Datasheet

EE-SX3173/4173-P Series
4
Safety Precautions
To ensure safe operation, be sure to read and follow the Instruction Manual provided with the sensor.
This product cannot be used as a safety device for
press machines or for protecting the safety of
persons. This product is designed for use in
applications for sensing workpieces and workers
that do not affect safety.
This product is not designed or rated for ensuring
safety of persons either directly or indirectly.
Do not use it for such purposes.
Be sure to observe the following precautions to ensure safety.
Wiring
Power Supply Voltage
Do not exceed the operating voltage and current ranges. Applying a
voltage or current exceeding the operating range or using an AC
power supply for the DC power supply sensor may result in rupture or
burning.
Load Short-circuit
Do not short-circuit the load. Doing so may result in rupture or
burning.
Faulty Wiring
Do not make a mistake with the wiring, such as reversing the power
supply polarity. Doing so may result in rupture or burning.
Typical example 1) Wrong polarity
Connection without a Load
If the power supply is connected directly without a load, the internal
elements may explode or burn. Be sure to insert a load when
connecting the power supply.
AND Connection
With an AND connection as shown in the figure below, a voltage is
applied to Vcc while GND of sensor 2 is not securely grounded. A
failure may occur. Do not make this kind of connection. Also in some
models, an inrush current may occur in sensor 2 when sensor 1 is
turned on, causing failure or malfunction.
Storage and Operating Environment
1. Places where the product is not exposed to corrosive gases, such
as hydrogen sulfide gas, or salty wind.
2. Places where it is not exposed to direct sunlight.
3. Make sure that flux, oil, or other chemicals do not adhere to the
surface of the emitter and receiver.
4. Do not apply a load that may deform or deteriorate the product in
any circumstances.
5. Store the product in a normal temperature, humidity, and pressure
environment.
6. The product should be used without freezing or condensation.
7. Do not use the product in atmospheres or environments that
exceed product ratings.
8. This product does not have a water-proof or dust-proof structure.
Therefore, do not use it in an application or environment where it
will be subjected to dust or splashes from water, oil, or any other
liquid.
WARNING
CAUTION
Precautions for Safe Use
Load
Vcc
OUT
GND
Sensor
Load
Vcc
OUT
GND
Sensor
++
-
(Load
short-circuit)
Load
Vcc
OUT
GND
Sensor
Load
Vcc
OUT
GND
Sensor
(Load short-circuit)
+
+
-
+
-
Load
Vcc
OUT
GND
Sensor
+
-
Vcc
OUT
GND
Sensor
++
-
Vcc
OUT
GND
Sensor 1
Vcc
OUT
GND
Sensor 2
++
-
Load