● Attach the cable shield to a shield bar directly after the line inlet into the cabinet. Insulate
the shielded cable without any interruptions. Route the cable shield up to the device
connection.
① Shielding bus
② Shielded cable
③ Mounting clip
Image 6-1 Shield connection using a clip
NOTICE
Damaged or incorrectly mounted cable shielding
Incorrect connection or damaging of the cable shield can impair the function of the system.
● Handle the cable shield carefully.
● Ensure that the cable shield is correctly connected.
● Bridge shield gaps (at terminals, circuit-breakers, contactors, etc.) with minimum
impedance and through the largest possible surface area.
① Shield buses
② Cable
③ Terminals
Image 6-2 Bridging shield gaps
Electrical connection
6.2 Electromagnetic compatibility
SINAMICS SM120 6SL38855?B
Operating Instructions 12/2015 77
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