Beckhoff EJ3255, Документация

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Installation of EJ modules
EJ3255 20 Version: 1.1
E-bus power supply with CXxxxx and EK1110-004x
The Embedded PC supplies the attached EtherCAT Terminals and the EtherCAT EJ Coupler
• with a supply voltage of 24 V
DC
(-15 %/+20%). This voltage supplies the E-bus and the Bus Terminal
electronics.
The CXxxxx units supply the E-bus with up to 2,000 mA E-bus current. If a higher current is required
due to the attached terminals, power feed terminals or power supply plug-in modules must be used for
the E-bus supply.
• with a peripheral voltage Up of 24 V
DC
to supply the field electronics.
The EK1110-004x EtherCAT EJ Couplers relay the following parameters to the signal distribution board via
the rear connector:
• the E-bus signals,
• the E-bus voltage U
EBUS
(3.3 V) and
• the peripheral voltage U
P
(24 V
DC
).
Fig. 10: PCB with Embedded PC, EK1110-0043 and EJxxxx, rear view EK1110-0043