Harmonic Currents; Characteristics; Current Derating - Siemens SINAMICS S120 Equipment Manual

Power Modules
5.2 Blocksize Power Modules (PM240-2)
5.2.8.4

Harmonic currents

Note
Limit values for temperature monitoring
Carefully comply with the device-specific information and instructions for maintaining
harmonic current limits.
With respect to maintaining limit values for harmonic currents, the EMC product standard
EN61800-3 for drive systems (PDS) refers to compliance with standards EN 61000-3-2 and
EN 61000-3-12.
Typical harmonic currents
Table 5- 43
Converter
FSA ... FSC, 200 V, 400 V
FSD ... FSF, 200 V
FSD ... FSG, 400 V
FSD ... FSG, 690 V
Values referred to the rated input current input current for U
1)
Values referred to the rated input current
2)
5.2.9

Characteristics

5.2.9.1

Current derating

Derating as a function of the ambient temperature and installation altitude
You can find data regarding derating as a function of the ambient temperature and
installation altitude in Chapter System data (Page 38).
Derating as a function of the pulse frequency
If the Power Modules are operated at a pulse frequency that is above the rated pulse
frequency, then you must reduce the output currents I
Note
You will find the rated pulse frequency in the Technical Data of the relevant Power Module.
136
Typical harmonic currents (%) of the converter
1)
2)
2)
2)
Harmonic number
5th 7th 11th 13th
54 39 11 5.5
28 14 8
37 21 7
34 18 8
1 %
K
, I , I
n H
17th 19th 23rd
5 3 2
6 5 4 3
5 4 3 3
5 4 3 3
and I as follows:
S6 max
Manual, 06/2019, 6SL3097-5AL00-0BP1
25th
2
3
2
2
AC Drive