Cam Reference Position Restoration - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

• Cam operation
Feed current value[pulse]
200(peak)
123
0
Cam axis current
value per cycle[pulse]
1000
0

Cam reference position restoration

If "[Pr.462] Cam axis position restoration object (R: D42742+160n/Q: D15102+150n)" is set to "1: cam reference position
restoration" when starting synchronous control, the cam reference position is restored based on the cam axis current value
per cycle and the cam axis current feed value.
Select the method for the cam axis current value per cycle to be restored. The current feed value when starting synchronous
control is used as the cam axis current feed value.
[Pr.464] Setting method of cam axis
current value per cycle
(R: D42744+160n/Q: D15104+150n)
0: Previous value
1: Initial setting value of cam
axis current value per cycle
2: Current value per cycle
after main shaft gear
3: Current value per cycle
after auxiliary shaft gear
[Md.20] Feed current value
(R: D32000+48n, D32001+48n/
Q: D0+20n, D1+20n)
(At synchronous control start)
Cam axis current value per cycle
Cam axis current feed value
Cam reference position
Restored by the equation of "Current feed value - Cam axis current value per cycle"
Cam operation restarts from "Feed current value=123[pulse]"
when the previous forced stop occurred.
Time[ms]
Time[ms]
[Md.407] Cam axis current
value per cycle
(R: D39132+32n, D39133+32n/
Q: D13612+30n, D13613+30n)
[Md.409] Cam axis current
feed value
(R: D39136+32n, D39137+32n/
Q: D13616+30n, D13617+30n)
The cam reference position is restored
based on the cam axis current value per
cycle and the cam axis current feed value.
[Md.408] Cam reference position
(R: D39134+32n, D39135+32n/
Q: D13614+30n, D13615+30n)
7 SYNCHRONOUS CONTROL INITIAL POSITION
7.3 Cam Axis Position Restoration Method
7
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