Mitsubishi Electric Q173DSCPU Programming Manual page 211

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
Current value after
composite main
shaft gear
(1) Current value after composite main shaft gear when starting
synchronous control
The current value after composite main shaft gear is restored as follows
according to the main input axis 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 current value after composite main shaft gear is calculated based
on the current value of the main input axis.
Current value after
composite main
shaft gear
(b) Restoration method 2)
The travel value of the main input axis from the last synchronous control
session is reflected to the current value after composite main shaft gear.
Current value after
composite main shaft gear
=
at the last synchronous
control session
The current value after composite main shaft gear at the last synchronous
control session is restored when "0: Invalid" is set in [Pr.400] Main input axis
No. (D15000+150n), or when a servo input axis or a synchronous encoder
axis as the main input axis is not connected.
Command
Incremental
generation axis
synchronous
encoder
—
Restoration
method 1)
Restoration
method 1)
Restoration
method 1)
—
—
Restoration
—
method 1)
Restoration
method 2)
Main input direction of
= composite main shaft gear
(Input +/Input -/No input (0))
Main input direction of
+ composite main shaft gear
(Input +/Input -/No input (0))
8 - 12
Synchronous encoder axis
Absolute Synchronous
synchronous encoder via
encoder device
—
Restoration method 1)
—
—
—
—
Restoration method 2)
Restoration method 2)
Main input axis current
value
Amount of change of main
input axis current value
from the last synchronous
control session