Low Frequency Operation; Data Regarding The Power Loss In Partial Load Operation - Siemens SINAMICS G115D Operating Instructions Manual

Technical data

10.3 Low frequency operation

10.3 Low frequency operation
The converter can only be operated with reduced output current at low output frequencies.
NOTICE
Reduced converter service life as a result of overheating
Loading the converter with a high output current and at the same time with a low output
frequency can cause the current-conducting components in the converter to overheat.
Excessively high temperatures can damage the converter or reduce the converter service
life.
• Never operate the converter continuously with an output frequency = 0 Hz.
• Only operate the converter in the permissible operating range.
• Continuous operation (green area in the figure)
Operating state that is permissible for the complete operating time.
• Short-time operation (yellow area in the figure)
Operating state that is permissible for less than 2% of the total operating time.
• Sporadic short-time operation (red area in the figure)
Operating state that is permissible in very short and seldom operating conditions for less
than 1% of the total operating time.
10.4

Data regarding the power loss in partial load operation

You can find data regarding power loss in partial load operation in the Internet:
Partial load operation (https://support.industry.siemens.com/cs/ww/en/view/94059311)
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Operating Instructions, 09/2020, FW V4.7 SP13, A5E48681219B
SINAMICS G115D distributed drive