Permissible Range For The Step-Up Factor; Derating Factors - Siemens SINAMICS S120 System Manual

8.4.6.1

Permissible range for the step-up factor

The step-up factor (HSF) is the quotient of the DC link voltage U
grid connection voltage: HSF = U
As a result of the permissible range for the step-up factor, for some devices it is not possible
to simultaneously use the maximum AC connection voltage range and the maximum DC
voltage range. When utilizing the maximum AC connection voltage range, either the
maximum DC voltage range should be restricted, or when utilizing the maximum DC voltage
range, the maximum AC voltage range should be restricted corresponding to the permissible
range for the step-up factor. The presetting for the setpoint of the DC link voltage (p3510)
corresponds to a step-up factor (HSF) of 1.5; the restrictions as listed in the following table
apply. The maximum step-up factor (p3508) must be appropriately adapted.
Table 8- 13 Step-up factors
Active Line Module
6SL3330-7TE35-0AA4 6SL3300-7TE35-0AA0
6SL3330-7TE41-0AA4 6SL3300-7TE41-4AA0
6SL3330-7TE41-4AA4 6SL3300-7TE41-4AA0
6SL3330-7TG41-0AA4 6SL3300-7TG41-3AA0
6SL3330-7TG41-3AA4 6SL3300-7TG41-3AA0
8.4.6.2

Derating factors

When using the Active Line Module, the power must be derated depending on the ambient
temperature, installation altitude and the cosφ.
Also refer to the Low Voltage Engineering Manual: LV Engineering Manual
(http://support.automation.siemens.com/WW/view/en/83180185)
An application description is available to determine the available reactive power: Application
description reactive power compensation
(http://support.automation.siemens.com/WW/view/en/105643094)
Grid infeed
System Manual, 04/2015, A5E03347436A
8.4 Air-cooled Active Line Modules for the grid infeed, chassis format
Active Interface Module
/ U .
DC AC,rms
Line connec- Rated current Permissible step-
tion voltage
320 ... 480 V 490 A
320 ... 480 V 985 A
320 ... 480 V 1405 A
500 ... 690 V 1025 A
500 ... 690 V 1270 A
Device overview
and the rms value of the
DC
Maximum step-up
up factor range factor (p3508)
1,42 ... 3,0 3,0
1,42 ... 2,3 2,3
1,42 ... 2,3 2,3
1,42 ... 2,0 2,0
1,42 ... 2,0 2,0
165