Co: Pulse Frequency / Pulse Frequency; Modulator Mode / Modulator Mode - Siemens SINAMICS G150 Manual

Notice: The pulse frequency p1800 can also be asynchronously set to the current controller clock cycle (0.05 kHz increment).
To do this, p1810.12 must be set to 1 (secondary condition, see p1810).
Effects:
- switching over the gating unit (p1810.2).
- activating the current actual value correction (p1840.0).
- minimum pulse frequency 1000 * 0.5 / p0115[0].
- maximum pulse frequency 1000 * 2 / p0115[0].
- fluctuating deadtimes and dynamic performance in the current control loop.
- increased level of current ripple in the current display.
Note: The maximum possible pulse frequency is also determined by the power unit being used.
When the pulse frequency is increased, depending on the particular power unit, the maximum output current can be
reduced (derating, refer to r0067).
The maximum pulse frequency for operation with output reactors (see p0230) is 4 kHz for booksize and blocksize
power units, for chassis power units it is twice the rated pulse frequency (2.5 kHz or 4 kHz).
If a sine-wave filter is parameterized as output filter (p0230 = 3), then the pulse frequency cannot be set below the
minimum value required for the filter. If an external sine-wave filter is parameterized, (p0230 = 4), then the minimum
pulse frequency is calculated as follows:
f_puls_min = 1.6 / ( 2 * Pi * root(p0233 * p0234 * p0235) ), with p0233 in H and p0234 in F
In this case, the pulse frequency must be a multiple of the inverse value of the current controller sampling time
(p0115[0]).
If a sine-wave filter is parameterized as output filter (p0230 = 3), then the pulse frequency cannot be changed below
the minimum value required for the filter.
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).
r1801[0...1]

CO: Pulse frequency / Pulse frequency

VECTOR_G Can be changed: -
Data type: FloatingPoint32
P-Group: Displays, signals
Not for motor type: -
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).
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.
p1802[0...n]

Modulator mode / Modulator mode

VECTOR_G Can be changed: T
Data type: Integer16
P-Group: Modulation
Not for motor type: -
Min
0
Description: Sets the modulator mode.
Value: 0:
1:
2:
3:
4:
SINAMICS G130/G150
List Manual (LH2), 04/2014, A5E03263479A
Automatic changeover SVM/FLB
Flat top modulation (FLB)
Space vector modulation (SVM)
SVM without overcontrol
SVM/FLB without overcontrol
Calculated: -
Dyn. index: -
Units group: -
Scaling: p2000
Max
- [kHz]
Calculated:
CALC_MOD_LIM_REF
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
19
2 Parameters
2.2 List of parameters
Access level: 3
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
- [kHz]
Access level: 3
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
0
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