Mitsubishi Electric MELSEC iQ-R RD78G4 User Manual page 131

[Cd.407] Synchronous control change command
Set the synchronous control change command.
Setting Details
value
0 Cam reference position movement
1 Change cam axis position value per cycle
2 Change position value per cycle after
main shaft gear
3 Change position value per cycle after
auxiliary shaft gear
4 Cam axis position value per cycle
movement
■Cam reference position movement
This command is executed to move the cam reference position through adding the setting movement amount of "[Cd.408]
Synchronous control change value". The movement amount to be added is averaged in "[Cd.409] Synchronous control
reflection time" for its output. Set a long reflection time when a large movement amount is used since the cam axis command
position value moves with the movement amount.
[Md.407] Cam axis position
value per cycle
[Md.409] Cam axis command
position value
(Command position
value)
[Md.408] Cam reference position
[Cd.406] Synchronous control
change request
[Cd.407] Synchronous control
change command
When "[Cd.406] Synchronous control change request" is reset to "0" while executing the cam reference position movement
instruction, operation is stopped midway. If the cam reference position movement instruction is executed again, the remainder
movement amount is not reflected, and the operation starts with "[Cd.408] Synchronous control change value" to be used
again.
If synchronous control is stopped while the cam reference position movement instruction is being executed, operation also
stops midway. If synchronous control is restarted, the remainder movement amount is not reflected.
■Change cam axis position value per cycle
The cam axis position value per cycle is changed to "[Cd.408] Synchronous control change value". The cam reference
position will be also changed to correspond to the changed cam axis position value per cycle.
This operation is completed within one operation cycle.
[Md.407] Cam axis position
value per cycle
[Md.409] Cam axis command
position value
(Command position
value)
[Md.408] Cam reference
position
[Cd.406] Synchronous control
change request
[Cd.407] Synchronous control
change command
Reference
Page 129 Cam reference position movement
Page 129 Change cam axis position value per cycle
Page 130 Change position value per cycle after main shaft gear
Page 130 Change position value per cycle after auxiliary shaft gear
Page 130 Cam axis position value per cycle movement
[Cd.408] Synchronous
control change value
[Cd.409] Synchronous control reflection time
0: Cam reference position movement
[Cd.408] Synchronous control change value
(Before change)
(After change)
Changed to new cam reference position
1: Change cam axis position value per cycle
t
t
t
t
4 ADVANCED SYNCHRONOUS CONTROL
4.6 Synchronous Control Change Function
4
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