User Manual

SINAMICS G120 CU230P-2 Control Units

List Manual (LH9), 04/2014, A5E33838102B AA

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2 Parameters

2.2 List of parameters

Description: Controlled reluctance motor:

Sets the lower flux limit to evaluate the optimum flux characteristic p2970ff.

The value is referred to the rated motor flux (p0357 * r0331).

Description: Sets the smoothing time for the flux setpoint.

Description: Sets the smoothing time for the flux setpoint in the field-weakening range

Recommend.: Smoothing should be especially used if there is no regenerative feedback into the line supply. This means that the

DC link voltage can quickly increase in regenerative operation

Note: Only the flux setpoint rise is smoothed

Description: Sets the scaling of the pre-control characteristic for the start of field weakening.

For values above 100 % and for partial load situations, the field weakening starts at higher speeds.

Note: If the start of field weakening is shifted to lower speeds, then the voltage reserve is increased for partial load

situations.

If the start of field weakening is shifted to higher speeds, the voltage reserve is appropriately reduced so that for fast

load changes, it can be expected that this will have a negative impact on the dynamic performance.

Description: Sets the proportional gain for the flux controller.

Note: The value is automatically pre-assigned dependent on the motor when the drive system is first commissioned.

When calculating controller parameters (p0340 = 4), this value is re-calculated.

p1581[0...n] Flux reduction factor / Flux red factor

Access level: 3 Calculated: - Data type: FloatingPoint32