Cable shielding
4.1 Connecting the cable shielding for S7-1500 and ET 200MP
Designing interference-free controllers
Function Manual, 06/2014, A5E03461486-AB
17
4.1
Connecting the cable shielding for S7-1500 and ET 200MP
A special shield design has been developed for the automation system S7-1500 and the
distributed I/O system ET 200MP for the shield connection of the signal lines. The
connection element for the cable shield consists of a shield clamp and a shield terminal.
If the front connector is located in the module, the interference currents which occur are
diverted by the connection element to the ground via the module and mounting rail.
The shield clamp is a pluggable mount for the analog and technology modules. The shield
clamp allows the low-impedance application of cable shields with minimum installation times.
The following figure shows a front connector with mounted shield clamp and associated
shield terminal.
①
Shield clamp
②
Stripped cable shield
③
Shield terminal
Figure 4-2
Shield clamp and shield terminal on front connector
The shield clamp is inserted from below onto the front connector until the shield clamp
latches audibly. The shield terminal is fastened to the shield clamp.
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