Chapter 5 Advanced Synchronous Control Initial Position; Synchronous Control Initial Position - Mitsubishi Electric MELSEC iQ-R RD78G4 User Manual

5
ADVANCED SYNCHRONOUS CONTROL
INITIAL POSITION
The initial position for synchronous control is explained in this chapter.
Configure these settings for situations that require initial position alignment for synchronous control.
5.1

Synchronous Control Initial Position

The following synchronous control monitor data can be aligned to a set position when starting synchronous control, as the
initial position for synchronous control.
The alignment to a synchronous control initial position is useful for restoring a system based on the last control status along
with restarting synchronous control after canceling midway.
Synchronous control monitor data
[Md.400] Position value after composite main shaft gear
[Md.401] Position value per cycle after main shaft gear
[Md.402] Position value per cycle after auxiliary shaft gear
[Md.407] Cam axis position value per cycle
[Md.408] Cam reference position
[Md.409] Cam axis command position value
[Md.400] Position value after composite main shaft gear
Composite
main
Input axis
shaft gear
(main shaft main)
Input axis
(main shaft sub)
Auxiliary shaft Auxiliary shaft
gear clutch
Input axis
(auxiliary shaft)
[Md.402] Position value per cycle
after auxiliary shaft gear
[Pr.461] Setting method of position value per cycle
0: Previous value
1: Initial setting value of
position value per cycle
after auxiliary shaft gear
2: Calculate from input axis
Main shaft
gear
[Md.401] Position value
per cycle after
main shaft gear
Main
shaft clutch
Composite auxiliary
shaft gear
[Md.407] Cam axis position
value per cycle
Output axis [Md.408] Cam reference
position
[Md.409] Cam axis
command position
value
after auxiliary shaft gear
Position when starting synchronous control
Restored to a position based on the main input axis of the main shaft.
Restored according to "[Pr.460] Setting method of position value per cycle
after main shaft gear".
Restored according to "[Pr.461] Setting method of position value per cycle
after auxiliary shaft gear".
Restored according to "[Pr.462] Cam axis position restoration object".
[Pr.460] Setting method of position value
per cycle after main shaft gear
0: Previous value
1: Initial setting value of
position value per cycle
after main shaft gear
2: Calculate from input axis
[Pr.462] Cam axis position restoration object
0: Cam axis position value
per cycle restoration
1: Cam reference position
restoration
2: Cam axis command position
value restoration
5 ADVANCED SYNCHRONOUS CONTROL INITIAL POSITION
5.1 Synchronous Control Initial Position
5
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