2 Parameters
2.2 List of parameters
SINAMICS G130/G150
460 List Manual (LH2), 07/2016, A5E03263479A
If p1800 is changed while commissioning (p0009, 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).
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).
The following applies for vector drives (p0107):
The pulse frequency can also be reduced when changing over the modulator to an optimized pulse pattern. This is
used to avoid overcontrol.
In the case of chassis power units, two-thirds of the setpoint pulse frequency is displayed in the FLB modulation
range.
Description: Sets the modulator mode.
Value: 0: Automatic changeover SVM/FLB
1: Flat top modulation (FLB)
2: Space vector modulation (SVM)
3: SVM without overcontrol
4: SVM/FLB without overcontrol
5: SVM with pulse frequency reduction
6: SVM/FLB with pulse frequency reduction
7: No edge modulation up to 100 Hz
8: No edge modulation up to 60 Hz
9: Edge modulation
19: Optimized pulse pattern
Dependency: If a sine-wave filter is parameterized as output filter (p0230 = 3, 4), or if the power unit firmware is not able to
calculate edge modulation (r0192.0 = 0), then only space vector modulation without overcontrol can be set as
modulation type (p1802 = 3).
For permanent-magnet synchronous motors and chassis power units, the following applies:
Edge modulation or optimized pulse pattern can only be used, if p1810 bit 2 = 1 is set.
Refer to: r0192, p0230, p7003
Notice: If the pulse patterns are enabled with overmodulation option (p1802 < 3) or edge modulation (p1802 > 6), then the
current actual value correction is automatically activated (p1840.0 = 0).
Note: When modulation modes are enabled that could lead to overmodulation (p1802 = 0, 1, 2, 5, 6), 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.
p1802 = 7, 8 should be used if the drive is operated below 100 Hz or 60 Hz, and it is necessary to avoid changing
over to edge modulation. Above these output frequencies, the modulation depth remains limited so that there the full
output voltage of the edge modulation is not reached.
The setting p1802 = 19 is only released for chassis power units and SIMOTICS FD motors.
r1801[0...1] CO: Pulse frequency / Pulse frequency
VECTOR_G Can be changed: - Calculated: - Access level: 3
Data type: FloatingPoint32 Dyn. index: - Func. diagram: -
P-Group: Displays, signals Unit group: - Unit selection: -
Not for motor type: - Scaling: p2000 Expert list: 1
Min Max Factory setting
- [kHz] - [kHz] - [kHz]
p1802[0...n] Modulator mode / Modulator mode
VECTOR_G Can be changed: T Calculated:
CALC_MOD_LIM_REF
Access level: 3
Data type: Integer16 Dyn. index: DDS, p0180 Func. diagram: -
P-Group: Modulation Unit group: - Unit selection: -
Not for motor type: - Scaling: - Expert list: 1
Min Max Factory setting
0 19 0
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