Siemens SINAMICS G120 Operating Instructions Manual page 272

Advanced commissioning
6.17 Setpoint calculation
Parameter
p1130
p1131
p1134
p1135
p1136
p1137
You can find more information in function diagram 3070 and in the parameter list of the List
Manual.
Setting the extended ramp-function generator
Procedure
Proceed as follows to set the extended ramp-function generator:
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.
– We recommend that you set the final rounding to the same value as the initial rounding.
4. Switch off the motor.
272
Description
Ramp-function generator initial rounding time (Factory setting depends on the Power
Module)
Initial rounding for extended ramp-function generator. The value applies for ramp up
and ramp down.
Ramp-function generator final rounding time (Factory setting depends on the Power
Module)
Final rounding for extended ramp-function generator. The value applies for ramp up
and ramp down.
Ramp-function rounding type (factory setting: 0)
0: Continuous smoothing
1: Discontinuous smoothing
OFF3 ramp-down time (factory setting depends on the Power Module)
OFF3 initial rounding time (Factory setting depends on the Power Module)
Initial rounding time for OFF3 for an extended ramp-function generator.
OFF3 final rounding time (factory setting: 0 s)
Final rounding for OFF3 for the extended ramp-function generator
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.
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE