Global
These are navigation links to move inside this page.
Quick links to OMRON IA in your country / territory.
-
- Middle East
-
Please contact our European headquarters.
Question
What is the difference of NPN transistor output and PNP transistor output of the sensor?
Answer
(1) NPN output type is used when connecting a load between power supply + and sensor output terminal.
(2) PNP output type is used when connecting a load between sensor output terminal and power supply -.
This type is used a lot in Europe from the viewpoint on safety because the load is not driven even if somewhere of the wiring connected with the sensor output terminal is short-circuited with power supplies in some factors.
(3) The following is output circuit diagram of the E2E as typical.
Recommended Products
E2E
Standard Sensors for Detecting Ferrous Metals under Standard Conditions
E32 Series
OMRON's Fiber Sensors continue to support an increasing range of applications.
FZ2 Series
Real color sensors equipped with 2-million-pixel CCDs, the fastest in the industry. Nine different types of cameras are available.
Other Photoelectric Sensors FAQ
-
Can a Photoelectric Sensor with an Optical Fiber be used in an explosion-proof area?
-
What's the difference between a Reflective Fiber Unit and a Coaxial Reflective Fiber Unit?
-
Our Photoelectric Sensors malfunction when the power supply of an inverter motor or other equipment is switched ON or OFF.
What's causing this, and what can we do to resolve it?
Top of page
