Safety Instructions For Line Filters - Siemens SINAMICS S120 Combi Manual

Line-side power components
3.6 Line filters
3.6.2

Safety instructions for line filters

Electric shock due to residual charge
A hazardous voltage is still present for up to 5 minutes after the power supply has been
switched off. Contact with live parts can result in death or serious injury.
• Wait at least 5 minutes after switching off.
• Measure the voltage before starting any work.
Electric shock 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
Fire hazard due to overheating because of inadequate ventilation clearances
Inadequate ventilation clearances can cause overheating with a risk for personnel through
smoke development and fire. This can also result in more downtimes and Line Modules
may have a reduced service life.
• It is absolutely essential that you maintain ventilation clearances according to the table
NOTICE
Damage to the line filter due to interchanging the input and output
The line filter can be damaged if the input and output connections are interchanged.
• Connect the incoming line supply cable to LINE L1, L2, L3.
• Connect the outgoing cable to line reactor at LOAD L1´, L2´, L3´.
38
WARNING
WARNING
conditions:
– It has been laid so that it is protected against mechanical damage.
– If it is a single cable, 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.
WARNING
Ventilation clearances above and below the component (Page 294).
1)
SINAMICS S120 Combi
Manual, 11/2017, 6SL3097-4AV00-0BP7