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

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