Sharp CP-SR421 Instrukcja Użytkownika Pobierz pdf (Strona 339)

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16. FULLY CLOSED LOOP SYSTEM (available in the future)

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The following table shows the functions of each control mode.

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Feature Position is controlled according to the servo motor-side data.

Advantag

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

Disadvant

age

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

Advantag

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.

Advantag

The load-side accuracy is obtained not only at a stop but also during operation.

Fully closed loop control

Disadvant

age

Since this control is susceptible to machine resonance or other influences, the gains of

the servo amplifier may not rise.

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