Siemens SINAMICS S120 Manual page 46

System overview
2.11 Derating data
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.
Additional information is provided in the "SINAMICS Low Voltage Engineering Manual"
provided on the customer DVD supplied with the unit.
Maximum output frequencies achieved by increasing the pulse frequency
The adjustable pulse frequencies - and therefore the output frequencies that can be
achieved with the factory-set current controller clock cycles - are listed below.
Table 2- 5 Maximum output frequencies achieved by increasing the pulse frequency
Current controller
clock cycle
T
I
250 µs
1)
400 µs
2)
As factory setting, the following devices have a current controller clock cycle of 250 µs - and a pulse frequency of 2 kHz:
1)
- 510 ... 720 V DC: ≤250 kW / 490 A, 6SL3725-1TE41-4AS3
As factory setting, the following devices have a current controller cycle of 400 µs and a pulse frequency of 1.25 kHz:
2)
- 510 ... 720 V DC: ≥ 315 kW / 605 A, except 6SL3725-1TE41-4AS3
- 675 ... 1035 V DC: All power ratings
With the "High output frequencies" license, which can be ordered as option J01 on the CompactFlash card for
3)
SINAMICS S120, the maximum output frequency is increased up to 650 Hz.
Refer to the Low Voltage Configuration Manual for current controller clock cycles deviating
from the factory setting.
44
Adjustable pulse fre-
quencies
f
p
2 kHz
4 kHz
8 kHz
1.25 kHz
2.50 kHz
5.00 kHz
7.50 kHz
Maximum achievable output frequency f
V/f operating mode Vector operating mode
166 Hz
333 Hz
550 Hz
3)
104 Hz
208 Hz
416 Hz
550 Hz
3)
A
Servo mode
166 Hz 333 Hz
333 Hz 550 Hz
480 Hz 550 Hz
104 Hz
208 Hz
300 Hz
300 Hz
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A
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