Siemens SINAMICS S110 - p1148[0...n] Ramp-function gen., tolerance for ramp-up and ramp-down active; RFG tol HL;RL act; r1149 CO: Ramp-function generator, acceleration; RFG acceleration; r1150 CO: Ramp-function generator speed setpoint at the output; RFG n_set at outp

Parameter
List of parameters
1-210
© Siemens AG 2012 All Rights Reserved
SINAMICS S110 List Manual (LH7), 06/2012, 6SL3097-4AP10-0BP3
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.: p1145 = 0.0:
This value de-activates the ramp-function generator tracking.
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.
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 acceler-
ation.
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.
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
Description: Displays the acceleration of the ramp-function generator.
Dependency: Refer to: p1145
Description: Displays the setpoint at the output of the ramp-function generator.
p1148[0...n] Ramp-function gen., tolerance for ramp-up and ramp-down active / RFG tol HL/RL act
SERVO_S110-CAN
(Extended set),
SERVO_S110-DP
(Extended set),
SERVO_S110-PN
(Extended set)
Can be changed: U, T Calculated: - Access level: 3
Data type: FloatingPoint32 Dynamic index: DDS, p0180 Func. diagram: 3060, 3070
P-Group: Setpoints Units group: 3_1 Unit selection: p0505
Not for motor type: - Scaling: - Expert list: 1
Min Max Factory setting
0.000 [rpm] 1000.000 [rpm] 19.800 [rpm]
r1149 CO: Ramp-function generator, acceleration / RFG acceleration
SERVO_S110-CAN
(Extended set),
SERVO_S110-DP
(Extended set),
SERVO_S110-PN
(Extended set)
Can be changed: - Calculated: - Access level: 3
Data type: FloatingPoint32 Dynamic index: - Func. diagram: 3060, 3070
P-Group: Setpoints Units group: 39_1 Unit selection: p0505
Not for motor type: - Scaling: p2007 Expert list: 1
Min Max Factory setting
- [rev/s²] - [rev/s²] - [rev/s²]
r1150 CO: Ramp-function generator speed setpoint at the output / RFG n_set at outp
SERVO_S110-CAN
(Extended set),
SERVO_S110-DP
(Extended set),
SERVO_S110-PN
(Extended set)
Can be changed: - Calculated: - Access level: 3
Data type: FloatingPoint32 Dynamic index: - Func. diagram: 1550, 3080
P-Group: Setpoints Units group: 3_1 Unit selection: p0505
Not for motor type: - Scaling: p2000 Expert list: 1
Min Max Factory setting
- [rpm] - [rpm] - [rpm]