Power Supply; Power Connection; Fig. 15 Ethercat Box, Connectors For Power Supply; Fig. 16 Pin Assignment M8, Power In And Power Out - Beckhoff EtherCAT EP3752-0000 Manual

3.3

Power supply

3.3.1

Power Connection

The feeding and forwarding of supply voltages is done via two M8 connectors at the bottom end of the
modules:
• IN: left M8 connector for feeding the supply voltages
• OUT: right M8 connector for forwarding the supply voltages
Fig. 15: EtherCAT Box, Connectors for power supply
Fig. 16: Pin assignment M8, Power In and Power Out
PIN assignment
Pin Voltage
1 Control voltage Us, +24 V
2 Auxiliary voltage Up, +24 V
3 GNDs* *) may be connected internally to each other depending on the module: see specific
module descriptions
4 GNDp*
The pins M8 connectors carry a maximum current of 4 A.
Two LEDs display the status of the supply voltages.
Don't confuse the power connectors with the EtherCAT connectors!
Never connect the power cables (M8, 24 V
Box Modules! This can damage the modules!
Control voltage Us: 24 V
Power is supplied to the fieldbus, the processor logic, the inputs and the sensors from the 24 V
voltage Us. The control voltage is electrically isolated from the fieldbus circuitry.
EP3752-0000
DC
DC
) with the green marked EtherCAT sockets of the EtherCAT
DC
DC
Version: 1.1
NOTE
Mounting and cabling
control
DC
21