Siemens SINAMICS G120C USS/MB Operating Instructions Manual page 415

Temperature reduction as a function of the installation altitude
The permissible inverter ambient temperature is reduced above an installation altitude of
1000 m.
Figure 10-4
Maximum current at low speeds
NOTICE
Negative impact on the inverter service life as a result of overheating.
Loading the inverter with a high output current and at the same time with a low output
frequency can cause the current-conducting components in the inverter to overheat.
Excessively high temperatures can damage the inverter or have a negative impact on the
inverter service life.
● Never operate the inverter continuously with an output frequency = 0 Hz.
● Only operate the inverter in the permissible operating range.
Figure 10-5
SINAMICS G120C converter
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34263257B AF
Temperature reduction as a function of the installation altitude
Permissible operating range of the inverter
10.8 Restrictions for special ambient conditions
Technical data
415