Siemens SINAMICS G120D List Manual page 233

If p1800 is changed during commissioning (p0010 > 0), then it is possible that the old value will no longer be able to
be set. The reason for this is that the dynamic limits of p1800 have been changed by a parameter that was set when
the drive was commissioned (e.g. p1082).
r1801[0...1] CO: Pulse frequency / Pulse frequency
Access level: 2
Can be changed: -
Units group: -
Min
- [kHz]
Description: Display and connector output for the actual converter switching frequency.
Index: [0] = Actual
[1] = Modulator minimum value
Note: The selected pulse frequency (p1800) may be reduced if the drive converter has an overload condition (p0290).
p1802[0...n] Modulator mode / Modulator mode
Access level: 3
Can be changed: T
Units group: -
Min
0
Description: Sets the modulator mode.
Value: 0:
2:
3:
4:
Dependency: If a sine-wave filter is parameterized as output filter (p0230 = 3, 4), then only space vector modulation without over-
control can be selected as modulation type (p1802 = 3).
Refer to: p0230, p0500
Note: When modulation modes are enabled that could lead to overmodulation (p1802 = 0, 2), the modulation depth must
be limited using p1803 (default p1803 < 100 %). The higher the overmodulation, the greater the current ripple and
torque ripple.
When changing p1802[x], the values for all of the other existing indices are also changed.
p1803[0...n] Maximum modulation depth / Modulat depth max
Access level: 3
Can be changed: U, T
Units group: -
Min
20.0 [%]
Description: Defines the maximum modulation depth.
Dependency: Default setting PM260: 103 %.
Refer to: p0500
Note: p1803 = 100% is the overcontrol limit for space vector modulation (for an ideal drive converter without any switching
delay).
p1806[0...n] Filter time constant Vdc correction / T_filt Vdc_corr
Access level: 4
Can be changed: U, T
Units group: -
Min
0.0 [ms]
Description: Sets the filter time constant of the DC link voltage used to calculate the modulation depth.
© Siemens AG 2012 - 2013 All Rights Reserved
SINAMICS G120D List Manual (LH14), 01/2013
Automatic changeover SVM/FLB
Space vector modulation (SVM)
SVM without overcontrol
SVM/FLB without overcontrol
Calculated: -
Scaling: p2000
Unit selection: -
Max
- [kHz]
Calculated: p0340 = 1,3,5
Scaling: -
Unit selection: -
Max
4
Calculated: p0340 = 1,3,5
Scaling: -
Unit selection: -
Max
150.0 [%]
Calculated: p0340 = 1,3
Scaling: -
Unit selection: -
Max
10000.0 [ms]
Parameters
List of parameters
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: -
Factory setting
- [kHz]
Data type: Integer16
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
4
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: 6723
Factory setting
106.0 [%]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: -
Factory setting
0.0 [ms]
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