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7 SYNCHRONOUS CONTROL
7.6 Synchronous Control Change Function
7.6.1 Overview of synchronous control change function
This function can be used to change the cam reference position, the cam axis current
value per cycle and the current value per cycle after the main/auxiliary shaft gear
during the synchronous control.
The following 5 methods exist for the synchronous control change function.
Refer to Section 7.6.2 for details on each change command.
Synchronous control change
command
Application
Output axis
operation
Cam reference position movement Adjust the cam reference position by travel value.
Operated
Change cam axis current value per
cycle
Change the cam axis current value per cycle.
None
Change current value per cycle
after main shaft gear
Change the current value per cycle after main
shaft gear.
None
Change current value per cycle
after auxiliary shaft gear
Change the current value per cycle after auxiliary
shaft gear.
None
Cam axis current value per cycle
movement
Adjust the phase of the cam axis by travel value.
Operated
7.6.2 Synchronous control change control data
[Bit device]
Symbol
Setting item
Setting details
Setting value
Refresh
cycle
Fetch cycle
Default
value
Device No.
Rq.406
Control change
request command
Set the control change
command request command.
OFF : Control change
not requested
ON : Control change
requested
Operation
cycle
OFF 10n
St.426
Control change
complete
The complete signal of control
change request command
processing is stored
OFF: Control change
incomplete
ON : Control change
complete
Operation
cycle
—
10n
(1) [Rq.406] Control change request command (10n)
Set ON to initiate [Cd.407] Synchronous control change command
(150n). The [St.426] Control change complete (10n) turns ON
at the after completion of the synchronous control change.
This signal turns OFF at the synchronous control start.
(2) [St.426] Control change complete (10n)
This signal turns ON with the completion for control change.
If the control change processing is stopped midway, the signal remains to be
OFF.
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