PNP or NPN output?
Nov 28, 2022
When you choose our pressure switches like UPS1 and UPS2 models, which output do you want: NPN or PNP?
NPN and PNP are mainly different in the direction of current and the positive and negative voltage. To put it "professional", it is the problem of "polarity". The output signals are diametrically opposed, that is, high level and low level. PNP output is low level 0, NPN output is high level 1.
PNP and NPN sensors generally have three lead lines, namely the power line VCC, 0V line, and out signal output line.
Any interest, feel free to contact Stella Meng.
