Permissible Range For The Step-Up Factor; Derating Factors; Coolant And Protection Against Condensation - Siemens SINAMICS S120 System Manual

8.6.6.1

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- 24 Step-up factors
Active Line Module
6SL3335-7TG35–8AA4
6SL3335-7TG41-3AA4
6SL3335-7TG41-6AA4
8.6.6.2

Derating factors

When using liquid-cooled Active Line Module, the power must be derated depending on the
coolant temperature, 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)
8.6.7

Coolant and protection against condensation

When using liquid-cooled Active Line Modules, the cooling medium specifications and the
prevention of condensation must be observed.
Also refer to the Low Voltage Engineering Manual: LV Engineering Manual
(http://support.automation.siemens.com/WW/view/en/83180185)
Grid infeed
System Manual, 04/2015, A5E03347436A
8.6 Liquid-cooled Active Line Modules for the grid infeed, chassis format
Active Interface Module
6SL3300-7TG35-8AA0
6SL3305-7TG41-3AA0
6SL3305-7TG41-6AA0
/ U .
DC AC,rms
Line connection Rated
voltage current
500 ... 690 V 575 A
500 ... 690 V 1270 A
500 ... 690 V 1560 A
Device overview
and the rms value of the
DC
Permissible step- Maximum step-
up factor range up factor (p3508)
1,42 ... 2,0 2,0
1,42 ... 2,0 2,0
1,42 ... 2,0 2,0
189