Emerson numatics g3 series - I;O Module(s) Wiring Diagrams; NPN;PNP Definitions

G3SeriesPROFIBUS‐DPTechnicalManual
Page 47
TDG3PTTM1-2EN 02/09
Subject to change without notice
www.numatics.com/g3
I/O Module(s) Wiring Diagrams
NPN/PNP Definitions
There is confusion between NPN, PNP, Sinking and Sourcing terminologies. Basically, if one is using sensors that provide
a 24 VDC signal to the input module then a PNP input module type will be required. If one is using a sensor that supplies a
0 VDC signal to the input module then an NPN input module type will be required.
NPN Descriptions
 Sinking
 Switching Negative
 Positive Common
PNP Descriptions
 Sourcing
 Switching Positive
 Negative Common
NPN (Sinking) Input Connection
PNP (Sourcing) Input Connection
LOAD
LOAD
Mechanical Sensor Type
Electronic Sensor Type
2
4
3
1
2
4
3
1
Mechanical Sensor Type
Electronic Sensor Type
2
4
3
1
2
4
3
1