What is the difference between a PNP configuration and NPN configuration?

Safety light curtain PSENopt

In the PNP configuration, the load is connected between the OSSD output and GND.
With the NPN configuration, the load is connected between 24 VDC and the OSSD output switching element.

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Corby, Northants, NN18 8TJ
United Kingdom

Telephone: +44 1536 460766
E-Mail: [email protected]

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