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: Sets the ramp time to inject the current setpoint for changing into open-loop controlled operation.
The current setpoint is generated from p1610 and p1611.
Note: The parameter is only applicable for closed-loop controlled reluctance motors.
Description: Sets the static torque setpoint for sensorless vector control.
This parameter is entered as a percentage referred to the rated motor torque (r0333).
For sensorless vector control, when the motor model is shut down, an absolute current is impressed. p1610
represents the maximum load that occurs at a constant setpoint speed.
Notice: p1610 should always be set to at least 10 % higher than the maximum steady-state load that can occur.
Note: For p1610 = 0%, a current setpoint is calculated that corresponds to the no-load case (ASM: rated magnetizing
current).
For p1610 = 100 %, a current setpoint is calculated that corresponds to the rated motor torque.
Negative values are converted into positive setpoints in the case of induction and permanent-magnet synchronous
motors.
Description: Enters the dynamic torque setpoint for the low-speed range for sensorless vector control.
This parameter is entered as a percentage referred to the rated motor torque (r0333).
Note: When accelerating and braking p1611 is added to p1610 and the resulting total torque is converted into an
appropriate current setpoint and controlled.
For pure accelerating torques, it is always favorable to use the torque pre-control of the speed controller (p1496).
Description: Displays the actual maximum possible electromotive force (EMF) of the separately-excited synchronous motor.
Dependency: The value is the basis for the flux setpoint.
The maximum possible EMF depends on the following factors:
- Actual DC link voltage (r0070).
- Maximum modulation depth (p1803).
- Field-generating and torque-generating current setpoint.
p1601[0...n] Current injection ramp time / I_inject t_ramp
Access level: 3 Calculated: p0340 = 1,3 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: -
Min Max Factory setting
1 [ms] 10000 [ms] 20 [ms]
p1610[0...n] Torque setpoint static (sensorless) / M_set static
Access level: 2 Calculated: - Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: 6700, 6721, 6722,
6726
Min Max Factory setting
-200.0 [%] 200.0 [%] 50.0 [%]
p1611[0...n] Additional acceleration torque (sensorless) / M_suppl_accel
Access level: 2 Calculated: p0340 = 1 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Units group: - Unit selection: - Func. diagram: 6700, 6721, 6722,
6726
Min Max Factory setting
0.0 [%] 200.0 [%] 30.0 [%]
r1614 EMF maximum / EMF max
Access level: 4 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: p2001 Dyn. index: -
Units group: 5_1 Unit selection: p0505 Func. diagram: 6725
Min Max Factory setting
- [Vrms] - [Vrms] - [Vrms]