
6.3 Port assignments
6 Assembly and wiring
Power supply
Pin
Signal
Function
1
U
S
(+24 V)
Sensor/system power supply
2
GND_U
L
Ground/reference potential U
L
3
GND_U
S
Ground/reference potential U
S
1
4
U
L
(+24 V)
Load supply
(
NOT
electrically isolated to U
S
internally in
device)
5
FE (PE)
Functional ground
Table 8: Power supply with M12-Power
Attention:
Only use power supply units for the system/sensor
and actuator supply that correspond to PELV (Protective Extra
Low Voltage) or SELV (Safety Extra Low Voltage). Power supplies
according to EN 61558-2-6 (transformers) or EN 60950-1 (switching
power supply units) fulfill these requirements.
6.3.3 I/O ports as M12 sockets
6.3.3.1 IO-Link Class A
Color coding: black
Figure 7: Schematic drawing I/O port as M12 socket IO-Link Class A
1
U
L
and U
S
ground connected in device
Manual EtherCAT®
Version 1.1 04/2021
32