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Chapter 5 Synchronous Control Initial Position
5.3.2 Cam reference position restoration
If "[Pr.462] Cam axis position restoration object" 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 feed current value.
Select the method for the cam axis current value per cycle to be restored. The feed current
value when starting synchronous control is used as the cam axis feed current value.
The cam reference position is restored
based on the cam axis current value per
cycle and the cam axis feed current value.
Pr.464 Setting method of cam axis
current value per cycle
Feed current value
Md.20
(At synchronous control start)
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.407 Cam axis current
value per cycle
Md.409 Cam axis feed
current value
Md.408 Cam reference position
Cam axis feed current value
Cam axis current value per cycle
Cam reference position
Restored by the equation of
"Feed current value - Cam axis current value per cycle"
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
Setting value
[Pr.439] Cam axis length per cycle
1000 [PLS]
[Pr.441] Cam stroke amount
200 [PLS]
[Pr.462] Cam axis position restoration object
1: Cam reference position restoration
[Pr.463] Setting method of cam reference position
None
[Pr.464] Setting method of cam axis current value per cycle
1: Initial setting value of cam axis current value
per cycle
[Pr.467] Cam reference position (Initial setting)
None
[Pr.468] Cam axis current value per cycle (Initial setting)
0 [PLS]
Summary of Contents for LD77MH
Page 2: ......
Page 48: ...1 16 Chapter1 Outline of Synchronous Control MEMO ...
Page 84: ...2 36 Chapter 2 Input Axis Module MEMO ...
Page 104: ...3 20 Chapter 3 Cam Function MEMO ...
Page 168: ...4 64 Chapter 4 Synchronous Control MEMO ...
Page 234: ...Appendix 18 Appendices MEMO ...
Page 237: ......