Beckhoff ELX3351, Руководство по эксплуатации

Страница: 16 / 71

Mounting and wiring
ELX3351 16 Version: 1.3.1
3.3 Arrangement of ELX terminals within a bus terminal
block
WARNING
Observe the following instructions for the arrangement of ELX terminals!
• ELX signal terminals must always be installed behind an ELX9560 power supply termi-
nal, without exception!
• Only signal terminals of the ELX series may be installed behind an ELX9560 power
supply terminal!
• Multiple ELX9560 power supply terminals may be set in one terminal block as long as
one ELX9410 is placed before each additional ELX9560!
• An ELX9410 power supply terminal must not be mounted to the right of an ELX9560
nor to the left of any ELX signal terminal!
• The last terminal of each ELX segment is to be covered by an ELX9012 bus end cover,
unless two ELX9410 power supply terminals are installed in direct succession for con-
tinuing the same terminal segment with standard Beckhoff EtherCAT terminals (e.g. EL/
ES/EK)!
Examples for the arrangement of ELX terminals
Fig. 4: Valid arrangement of the ELX terminals (right terminal block).
Fig. 5: Valid arrangement - terminals that do not belong to the ELX series are set before and after the ELX
terminal segment. The separation is realized by the ELX9560 at the beginning of the ELX terminal segment
and two ELX9410 at the end of the ELX terminal segment.
Fig. 6: Valid arrangement - multiple power supplies by ELX9560, each with an upstream ELX9410.