Line And Dc Link Identification - Siemens Sinamics S120 Function Manual

Infeed
1.1 Active Infeed
● p3410 Infeed identification method
● p3508 Infeed step-up factor maximum
● p3510 Infeed DC link voltage setpoint
● p3533 BI: Infeed, inhibit regenerative operation
● p3610 Infeed reactive current fixed setpoint
● p3611 CI: Infeed reactive current supplementary setpoint
1.1.4

Line and DC link identification

The characteristic line supply and DC link quantities are determined using the automatic
parameter identification routine. They provide the basis to optimally set the controllers in the
Line Module.
An optimal setting of the current and voltage control is achieved with the help of the line
supply and DC link identification routine. The dynamic response of the current control can be
adjusted with p3560.
Note
If the line supply environment changes or the components connected to the DC link (e.g.
after installation of the equipment at the customer's site or after expanding the drive line-up),
the line supply/DC link identification routine should be repeated with p3410 = 5. Only then
can it be guaranteed that the infeed operates with the optimum controller settings.
When the identification function is activated, alarm A06400 is output.
Identification methods
For additional identification methods, see the SINAMICS S120/S150 List Manual.
● p3410 = 4: An identification run for the total inductance and DC link capacitance is
● p3410 = 5: The same measurements and write operations are always carried out for
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initiated when the pulses are next enabled (two measuring routines with different current
magnitudes). Data determined during identification (r3411 and r3412) is entered into
p3421 and p3422 and the controller is recalculated. At the same time, the parameters for
current controller adaptation are determined (p3620, p3622). All infeed parameters are
then automatically stored in non-volatile memory.
The infeed continues to operate without interruption on the new controller parameters.
p3410 = 4. Before the first identification run, however, the parameter values for line
inductance and DC link capacitance are reset (p3421 = p0223 and p3422 = p0227).
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Drive functions