3-23
ET 200L, ET 200L-SC and ET 200L-SC IM-SC Distributed I/O Device
EWA 4NEB 780 6009-02c
3.9
Connecting Shielded Lines to the Shield Terminal of the
Supplementary Terminals
The shield terminal makes it easy to connect to ground all shielded cables
that lead to or from electronic modules of the Smart Connect.
You obtain a connection to ground by installing the shield terminal in the
supplementary terminal and connecting it to local ground at low resistance.
The shield terminal is subdivided by function into a connecting lug and a
spring terminal. The connecting lug establishes the electrical contact in the
supplementary terminal. The spring terminal contacts the shield of the signal
line.
To secure the shield terminal, proceed as follows:
1. Make as short a connection as possible between 2M on the
TB 16SC/TB 16IM-SC terminal block and the tier of the supplementary
terminal in which you want to insert the shield terminals.
2. Insert the shield terminal into the desired position in the supplementary
terminal.
3. Use a screwdriver with a blade width of 3.5 mm to secure the shield ter-
minal.
You can only connect one or two shielded cables to each shield terminal. You
connect the cables to the bared cable shield. The bared length of the cable
shield must be at least 20 mm. Cables with cross-sections of 4...7 mm are
connected securely.
Application
Structure of the
Shield Terminal
Mounting the
Shield Terminal
Connecting Cables
Wiring