion)

A minimum of three Sensors with current outputs can be connected in

parallel. The number of Sensors connected in parallel varies with the

Proximity Sensor model.

AC type

Connection type Method Description

If 100 or 200 VAC is imposed on the Proximity Sensors, V
age imposed on the load) will be obtained from the following.
V

L =VS - (residual voltage x no. of Proximity Sensors) (V)

AND
(serial connection)

OR
(parallel connec­tion)

Therefore, if V
operate.
A maximum of three Proximity Sensors can be connected in series pro­vided that the supply voltage is 100 V minimum.

In principle, more than two Proximity Sensors cannot be connected in
parallel.
Provided that Proximity Sensor A does not operate with Proximity Sen­sor B simultaneously and there is no need to keep the load operating
continuously, the Proximity Sensors can be connected in parallel. In this
case, however, due to the total leakage current of the Proximity Sensors,
the load may not reset properly.
It is not possible to keep the load operating continuously with Proximity
Sensors A and B in simultaneous operation to sense sensing objects due
to the following reason.
When Proximity Sensor A is ON, the voltage imposed on Proximity Sen­sor A will drop to approximately 10 V and the load current flows into Prox­imity Sensor A, and when one of the sensing objects is close to Proximity
Sensor B, Proximity Sensor B will not operate because the voltage im­posed on Proximity Sensor B is 10 V, which is too low.
When Proximity Sensor A is OFF, the voltage imposed on Proximity Sen­sor B will reach the supply voltage and Proximity Sensor B will be ON.
Then, Proximity Sensor A as well as Proximity Sensor B will be OFF for
approximately 10 ms, which resets the load for an instant. To prevent the
instantaneous resetting of the load, use a relay as shown on the left.

L is lower than the load operating voltage, the load will not

L (i.e., the volt-

D-74 Inductive Sensors

Precautions

! Caution

Power supply

Do not impose an excessive voltage on the E2Q2, otherwise
it may explode or burn.
Do not connect an AC power supply to any DC model. If AC
power (100 VAC or more) is supplied to the sensor, it may ex­plode or burn.

Do not connect the AC types without load to the power supply.
The sensor will be damaged.

Correct Use

Design

Effects of Surrounding Metal

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

B

A

C

Effects of Surrounding Metal (Unit: mm)

Model Length A B C

E2Q2-N15##-##
E2Q2-N20 ##-#

E2Q2-N30M##-#
E2Q2-N40M##-#

Mutual Interference

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

45 0 0
90 250 30

120 300 40

Be sure to abide by the following precautions for the safe op­eration of the Sensor.

Wiring

Power Supply Voltage and Output Load Power Supply Volt­age

Make sure that the power supply to the Sensor is within the
rated voltage range. If a voltage exceeding the rated voltage
range is supplied to the Sensor, it may explode or burn.

Load Short-circuiting

Do not short-circuit the load, otherwise the Sensor may be
damaged.

Connection without Load

Do not connect the power supply to the Sensor with no load
connected, otherwise the internal elements may explode or
burn.

Operating Environment

Do not use the Sensor in locations with explosive or flamma­ble gas.

Side-by-side

A

Mutual Interference (Unit: mm)

Model Length A

E2Q2-N15##-##
E2Q2-N20 ##-#

E2Q2-N30M##-#
E2Q2-N40M##-#

40

120
150

Power Reset Time

The Sensor is ready to operate within 300 ms after the Sensor
is turned ON. If the load and Sensor are connected to inde­pendent power supplies respectively, be sure to turn ON the
Sensor before supplying power to the load.

Power OFF

The Proximity Sensor may output a pulse signal when it is
turned OFF. Therefore, it is recommended that the load be
turned OFF before turning OFF the Proximity Sensor.

Power Supply Transformer

When using a DC power supply, make sure that the DC power
supply has an insulated transformer. Do not use a DC power
supply with an auto-transformer.

E2Q2

Sensing Object

The sensing distance of the Proximity Sensor vary with the
metal coating on sensing objects.

D-75E2Q2

Wiring

High-tension cables

Wiring through Metal Conduit:
If there is power or high-tension line near the cable of the
Proximity Sensor, wire the cable through an independent met­al conduit to prevent against Proximity Sensor damage or
malfunction.

Mounting

Mounting the Sensor

The Proximity Sensor must be subjected to excessive shock
with a hammer when it is installed, otherwise the Proximity
Sensor may be damaged or lose its water-resistivity.

Environment

Water Resistivity

Do not use the Proximity Sensor underwater, outdoors or in
the rain.

Operating Environment

Be sure to use the Proximity Sensor within its operating ambi­ent temperature range and do not use the Proximity Sensor
outdoors so that its reliability and life expectancy can be main­tained. Although the Proximity Sensor is water resistive, a
cover to protect the Proximity Sensor from water or water-sol­uble machining oil is recommended so that its reliability and
life expectancy can be maintained.

Maintenance and Inspection

Periodically perform the following checks to ensure stable op­eration of the Proximity Sensor over a long period of time.

• Check for mounting position, dislocation, looseness or dis­tortion of the Proximity Sensor and sensing objects.

• Check for loose wiring and connections, improper contacts
and line breakage.

• Check for attachment or accumulation of metal powder or
dust.

• Check for abnormal temperature conditions and other envi­ronmental conditions.

Never disassemble or repair the Sensor.

Do not use the Proximity Sensor in an environment with
chemical gas (e.g., strong alkaline or acid gasses including ni­tric, chromic and concentrated sulfuric acid gases).

Inrush Current

A load that has a large inrush current (e.g., a lamp or motor)
will damage the Proximity Sensor, in this case connect the
load to the Proximity Sensor through a Relay

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. D01E-EN-02

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

D-76 Inductive Sensors