Siemens SINAMICS G120 - r1119 CO: Ramp-function generator setpoint at the input; RFG setp at inp; p1120[0...n] Ramp-function generator ramp-up time; RFG ramp­up time; p1121[0...n] Ramp-function generator ramp-down time; RFG ramp­down time

SINAMICS G120 Control Units CU240B-2/CU240E-2
List Manual (LH11), 01/2016, A5E33839529
167
2 Parameters
2.2 List of parameters
Description: Displays the setpoint at the input of the ramp-function generator.
Notice: The parameter may be protected as a result of p0922 or p2079 and cannot be changed.
Note: The setpoint is influenced by other functions, e.g. skip (suppressed) speeds, minimum and maximum limits.
Description: The ramp-function generator ramps-up the speed setpoint from standstill (setpoint = 0) up to the maximum speed
(p1082) in this time.
Dependency: Refer to: p1082, p1123
Note: The ramp-up time can be scaled via connector input p1138.
The parameter is adapted during the rotating measurement (p1960 > 0). This is the reason that during the rotating
measurement, the motor can accelerate faster than was originally parameterized.
For U/f control and sensorless vector control (see p1300), a ramp-up time of 0 s does not make sense. The setting
should be based on the startup times (r0345) of the motor.
Description: Sets the ramp-down time for the ramp-function generator.
The ramp-function generator ramps-down the speed setpoint from the maximum speed (p1082) down to standstill
(setpoint = 0) in this time.
Further, the ramp-down time is always effective for OFF1.
Dependency: The parameter is pre-assigned depending on the size of the power unit.
Refer to: p1082, p1123
Note: For U/f control and sensorless vector control (see p1300), a ramp-down time of 0 s does not make sense. The setting
should be based on the startup times (r0345) of the motor.
Description: Sets the ramp-down time for the ramp-function generator.
The ramp-function generator ramps-down the speed setpoint from the maximum speed (p1082) down to standstill
(setpoint = 0) in this time.
Further, the ramp-down time is always effective for OFF1.
Dependency: Refer to: p1082, p1123
Note: For U/f control and sensorless vector control (see p1300), a ramp-down time of 0 s does not make sense. The setting
should be based on the startup times (r0345) of the motor.
r1119 CO: Ramp-function generator setpoint at the input / RFG setp at inp
Access level: 3 Calculated: - Data type: FloatingPoint32
Can be changed: - Scaling: p2000 Dyn. index: -
Unit group: 3_1 Unit selection: p0505 Func. diagram: 3050, 3070, 6300,
8022
Min Max Factory setting
- [rpm] - [rpm] - [rpm]
p1120[0...n] Ramp-function generator ramp-up time / RFG ramp-up time
Access level: 1 Calculated: - Data type: FloatingPoint32
Can be changed: C(1), U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: 3060, 3070
Min Max Factory setting
0.000 [s] 999999.000 [s] 10.000 [s]
p1121[0...n] Ramp-function generator ramp-down time / RFG ramp-down time
PM230
PM230_STO
Access level: 1 Calculated: - Data type: FloatingPoint32
Can be changed: C(1), U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: 3060, 3070
Min Max Factory setting
0.000 [s] 999999.000 [s] 30.000 [s]
p1121[0...n] Ramp-function generator ramp-down time / RFG ramp-down time
PM240
PM250, PM260
Access level: 1 Calculated: - Data type: FloatingPoint32
Can be changed: C(1), U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: 3060, 3070
Min Max Factory setting
0.000 [s] 999999.000 [s] 10.000 [s]