Active Infeed Closed-Loop Control Booksize - Siemens SINAMICS S120 Function Manual

3.1.1

Active Infeed closed-loop control booksize

Overview
The following figure gives an overview of the structure of an Active Infeed control.
Figure 3-1
Active Infeed control for Active Line Modules in Booksize design
Active Line Modules of the Booksize format can be operated in the following modes depending
on the parameterized line voltage (p0210):
● Active Mode
In the Active Mode, the DC link voltage is regulated to a variable setpoint (p3510) which
results in a sinusoidal line current (cos φ = 1). The level of the reactive current is also
controlled and can be specifically defined.
● Smart Mode
Energy recovery capability is maintained in Smart Mode, although there is a lower DC link
voltage in comparison to the Active Mode. The DC link voltage is dependent on the current
line voltage. The Extended Smart Mode can be activated as an option (see Chapter
"Extended Smart Mode (Page 52)").
Drive functions
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Schematic structure of Active Infeed Booksize
Infeed
3.1 Active Infeed
31