Ci: Ramp-Function Generator Setting Value / Rfg Setting Value; Ramp-Function Generator Tracking Intensity. / Rfg Track Intens; Ramp-Function Gen. Tolerance For Ramp-Up And Ramp-Down Active - Siemens SINAMICS G150 Manual

2 Parameters
2.2 List of parameters
p1144[0...n]

CI: Ramp-function generator setting value / RFG setting value

VECTOR_G Can be changed: U, T
Data type: Unsigned32 / FloatingPoint32
P-Group: Setpoints
Not for motor type: -
Min
-
Description: Sets the signal source for the ramp-function generator setting value.
Dependency: The signal source for accepting the setting value is set using parameters.
Refer to: p1143
p1145[0...n]

Ramp-function generator tracking intensity. / RFG track intens

VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: Setpoints
Not for motor type: -
Min
0.0
Description: Sets the ramp-function generator tracking.
The output value of the ramp-function generator is tracked (corrected) corresponding to the maximum possible drive
acceleration.
The reference value is the deviation at the speed/velocity controller input that is necessary to ensure that the motor
accelerates at the torque/force limit.
Recommend.: If at least one speed setpoint filter/velocity setpoint filter is activated (p1414), then the ramp-function generator
tracking should be deactivated (p1145 = 0.0). When the speed setpoint filter is activated, the output value of the
ramp-function generator can no longer be tracked (corrected) corresponding to the maximum possible drive
acceleration.
Re p1145 = 0.0:
This value de-activates the ramp-function generator tracking.
Re p1145 = 0.0 ... 1.0:
Generally, these values are not practical. They cause the motor to accelerate below its torque limit. The lower the
selected value, the greater the margin between the controller and torque limit when accelerating.
Re p1145 > 1.0:
The greater the value, the higher the permissible deviation between the speed setpoint and speed actual value.
Notice: If ramp-function generator tracking is activated and the ramp time is set too short, this can cause unsteady
acceleration.
Remedy:
- switch off ramp-function generator tracking (p1145 = 0).
- increase the ramp-up/ramp-down time (p1120, p1121).
Note: In the U/f mode, ramp-function generator tracking is not active.
For SERVO with U/f operation, the following applies:
The complete ramp-function generator is not active, i.e. ramp-up and ramp-down time = 0.
p1148[0...n] Ramp-function gen. tolerance for ramp-up and ramp-down active / RFG tol HL/RL act
VECTOR_G Can be changed: U, T
Data type: FloatingPoint32
P-Group: Setpoints
Not for motor type: -
Min
0.000 [rpm]
Description: Sets the tolerance value for the status of the ramp-function generator (ramp-up active, ramp-down active).
If the input of the ramp-function generator does not change in comparison to the output by more than the entered
tolerance time, then the status bits "ramp-up active" and "ramp-down active" are not influenced.
Dependency: Refer to: r1199
308
Calculated: -
Dyn. index: CDS, p0170
Units group: -
Scaling: p2000
Max
-
Calculated: CALC_MOD_ALL
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
50.0
Calculated: -
Dyn. index: DDS, p0180
Units group: 3_1
Scaling: -
Max
1000.000 [rpm]
List Manual (LH2), 04/2014, A5E03263479A
Access level: 3
Func. diagram: 3060, 3070
Unit selection: -
Expert list: 1
Factory setting
0
Access level: 3
Func. diagram: 3080
Unit selection: -
Expert list: 1
Factory setting
1.3
Access level: 3
Func. diagram: 3060, 3070
Unit selection: p0505
Expert list: 1
Factory setting
19.800 [rpm]
SINAMICS G130/G150