Siemens SINAMICS S120 Manual page 107

High leakage currents when the protective conductor in the line feeder cable is
interrupted
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 due to inadequate ventilation clearances
Inadequate ventilation clearances can cause overheating of components with subsequent
fire and smoke. This can cause serious injury or even death. This can also result in increased
failures and shorter service lives for devices/systems.
• Observe the cooling clearances above and in front of the component, which are specified
Electric shock due to unexpectedly long discharge time
If you operate the Active Interface Module without an Active Line Module, the discharge
time extends to more than 20 minutes after the supply voltage has been disconnected. As a
result, dangerous voltage may unexpectedly be present at the terminals of the Active
Interface Module.
Contact with live parts can result in death or serious injury.
• Only operate the Active Interface Module together with an Active Line Module.
Air-cooled chassis power units
Equipment Manual, 06/2020, 6SL3097-5AE00-0BP3
WARNING
conditions:
– It has been installed so that it is protected against mechanical damage.
– For an individual core, 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 from mechanical damage.
WARNING
in the dimension drawings.
WARNING
Line-side power components
4.7 Active Interface Modules Chassis-2
1)
105