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

6.6.2.4

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 beforehand
in the technical data.
Table 6- 16 Derating factor of the output current as a function of the pulse frequency for devices with a rated pulse fre-
quency of 2 kHz
Article No. Type rating
6SL3325-... [kW]
1TE32-1AA3 110
1TE32-6AA3 132
1TE33-1AA3 160
1TE35-0AA3 250
Table 6- 17 Derating factor of the output current as a function of the pulse frequency for units with a rated pulse frequency
of 1.25 kHz
Article No. Type rating
6SL3325-... [kW]
1TE37-5AA7 400
1TE41-0AA7 560
1TE41-2AA7 710
1TE41-4AA7 800
1TG31-0AA3 90
1TG31-5AA3 132
1TG32-2AA3 200
1TG33-3AA3 315
1TG34-7AA7 450
1TG35-8AA7 560
1TG38-1AA7 800
1TG41-0AA7 1000
1TG41-3AA7 1200
1TG41-6AA7 1500
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.
Water-cooled chassis power units for common cooling circuits
Manual, 08/2017, 6SL3097-4AM10-0BP0
Output current
at 2 kHz
[A]
Supply voltage DC 510 ... 720 V (line voltage 3 AC 380 ... 480 V)
210
260
310
490
Output current
at 1.25 kHz
[A]
Connection voltage DC 510 ... 720 V (line voltage 3 AC 380 ... 480 V)
745
985
1260
1405
Connection voltage DC 675 ... 1035 V (line voltage 3 AC 500 ... 690 V)
100
150
215
330
465
575
810
1025
1270
1560
Derating factor at the pulse frequency
2.5 kHz 4 kHz
95% 82%
95% 83%
97% 88%
94% 78%
Derating factor at the pulse frequency
2 kHz 2.5 kHz 4 kHz
83% 72% 64%
92% 87% 70%
92 % 87 % 70 %
97% 95% 74%
92% 88% 71%
90% 84% 66%
92% 87% 70%
89% 82% 65%
92% 87% 67%
91% 85% 64%
97% 95% 71%
91% 86% 64%
87% 79% 55%
87% 79% 55%
Motor Modules
6.6 Technical specifications
5 kHz 7.5 kHz
74% 54%
74% 54%
78% 54%
71% 53 %
5 kHz 7.5 kHz
60% 40%
60% 50%
60 % 50%
60 % 50%
60% 40%
55% 35%
60% 40%
55% 40%
55% 35%
50% 35%
55% 35%
50% 30%
40% 25%
40% 26%
8 kHz
50%
50%
50%
50%
8 kHz
--
47 %
47 %
47 %
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