Note
0/1 signal:
The ramp-function generator output is immediately (without delay) set to the setting value of the ramp-function
generator.
1 signal:
The setting value of the ramp-function generator is effective.
1/0 signal:
The input value of the ramp-function generator is effective. The ramp-function generator output is adapted to the input
value using the ramp-up time or the ramp-down time.
0 signal:
The input value of the ramp-function generator is effective.
p1144[0...n]
CI: Ramp-function generator setting value / RFG setting value
Access level: 3
Calculated: -
Data type: Unsigned32 /
FloatingPoint32
Can be changed: T, U
Scaling: p2000
Dynamic index: CDS, p0170
Unit group: -
Unit selection: -
Function diagram: 3070
Min:
-
Max:
-
Factory setting:
29641[0]
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.
See also: p1143
p1145[0...n]
Ramp-function generator tracking intensity. / RFG track intens
Access level: 4
Calculated: -
Data type: FloatingPoint32
Can be changed: T, U
Scaling: -
Dynamic index: DDS, p0180
Unit group: -
Unit selection: -
Function diagram: 3080
Min:
0.0
Max:
50.0
Factory setting:
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 controller/velocity controller input that is necessary to ensure that the
motor accelerates at the torque/force limit.
Recommendation:
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.
For p1145 = 0.0:
This value deactivates the ramp-function generator tracking.
For 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.
For 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:
- deactivate ramp-function generator tracking (p1145 = 0).
- increase the ramp-up/ramp-down time (p1120, p1121).
Parameters
7.2 Parameter list
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC
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