Siemens SINAMICS G115D

If you must limit the speed depending on the direction of rotation, then you can de󹪝ne speed
limits for each direction.
Parameters
Parameter Description Setting
p1082[0...n] Maximum speed [rpm] Sets the highest possible speed.
Factory setting: 1500
p1083[0...n] CO: Speed limit in positive direc‐
tion of rotation [rpm]
Sets the maximum speed for the positive direction.
Factory setting: 210000
p1085[0...n] CI: Speed limit in positive direction
of rotation
Sets the signal source for the speed limit of the
positive direction.
Factory setting: 1083
p1086[0...n] CO: Speed limit in negative direc‐
tion of rotation [rpm]
Sets the speed limit for the negative direction.
Factory setting: -210000
p1088[0...n] CI: Speed limit in negative direction
of rotation
Sets the signal source for the speed/velocity limit of
the negative direction.
Factory setting: 1086
7.18.6 Ramp-function generator
Overview
The ramp-function generator in the setpoint channel limits the rate change of the speed setpoint
(acceleration). A reduced acceleration reduces the accelerating torque of the motor. In this case,
the motor reduces the load on the mechanical system of the driven machine.
You can select between two di󹪜erent ramp-function generator types:
• Extended ramp-function generator
The expanded ramp-function generator limits not only the acceleration but also the change
in acceleration (jerk) by rounding the setpoint. In this case, the torque does not rise suddenly
in the motor.
• Basic ramp-function generator
The basic ramp-function generator limits the acceleration, however not the rate the
acceleration changes (jerk).
Advanced commissioning
7.18Setpoint processing
SINAMICS G115D Wall Mounted distributed drive
270 Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA