Yaskawa MP940 Reference Manual User Manual

Page 131

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Mechatrolink Function

MotionSuite™ MP940 Machine Controller Reference Manual

4-40

Operation mode switching is executed according to the motion setting
parameter Operation Mode Setting (OWC000 Bit0 ~ Bit4).

2. P/PI switching of the servo amplifier (SGDH) speed loop is possible

during operation.

A usage example is given below.

• To Suppress Overshoot During Acceleration
• To suppress Undershoot and Shorten Settling Time

Speed loop P/PI switching is executed according to the motion setup
parameter RUN Command (OBC0011).

3. Parameter change is possible during operation.

The following parameters can still be changed during operation by the ladder
or motion program.

No speed loop P/PI control switching

Speed loop P/PI control switching

Changeable Parameters

Parameter Type

Change Method

Target Position

Still changeable by the motion setting parameter position reference setting
(OLC012)

Speed

Still changeable by the motion setting parameters speed reference setting
(OWC015) and speed reference setting (OWC022).

Accel/Decel Time
Constant

Still changeable by the motion setting parameters linear acceleration time con-
stant (OWC00C) and linear deceleration time constant (OWC00D).

Position Loop Gain

Still changeable by the motion setting parameter position loop gain (OWC010).

Feed Forward Gain

Still changeable by the motion setting parameter feed forward gain (OWC010).

Overshoot

Undershoot

Motor

Speed

Time

Motor

Speed

Time

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