Siemens SIMOTICS S-1FL6

Tuning
9.9 PI/P switching
SINAMICS V90, SIMOTICS S-1FL6
334 Operating Instructions, 04/2019, A5E36037884-007
Timing diagram
9.9
PI/P switching
Note
PI/P switching
Function of PI/P switching is not
available for the
T
mode (torque control mode).
The functions of auto
-tuning and gain switching must be disabled so that the function of PI/P
switching can be available.
The PI/P switching will respond with a delay time of several milliseconds.
The function of PI/P switching is used to switch from
PI
(Proportional/Integral) control of
speed controller to
P
(Proportional) control. With this function, you can:
● shorten the position setting time (for the position control mode).
● avoid overshooting of actual speed value during acceleration or deceleration (for the
speed control mode).
● avoid unnecessary torque when the target position is at a mechanical limitation (for the
position control mode).
Selection of a switching mode for PI/P switching
Five switching modes in total are available for PI/P switching:
● using torque setpoint
● using an external digital input signal (G-CHANGE)