Current Setpoint Filter - Siemens SINAMICS S120 Function Manual

4.11

Current setpoint filter

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
Bandstop and low-pass with reduction are converted into the parameters of the general 2nd
order filter via the STARTER commissioning tool. 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.
As long as the parameter setting p1699 = 1 is active, the background calculation of the filter
data is not performed, even when filter parameters are changed. Only with parameter setting
p1699 = 0, is the calculation performed.
Function diagrams (see SINAMICS S120/S150 List Manual)
• 6710
Overview of important parameters (see SINAMICS S120/S150 List Manual)
• p1655[0...n]
• p1656[0...n]
• p1657[0...n]
• p1658[0...n]
• p1659[0...n]
• p1660[0...n]
• p1661[0...n]
• p1662[0...n]
• p1663[0...n]
• p1664[0...n]
• p1665[0...n]
• p1666[0...n]
• p1699
Drive functions
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Vector control - Current setpoint filter
CI: Current setpoint filter natural frequency tuning
Current setpoint filter activation
Current setpoint filter 1 type
Current setpoint filter 1 denominator natural frequency
Current setpoint filter 1 denominator damping
Current setpoint filter 1 numerator natural frequency
Current setpoint filter 1 numerator damping
Current setpoint filter 2 type
Current setpoint filter 2 denominator natural frequency
Current setpoint filter 2 denominator damping
Current setpoint filter 2 numerator natural frequency
Current setpoint filter 2 numerator damping
Filter data acceptance
Vector control
4.11 Current setpoint filter
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