Current Derating As A Function Of The Pulse Frequency - Siemens SINAMICS S120 Equipment Manual

Power Modules
4.7 Technical specifications
4.7.5

Current derating as a function of the pulse frequency

When the pulse frequency is increased, the derating factor of the output current must be
taken into account.
This derating factor must be applied to the currents specified in the technical data.
Table 4- 12 Derating factor of the output current as a function of the pulse frequency
Article No. Type rating
6SL3315-... [kW]
1TE32-1AA3 110
1TE32-6AA3 132
1TE33-1AA3 160
1TE35-0AA3 250
Note
Derating factors for pulse frequencies in the range between fixed values
For pulse frequencies in the range between the specified fixed values, the relevant derating
factors can be determined by linear interpolation.
Maximum output frequencies achieved by increasing the pulse frequency
By multiplying the rated pulse frequency with a multiple integer, the following output
frequencies can be achieved taking into account the derating factors:
Table 4- 13
Table 4- 14
Depending on the system configuration, higher frequencies are possible.
1)
104
Output current
at 2 kHz
[A] 2.5 kHz
210 95 %
260 95 %
310 97 %
490 94 %
Maximum output frequencies achieved by increasing the pulse frequency in VECTOR
mode
Pulse frequency
[kHz]
2
2.5
4
Maximum output frequencies achieved by increasing the pulse frequency in SERVO
mode
Pulse frequency
[kHz]
2
4
Derating factor at the pulse frequency
4 kHz 5 kHz
82 % 74 %
83 % 74 %
88 % 78 %
78 % 71 %
Maximum output frequency
Maximum output frequency
300 / 550
Water-cooled chassis power units for common cooling circuits
Manual, 08/2017, 6SL3097-4AM10-0BP0
7.5 kHz 8 kHz
54 % 50 %
54 % 50 %
54 % 50 %
53 % 50 %
[Hz]
160
200
320
[Hz]
300
1)