[Principle]

The acceleration and deceleration ratio or acceleration and deceleration are set in accordance with the fuzzy rule from the distance to the overload restriction level and the start slopes of current and voltage.

Current

Revolution speed

Overload restriction level

Restriction angle

Distance

➤➤

 

 

Slope

 

Time

Setting process

The current grows.

Fuzzy control

Slope

Distance

Membership function

Acceleration ratio, acceleration determination,deceleration ratio, deceleration determination

Time

A-12

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Image 124
Hitachi J300U Series instruction manual Principle, Setting process