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Functions, monitoring and protective functions
9.4 Extended functions
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
693
9.4.8
Parameterizable bandstop filters for the active infeed
Description
With the "Additional controls" function module, parameterizable bandstop filters can be used
with whose help path resonances can be attenuated.
The main application of these bandstop filters is in weak networks in which the resonance
point of the line filter can drop to one quarter of the controller frequency.
The parameterizable bandstop filters for the Active Infeed can be parameterized via the
expert list:
●
Fixed setpoints (p2900 ff)
●
Negative phase-sequence system control (p3639 ff)
●
Bandstop filters:
–
Output voltage setpoint value filter; activation with p5200.0 = 1
–
Actual current value filter; activation with p5200.2 = 1
–
Vdc-current value filter; activation with p1656.4 = 1
Commissioning
The "Additional controls" function module can be activated by running the commissioning
wizard. Parameter r0108.03 indicates whether the function module has been activated.
Function diagrams
FP 8940
Controller modulation depth reserve/controller DC link voltage (p3400.0 = 0)
FP 8946
Current pre-control/current controller/gating unit (p3400.0 = 0)
Содержание SINAMICS S150 NEMA
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