Omron E2A3 DATASHEET

Page 1
Long Distance Cylindrical Proximity Sensor
E2A3
Extra long distance for increased protection and sensing performance
• triple distance proximity sensors for flush mounting re­quirements.
• designed and tested for extra long life.
Ordering Information
DC 3-wire Models
Size Typ e
M8 Shielded 3.0mm
M12 Shielded 6.0mm
M18 Shielded 11.0mm
M30 Shielded 20.0mm
Note:Material specifications for stainless steel housing case: 1.4305 (W.-No.), SUS303 (AISI), 2346 (SS).
Sensing distance
Connection
Pre-wired
M12 connector
M8 connector (3-pin)
Pre-wired
M12 connector
Pre-wired
M12 connector
Pre-wired
M12 connector
Body
material
Stainless steel (See note.)
Brass
Brass
Brass
Thread
length
27 (40) mm
27 (44) mm
27 (40) mm
34 (50) mm
34 (49) mm
39 (60) mm
39 (54) mm
44 (65) mm
44 (59) mm
Output Operation mode: NO Operation mode: NC
PNP E2A3-S08KS03-WP-B1 2M E2A3-S08KS03-WP-B2 2M NPN E2A3-S08KS03-WP-C1 2M E2A3-S08KS03-WP-C2 2M PNP E2A3-S08KS03-M1-B1 E2A3-S08KS03-M1-B2 NPN E2A3-S08KS03-M1-C1 E2A3-S08KS03-M1-C2 PNP E2A3-S08KS03-M5-B1 E2A3-S08KS03-M5-B2
NPN E2A3-S08KS03-M5-C1 E2A3-S08KS03-M5-C2
PNP E2A3-M12KS06-WP-B1 2M E2A3-M12KS06-WP-B2 2M NPN E2A3-M12KS06-WP-C1 2M E2A3-M12KS06-WP-C2 2M PNP E2A3-M12KS06-M1-B1 E2A3-M12KS06-M1-B2 NPN E2A3-M12KS06-M1-C1 E2A3-M12KS06-M1-C2 PNP E2A3-M18KS11-WP-B1 2M E2A3-M18KS11-WP-B2 2M NPN E2A3-M18KS11-WP-C1 2M E2A3-M18KS11-WP-C2 2M PNP E2A3-M18KS11-M1-B1 E2A3-M18KS11-M1-B2 NPN E2A3-M18KS11-M1-C1 E2A3-M18KS11-M1-C2 PNP E2A3-M30KS20-WP-B1 2M E2A3-M30KS20-WP-B2 2M NPN E2A3-M30KS20-WP-C1 2M E2A3-M30KS20-WP-C2 2M PNP E2A3-M30KS20-M1-B1 E2A3-M30KS20-M1-B2 NPN E2A3-M30KS20-M1-C1 E2A3-M30KS20-M1-C2
.
E2A3
D-35E2A3
Page 2
Connectivity
E2A3 Sensors are available with the following connectors and cable materials:
Pre-wired Models
Connector Models
Standard cable lengths are 2 m and 5 m.
Standard connectors: M12, M8 (3-pin) -M1, -M5
For other cable lengths, please contact your OMRON representative.
Standard cable material: PVC (4-mm dia.) -WP
Model Number Legend
E2A@-@@@@@-@-@@-@@
2 3 4 5 6 7 8 9 10 111 12
Example: E2A3-M12KS06-M1-B1 Triple distance, M12, standard barrel, shielded, Sn = 6 mm, M12 connector, PNP-NO
1. Basic name
2. Sensing technology
3. Housing shape and material
4. Housing size
5. Barrel length
6. Shield
7. Sensing distance
E2A3-S08KS03-WP-B1 2M Triple distance, M8 stainless steel, standard barrel, shielded, Sn = 3 mm, pre-wired PVC cable,
E2A
Blank: Standard double distance
3: Triple distance
M: Cylindrical, metric threaded, brass
S: Cylindrical, metric threaded, stainless steel
08: 8 mm
12: 12 mm
18: 18 mm
30: 30 mm
K: Standard length
L: Long body
S: Shielded
N: Non-shielded
Numeral: Sensing distance: e.g., 03 = 3 mm, 11 = 11 mm
PNP-NO, cable length = 2 m
8. Kind of connection
WP: Pre-wired, PVC, 4-mm dia.
M1: M12 connector (4-pin) *
M5: M8 connector (3-pin)
9. Power source and output
B: DC, 3-wire, PNP open collector
C: DC, 3-wire, NPN open collector
10.Operation mode
1: Normally open (NO)
2: Normally closed (NC)
11.Specials (e.g., cable material, oscillating frequency)
12.Cable length
Blank: Connector Model
Numeral: Cable length
D-36 Inductive Sensors
Page 3
Specifications
DC 3-wire Models
Size M8 M12 M18 M30
Typ e Shielded Shielded Shielded Shielded
E2A3-S08KS03-@@-B@
Item
Sensing distance 3 mm ± 10% 6 mm ± 10% 11 mm ± 10% 20 mm ± 10%
Ambient temp. of
Setting distance
Differential travel 20% max. of sensing distance Target Ferrous metal (The sensing distance decreases with non-ferrous metal.) Standard sensing object 9 × 9 × 1 mm 18 × 18 × 1 mm 33 × 33 × 1 mm 60 × 60 × 1 mm Response frequency (See note 1.) 700 Hz 350 Hz 250 Hz 80 Hz Power supply voltage
(operating voltage range) Current consumption 10 mA max.
Output type
Control output
Indicator Operation indicator (Yellow LED)
Operation mode
Protection circuits
Ambient air temperature Operating: 25°C to 70°C, Storage: 25°C to 70°C
Temperature influence
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 MΩ min. (at 500 VDC) between current-carrying parts and case Dielectric strength 1,000 VAC at 50/60 Hz for 1 min between current-carrying 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
Standards and listings (See note 2.)
Connection method
Weight (packed state)
Material
Note 1. The response frequency is an average value. Measurement conditions are as follows: standard sensing object, a distance of twice the
standard sensing object length between sensing objects, and a set distance of half the sensing distance.
2. For USA and Canada: use class 2 circuit only.
25 to 70°C Ambient temp. of
10 to 60°C
Load current 200 mA max. (32 VDC max.) Residual voltage 2 V max. (under load current of 200 mA with cable length of 2 m)
Pre-wired Models Approx. 65 g Approx. 85 g Approx. 160 g Approx. 280 g
Connector Models
Case Stainless steel Brass-nickel plated Sensing surface PBT Cable PVC Clamping nut Stainless steel Brass-nickel plated
E2A3-S08KS03-@@-C@
0 to 2.1 mm 0 to 4.2 mm 0 to 7.7 mm 0 to 14 mm
0 to 2.4 mm 0 to 4.8 mm 0 to 8.8 mm 0 to 16 mm
12 to 24 VDC. Ripple (p-p): 10% max. (10 to 32 VDC)
-B models: PNP open collector
-C models: NPN open collector
-B1/-C1 models: NO
-B2/-C2 models: NC For details, refer to the timing charts.
Power source circuit re­verse polarity protection, Surge suppressor, Short­circuit protection
±20% max. of sensing distance at 23°C within temperature range of 25°C to 70°C
10% to +20% of sensing distance at 23°C within temperature range of 10°
2
500 m/s in X, Y, and Z directions
IP67 after IEC 60529 IP69K after DIN 40050 EMC after EN60947-5-2
-WP models: Pre-wired Models (4-mm dia. PVC cable with length of 2 m)
-M1 models: M12 4-pin Connector Models
-M5 models: M8 3-pin Connector Models
M12 Connector Models: Approx. 20 g
, 10 times each
E2A3-M12KS06-@@-B@ E2A3-M12KS06-@@-C@
Output reverse polarity protection, Power source circuit reverse polarity protec­tion, Surge suppressor, Short-circuit protection
1,000 m/s
Approx. 35 g Approx. 70 g Approx. 200 g
2
, 10 times each in X, Y and Z directions
E2A3-M18KS11-@@-B@ E2A3-M18KS11-@@-C@
C to 60°C
E2A3-M30KS20-@@-B@ E2A3-M30KS20-@@-C@
E2A3
D-37E2A3
Page 4
Engineering Data
Operating Range (Typical)
22
20
18
16
14
12
10
8
Sensing distance X (mm)
6
4
2
0
30 20 10 0 10 20 30
Influence of Sensing Object Size and Materials
Y
X
E2A3-M30KS20
E2A3-M18KS11
E2A3-M12KS06
E2A3-S08KS03
Distance Y (mm)
E2A3-S08KS03
3.5
@d
3.0
2.5
2.0
1.5
X
Sensing distance X (mm)
1.0
0.5
0.0 0 5 10 15 20 25
t = 1 mm
Iron
Stainless steel (SUS303)
Brass
Aluminum
Copper
Side length of sensing object d (mm)
E2A3-M30KS20
25
@d
t = 1 mm
X
20
15
10
Sensing distance X (mm)
5
Iron
Stainless steel (SUS303)
Brass
Aluminum
Copper
E2A3-M12KS06
7
@d
t = 1 mm
X
6
5
4
3
Sensing distance X (mm)
2
1
0
0 5 10 15 20 25 30
Iron
Stainless steel (SUS303)
Brass
Aluminum
Copper
Side length of sensing object d (mm)
E2A3-M18KS11
12
@d
t = 1 mm
10
Sensing distance X (mm)
X
8
6
4
2
0
0 10 20 30 40 50
Iron
Stainless steel (SUS303)
Brass
Aluminum Copper
Side length of sensing object d (mm)
0
0 10 20 30 40 50 60
Side length of sensing object d (mm)
D-38 Inductive Sensors
Page 5
Operation
DC 3-wire Models
PNP Output
Operation mode Model Timing chart Output circuit
NO E2A3-@-@-B1
Sensing object
(%)
Sensing areaNon-sensing area
100 0
Rated
sensing
distance
Proximity Sensor
ON
Yellow indicator
OFF
ON
Control output
OFF
Proximity Sensor main circuits
Note 1: With M8 Size Models, there is no output reverse
polarity protection diode.
M12 Connector
Pin Arrangement
(See note 2.)
(See note 1.)
M8 Connector
Pin Arrangement
(3-pin)
Brown
Black
Blue
+V
Load
0 V
NC E2A3-@-@-B2
Sensing object
(%)
Sensing areaNon-sensing area
100 0
Rated
sensing
distance
Proximity Sensor
ON
Yellow indicator
OFF
ON
Control output
OFF
1
2
4
3
Note 2: Terminal 2 of the M12 connector is not used.
Proximity Sensor main circuits
Note 1: With M8 Size Models, there is no output reverse
polarity protection diode.
M12 Connector
Pin Arrangement
(See note 2.)
1
2
4
3
Note 2: Terminal 4 of the M12 connector is not used.
4
3
1
Brown
Black
(M8 connector: )
(See note 1.)
Blue
M8 Connector
(3-pin)
Pin Arrangement
4
3
1
+V
Load
0 V
E2A3
D-39E2A3
Page 6
DC 3-wire Models
NPN Output
Operation mode Model Timing chart Output circuit
Sensing object
(%)
Sensing areaNon-sensing area
100 0
Rated
sensing
distance
Proximity Sensor
Proximity Sensor main circuits
(See note 1.)
Brown
Black
+V
Load
NO E2A3-@-@-C1
NC E2A3-@-@-C2
Sensing object
(%)
Sensing areaNon-sensing area
100 0
Rated
sensing
distance
ON
Yellow indicator
OFF
ON
Control output
OFF
Proximity Sensor
ON
Yellow indicator
OFF
ON
Control output
OFF
Blue
Note 1: With M8 Size Models, there is no output reverse
polarity protection diode.
Pin Arrangement
4
Pin Arrangement
4
M8 Connector
(3-pin)
4
3
1
(See note 1.)
M8 Connector
(3-pin)
4
3
1
Brown
Load
Black
(M8 connector: )
Blue
M12 Connector
Pin Arrangement
(See note 2.)
1
2
3
Note 2: Terminal 2 of the M12 connector is not used.
Proximity Sensor main circuits
Note 1: With M8 Size Models, there is no output reverse
polarity protection diode.
M12 Connector
Pin Arrangement
(See note 2.)
1
2
3
0 V
+V
0 V
Note 2: Terminal 4 of the M12 connector is not used.
D-40 Inductive Sensors
Page 7
Dimensions
ping
)
ping
ping
ping
Note:All units are in millimeters unless otherwise indicated.
Pre-wired Models
E2A3-S08KS03-WP-@@
40
26.8
M8×1
45
Two, clamping nuts
(See note 1.)
Indicator (See note 2.)
2
; Insulator diameter: 1.3 mm),
13
Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (Conduc-
tor cross section: 0.3 mm Standard length: 2 m
2. Operation indicator (yellow)
E2A3-M12KS06-WP-@@
50.4
34
5.5
17
M12×1
Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (Conduc-
tor cross section: 0.3 mm
12
(See note 1.)
Indicator (See note 2.)
Two, clam
nuts
2
; Insulator diameter: 1.3 mm),
Standard length: 2 m
2. Operation indicator (yellow)
M12 Connector Models
E2A3-M18KS11-WP-@@
59.6
39
24
Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (Conduc-
tor cross section: 0.3 mm
615
M18×1
(See note 1.)
Indicator (See note 2.)
Two, clamping nuts
2
; Insulator diameter: 1.3 mm),
Standard length: 2 m
2. Operation indicator (yellow)
E2A3-M30KS20-WP-@@
64.6
36
M30×1.5
Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (Conduc-
tor cross section: 0.3 mm Standard length: 2 m
2. Operation indicator (yellow)
44
715
Indicator (See note 2.
Two, clamping nuts
2
; Insulator diameter: 1.3 mm),
(See note 1.)
E2A3
E2A3-S08KS03-M1-@@
43.9
26.8
M8×1
45
Two, clam
M12×1
Indicator (See note.)
nuts
13
Note:Operation indicator (yellow LED, 4×90°)
E2A3-M12KS06-M1-@@
49.2
34
5.5
17
M12×1
Note:Operation indicator (yellow LED, 4×90°)
12
Indicator (See note.)
Two, clamping nuts
M12×1
E2A3-M18KS11-M1-@@
54.2
39
24
615
M18×1
Two, clam
M12×1
Indicator (See note.)
nuts
Note:Operation indicator (yellow LED, 4×90°)
E2A3-M30KS20-M1-@@
59.2
36
M30×1.5
Note:Operation indicator (yellow LED, 4×90°)
44
715
M12×1
Indicator (See note.)
Two, clam
nuts
D-41E2A3
Page 8
M8 Connector Models
E2A3-S08KS03-M5-@@
39.8
26.8
13
45
M8×1
M8×1
Indicator (See note.)
Two, clamping nuts
Note:Operation indicator (yellow LED, 4×90°)
Mounting Hole Cutout Dimensions
External diameter
of Proximity Sensor
M8
F
M12
M18
M30
Dimension F (mm)
+0.5
8.5 dia.
0
+0.5
12.5 dia.
0
+0.5
18.5 dia.
30.5 dia.
0
+0.5
0
D-42 Inductive Sensors
Page 9
Safety Precautions
3
Precautions for Safe Use
WARNING
This product is not designed or rated for ensuring safety of persons. Do not it for such purposes.
Power Supply
Do not impose an excessive voltage on the E2A3, 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 E2A3 may be damaged.
The E2A3’s short-circuit protection function will be valid if the polarity of the supply voltage is correct and within the rated voltage range.
Precautions for Correct Use
Designing
Power Reset Time
The Proximity Sensor is ready to operate within 100 ms after power is supplied. If separate power supplies are connected to the Proxim­ity Sensor and load, be sure to supply power to the Proximity Sensor before supplying power to the load.
Effects of Surrounding Metal
When mounting the E2A3 within a metal panel, ensure that the clearances given in the following tables are maintained.
l
Wiring
Be sure to wire the E2A3 and load correctly, otherwise it may be damaged.
Connection with No Load
Be sure to insert a load when wiring. Make sure to connect a proper load to the E2A3 during operation, otherwise it may damage internal elements.
Do not expose the product to flammable or explo­sive gases.
Do not disassemble, repair, or modify the product.
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.
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.
d dia.
D
m
n
m
l
(Unit: mm)
Dimension M8 M12
Model
E2A3 Shielded
Material of
surrounding
metal
l 0.5 (*) 2 (*) 2 (*) 1 (*)
m9 18
d24 36
D0.5221
n24 36
Ferrous
metal
Non-
ferrous
metal
Ferrous
metal
Non-
ferrous
metal
(Unit: mm)
Dimension M18 M30
Model
E2A3 Shielded
* Using the nuts provided with the E2A3 allows mounting in the way shown be-
low.
Material of
surrounding
metal
l 4 (*) 2.5 (*) 6 (*) 4 (*)
m33 60
d54 90
D42.564
n54 90
Ferrous
metal
Non-
ferrous
metal
Nut provided with E2A
Ferrous
metal
Non-
ferrous
metal
Typ e
Shielded
A
A
B
(Unit: mm)
Dimension
M8 M12 M18 M30
A 253570110 B 20254570
E2A3
l = 0 mm
D-43E2A3
Page 10
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 pre­vent against Proximity Sensor damage or malfunctioning.
Cable Extension
The 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-resistance.
Do not tighten the nut with excessive force. A washer must be used with the nut.
Typ e Tor que
M8 Stainless Steel Model 9 N·m
Brass Model --­M12 20 N·m M18 60 N·m M30 150 N·m
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 indi­cator).
Never attempt to disassemble or repair the Sensor.
Environment
Water Resistivity
The Proximity Sensors are tested intensively on water resistance, but to ensure maximum performance and life expectancy, avoid immer­sion in water and provide protection from rain or snow.
Operating Environment
Store and operate the Proximity Sensor only 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. 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.
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. D102-E2-01A-X
In the interest of product improvement, specifications are subject to change without notice.
D-44 Inductive Sensors
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