Mounting and connection
EP5xxx
31
Version: 2.3.0
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
Table 1: PIN assignment
Pin
Voltage
1
Control voltage Us, +24 V
DC
2
Auxiliary voltage Up, +24 V
DC
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.
NOTE
Don't confuse the power connectors with the EtherCAT connectors!
Never connect the power cables (M8, 24 V
DC
) with the green marked EtherCAT sockets of the EtherCAT
Box Modules! This can damage the modules!
Control voltage Us: 24 V
DC
Power is supplied to the fieldbus, the processor logic, the inputs and the sensors from the 24 V
DC
control
voltage Us. The control voltage is electrically isolated from the fieldbus circuitry.
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