Beckhoff EL2911, Руководство по эксплуатации

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System description
EL2911 11 Version: 1.0.0
2.1.2 EtherCAT Terminals
Mechanical data Bus Terminal
Material polycarbonate, polyamide (PA6.6).
Dimensions (W x H x D) 12 mm x 100 mm x 68 mm or 24 mm x 100 mm x 68 mm
Mounting on 35 mm mounting rail (EN 60715) with locking
Attachable by double slot and key connection
Fig. 3: Overview of EtherCAT Terminals
Connection technology Bus Terminal
Wiring Spring-loaded system
Connection cross-section typically 0.08 mm² – 2.5 mm², stranded wire, solid wire
Communication E-bus
Power contacts Up to 3 blade/spring contacts
Current load 10 A
Nominal voltage Depending on terminal type (typically 24 V
DC
)
2.1.3 E-bus
The E-bus is the data path within a terminal strip. The E-bus is led through from the Bus Coupler through all
the terminals via six contacts on the terminals' side walls.
2.1.4 Power contacts
The operating voltage is passed on to following terminals via three power contacts. Terminal strip can be
split into galvanically isolated groups by means of potential supply terminals as required. The supply
terminals play no part in the control of the terminals, and can be inserted at any locations within the terminal
strip.