Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 553

12. APPLICATION OF FUNCTIONS
3) Cam data start position
This setting is available only for the stroke ratio data type cam data.
The cam data position where the "cam axis one cycle current value" becomes "0" can be set as
the cam data start position.
The initial value of the cam data start position is "0". The cam axis is controlled with the cam data
from the 0th point (stroke ratio = 0%).
When a value other than "0" is set as the cam data start position, cam control is started from the
point where the stroke ratio is not 0%.
Set the cam data start position for each cam data within the setting range of "0 to (Cam resolution
- 1)".
4) Timing of applying cam control data
New values are applied to "Cam No." and "Cam stroke amount" when CAMC (Cam control
command) turns on.
"Cam standard position" is updated when "Cam axis one cycle current value" passes through the
0th point of the cam data.
Cam axis
one cycle current value
Feed current value
Cam standard
position
(First cycle)
Cam data
start position
Zeroth point
12 - 12
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Cam standard Cam standard
position position
(Second cycle) (Third cycle)
Last point
t
t