Line Supply And Dc Link Identification Routine For Smart Infeed Booksize - Siemens SINAMICS S120 Function Manual

2.2.1

Line supply and DC link identification routine for Smart Infeed Booksize

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.
Note
If the line supply environment or the components connected to the DC link change (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 an optimum controller setting.
When the identification function is activated, alarm A06400 is output.
Note
While the identification routine is running, it is not permissible that other loads are switched-
in/switched-out.
Note
The line supply and DC link identification routine is not permissible for Smart Line Modules of
the Chassis type.
Identification methods
Identification
method
p3410 = 4
p3410 = 5
Preferred
p3410 is automatically set to 0 when one of the two identification routines (p3410 = 4 or
p3410 = 5) is successfully completed.
For additional identification methods, see the SINAMICS S120/S150 List Manual.
It may be necessary to reset the closed-loop controller to the factory settings if an
identification run was unsuccessful, for example.
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Description
An identification run for the total inductance and DC link capacitance is initiated
when the pulses are next enabled (2 measuring routines with different current mag-
nitudes). Data determined during the identification routine (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 (p6320, p6322). All
infeed parameters are then automatically stored in non-volatile memory.
The infeed continues to operate without interruption with the new controller parame-
ters.
The same measurements and write operations are always carried out for p3410 = 4.
However, before the first identification run, the parameter values for line inductance
and DC link capacitance are reset (p3421 = p0223 and p3422 = p0227) and the
coarse settings are made for the controller.
Infeed
2.2 Smart Infeed
45