Pi/P Switching Using Acceleration Setpoint - Siemens SINAMICS V90 Operating Instructions Manual

Tuning
9.9 PI/P switching
Note
For detailed information about speed setpoint, refer to "Configuring speed setpoint
(Page 174)".
9.9.4

PI/P switching using acceleration setpoint

When the motor acceleration exceeds the preset acceleration rate (p29143), the speed loop
is switched from PI control to P control.
Parameter settings
Parameter Value range
p29140 0 to 5
p29143 0 to 30000
p29120[0] 0 to 999999
p29121[0] 0 to 100000
Note
Speed setpoint
For detailed information about speed setpoint, refer to "Configuring speed setpoint
(Page 174)".
Acceleration
For detailed information about acceleration, refer to "Setting fixed position setpoint
(Page 158)" of the internal position control mode.
250
Setting value Unit
4 -
20 (default) rev/s
2
0.3 (default) Nms/rad
15 (default) ms
Description
Switches PI control to P control using acceleration set-
point.
Acceleration threshold for automatically triggering PI to P
switch.
Speed loop gain 1
Speed loop integral time 1
Operating Instructions, 07/2015, 6SL3298-0AV60-0BP0
SINAMICS V90, SIMOTICS S-1FL6