BECKHOFF EP9128 - Manual (Page 34)

Mounting and cabling
ZK1090­9191­ 0001 0002 0005 0010 0020 0030 0040 0050 0100 0150
Length 0.17 m 0.26 m 0.5 m 1.0 m 2.0 m 3.0 m 4.0 m 5.0 m 10 m 15 m
ZK1090­9191­ 0200 0250 0300 0350 0400 0450 0500
Length 20 m 25 m 30 m 35 m 40 m 45 m 50 m
4.3 Power supply
4.3.1 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. 43: EtherCAT Box, Connectors for power supply
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.
Attention
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.
EP9128 34 Version 2.1.0