Siemens Sinamics S120 Manual page 514

DC link components
8.1 Safety instructions for DC link components
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
• 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 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 (order number: 6SL3162-5AA00-0AA0).
Danger to life due to high leakage currents caused by an interrupted external protective
conductor
The drive components conduct a high leakage current via the protective conductor.
Touching conductive parts when the protective conductor is interrupted can result in death
or serious injury.
• Ensure that the external protective conductor satisfies at least one of the following
Danger of an accident due to missing warning labels in the national language.
Missing warning labels in the national language can result in death or serious injury.
• Attach the component warning labels in the national language.
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WARNING
bridge, including the screws. Do not tighten the screws without the DC link bridges.
swung over to the left nor removed
WARNING
WARNING
conditions:
– It has been laid so that it is protected against mechanical damage.
– If it is a single conductor, it has a cross-section of at least 10 mm² Cu.
– If it is a conductor of a multi-conductor cable, it has a cross-section of at least
2.5 mm² Cu.
– It has a second protective conductor in parallel with the same cross-section.
– It complies with the local regulations for equipment with increased leakage current.
Cables laid within control cabinets or closed machine housings are considered to be
1)
adequately protected against mechanical damage.
1)
WARNING
(exception: Smart Line Module
1)
.
3)
Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6
), remove the DC link
2)
1)
Booksize Power Units