E2A-M12KS04 Datasheet, PDF (14/17 Pages) Omron Electronics LLC – Cylindrical Proximity Sensor

Precautions
■ Safety Precautions
Power Supply
Do not impose an excessive voltage on the E2A, 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 E2A may be damaged.
The E2A’s short-circuit protection function will be valid if the polarity
of the supply voltage imposed is correct and within the rated voltage
range.
■ 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 E2A within a metal panel, ensure that the clear-
ances given in the following table are maintained.
l
Wiring
Be sure to wire the E2A and load correctly, otherwise it may be dam-
aged.
Connection with No Load
Be sure to insert loads when wiring. Make sure to connect a proper
load to the E2A 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.
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.
d dia.
n
m
D
m
l
(Unit: mm)
Type
Shielded
Non-
shielded
Dimension M8 M12 M18
l
000
(See note
1.)
m
4.5 12 24
d
--- --- 27
D
0 0 1.5
n
12 18 27
l
12 15 22
m
8 20 48
d
24 40 70
D
12 15 22
n
24 40 70
M30
Short Long
barrel barrel
0
(See note 2.)
45
45
4
45
30
40
70
90
90
120
30
40
90
120
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.
Type
Shielded
Non-
shielded
Dimension M8
A
20
B
15
A
80
B
60
(Unit: mm)
M12
30
20
120
100
M18
60
35
200
120
M30
Short Long
barrel barrel
110
70
300 300
200 300
14
E2A Cylindrical Proximity Sensor