17. FULLY CLOSED LOOP SYSTEM
17 - 2
The following table shows the functions of each control mode.
Control Description
Feature Position is controlled according to the servo motor-side data.
Advantage
Since this control is insusceptible to machine influence (such as machine resonance),
the gains of the servo amplifier can be raised and the settling time shortened.
Semi closed loop control
Disadvantage
If the servo motor side is at a stop, the side may be vibrating or the load-side accuracy
not obtained.
Feature Position is controlled according to the servo motor-side data and load-side data.
Dual feedback control
Advantage
Control is performed according to the servo motor-side data during operation, and
according to the load side-data at a stop in sequence to raise the gains during operation
and shorten the settling time. A stop is made with the load-side accuracy.
Feature Position is controlled according to the load-side data.
Advantage The load-side accuracy is obtained not only at a stop but also during operation.
Fully closed loop control
Disadvantage
Since this control is susceptible to machine resonance or other influences, the gains of
the servo amplifier may not rise.
To Next Page
Loading...
Need help?
General
