PNP vs NPN Sensor selection checklist Technical answer from J&V Automation with explanation, illustration, FAQ, related products and WhatsApp support.
PNP vs NPN Sensor selection checklist
PNP outputs source positive voltage to the PLC input, while NPN outputs sink the input to negative or common. The correct choice depends on the PLC input type.
For real industrial purchasing, the safest method is to compare the old part, the electrical input, the mechanical fit and the application before treating two models as interchangeable.
PNP vs NPN Sensor selection checklist Start by confirming the real machine condition, then compare wiring, target, environment and replacement constraints before ordering.
Send the model number, label photo, installed photo, target material, voltage, output type and quantity.
Yes. Wiring type, mounting style, sensing mode and environment often decide whether an alternative will work correctly.