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Chapter 5 Synchronous Control Initial Position; Synchronous Control Initial Position - Mitsubishi Electric RD77MS2 User Manual

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5

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] Current value after composite main shaft gear
[Md.401] Current value per cycle after main shaft gear
[Md.402] Current value per cycle after auxiliary shaft gear
[Md.407] Cam axis current value per cycle
[Md.408] Cam reference position
[Md.409] Cam axis feed current value
[Md.400] Current value after composite main shaft gear
Composite
main
Main shaft
shaft gear
main input axis
Main shaft
sub input axis
Auxiliary shaft
Auxiliary shaft
gear
clutch
Auxiliary
shaft axis
[Md.402] Current value per cycle
after auxiliary shaft gear
[Pr.461] Setting method of current value
0: Previous value
1: Initial setting value of
current value per cycle
after auxiliary shaft gear
2: Calculate from input axis
5 SYNCHRONOUS CONTROL INITIAL POSITION
5.1 Synchronous Control Initial Position
Main shaft
gear
[Md.401] Current value
per cycle after
main shaft gear
Main shaft clutch
Composite
auxiliary shaft
gear
[Md.407] Cam axis current
value per cycle
Output axis
[Md.408] Cam reference
position
[Md.409] Cam axis feed
current value
per cycle after auxiliary shaft gear
The 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 current value per cycle after
main shaft gear".
Restored according to "[Pr.461] Setting method of current value per cycle after
auxiliary shaft gear".
Restored according to "[Pr.462] Cam axis position restoration object".
[Pr.460] Setting method of current value
per cycle after main shaft gear
0: Previous value
1: Initial setting value of
current value per cycle
after main shaft gear
2: Calculate from input axis
[Pr.462] Cam axis position restoration object
0: Cam axis current value
per cycle restoration
1: Cam reference position
restoration
2: Cam axis feed current value
restoration

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