Siemens SINAMICS S120 System Manual page 146

Device overview
8.4 Air-cooled Active Line Modules for the grid infeed, chassis format
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.
Fire hazard due to overheating because of inadequate ventilation clearances
Inadequate ventilation clearances can cause overheating with a risk to personnel due to
smoke and fire. This can also result in more downtimes and reduced service lives of Line
Modules.
• Observe the cooling clearances above, below, and in front of the Line Modules which
Fire hazard due to overheating when the total length of the power cables is exceeded
Overheating and a fire can result when the total length of the power cables is exceeded.
• Ensure that the total length of the power cables (motor supply cables and DC link
146
WARNING
conditions:
– It has been laid so that it is protected against mechanical damage.
– For an individual conductor, it has a cross-section of at least 10 mm² Cu.
– As 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.
WARNING
WARNING
are specified in the dimension drawings.
CAUTION
cables) does not exceed the values specified in the technical data.
1)
System Manual, 04/2015, A5E03347436A
Grid infeed