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

Infeed
2.1 Active Infeed
2.1.2

Active Infeed closed-loop control chassis

Figure 2-2
Operating mode of Active Infeed closed-loop control for Active Line Modules chassis.
Active Line Modules chassis only function in 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 DC-link voltage setpoint (p3510) is preset depending on the supply voltage (p0210)
using the equation p3510 = 1.5 x p0210.
Commissioning
The device supply voltage (p0210) must be parameterized during commissioning. The
necessary line filter (p0220) is preset.
When it is first switched on with a new/modified network, an automatic controller setting
should be implemented using the line / DC link identification routine (p3410).
Note
In a supply system without regenerative feedback capability (e.g. generators), regenerative
operation must be inhibited via the binector input p3533.
28
Schematic structure of Active Infeed chassis
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Drive functions