Safety Instructions For High Frequency Modules - Siemens SINAMICS S120 System Manual

High Frequency Modules

4.2 Safety instructions for High Frequency Modules

4.2 Safety instructions for High Frequency Modules
Danger to life if the fundamental safety instructions and remaining risks are not carefully
observed
The non-observance of the fundamental safety instructions and residual risks stated in
Chapter 1 can result in accidents with severe injuries or death.
• Adhere to the fundamental safety instructions.
• When assessing the risk, take into account remaining risks.
Danger of death caused by high discharge currents when the external protective conductor
is interrupted
Drive components conduct high discharge currents via the protective conductor. When the
protective conductor is interrupted, touching live components can result in electric shock,
which can lead to death or serious injuries.
• Ensure that the external protective conductor complies with at least one of the following
Danger of death due to electric shock resulting from residual charge of the DC link
capacitors
As a result of the DC link capacitors, a hazardous voltage is present for up to 5 minutes
after the power supply has been switched off.
Touching live components results in death or severe injury.
• Only open the DC link protective cover after 5 min. has elapsed.
• Before starting any work, measure the voltage at the DC link terminals DCP and DCN.
Danger to life as a result of electric shock when the DC link protective cover is open
Touching live components results in death or severe injury.
• Only operate the components with the protective cover of the DC link components
34
WARNING
WARNING
conditions:
– It is laid protected against mechanical damage.
– If it consists of a single conductor, it has a cross section of at least 6 mm² Cu.
– As a core of a multi-core cable, it has a cross section of at least 2.5 mm² Cu.
– It has a parallel, second protective conductor with the same cross-section.
– It corresponds to the local regulations for equipment with increased leakage current.
Cables routed in control cabinets or enclosed machine enclosures are considered to
1)
be adequately protected against mechanical damage.
DANGER
DANGER
closed.
1)
System Manual, (SH2), 04/2015, 6SL3097-4AH10-0BP3
High Frequency Drive