Siemens Sinamics S120 Manual page 98

Cabinet design
6.5 Electrical connection
Danger to life through electric shock due to incorrectly installed DC link bridges
Incorrectly installed DC link bridges at the left-hand end of the drive line-up can cause an
electric shock.
• For all 50 mm wide modules, remove
• For all components that are 75 mm wide or wider, the DC link bridges may neither be
For 50 mm wide modules, the DC link bridge cannot be swung inwards.
1)
Smart Line modules that are 50 mm wide do not have a DC link bridge.
2)
The DC link bridge guarantees the mechanical stability of the DC link busbars.
3)
Danger to life through electric shock due to missing DC link side covers
There is a danger of an electric shock through contact when the side covers of the DC link
are missing.
• Mount the side covers on the first and last component in the drive line-up.
You can order missing side covers (article number: 6SL3162-5AA00-0AA0).
NOTICE
Material damage due to loose power connections
Insufficient tightening torques or vibration can result in faulty electrical connections. This
can cause fire damage or malfunctions.
• Tighten all power connections with the specified tightening torques, e.g. line supply
• Check the tightening torques of all power connections at regular intervals and tighten
98
WARNING
link bridges including the screws. Do not tighten the screws without the DC link bridges.
swung over to the left nor removed
WARNING
connection, motor connection, DC link connections.
them when required. This applies in particular after transport.
(exception: Smart Line Module
1)
.
3)
Power Units in Booksize C/D-Type Format
Manual, 01/2017, 6SL3097-4AC20-0BP1
), remove the DC
2)