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SINAMICS G120C
List Manual (LH13), 04/2014, A5E33840768B AA
165
2 Parameters
2.2 List of parameters
Dependency: In U/f characteristic operating mode only bit 7 is relevant.
For active motor model feedback (see p1784), the Lh adaptation is internally deactivated automatically.
Note: ASM: Induction motor
PEM: Permanent magnet synchronous motor
When selecting the compensation of the valve interlocking via Rs (bit 7), the compensation in the gating unit is de-
activated and is instead taken into account in the motor model.
In order that the correction values of the Rs, Lh and kT adaptation (selected using Bit 0 ... Bit 2) are correctly
accepted when changing over the drive data set, a dedicated motor number must be entered into p0826 for each
different motor.
Re bit 12 (only for synchronous motors and bit 6 = 1):
The pole position identification is only carried out after power on and after the motor has coasted down. The switch-
off speed p1226 should be as low as possible. If the power unit is switched off when the motor is stationary, then the
next time that the power unit is switched on, the old angle is used. The precondition applies that while the power unit
is switched off the motor does not rotate.
The duration of the pole position identification is shortened using bit 13. As a consequence, the pole wheel angle
error can be slightly greater.
Description: Sets the scaling for model fault feedback.
Note: Feeding back the measured model fault to the model states increases the control stability and makes the motor
model rugged against parameter errors.
When feedback is selected (p1784 > 0), Lh adaptation is not effective.
Description: Displays the corrective value for the Lh adaptation of the motor model for an induction motor (ASM).
Dependency: Refer to: p0826, p1780
Note: The adaptation result is reset if the magnetizing inductance of the induction motor is changed (p0360, r0382).
Description: Sets the pulse frequency for the converter.
This parameter is pre-set to the rated converter value when the drive is first commissioned.
Dependency: Refer to: p0230
Note: The maximum and minimum possible pulse frequency is also determined by the power unit being used (minimum
pulse frequency: 2 kHz or 4 kHz).
When the pulse frequency is increased, depending on the particular power unit, the maximum output current can be
reduced (derating, refer to r0067).
13 Fast pulsed pole position identification Yes No -
14 Delay of the precontrol speed to the motor
model
Yes No -
15 RESM: Linear Q flux model active not active -
p1784[0...n] Motor model feedback scaling / MotMod fdbk scal
Access level: 4 Calculated: p0340 = 1,3,4 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
0.0 [%] 1000.0 [%] 0.0 [%]
r1787[0...n] Motor model Lh adaptation corrective value / MotMod Lh corr
Access level: 4 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
- [mH] - [mH] - [mH]
p1800[0...n] Pulse frequency setpoint / Pulse freq setp
Access level: 2 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: 8014
Min Max Factory setting
2.000 [kHz] 16.000 [kHz] 4.000 [kHz]
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