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MITSUBISHI CNC
III Functional Specifications
17.2.2 Axis Detachment
M720VW
M system
△
L system
△
This function enables the control axis to be freed from control. Conversely, an axis which has been freed
from control can be returned to the control status.
This function enables the rotary table or attachments to be removed and replaced. Automatic operation is
disabled until the axis for which the axis detach command has been released completes its dog-type
reference position return.
(f)
(a) C-axis/turning table
(b) Rotary magnetic scale
(c) (Position feedback)
(d) (OFF with C-axis control )
(e) (Coupled with C-axis control)
(f) Spindle motor
(g) C-axis motor
(h) Spindle drive unit
(i) C-axis drive unit
POSITION
X 123.456
Z 0.000#1
C 345.678><
(Note)
Axis detach can be executed even for the absolute position detection specifications axis, but when
the axis is reinstalled, the zero point must be set.
III - 378
M730VW
M750VW
△
△
△
△
(a)
(c)
(b)
(d)
(e)
(h)
(i)
The detached status > < is indicated on the right of the POSITION display on the
POSITION screen and at the same time the servo ready for the controller output
signal is set to OFF. The POSITION counter retains the value applying when detach
was assigned.
M720VS
M730VS
M750VS
△
△
△
△
(g)
△
△
This shows the configuration of
a machine for which switching
between the C axis and turning
table is performed. When the
spindle motor is connected, the
C axis is placed in the detached
status.
As a result, the position
feedback of the detector is
ignored.
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