Mitsubishi Electric RD77MS2 User Manual page 128

(3) The range from the last point of cam data to the cam axis length per cycle
When "the last point of cam data  [Cd.617] Cam position calculation: Cam axis current value per cycle < cam axis length per
cycle", the position corresponding to "[Cd.618] Cam position calculation: Cam axis feed current value" is searched from the
last point of the cam data or later.
If the corresponding position is not found even though the range of (3) has been searched, the warning "Cam position
calculation cam axis 1 cycle current value calculation disable" (warning code: 0C64H) will occur in reciprocated cam pattern.
For the feed cam, calculates "[Cd.618] Cam position calculation: Cam axis feed current value" by the stroke difference and
searches again from the 0th point to the whole range. If the corresponding position is not found even though the search
process starts again, the warning "Cam position calculation cam axis 1 cycle current value calculation disable" (warning code:
0C64H) will occur.
Ex.
When "[Cd.617] Cam position calculation: Cam axis current value per cycle" is corresponding to the last point of cam data
At the 0th point
(Cam reference position)
• Searches from the range of (3).
5 SYNCHRONOUS CONTROL INITIAL POSITION
126
5.5 Cam Position Calculation Function
At the 1st point
0
(1)
Cam axis length per cycle [Cam axis cycle units]
At the 2nd point
At the 3rd point
Search starting point
At the 4th point
(2)
[Cd.617] Cam position calculation: Cam axis
current value per cycle
1
Search order
At the 5th point
(3)