Mitsubishi Electric RD77MS2 User Manual page 111

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.
Cam axis current value per cycle
Cam axis feed current value
Cam reference position
Select from 3 objects as follows in "[Pr.462] Cam axis position restoration object" which position is to be restored.
(Refer toPage 113 Cam Axis Position Restoration Method for details on the restoration method.)
• Cam axis current value per cycle restoration
• Cam reference position restoration
• Cam axis feed current value restoration
Various parameters need to be set for the cam axis position restoration as shown below. (Refer toPage 110 Synchronous
Control Initial Position Parameters for the setting details.)
: Required, :Required for initial setting value, : Not required
[Pr.462]
Cam axis position
restoration object
0: Cam axis current value per
cycle restoration
1: Cam reference position
restoration
2: Cam axis feed current value
restoration
[Pr.463] [Pr.467]
Setting Cam
method of reference
cam position
reference (Initial
position setting)
 
 
 
[Pr.464] [Pr.468]
Setting Cam axis
method of current
cam axis value per
current cycle (Initial
value per setting)
cycle
 
(Used as
search starting
point)
 
 
5 SYNCHRONOUS CONTROL INITIAL POSITION
5.1 Synchronous Control Initial Position
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".
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