Mitsubishi Electric Q173DSCPU Programming Manual page 212

8 AUXILIARY AND APPLIED FUNCTIONS
Operation of main input axis
(Before synchronous control
start)
Home position return
Current value change
(Note-1)
Speed control ( )
Fixed-pitch feed control
Speed/position switching
(Note-2)
control
Connection to servo amplifier
Connection to synchronous
encoder
Others
REMARK
"The last synchronous control session" indicates status just before the last
synchronous control session was stopped as follows. These are listed with the last
synchronization status.
• Just before [Rq.380] Synchronous control start (M12000+n) turns from ON to OFF.
• Just before deceleration stop by a stop command or an error, etc.
• Just before the Multiple CPU system power supply turned OFF.
(2) Current value per cycle after main shaft gear, current value per
cycle after auxiliary shaft gear when starting synchronous control
The current value per cycle after main shaft gear/current value per cycle after
auxiliary shaft gear is restored as follows according to the main input
axis/auxiliary shaft operation executed before starting synchronous control.
Servo input axis
Absolute position Absolute position
detection system detection system
valid invalid
Restoration method 1)
Restoration method 1)
Restoration method 1)
Restoration method 1)
Restoration method 1)
Restoration Restoration
method 2) method 1)
—
Restoration method 2)
(Note-1): When it starts by turning OFF the feed current value update command (M3212+20n) or [Rq.347]
Feed current value update request command (M10972+20n).
(Note-2): When it starts by turning OFF the feed current value update command (M3212+20n).
(a) Restoration method 1)
The new value of the current value per cycle after main shaft gear/current
value per cycle after auxiliary shaft gear is calculated based on the current
value after composite main shaft gear/auxiliary shaft current value.
[Main shaft]
Current value per cycle
after main shaft gear
[Auxiliary shaft]
Current value per cycle
after auxiliary shaft gear
Command
Incremental
generation axis
synchronous
encoder
—
Restoration
method 1)
Restoration
method 1)
Restoration
method 1)
—
—
Restoration
—
method 1)
Restoration
method 2)
= Main shaft gear ratio
Auxiliary shaft gear
=
ratio
8 - 13
Synchronous encoder axis
Absolute Synchronous
synchronous encoder via
encoder device
—
Restoration method 1)
—
—
—
—
Restoration method 2)
Restoration method 2)
Current value after
composite main shaft gear
Auxiliary shaft current value