Mitsubishi Electric QD77MS User Manual page 174

Cam axis position at synchronous control start
The cam axis position is composed of the relationship of 3 positions "Cam axis current
value per cycle", "Cam reference position" and "Cam axis feed current value". One of
positions can be restored by defining 2 positions when starting synchronous control.
Select from 3 objects as follows in "[Pr.462] Cam axis position restoration object" which
position is to be restored.
(Refer to Section 5.3 for details on the restoration method.)
Various parameters need to be set for the cam axis position restoration as shown in Table
5.1. (Refer to Section 5.2 for the setting details.)
Table 5.1 Setting list for cam axis position restoration parameters
[Pr.463]
[Pr.462] Setting method
Cam axis position
restoration object reference
position
0: Cam axis current
value per cycle
restoration
1: Cam reference
position
restoration
2: Cam axis feed
current value
restoration
: Required, :Required for initial setting value , —: Not required
Cam axis current value per cycle
Cam axis feed current value
[1] Cam axis current value per cycle restoration
[2] Cam reference position restoration
[3] Cam axis feed current value restoration
[Pr.467]
Cam reference
of cam
position
(Initial setting)
— —
Chapter 5 Synchronous Control Initial Position
Cam reference position
[Pr.464] [Pr.468]
Setting method Cam axis
of cam axis current value
current value per cycle
per cycle (Initial setting)
— (Used as search
starting point)
5 - 6
Restoration processing details
Restore "Cam axis current value per
cycle" based on "Cam reference position"
and "Cam axis feed current value".
Restore "Cam reference position" based
on "Cam axis current value per cycle"
and "Cam axis feed current value".
Restore "Cam axis feed current value"
based on "Cam axis current value per
cycle" and "Cam reference position".