Overload Capability Of The Converter - Siemens SINAMICS G120 Installation Manual

Technical data

6.3 Overload capability of the converter

Property
Cooling
Cooling air
Noise emission
Increased ruggedness regarding temperature range and relative humidity; therefore better than 3K3 according to IEC
1)
60721-3-3: 2002
Observe the permissible ambient operating temperatures for the Control Unit and the Operator Panel (IOP-2 or BOP-2).
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
• 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
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:
(http://support.automation.siemens.com/WW/view/en/10804987/130000)
76
Version
Forced air cooling AF, according to EN 60146
Clean and dry air
Maximum 75 db(A)
Download Sizer
High Overload
• 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
Hardware Installation Manual, 01/2020, A5E33294624B AL
Power Module PM240-2