Siemens SINAMICS G115D Operating Instructions Manual page 219

Parameter
p1134[0...n]
p1135[0...n]
p1136[0...n]
p1137[0...n]
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
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
4. Switch off the motor.
SINAMICS G115D distributed drive
Operating Instructions, 09/2020, FW V4.7 SP13, A5E48681219B
Description
Ramp-function generator, round-
ing-off type
OFF3 ramp-down time [s]
OFF3 initial rounding-off time [s]
OFF3 final rounding-off time [s]
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.
the initial rounding.
Advanced commissioning
6.15 Setpoint processing
Setting
Sets the smoothed response to the OFF1 com-
mand or the reduced setpoint for the extended
ramp-function generator.
0: Continuous smoothing (factory setting)
1: Discontinuous smoothing
Sets the ramp-down time from the maximum
speed down to zero speed for the OFF3 com-
mand.
Factory setting: 0
Sets the initial rounding-off time for OFF3 for the
extended ramp generator.
Factory setting: 0
Sets the final rounding-off time for OFF3 for the
extended ramp generator.
Factory setting: 0
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