Beckhoff EP1957-0022 Operating Instructions Manual page 25

Power connection
Contact
1
2
3
4
The contacts of the M8 connectors can conduct a maximum current of 4 A.
Two LEDs indicate the status of the supply voltages.
Do not confuse the power port with EtherCAT port!
Never connect the power cables (M8, 24 V
modules. This can cause the destruction of the modules!
Control voltage Us
The fieldbus and the processor logic are supplied from the 24 V
electrically isolated from the fieldbus circuitry.
Peripheral voltage Up
The peripheral voltage Up supplies the digital clock outputs, the safe inputs and the safe outputs.
Redirection of the supply voltages
The power IN and OUT connections are bridged in the module. Hence, the supply voltages Us and Up can
be passed from EtherCAT Box to EtherCAT Box in a simple manner.
Note the maximum current!
For the distribution of the supply voltages Us and Up, please note that the maximum permitted current of
4 A for the respective contacts of the M8 plug connector should not be exceeded, even in the event of a
fault, e.g. short circuit!
EP1957-0022 and EP1957-2222
Voltage
Control voltage Us, +24 V
Peripheral voltage Up, +24 V
GND Us
GND Up
Connecting the functional earth
) to the green-marked EtherCAT sockets of the EtherCAT Box
DC
Version: 2.0.0
M8 - pin assignment
DC
DC
NOTE
control voltage Us. The control voltage is
DC
CAUTION
Operation
25