FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

OPERATION
B–62764EN/01
3. MANUAL OPERATION
555
The tool is returned to the reference position as follows :
The tool is moved in the direction specified in parameter ZMI (bit 5 of No.
1006) for each axis with the reference position return switch on the
machine operators panel. The tool moves to the deceleration point at the
rapid traverse rate, then moves to the reference position at the FL speed.
The rapid traverse rate and FL speed are specified in parameters (No.
1420,1421, and 1425).
Fourstep rapid traverse override is effective during rapid traverse.
When the tool has returned to the reference position, the reference
position return completion LED goes on. The tool generally moves along
only a single axis, but can move along three axes simultane ously when
specified so in parameter JAX(bit 0 of No.1002).
Rapid traverse rate
(rapid traverse override is
effective)
Rapid traverse motion
Decelerated
motion
FL speed
Reference
position
Deceleration
point
Procedure for Manual Reference Position Return
1 Press the reference position return switch, one of the mode selection
swithces.
2 To decerease the feedrate, press a rapid traverse override switch.
When the tool has returned to the reference position, the reference
position return completion LED goes on.
3 Press the feed axis and direction selection switch corresponding to the
axis and direction for reference position return. Continue pressing the
switch until the tool returns to the reference position. The tool can be
moved along three axes simultaneously when specified so in an
appropriate parameter setting. The tool moves to the deceleration
point at the rapid traverse rate, then moves to the reference position at
the FL speed set in a parameter.
4 Perform the same operations for other axes, if necessary.
The above is an example. Refer to the appropriate manual provided by
the machine tool builder for the actual operations.
X
MIRRROR IMAGE
Y Z C X2 Y2 Z2 X Y Z
PRO-
GRAM
STOP
M02/
M30
MANU
ABS
SPINDLE
ORI TAP
ATC
READY
MC?
ZERO POSITION
3.1
MANUAL
REFERENCE
POSITION RETURN
REMOTE MDIMEMORY
EDIT
HANDLE
ZERO
RETURN
TEACHJOG
MODE
Procedure
100
25
50
F0
RAPID TRA-
VERSE
OVERRIDE
(%)
+C +Z +Y
+X–X
–C–Y –Z
RAPID
AXIS DIRECTION

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