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Yaskawa MP940 User Manual

Page 478

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Motion Control

11.4.7 Fixed Speed Feed (FEED)

11-76

The axis performs fixed speed feed using the specified motion parameter.

Fixed speed feed cannot be temporarily stopped.

7. To stop (abort) fixed speed feed, set NOP (= 0) in the motion command code

(OWC020).

8. When the axis enters the Positioning Completed Range (OWC00E) after Distribution

Completed (bit 2 of IWC015 is ON), the POSCOMP Positioning Completed Signal (bit
D of IWC000) turns ON.

„

User Program Example: Fixed Speed Feed

Example of RUN Operation

Fig 11.26 Example of a Fixed Speed Feed Pattern

FEED

NOP∥FEED?

YES

YES

YES

NO

NO

NO

NOP∥FEED?

Start condition check

Control mode = position

control mode?

Return (NG)

Return (NG)

Motion command code

Motion command response

Return (OK)

FEED

NO

YES

FEED?

End condition check

Motion command response

Return (FEED executing)

Return (FEED

completed)

0

NOP

100%

*The position is the speed

reference integral value.

Speed

(%)

Rated speed

Rapid

traverse

speed

command

Position*

Time (t)

Linear acceleration

time constant

Linear deceleration

time constant