List of Parameters
Parameters
1-141
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Description: 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 V/f control and encoderless vector control (see p1300), ramp-down times of 0 s are not recommended. The set-
ting should be based on the startup times (r0345) of the motor.
Description: 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 V/f control and encoderless vector control (see p1300), ramp-down times of 0 s are not recommended. The set-
ting should be based on the startup times (r0345) of the motor.
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, or the hibernation function is activated, then it is not per-
missible to disable the interconnection to the relevant status word (r2349, r2399).
Notice: The parameter may be protected as a result of p0922 or p2079 and cannot be changed.
Note: In the case of encoderless vector control, the ramp-function generator must not be bypassed, other than indirectly
by means of wiring with r2349 or r2399.
Description: Sets the minimum ramp-up time.
The ramp-up time (p1120) is limited internally to this minimum value.
Dependency: Refer to: p1082
Note: For V/f control and encoderless vector control (see p1300), ramp-down times of 0 s are not recommended. The set-
ting should be based on the startup times (r0345) of the motor. If the maximum speed p1082 changes, p1123 is
recalculated.
p1121[0...n] Ramp-function generator ramp-down time / RFG ramp-down time
PM230 Access level: 1 Calculated: - Data type: FloatingPoint32
Can be changed: C(1), U, T Scaling: - Data set: DDS, p0180
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: - Data set: DDS, p0180
Min Max Factory setting
0.000 [s] 999999.000 [s] 10.000 [s]
p1122[0...n] BI: Bypass ramp-function generator / Bypass RFG
Access level: 4 Calculated: - Data type: U32 / Binary
Can be changed: U, T Scaling: - Data set: CDS, p0170
Min Max Factory setting
- - 0
p1123[0...n] Ramp-function generator minimum ramp-up time / RFG t_RU min
Access level: 4 Calculated: p0340 = 1 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Data set: DDS, p0180
Min Max Factory setting
0.000 [s] 999999.000 [s] 0.000 [s]
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