p1802[0...n] Modulator mode / Modulator mode
Access level: 3 Calculated:
CALC_MOD_LIM_REF
Data type: Integer16
Can be changed: T Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: -
Min:
0
Max:
10
Factory setting:
0
Description: Sets the modulator mode.
Value: 0: Automatic changeover SVM/FLB
2: Space vector modulation (SVM)
3: SVM without overcontrol
4: SVM/FLB without overcontrol
10: SVM/FLB with modulation depth reduction
Dependency: If a sine-wave filter is parameterized as output filter (p0230 = 3, 4), then only space vector modulation without
overcontrol can be selected as modulation type (p1802 = 3). This does not apply to power units PM260.
p1802 = 10 can only be set for power units PM230 and PM240 and for r0204.15 = 0.
See also: p0230, p0500
Note
When modulation modes are enabled that could lead to overmodulation (p1802 = 0, 2, 10), 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 Calculated:
CALC_MOD_LIM_REF
Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: 6723
Min:
20.0 [%]
Max:
150.0 [%]
Factory setting:
106.0 [%]
Description: Defines the maximum modulation depth.
Dependency: See also: 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: 3 Calculated: CALC_MOD_REG Data type: FloatingPoint32
Can be changed: T, U Scaling: - Dynamic index: DDS, p0180
Unit group: - Unit selection: - Function diagram: -
Min:
0.0 [ms]
Max:
10000.0 [ms]
Factory setting:
0.0 [ms]
Description: Sets the filter time constant for the DC link voltage.
This time constant is used to calculate the modulation depth.
Parameters
7.3 Parameters
SINAMICS G120XA converter
538 Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB
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