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Yaskawa MP920 Motion Module User Manual

Page 79

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2.4 Position Control Using Motion Commands

2-53

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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

Set Servo ON (bit 0 of OW††01) to ON. For the PO-01 Module, set Excitation ON
(RUN) to ON.

Set the external positioning (EX_POSING) to motion command code (OW††20).

b) Feed Hold

Set Hold (bit 0 of OW††21) to ON.

At feed hold completion, HOLDL (bit 1 of IW††15) turns ON.

c) Feed Hold Release

Set Hold (bit 1 of OW††21) to OFF. Positioning resumes.

d) Abort

Set Abort (bit 1 of OW††21) to ON, or set NOP (= 0) in the motion command code.

Busy (bit 0 of IW††15) turns ON during abort processing, and turns OFF at abort
completion.

At abort completion, operations remain stopped even if the abort is released (ABORT turns OFF) and
regardless of whether the Position Reference Type (bit 14 of OW††01) is the absolute position mode
(= 0) or the incremental addition mode (= 1).

YES

YES

YES

NO

NO

NO

YES

NO

EX_POSING

Start condition check

Return (NG)

Return (NG)

Control mode

= position control mode?

Motion command status

BUSY = OFF?

Return (OK)

Motion command code

= NOP||EX_POSING||

ENDOF_INTERPOLATE?

Motion command response

= NOP||EX_POSING||

INTERPOLATE||

ENDOF_INTERPOLATE?

INFO