Beckhoff EL3773 - Shielding; Positioning of Passive Terminals; Fig. 26 Correct Positioning

Mounting and wiring
EL377336 Version: 2.5
Terminal housing High Density Housing
Wire size width (single core wires) 0.08 ... 1.5mm
2
Wire size width (fine-wire conductors) 0.25 ... 1.5mm
2
Wire size width (conductors with a wire end sleeve) 0.14 ... 0.75mm
2
Wire size width (ultrasonically “bonded" conductors) only 1.5mm
2
Wire stripping length 8 ... 9mm
5.4.3 Shielding
Note
Shielding
Encoder, analog sensors and actors should always be connected with shielded, twisted
paired wires.
5.5 Positioning of passive Terminals
Note
Hint for positioning of passive terminals in the bus terminal block
EtherCAT Terminals (ELxxxx / ESxxxx), which do not take an active part in data transfer
within the bus terminal block are so called passive terminals. The passive terminals have
no current consumption out of the E-Bus.
To ensure an optimal data transfer, you must not directly string together more than 2 pas-
sive terminals!
Examples for positioning of passive terminals (highlighted)
Fig.26: Correct positioning