LG Electronics 120S user manual Example of external devices, Current, Pnp, Voltage

Chapter 6 Input and Output Specification

4) Example of external devices.

To connect with external device of DC output type into DC input module, wire depending on the type of the external device as shown.

		External device				Input
Contact	Relay					IN
points
		7mA				COM
NPN open	Sensor	+	Power for
collector			sensor
		Output				IN
			7mA
output type		0V				COM +
NPN						Same power for sensor
						and input
current		+
	Constant	Output
	] current					IN
output
		0V	7mA	Power for	+	COM +
				sensor
type
PNP
current		+	Power for
			sensor
		Output
output						IN
		0V	7mA			COM -
type
Voltage		+				COM +
		Output
output
						IN
		0V		Power for
type
				sensor
			6-4