Current Setpoint Filter - Siemens Sinamics S120 Function Manual

4.11

Current setpoint filter

Description
You can parameterize the two current setpoint filters 1 and 2 connected in series as follows:
● Low-pass 2nd order (PT2): -40 dB/decade)
● Bandstop
● Low-pass with reduction
● General 2nd order filter
The STARTER commissioning tool converts band-stop and low-pass filters with reduction
into the parameters of the general 2nd order filter. The phase frequency curve is shown
alongside the amplitude log frequency curve. A phase shift results in a control system delay
and should be kept to a minimum.
You activate the current setpoint filters with p1656[0...n].0 = 1 and p1656[0...n].1 = 1. You
set the current setpoint filter parameters with p1657 to p1666.
Function diagrams (see SINAMICS S120/S150 List Manual)
● 6710 Current setpoint filters
Overview of important parameters (see SINAMICS S120/S150 List Manual)
● p1655[0...n] CI: Current setpoint filter natural frequency tuning
● p1656[0...n] Current setpoint filter activation
● p1657[0...n] current setpoint filter 1st type
● p1658[0...n] current setpoint filter 1 denominator natural frequency
● p1659[0...n] current setpoint filter 1 denominator damping
● p1660[0...n] current setpoint filter 1 numerator natural frequency
● p1661[0...n] current setpoint filter 1 numerator damping
● p1662[0...n] current setpoint filter 2nd type
● p1663[0...n] current setpoint filter 2 denominator natural frequency
● p1664[0...n] current setpoint filter 2 denominator damping
● p1665[0...n] current setpoint filter 2 numerator natural frequency
● p1666[0...n] current setpoint filter 2 numerator damping
Drive functions
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Vector control
4.11 Current setpoint filter
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