Siemens SINAMICS G115D - Page 275

4. Switch o󹪜 the motor.
5. Evaluate your drive response.
– If the motor decelerates too slowly, then reduce the ramp-down time.
The minimum ramp-down time that makes sense depends on your particular application.
For an excessively short ramp-down time, the converter either reaches the motor current,
or the DC link voltage in the converter becomes too high.
– Extend the ramp-down time if the motor is braked too quickly or the converter goes into
a fault condition when braking.
6. Repeat steps 1 … 5 until the drive behavior meets the requirements of the machine or plant.
You have set the extended ramp-function generator.
❒
Basic ramp-function generator
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When compared to the extended ramp-function generator, the basic ramp-function
generator has no rounding times.
Parameters for setting the basic ramp-function generator
Parameter Description Setting
p1082[0...n] Maximum speed [rpm] Sets the highest possible speed.
Factory setting: 1500
p1115 Ramp-function generator selection Sets the ramp-function generator type.
0: Basic ramp-function generator
1: Extended ramp-function generator (factory set‐
ting)
Advanced commissioning
7.18Setpoint processing
SINAMICS G115D Wall Mounted distributed drive
Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA 273