Omron E2AU - User manual

D-151E2AU
E2AU
Cylindrical Proximity Sensor for Mobile Usage
E2AU
Designed and tested to keep
your machines moving
IP69k tested and certified for highest
water resistance
e1 type approval (according to
automotive directive 95/54/EC)
EMC noise tested up to 100 V/m
(ISO 11452-2)
Ordering Information
DC 3-wire models
Size Sensing
distance
Connection Body
material
Thread length
(overall length)
Output
configuration
Operation mode NO
M12 Shielded 4.0 mm Pre-wired Brass 34 (50) PNP E2AU-M12KS04-WP-B1 2M
56 (72) PNP E2AU-M12LS04-WP-B1 2M
M12 connector Brass 34 (48) PNP E2AU-M12KS04-M1-B1
56 (70) PNP E2AU-M12LS04-M1-B1
M18 Shielded 8.0 mm Pre-wired Brass 39 (59) PNP E2AU-M18KS08-WP-B1 2M
61 (81) PNP E2AU-M18LS08-WP-B1 2M
M12 connector Brass 39 (53) PNP E2AU-M18KS08-M1-B1
61 (75) PNP E2AU-M18LS08-M1-B1
M30 Shielded 15.0 mm Pre-wired Brass 44 (64) PNP E2AU-M30KS15-WP-B1 2M
66 (86) PNP E2AU-M30LS15-WP-B1 2M
M12 connector Brass 44 (58) PNP E2AU-M30KS15-M1-B1
66 (80) PNP E2AU-M30LS15-M1-B1
D10E-EN-01+E2AU+Datasheet.fm Seite 151 Donnerstag, 12. Juni 2008 11:21 11

D-152 Inductive Sensors
Model Number Legend
Example: E2A-M12LS04-M1-B1 Standard, M12, long barrel, shielded, Sn=4 mm, M12 connector, PNP-NO
E2A-S08KN04-WP-B1 5M Standard, M8 stainless steel, short barrel, non-shielded, Sn=4 mm, pre-wired PVC cable, PNP-NO,
cable length=5 m
1. Basic name
E2A
2. Sensing technology
Blank: Standard double distance
3: Triple distance
U: Mobile Usage
X: Explosion hazarduous environments
3. Housing shape and material
M: Cylindrical, metric threaded, brass
S: Cylindrical, metric threaded, stainless steel
4. Housing size
08: 8 mm
12: 12 mm
18: 18 mm
30: 30 mm
5. Barrel length
K: Standard length
L: Long body
6. Shield
S: Shielded
N: Non-shielded
7. Sensing distance
Numeral: Sensing distance: e.g. 02=2 mm, 16=16 mm
8. Kind of connection
WP: pre-wired, PVC, dia 4mm (standard)
WS: pre-wired, PVC, dia 6mm
WR: pre-wired, PVC, robotic cable, dia 4mm
WA: pre-wired, PUR/PVC (PUR jacket), dia 4mm
WB: pre-wired, PUR/PVC (PUR jacket), dia 6mm
M1: M12 connector (4 pin) *
M3: M8 connector (4 pin)
M5: M8 connector (3 pin)
M1J pre-wired with M12 cable end connector (4 pin)
M3J pre-wired with M8 cable end connector (4 pin)
M5J pre-wired with M8 cable end connector (3 pin)
9. Power source and output
B: DC, 3-wire, PNP open collector
C: DC, 3-wire, NPN open collector
D: DC, 2-wire
E: DC, 3-wire, NPN voltage output
F: DC, 3-wire, PNP voltage output
10.Operation mode
1: Normally open (NO)
2: Normally closed (NC)
3: Antivalent (NO+NC)
11.Specials (e.g., cable material, oscillating frequency)
12.Cable length
Blank: Connector type
Numeral: Cable length
Note: *In case of DC 2-wire models the M12 connector identifier is '-M1G'
2 3 4 5 6 7 8 9 10 111 12
E2A@-@@@@@-@-@@-@@
D10E-EN-01+E2AU+Datasheet.fm Seite 152 Donnerstag, 12. Juni 2008 11:21 11

D-153E2AU
E2AU
Specifications
DC 3-wire Models
Note 1. The response frequency is an average value. Measurement conditions are as follows: standard target, a distance of twice the standard
target distance between targets, and a setting distance of half the sensing distance.
2. When using any model at an ambient temperature between −40°C and −25°C and a power voltage between 30 and 32 VDC, use a load
current of 100 mA max.,
3. For USA and Canada: Use class 2 circuit only.
Size M12
Type Shielded
Item
E2A-M12
@
S04-
@@
-B1
Sensing distance 4 mm ± 10%
Setting distance 0 to 3.2 mm
Differential travel 10% max. of sensing distance
Target Ferrous metal (The sensing distance decreases with non-ferrous metal.)
Standard target (mild steel ST37) 12×12×1 mm
Response frequency (See note 1.) 1,000 Hz
Power supply voltage
(operating voltage range)
12 to 24 VDC. Ripple (p-p): 10% max.
(10 to 32 VDC)
Current consumption (DC 3-wire) 10 mA max.
Output type PNP open collector
Control
output
Load current
(See note 2.) 200 mA max. (32 VDC max.)
Residual voltage 2 V max. (under load current of 200 mA with cable length of 2 m)
Indicator Operation indicator (Yellow LED)
Operation mode
(with sensing object approaching) -B1
Protection circuit Output reverse polarity protection, Power source circuit reverse polarity protection, Surge suppressor,
Short-circuit protection
Ambient air temperature Operating: −40°C to 70°C, Storage: −40°C to 85°C (with no icing or condensation)
Temperature influence (See note 2.) ±10% max. of sensing distance at 23°C within temperature range of −25°C to 70°C
±15% max. of sensing distance at 23°C within temperature range of −40°C to 70°C
Ambient humidity Operating: 35% to 95%, Storage: 35% to 95%
Voltage influence ±1% max. of sensing distance in rated voltage range ±15%
Insulation resistance 50 MΩmin. (at 500 VDC) between current carry parts and case
Dielectric strength 1,000 VAC at 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 directions
Shock resistance 1,000 m/s2, 10 times each in X, Y and Z directions
Standard and listings (See note 3.)
IP67 after IEC 60529
IP69k after DIN 40050
EMC after EN60947-5-2
EMC after 95/54/EC
EMC after ISO11452-2
Connection method Pre-wired models (dia 4mm PVC cable with length = 2m).
M12 connector models
Weight
(packaged)
Pre-wired model Approx. 85 g
Connector model Approx. 35 g
Material
Case Brass-nickel plated
Sensing surface PBT
Cable Standard cable is PVC dia 4mm.
Clamping nut Brass-nickel plated
D10E-EN-01+E2AU+Datasheet.fm Seite 153 Donnerstag, 12. Juni 2008 11:21 11

D-154 Inductive Sensors
DC 3-wire Models / DC 4-wire
Note 1. The response frequency is an average value. Measurement conditions are as follows: standard target, a distance of twice the standard
target distance between targets, and a setting distance of half the sensing distance.
2. When using any model at an ambient temperature between −40°C and −25°C and a power voltage between 30 and 32 VDC, use a load
current of 100 mA max.
3. For USA and Canada: Use class 2 circuit only.
Size M18 M30
Type Shielded Shielded
Item E2A-M18@S08-@@-B1 E2A-M30@S15-@@-B1
Sensing distance 8 mm±10% 15 mm±10%
Setting distance 0 to 6.4 mm 0 to 12 mm
Differential travel 10% max. of sensing distance
Target Ferrous metal (The sensing distance decreases with non-ferrous metal.)
Standard target
(mild steel ST37) 24×24×1 mm 45×45×1 mm
Response frequency
(See note 1.) 500 Hz 250 Hz
Power supply voltage
(operating voltage range)
12 to 24 VDC. Ripple (p-p): 10% max.
(10 to 32 VDC)
Current consumption
(DC 3-wire) 10 mA max.
Output type PNP open collector
Control
output
Load current
(See note 2.) 200 mA max. (32 VDC max.)
Residual voltage 2 V max. (under load current of 200 mA with cable length of 2 m)
Indicator Operation indicator (Yellow LED)
Operation mode
(with sensing object
approaching)
-B1
Protection circuit Output reverse polarity protection, Power source circuit reverse polarity protection, Surge suppressor,
Short-circuit protection
Ambient air temperature Operating: −40°C to 70°C, Storage: −40°C to 85°C (with no icing or condensation)
Temperature influence
(See note 2.)
±10% max. of sensing distance at 23°C within temperature range of −25°C to 70°C
±15% max. of sensing distance at 23°C within temperature range of −40°C to 70°C
Ambient humidity Operating: 35% to 95%, Storage: 35% to 95%
Voltage influence ±1% max. of sensing distance in rated voltage range ±15%
Insulation resistance 50 MΩmin. (at 500 VDC) between current carry parts and case
Dielectric strength 1,000 VAC at 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 directions
Shock resistance 1,000 m/s2, 10 times each in X, Y and Z directions
Standard and listings
(See note 3.)
IP67 after IEC 60529
IP69k after DIN 40050
EMC after EN60947-5-2
EMC after 95/94/EC
EMC after ISO11452-2
Connection method Pre-wired models (dia 4mm PVC cable with length = 2m).
M12 connector models.
Weight
(pakka-
ged)
Pre-wired model Approx. 160 g Approx. 280 g
Connector model Approx. 70 g Approx. 200 g
Material
Case Brass-nickel plated
Sensing surface PBT
Cable Standard cable is PVC dia 4mm.
Clamping nut brass-nickel plated for brass models stainless steel for steel models
D10E-EN-01+E2AU+Datasheet.fm Seite 154 Donnerstag, 12. Juni 2008 11:21 11

D-155E2AU
E2AU
Engineering Data
Operating Range (Typical)
Influence of Sensing Object Size and Materials
Shielded Models
Distance Y (mm)
X
Y
18
16
14
12
10
8
6
4
2
0
−30 −20 −10 0 10 20 30
E2AU-M30@S15
Sensing distance X (mm)
E2AU-M18@S08
E2AU-M12@S04
Shielded Models
5.0
4.0
3.0
2.0
1.0
0
@d
t = 1 mm
X
5101520253035 0
1.0
2.0
3.0
4.0
5.0
7.0
8.0
6.0
10 20 30 40 50 60
@d
t = 1 mm
X
0
4
8
12
16
20
10 20 30 40 50 60 70 80
@d
t = 1 mm
X
Side length of sensing object d (mm)
Brass
Iron
Sensing distance X (mm)
Stainless steel
(SUS303)
Aluminum
Copper
Side length of sensing object d (mm)
Brass
Iron
Sensing distance X (mm)
Copper
Stainless steel (SUS303)
Aluminum
E2AU-M12@S04/ E2A-S12@S04 E2AU-M18@S08/E2A-S18@S08 E2AU-M30@S15/ E2A-S30@S15
Side length of sensing object d (mm)
Sensing distance X (mm)
Iron
Stainless steel (SUS303)
Brass
Copper
Aluminum
D10E-EN-01+E2AU+Datasheet.fm Seite 155 Donnerstag, 12. Juni 2008 11:21 11

D-156 Inductive Sensors
Operation
DC 3-wire models
PNP Output
Operation mode Model Timing chart Output circuit
NO E2AU-@-@-B1
Sensing
object
(%) 100 0
Rated
sensing
distance
Sensing zoneNon-sensing zone
Proximity
Sensor
ON
OFF
ON
OFF
Yellow indicator
Control output
3
1
24
Load
Brown
Black
(See note 1.)
Blue
+V
0 V
Note 1: With M8 connector models, there is no output
reverse polarity protection diode.
M12 Connector
Pin Arrangement
(See note 2.)
Note 2: Terminal 2 of the M12 connector is not used.
Proximity
Sensor
main
circuits
D10E-EN-01+E2AU+Datasheet.fm Seite 156 Donnerstag, 12. Juni 2008 11:21 11

D-157E2AU
E2AU
Dimensions
Note:All units are in millimeters unless otherwise indicated.
Pre-wired Models (Shielded)
4
50.3
7
34
17
M12×1
Two, clamping nuts
E2AU-M12KS04-WP-@@
M18×1
410
39
59.5
24
E2AU-M18KS08-WP-@@
E2AU-M30KS15-WP-@@
510
64.5
44
36
M30×1.5
Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (conductor cross section:
0.3 mm2; insulator diameter: 1.3 mm); standard length: 2 m
2. Operation indicator (yellow)
Indicator (See note 2.)
(See note 1.)
(See note 1.)
(See note 1.)
Two, clamping nuts
Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (conductor cross section:
0.3 mm2; insulator diameter: 1.3 mm); standard length: 2 m
2. Operation indicator (yellow)
Indicator (See note 2.)
Two, clamping nuts
Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (conductor cross section:
0.3 mm2; insulator diameter: 1.3 mm); standard length: 2 m
2. Operation indicator (yellow)
Indicator (See note 2.)
M12×1
17
72.3
56
7
4
M18×1
24
81.5
61 10
4
510
86.5
66
36
M30×1.5
(See note 1.)
(See note 1.)
(See note 1.)
E2A-M12LS04-WP-@@
E2AU-M18LS08-WP-@@
E2AU-M30LS15-WP-@@
Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (conductor cross section:
0.3 mm2; insulator diameter: 1.3 mm); standard length: 2 m
2. Operation indicator (yellow)
Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (conductor cross section:
0.3 mm2; insulator diameter: 1.3 mm); standard length: 2 m
2. Operation indicator (yellow)
Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (conductor cross section:
0.3 mm2; insulator diameter: 1.3 mm); standard length: 2 m
2. Operation indicator (yellow)
Two, clamping nuts
Indicator (See note 2.)
Two, clamping nuts
Indicator (See note 2.)
Two, clamping nuts
Indicator (See note 2.)
Mounting Hole Cutout Dimensions
F
External diameter
of Proximity Sensor Dimension F (mm)
M18
M30
M12 12.5 dia.+0.5
0
18.5 dia.+0.5
0
30.5 dia.+0.5
0
D10E-EN-01+E2AU+Datasheet.fm Seite 157 Donnerstag, 12. Juni 2008 11:21 11

D-158 Inductive Sensors
M12 Connector Models (Shielded)
E2AU-M12KS04-M1-@@
E2AU-M18KS08-M1-@@
7
4
34
48
17
M12×1
M12×1
10
24 4
39
53
M18×1
M12×1
E2AU-M30KS15-M1-@@
44
5
58
36 10
M30×1.5
M12×1
Note 1: Operation indicator (yellow LED, 4×90°)
Note: Operation indicator (yellow LED, 4×90°)
Note: Operation indicator (yellow LED, 4×90°)
Two, clamping nuts
Indicator (See note.)
Two, clamping nuts
Indicator (See note.)
Two, clamping nuts
Indicator (See note.)
7
4
56
70
17
M12×1
M12×1
10
24 4
61
75
M18×1
M12×1
66
5
80
36 10
M30×1.5
M12×1
Note: Operation indicator (yellow LED, 4×90°)
Note: Operation indicator (yellow LED, 4×90°)
Note: Operation indicator (yellow LED, 4×90°)
E2AU-M12LS04-M1-@@
E2AU-M18LS08-M1-@@
E2AU-M30LS15-M1-@@
Two, clamping nuts
Indicator (See note.)
Two, clamping nuts
Indicator (See note.)
Two, clamping nuts
Indicator (See note.)
D10E-EN-01+E2AU+Datasheet.fm Seite 158 Donnerstag, 12. Juni 2008 11:21 11

D-159E2AU
E2AU
Precautions
Safety Precautions
Power Supply
Do not impose an excessive voltage on the E2AU, otherwise it may
be damaged. Do not impose AC current (100 to 240 VAC) on any DC
model, otherwise it may be damaged.
Load Short-circuit
Do not short-circuit the load, or the E2AU may be damaged.
The E2AU’s short-circuit protection function will be valid if the polarity
of the supply voltage imposed is correct and within the rated voltage
range.
Wiring
Be sure to wire the E2AU and load correctly, otherwise it may be
damaged.
Connection with No Load
Be sure to insert loads when wiring. Make sure to connect a proper
load to the E2AU in operation, otherwise it may damage internal ele-
ments.
Do not expose the product to flammable or explo-
sive gases.
Do not disassemble, repair, or modify the product.
Correct Use
Designing
Power Reset Time
The Proximity Sensor is ready to operate within 100 ms after power
is supplied. If power supplies are connected to the Proximity Sensor
and load respectively, be sure to supply power to the Proximity Sen-
sor before supplying power to the load.
Effects of Surrounding Metal
When mounting the E2AU within a metal panel, ensure that the
clearances given in the following table are maintained.
(Unit: mm)
Note 1.In the case of using the supplied nuts.
If true flash mounting is necessary, apply a free zone of
1.5 mm.
2.In the case of using the supplied nuts.
If true flush mounting is necessary, apply a free zone of
4 mm.
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 sup-
ply has an insulated transformer. Do not use a DC power supply with
an auto-transformer.
Mutual Interference
When installing two or more Sensors face-to-face or side-by-side,
ensure that the minimum distances given in the following table are
maintained.
(Unit: mm)
Type
Dimension
M12 M18
M30
Short
barrel
Long
barrel
Shielded
l0
0
(See note 1.)
0
(See note 2.)
m1224 45
d --- 27 45
D01.5 4
n1827 45
Non-
shielded
l15223040
m2048 7090
d 40 70 90 120
D1522 3040
n 40 70 90 120
l
m
n
m
D
d dia.
l
Type
Dimension
M12 M18
M30
Short
barrel
Long
barrel
Shielded A 30 60 110
B2035 70
Non-shiel-
ded
A 120 200 300 300
B 100 120 200 300
D10E-EN-01+E2AU+Datasheet.fm Seite 159 Donnerstag, 12. Juni 2008 11:21 11

D-160 Inductive Sensors
Wiring
High-tension Lines
Wiring through Metal Conduit:
If there is a power or high-tension line near the cable of the Proximity
Sensor, wire the cable through an independent metal conduit to pre-
vent against Proximity Sensor damage or malfunctioning.
Cable Extension
Standard cable length is less than 200 m.
The tractive force is 50 N.
Mounting
The Proximity Sensor must not be subjected to excessive shock with
a hammer when it is installed, otherwise the Proximity Sensor may
be damaged or lose its water-resistivity.
Do not tighten the nut with excessive force. A washer must be used
with the nut.
Maintenance and Inspection
Periodically perform the following checks to ensure stable operation
of the Proximity Sensor over a long period of time.
1. Check for mounting position, dislocation, looseness, or distortion
of the Proximity Sensor and sensing objects.
2. Check for loose wiring and connections, improper contacts, and
line breakage.
3. Check for attachment or accumulation of metal powder or dust.
4. Check for abnormal temperature conditions and other environ-
mental conditions.
5. Check for proper lighting of indicators (for models with a set indi-
cator.)
Never disassemble or repair the Sensor.
Environment
Water Resistivity
The Proximity Sensors are tested intensively on water resistance, but
in order to ensure maximum performance and life expectancy avoid
immersion in water and provide protection from rain or snow.
Operating Environment
Ensure storage and operation of the Proximity Sensor within the
given specifications.
Inrush Current
A load that has a large inrush current (e.g., a lamp or motor) will
damage the Proximity Sensor, in which case connect the load to the
Proximity Sensor through a relay.
<SUITABILITY FOR USE>
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of the products in the
customer’s application or use of the products.
Take all necessary steps to determine the suitability of the product for the systems, machines, and equipment with which it will be used.
<CHANGE IN SPECIFICATIONS>
Product specifications and accessories may be changed at any time based on improvements and other reasons. Consult with your OMRON
representative at any time to confirm actual specifications of purchased product.
Type Torque
M12 30 Nm
M18 70 Nm
M30 180 Nm
In the interest of product improvement, specifications are subject to change without notice.
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. D10E-EN-01
D10E-EN-01+E2AU+Datasheet.fm Seite 160 Donnerstag, 12. Juni 2008 11:21 11
A
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