List of parameters
Parameters
1-485
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
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 (de-rating, refer to r0067).
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).
For sensorless operation (p1404 = 0 or p1300 = 20), the following conditions apply:
p1800 = 1 / (2 * p0115[0]) or
p1800 >= n / p0115[0], n = 1, 2, ...
For motors with a low power rating (< 300 W) we recommend that p1800 is set acc. to the second condition.
Description: Sets the drive converter switching frequency.
This parameter is preset to the rated converter value when the drive is first commissioned.
Dependency: The pulse frequency can, depending on the current controller sampling time (p0115[0]) assume the following val-
ues.
a) p1800 = 1000 / (p0115[0] * 2) and
b) p1800 = 1000 * n / p0115[0] with n = 1, 2, 3, ...
Example:
p0115[0] = 250 µs --> p1800 = 2, 4, 8, 12, 16 kHz
Possible setting values can be taken from r0114 (if p0009 = p0010 = 0).
Refer to: r0110, r0111, p0112, p0113, r0114, p0115, p0230, p1817
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 (de-rating, refer to r0067).
If a sinusoidal 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).
Description: Displays the actual converter switching frequency.
Note: The selected pulse frequency (p1800) may be reduced if the drive converter has 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 overdriving.
p1800[0...n] Pulse frequency / Pulse frequency
VECTOR Can be changed: U, T Calculated: - Access level: 2
Data type: Floating Point Dynamic index: DDS, p0180 Func. diagram: -
P-Group: Modulation Units group: - Unit selection: -
Not for motor type: - Expert list: 1
Min Max Factory setting
1.000 [kHz] 16.000 [kHz] 4.000 [kHz]
r1801 Actual pulse frequency / Pulse freq actual
VECTOR Can be changed: - Calculated: - Access level: 3
Data type: Floating Point Dynamic index: - Func. diagram: -
P-Group: Displays, signals Units group: - Unit selection: -
Not for motor type: - Expert list: 1
Min Max Factory setting
- [kHz] - [kHz] - [kHz]
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