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6
6 Electrical connection
The unit must be connected by a qualified electrician�
The national and international regulations for the installation of electrical
equipment must be adhered to�
Voltage supply according to EN 50178, SELV, PELV�
► Disconnect power�
► Connect the unit as follows:
Operation as 2-wire unit
Operation as 4-wire unit
4
3
2
1
L+
L
3
1
4
2
IO-Link
L+
L
1
2
Operation as 2-wire unit
Operation as 4-wire unit
Pin 1 L+
L+
Pin 2 Analogue signal for temperature
Analogue signal for temperature
Pin 3
L-
Pin 4
IO-Link
6.1 IO-Link
6.1.1 General information
This unit has an IO-Link communication interface which requires an IO-Link-capa-
ble module (IO-Link master) for operation�
The IO-Link interface enables direct access to the process and diagnostic data
and provides the possibility to set the parameters of the unit during operation�
In addition communication is possible via a point-to-point connection with a USB
adapter cable�
You will find more detailed information about IO-Link at www�ifm�com/gb/io-link�