Siemens SINAMICS G120X - Current Derating as a Function of the Pulse Frequency

11.5.4 Current derating as a function of the pulse frequency
400 V converters
Frame
size
Rated power
based on LO
(kW)
Output current (A) (at 400 V, 45 °C ambient temperature) for a pulse frequency of
2 kHz 4 kHz 6 kHz 8 kHz 10 kHz 12 kHz 14 kHz 16 kHz
FSA 0.75 2.2 2.2 1.87 1.54 1.32 1.1 0.99 0.88
1.1 3.1 3.1 2.635 2.17 1.86 1.55 1.395 1.24
1.5 4.1 4.1 3.485 2.87 2.46 2.05 1.895 1.64
2.2 5.9 5.9 5.015 4.13 3.54 2.95 2.655 2.36
3 7.7 7.7 6.545 5.39 4.62 3.85 3.465 3.08
FSB 4 10.2 10.2 8.67 7.14 6.12 5.1 4.59 4.08
5.5 13.2 13.2 11.22 9.24 7.92 6.6 5.94 5.28
7.5 18 18 15.3 12.6 10.8 9 8.1 7.2
FSC 11 26 26 22.1 18.2 15.6 13 11.7 10.4
15 32 32 27.2 22.4 19 18 14.4 12.8
FSD 18.5 38 38 32.3 26.6 22.8 19 17.1 15.2
22 45 45 38.2 31.5 27 22.5 20.2 18
30 60 60 51 42 36 30 27 24
37 75 75 63.7 52.5 45 37.5 33.7 30
FSE 45 90 90 76.5 63 54 45 40.5 36
55 110 110 93.5 77 66 55 49.5 44
FSF 75 145 145 123.2 101.5 87 72.5 65.2 58
90 178 178 151 124.6 107 89 80.1 71.2
110 205 143.5 103 82 -- -- -- --
132 250 175 125 100 -- -- -- --
FSG 160 302 211.4 151 121 -- -- -- --
200 370 259 185 148 -- -- -- --
250 477 334 239 191 -- -- -- --
FSH 315 585 468
1)
-- -- -- -- -- --
355 655 524
1)
-- -- -- -- -- --
400 735 588
1)
-- -- -- -- -- --
FSJ 450 840 672
1)
-- -- -- -- -- --
500 910 728
1)
-- -- -- -- -- --
560 1021 817
1)
-- -- -- -- -- --
The rated output currents in bold refer to the default pulse frequency at 45 °C ambient temperature.
1)
In the factory setting, the converter starts with a pulse frequency of 4 kHz and reduces automatically the pulse frequency to
the associated required frequencies when loaded. When the load decreases, the pulse frequency is increased automatically
up to 4 kHz.
Technical data
11.5 Derating data
SINAMICS G120X converter
1096 Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC