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Yaskawa MP940 User Manual

Page 461

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11.4 Position Control Using Motion Commands

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3. Set the motion setting parameters.

4. Set Servo ON (RUN) to ON (bit 0 of OWC001).

5. Set external positioning (EX_POSING=2) in the motion command code (OWC020).

6. Start operation using the external positioning command.

The specified motion parameters are used to position the axis.
Even during positioning, the motion parameter setting values can be changed.

The external positioning command operations are as follows:

a) Operation Start

Servo ON (bit 0 of OWC001).

Set the external positioning (EX_POSING = 2) to motion command code
(OWC020).

b) Feed Hold

Set Hold (bit 0 of OWC021) to ON.

At feed hold completion, HOLDL (bit 1 of IWC015) turns ON.

c) Feed Hold Release

Set Hold (bit 1 of OWC021) to OFF. Positioning resumes.

d) Abort

Set Abort (bit 1 of OWC021) to ON, or set NOP (= 0) in the motion command code.

Busy (bit 0 of IWC015) turns ON during abort processing, and turns OFF at abort
completion.

7. When the latch signal is input, the axis moves by the external positioning travel distance

(OLC024) and then stops.

EX POSING

NOP∥EX POSING∥

ENDOF INTERPOLATE?

YES

YES

YES

NO

NO

NO

NOP∥EX POSING∥

INTERPOLATE∥

ENDOF INTERPOLATE?

BUSY=OFF?

YES

NO

Start condition check

Control mode = position

control mode?

Return (NG)

Return (NG)

Motion command code

Motion command response

Motion command status

Return (OK)