BECKHOFF CX9020 - Manual (Page 22)

Mounting and wiring
3.5 Mounting of passive terminals on the CX9020 power
supply
Note
Note on the mounting of passive terminals
EtherCAT Bus Terminals (ELxxxx/ESxxxx) that do not actively participate in data exchange
within the Bus Terminal block are called passive terminals. These terminals can be recog­
nised by their lack of power consumption from the E­Bus. In order to ensure optimal data
exchange, these may not be connected directly in­line to the power supply!
Examples of the mounting of passive terminals (coloured dark):
The following drawing shows impermissible mounting:
The following illustration shows the correct mounting of the passive terminal:
CX9020 22 Version 1.1