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MELSEC-
A
12 CONTROL AUXILIARY FUNCTIONS
(2) Precautions during control
(a) The range check of the command in-position is not performed during speed
control and that of speed/position changeover control.
Command in-position signal
Speed to position changeover
t
Positioning
control start
Speed/position
changeover
control start
Command in-position
width setting value
V
Execution of the command in-position width check
OFF
ON
Command in-position
width setting value
Execution of the command in-position
width check
[RY(n+1)E, RX(n+4)E]
Fig. 12.41 Command in-position width check
(b) The command in-position signal will be turned OFF in the following cases.
At the positioning control start
At the speed control start
At the zero point return control start
At the JOG operation start
When the manual pulse generator operation is enabled.
(c) The "
Pr.17 Command in-position width" and command in-position signal
(RX(n+1)E, RX(n+4)E) of the reference axis are used during interpolation
control.