Mitsubishi Electric MELSEC iQ-R RD78G4 - 5.6 Method to Restart Synchronous Control

164
5 ADVANCED SYNCHRONOUS CONTROL INITIAL POSITION
5.5 Cam Position Calculation Function
Ex.
When "[Cd.617] Cam position calculation: Cam axis position value per cycle" is corresponding to the 1st point of cam data
• Searches until between the 4th point and the 5th point (last point) in order of the cam data between the 1st point and the
2nd point and between the 2nd point and the 3rd point.
• If the corresponding position is not found until the last point of the cam data, searches from the range of (3).
Ex.
When "[Cd.617] Cam position calculation: Cam axis position value per cycle" is corresponding to the 3rd point of cam data
• Searches in order of the cam data between the 3rd point and the 4th point and between the 4th point and the 5th point (last
point).
• If the corresponding position is not found until the last point of the cam data, searches from the 1st point of the cam data.
• If the corresponding position is not found in the cam data between the 1st point and the 2nd point and between the 2nd
point and the 3rd point, searches from the range of (3).
0
1
2
(Cam reference
position)
Cam axis length per cycle [Cam axis cycle units]
At the
1st point
At the 2nd point
At the 4th point
At the 5th point
Range of (1)
Range of (2)
Range of (3)
[Cd.617] Cam position
calculation: Cam axis
position value per cycle
At the 0th point
Search order
At the 3rd point
Search starting point
0
1
2
3
(Cam reference
position)
Cam axis length per cycle [Cam axis cycle units]
At the 1st
point
At the 2nd point
At the 4th point
At the 5th point
Range of (1)
Range of (2)
Range of (3)
[Cd.617] Cam position calculation:
Cam axis position value
per cycle
Search starting point
At the 0th point
Search order
At the 3rd point