E3X-DA11-N Datasheet, PDF (30/36 Pages) Omron Electronics LLC – The Ultimate Fiber Amplifier for Maximum Ease of Use and High Performance

General Precautions
Photoelectric Sensors Technical Guide
For precautions on individual products, refer to Safety Precautions in individual product information.
WARNING
These Sensors cannot be used in safety devices for
presses or other safety devices used to protect
human life. These Sensors are designed for use in
applications for sensing workpieces and workers
that do not affect safety.
Precautions for Safe Use
To ensure safety, always observe the following precautions.
● Wiring
Item
Power Supply Voltage
Do not use a voltage in
excess of the operating
voltage range.
Applying a voltage in excess
of the operating voltage
range, or applying AC power
(100 VAC or greater) to a DC
Sensor may cause explosion
or burning.
• DC Three-wire NPN Output Sensors
Brown
Load
Sensor
Black
Blue
Load Short-circuiting
Do not short-circuit the load.
Doing so may cause explo-
sion or burning.
• DC Three-wire NPN Output Sensor
Brown
Load
Sensor
(Load ⁺
Black short -
Blue
circuit)
Typical examples
---
• AC Two-wire Sensors
Example: E3E2
Load
(Load short circuit)
Brown
Sensor
Blue
Incorrect Wiring
Do not reverse the power
supply polarity or otherwise
• DC Three-wire NPN Output Sensors
Example: Incorrect Polarity
• DC Three-wire NPN Output Sensors
Example: Incorrect Polarity Wiring
wire incorrectly. Doing so
Load
may cause explosion or
burning.
Brown
Load
-
Sensor
Blue
Black
+
Brown
Sensor
Black
Blue
Brown
Load
+
Sensor
-
Blue
Black
-
+
Connection without a
load
If the power supply is
connected directly without a
load, the internal elements
may burst or burn. Be sure to
insert a load when
connecting the power
supply.
• DC Three-wire NPN Output Sensors
Brown 12 to
24VDC
Sensor
Black
0V
Blue
• AC 2-wire Sensors
Example: E3E2 etc.
Brown
Sensor
Blue
● Operating Environment
(1) Do not use a Sensor in an environment where there are explosive or inflammable gases.
(2) Do not use the Sensor in environments where the cables may become immersed in oil or other liquids or where liquids may penetrate the
Sensor. Doing so may result in damage from burning and fire, particularly if the liquid is flammable.
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
C-1