10.4 Gain switching
Overview
The function of gain switc
hing is used to switch between two sets of scaling factors.
With the gain switching function, you can implement the following operations:
• Increase the gains during servo lock and decrease gains to reduce noise during rotation.
• Increase the gains during settling to shorten the stop settling time.
• Ensure the stability of the servo system when the load inertia moment ratio varies greatly
during a stop.
Note
Se
t the scaling factors accor
ding to the following formulas to obtain expected servo gains:
• Position loop gain = p29178*p29110 (fast PTI mode)
• Speed loop gain = p1460*p29120
• Speed loop integral time = p1462/p29121
Requirement
• Do not use the function in the t
orque control mode.
• Disable the functions of autotuning.
Description of function
The function of gain switching is disabled by default (p29130 = 0), and only scaling factor 1 is
valid in this case.
Tuning
10.4Gain switching
SINAMICS S200 pulse train servo drive system with SIMOTICS S-1FL2
302 Operating Instructions, 11/2023, FW V6.3, A5E51646767B AA
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