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

High overload
The base load current for high overload IH is based on a load duty cycle of 150% for 60 s or
160% for 10 s with a load duty duration of 300 s.
Figure 3-38
3.2.7.2

Current de-rating 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 3-23 Derating factor of the output current as a function of the pulse frequency
Order No.
6SL3310-... for a pulse frequency of
1TE32-1AA0
1TE32-6AA0
1TE33-1AA0
1TE33-8AA0
1TE35-0AA0
Equipment Manual AC Drive
Manual, (GH6), 03/2006 Edition, 6SL3097-2AL00-0BP0
High overload
Output current
2 kHz [A]
for a pulse frequency of
210
260
310
380
490
Permissible
output current for a pulse frequency of
2.5 kHz
as a % of In
95 %
95 %
97 %
96 %
94 %
3.2 Power Modules Chassis
Derating factor
for a pulse frequency of
4 kHz
82 %
83 %
88 %
87 %
78 %
Power Modules
Derating factor
8 kHz
50 %
50 %
50 %
50 %
50 %
3-57