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Control Mode

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ASDA-A3

6

6.2.4 S-curve filter (Position)

The S-curve filter for Position commands smoothes the motion command in PR mode. The filter

makes the speed and acceleration continuous and reduces jerking, resulting a smoother

mechanical operation. If the load inertia increases, the motor operation is influenced by friction

and inertia when the motor starts or stops rotating. Setting a larger acceleration / deceleration

constant for the S-curve (P1.036) and the acceleration / deceleration time in P5.020 - P5.035

can increase the smoothness of operation.

When the Position command source is pulse, the speed and angular acceleration are

continuous, so the S-curve filter is not necessary.

Position

Speed

Rated speed

Time (ms)

Torque

AC0 - 15

P1.036

P1.036

2

2

Time (ms)

AC0 - 15

P1.036

P1.036

2

2

Time (ms)

S-curve position and speed profiles and time setting (incremental position command)

6-8

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