Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 160

Example
The following shows an example of starting operation from a position of "cam axis current value per cycle=0" by restoring the
cam reference position when starting from "feed current value=0[pulse]", in the cam when the cam data starting point is not 0.
Setting item
[Pr.439] Cam axis length per cycle
(R: D42700+160n, D42701+160n/Q: D15060+150n, D15061+150n)
[Pr.441] Cam stroke amount (R: D42704+160n, D42705+160n/Q: D15064+150n, D15065+150n)
[Pr.462] Cam axis restoration object (R: D42742+160n/Q: D15102+150n)
[Pr.463] Setting method of cam reference position (R: D42743+160n/Q: D15103+150n)
[Pr.464] Setting method of cam axis current value per cycle (R: D42744+160n/Q: D15104+150n)
[Pr.467] Cam reference position (Initial setting)
(R: D42750+160n, D42751+160n/Q: D15110+150n, D15111+150n)
[Pr.468] Cam axis current value per cycle (Initial setting)
(R: D42752+160n, D42753+160n/Q: D15112+150n, D15113+150n)
• Operation before starting advanced synchronous control
Feed current value [pulse]
"Feed current value=0" due to
home position return etc.
0
• Restore operation at start of advanced synchronous control
Feed current value[pulse]
Cam starting point is set to
"feed current value=0[pulse]".
Reference position becomes
"0-200=-200[pulse]".
Cam axis current
value per cycle[pulse]
Length per cycle=0[pulse]
• Cam operation
Feed current value[pulse]
0
-200
Cam axis current
value per cycle[pulse]
1000
0
7 SYNCHRONOUS CONTROL INITIAL POSITION
158
7.3 Cam Axis Position Restoration Method
Stroke ratio [%]
(200[pulse])
Time[ms]
The estimated cam pattern for
"Current value per cycle=0" as the origin is determined.
0
1000
0
Cam operation starts from 0 point which
is now "Reference point=-200[pulse]".
Cam pattern for "cam data
starting point setting=200[pulse]"
100
0 1000
Time[ms]
Time[ms]
Time[ms]
Time[ms]
Setting value
1000[pulse]
200[pulse]
1: Cam reference position restoration
None
1: Initial setting value of cam axis current value per cycle
None
0[pulse]
Length per cycle[pulse]