Current De-Rating Depending On The Pulse Frequency - Siemens SINAMICS S120 Equipment Manual

Motor Modules Chassis-2
7.8 Technical data
S6 duty cycle
The base load current for duty cycle I
The duty cycle for I
frequency of 2.5 kHz, if p0290 is set = 12 (automatic pulse frequency and output current
reduction for a thermal power unit overload).
Figure 7-14
7.8.3

Current de-rating depending on 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 for Motor Modules Chassis-2.
Table 7- 14 Derating factor of the output current as a function of the pulse frequency for devices with a rated pulse fre-
quency of 2.5 kHz
Article No. Type rating
6SL3321-... [kW]
1TE36-6AA0
1TE37-4AA0
1TE41-0AA0
1TE41-1AA0
1TE41-2AA0
318
is valid for a pulse frequency of 2 kHz. It is also valid for a pulse
S6
S6 duty cycle with initial load with a duty cycle duration of 60 s
Output current
at 2.5 kHz
[A]
Connection voltage 510 ... 720 V DC (line voltage 3 AC 380 ... 480 V)
315 655
355 740
500 975
560 1075
630 1200
is based on a duty cycle of 200 % for 6 s.
S6
Derating factor at the pulse frequency
4 kHz 5 kHz
78% 67%
78% 67%
78% 67%
78% 67%
78% 67%
7.5 kHz
48%
48%
48%
48%
48%
Air-cooled chassis power units
Manual, 07/2019, 6SL3097-4AE00-0BP9
8 kHz
45%
45%
45%
45%
45%