Restart Operation Of Cam Control - Mitsubishi MR-JE-200A Instruction Manual

6. APPLICATION OF FUNCTIONS

6.1.12 Restart operation of cam control

When the cam control is stopped during operation, a gap is generated in the synchronization between the
main shaft and the driven shaft. To solve the gap, return the main shaft and the driven shaft to the
synchronization starting point and then start the synchronous operation.
«Main shaft/driven shaft»
MD0
(Operation mode selection 1)
SON (Servo-on)
ST1
(Forward rotation start)
Point table No.
«Main shaft»
Command speed
Command position
«Driven shaft»
ST1
(Forward rotation start)
CAMC
(Cam control command)
Command speed
Command position
Cam axis one cycle
current value
Cam axis feed current value
CAMS
(Under cam control)
The above shows an example for when the synchronization starting point is the point where both command
position and feed current value are "0".
ON
OFF
ON
OFF
ON
OFF
5 ms or longer
3 ms or shorter
Forward
rotation
Point table No. 1
0 r/min
Reverse
rotation
(Note 1)
ON
OFF
3 ms or shorter
Forward
rotation
Point table No. 1
0 r/min
Reverse
rotation
(Note 1)
(Note 1)
(Note 1)
ON
5 ms or
OFF
shorter
6 - 40
1
Point table in which the command
position 0 is set as the target
position
2
Positioning to the synchronization
start position (Command
position 0)
Positioning to the synchronization
start position (Feed current value
0 (= Command position 0))
If the cam control stops during
operation, the synchronous
position relationship with the main
shaft is broken.