Siemens SINAMICS G120P, Operating Instructions Manual

Page: 56 / 496

Electrical installation
4.3 Important safety precautions
Inverter cabinet units
56
Operating Instructions, 12/2014, A5E32923362A
4.3 Important safety precautions
WARNING
Danger to life if the general safety instructions and remaining risks are not carefully
observed
If the general safety instructions and remaining risks are not observed, accidents can occur
involving severe injuries or death.
• Observe the general safety instructions.
•
When assessing the risk, take into account residual risks.
WARNING
Danger to life due to electric shock when using unsuitable fuses
If unsuitable fuses are used, an electric shock can cause severe injury or death.
•
Use only fuses recommended in the technical data.
• Observe the necessary minimum short circuit current for the relevant fuse.
DANGER
Danger to life through electric shock due to the residual charge of the DC-link capacitors
Because of the DC-link capacitors, a hazardous voltage is still present for a while after the
power supply has been switched off.
Contact with live parts can result in death or serious injury.
•
Open the unit only after the time specified on the warning label has elapsed.
• Before starting any work, check that the system is in a voltage-free state by measuring
all terminals, also to ground.
Note
Touch protection
The cabinet units for opened cabinet door have touch protection according to BGV A3 in
accordance with EN 50274.
These protective covers may need to be removed during installation and connection
procedures. Once work has been completed, the protective covers must be properly refitted.