Active Infeed Open-Loop Control - Siemens SINAMICS S120 Function Manual

Infeed
Active Infeed
Identification methods
For additional identification methods, see the List Manual.
S p3410 = 4: An identification run for the total inductance and DC link capacitance
is 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 device (p6320,
p6322). All of the parameters for the infeed module are then automatically
stored in a non-volatile memory.
The infeed continues to operate without any interruption with the new controller
parameters.
S p3410 = 5: 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.
p3410 is automatically set to 0 after an identification run has been successfully
completed.
Note:
The identification using p3410 = 5 is the preferred method.
Closed-loop control may, for example, have to be reset to the factory setting if
the identification process is unsuccessful.
Parameter overview (see List Manual)
S p3410
S p3421
S p3422
S p3620
S p3622
1.1.3

Active Infeed open-loop control

Description
The Active Line Module can be controlled via the BICO interconnection by means
of terminals or the field bus. The operating status is indicated on the operating dis-
play r0002. The missing enable signals for operation (r0002 = 00) are mapped in
parameter r0046. The EP terminals (enable pulses) must be connected in accor-
dance with the Equipment Manual.
1-22
Infeed identification method
Infeed inductance
Infeed DC link capacity
Infeed current controller adaptation lower application threshold
Infeed current controller adaptation reduction factor
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition