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NOTE
1. Although manual
or
auto
reference
point
return
operation
starts
after
power
is turned
on regardless
of the position of the
moving
part
of the
machine,
correct return
is
not
possible
if the
moving
part
is in area
B.
Always
conduct reference
point return
after the
moving
part
is in area
A.
2. Error will occur if reference point
return
is conducted
while in
area B
since point
C will be stored in
the equipment once
reference
point
return
is conducted. Therefore,
return to
area
A and conduct reference
point
return again.
3. The direction of reference
point
return
of the axis
on
which reference
point
return
is
completed
cannot
be
changed by
manual operation
as
long as
the
REFERENCE POINT RETURN switch is
OFF.
4.
An alarm occurs
if the
mode
is changed during reference point
return
self-running.
Alarm 2141 to 2145
Reference
point
return
interruption error.
5. Reference point
return
is
not
executed if
the machine lock switch is ON.
6.
Do
not
conduct manual
reference
point
return
during
auto
operation
with
an
advance read block in the buffer since the
movement
data in
the advance read buffer will be erased.
7.
Rotary axis manual
return
to
reference
point.
The
rotary
axis can also be returned
to
the reference
point'by
the same
operation as
the linear axis. After
moving ±360.000°, the
rotary
axis
returns to
the reference
position by turning a
minimum
amount
in the
home
positioning
direction.
I
For
example,
from
positions
A and
B,
the axis
returns to
positions A'
and
B\
respectively.
(The
direction of
approaching the
home
position
is
determined
by
Pm4002
(D3,
D4).
B
B1
A
A'
*
+
-360"
-730 *
360"
720*
0
Fig. 3.6.2
Return
of
Rotation Axis
to
Reference Point
(Approach
to home
position
from
negative to positive)
-
595
-
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