Siemens SINAMICS G120 - Overload Capability of the Converter

Technical data
6.3 Overload capability of the converter
Power Module PM240-2
76 Hardware Installation Manual, 01/2020, A5E33294624B AL
Property
Version
Cooling Forced air cooling AF, according to EN 60146
Cooling air Clean and dry air
Noise emission
Maximum 75 db(A)
1)
Increased ruggedness regarding temperature range and relative humidity; therefore better than 3K3 according to IEC
60721-3-3: 2002
2)
Observe the permissible ambient operating temperatures for the Control Unit and the Operator Panel (IOP-2 or BOP-2).
6.3 Overload capability of the converter
Overload capability is the property of the converter to temporarily supply a current that is
higher than the rated current to accelerate a load. Two typical load cycles are defined to
clearly demonstrate the overload capability: "Low Overload" and "High Overload"
Definitions
Base load
Constant load between the accelerating phases of the drive
Low Overload
High Overload
•
LO base load input current
Permissible input current for a "Low
Overload" load cycle
•
LO base load output current
Permissible output current for a "Low
Overload" load cycle
•
LO base load power
Rated power based on the LO base load
output current
•
HO base load input current
Permissible input current for a "High
Overload" load cycle
•
HO base load output current
Permissible output current for a "High
Overload" load cycle
•
HO base load power
Rated power based on the HO base
load output current
If not specified otherwise, the power and current data in the technical data always refer to a
load cycle according to Low Overload.
We recommend using the "SIZER" engineering software to select the converter.
You can find additional information about SIZER on the Internet:
Download Sizer
(http://support.automation.siemens.com/WW/view/en/10804987/130000)