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Parameters
Table 6-86
Number
p1120[D]
p1121[D]
p1130[D]
p1131[D]
p1134[D]
p1135[D]
p1136[D]
p1137[D]
p1138[C]
p1139[C]
p1140[C]
p1141[C]
p1142[C]
p1143[C]
p1144[C]
p1148[D]
r1149
Further information is provided in the parameter list.
Setting the extended ramp-function generator
Procedure
1. Enter the highest possible speed setpoint.
2. Switch on the motor.
3. Evaluate your drive response.
– If the motor accelerates too slowly, then reduce the ramp-up time.
– If the motor accelerates too fast, then extend the ramp-up time.
– Increase the initial rounding if the acceleration is jerky.
– In most applications, it is sufficient when the final rounding is set to the same value as the
4. Switch off the motor.
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC
Additional parameters to set the extended ramp-function generator
Name
Ramp-function generator ramp-up time
Ramp-function generator ramp-down time
Ramp-function generator initial rounding time
Ramp-function generator final rounding time
Ramp-function generator rounding type
OFF3 ramp-down time
OFF3 initial rounding time
OFF3 final rounding time
CI: Ramp-function generator ramp-up time scaling
CI: Ramp-function generator ramp-down time scaling
BI: Enable ramp-function generator/disable ramp-function
generator
BI: Continue ramp-function generator/freeze ramp-function
generator
BI: Enable setpoint/inhibit setpoint
BI: Accept ramp-function generator setting value
CI: Ramp-function generator setting value
Ramp-function generator tolerance for ramp-up and ramp-
down active
CO: Ramp-function generator acceleration
An excessively short ramp-up time means that the motor will reach its current limiting
when accelerating, and will temporarily not be able to follow the speed setpoint. In this
case, the drive exceeds the set time.
initial rounding.
Advanced commissioning
6.5 Setpoints and setpoint processing
Factory setting
Dependent on the
converter
0 (continuous
smoothing)
Dependent on the
converter
0 s
1
1
Dependent on the
converter
1
0
0
19.8 rpm
-
347
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