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

Infeed
2.1 Active Infeed
2.1.1

Active Infeed closed-loop control booksize

Figure 2-1
Active Infeed closed-loop control for Active Line Modules booksize
The Active Line Module can be operated in two different modes depending on the
parameterized line supply 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 DC-link voltage setpoint (p3510) and the control type are preset as follows during
commissioning in line with the connection voltage (p0210):
Table 2- 1 Presetting the control type and DC-link voltage booksize
Supply voltage p0210 [V]
Control type p3400.0
Vdc_set p3510 [V]
Voltages specified for the Smart Mode are derived from the rectified line supply voltage. The DC-link voltage setpoint
1)
(p3510) has no effect in this control mode.
26
Schematic structure of Active Infeed booksize
380...400
"0" = Active Mode
600
401...415 416...440
625 562-594
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
460 480
"1" = Smart Mode
621 648
1) 1)
Drive functions
1)