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User Manual - CNC4PC

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5-4-4 Smooth Acceleration<br />

Using the One Time Smooth Acceleration/Deceleration of Position Command”<br />

It smoothes the position pulse command frequency.<br />

Parameter<br />

Signal<br />

★Pn313<br />

Name Default Unit Setting Range Control Mode<br />

Position command<br />

Accel/Decel Time<br />

Constant<br />

New setting will become effective after re-cycling the power.<br />

0 msec 0~10000 Pi/Pe<br />

Time Constant of One Time Smooth Acceleration/Deceleration of Position Command:<br />

The Time in which The Position Pulse Frequency increases (one time) from zero to 63.2% of Position Pulse<br />

Command Frequency.<br />

Frequency of Position<br />

Pulse Command (%)<br />

100<br />

Frequency of Position Pulse Command<br />

63.2<br />

50<br />

Pn313<br />

Time (ms)<br />

Setting Examples:<br />

(1) To achieve 95% of Position Pulse Command Frequency Output in 30msec:<br />

30(msec)<br />

Pn313 =<br />

= 10(msec)<br />

- ln(1- 95%)<br />

(2) To achieve 75% of Position Pulse Command Frequency Output in 30msec:<br />

30(msec)<br />

Pn313 =<br />

= 22(msec)<br />

- ln(1- 75%)<br />

Note:Above curve is a logarithmic<br />

ln = Natural log.<br />

5-41

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