Siemens SINAMICS G120D CU240D-2 DP Manual page 174

2 Parameters
2.2 List of parameters
Note: Another ramp-function generator type can only be selected when the motor is at a standstill.
r1119 CO: Ramp-function generator setpoint at the input / RFG setp at inp
Access level: 3
Can be changed: -
Unit group: 3_1
Min
- [rpm]
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.
p1120[0...n] Ramp-function generator ramp-up time / RFG ramp-up time
Access level: 1
Can be changed: C(1), U, T
Unit group: -
Min
0.000 [s]
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.
p1121[0...n] Ramp-function generator ramp-down time / RFG ramp-down time
Access level: 1
Can be changed: C(1), U, T
Unit group: -
Min
0.000 [s]
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.
p1122[0...n] BI: Bypass ramp-function generator / Bypass RFG
Access level: 4
Can be changed: U, T
Unit group: -
Min
-
Description: Sets the signal source for bypassing the ramp generator (ramp-up and ramp-down times = 0).
Caution: If the technology controller is operated in mode p2251 = 0 (technology controller as main speed setpoint), then it is
not permissible to disable the interconnection to its status word (r2349).
Notice: The parameter may be protected as a result of p0922 or p2079 and cannot be changed.
Note: In the case of sensorless vector control, the ramp-function generator must not be bypassed, other than indirectly by
means of interconnection with r2349.
174
Calculated: -
Scaling: p2000
Unit selection: p0505
Max
- [rpm]
Calculated: -
Scaling: -
Unit selection: -
Max
999999.000 [s]
Calculated: -
Scaling: -
Unit selection: -
Max
999999.000 [s]
Calculated: -
Scaling: -
Unit selection: -
Max
-
Data type: FloatingPoint32
Dyn. index: -
Func. diagram: 3050, 3070, 6300,
8022
Factory setting
- [rpm]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: 3060, 3070
Factory setting
10.000 [s]
Data type: FloatingPoint32
Dyn. index: DDS, p0180
Func. diagram: 3060, 3070
Factory setting
10.000 [s]
Data type: U32 / Binary
Dyn. index: CDS, p0170
Func. diagram: 2505
Factory setting
0
SINAMICS G120D
List Manual (LH14), 01/2016, A5E33842313