FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

OPERATION
3.MANUAL OPERATION
B–62754EN/01
470
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).
Four step 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 simultaneously 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
switches.
2 To decrease the feedrate, press a rapid traverse override switch.
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.
When the tool has returned to the reference position, the reference
position return completion LED goes on.
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 y Z C
PRO-
GRAM
STOP
M02/
M30
MANU
ABS
MIR
X
NC? MC?
ZERO POSITION
1
2345678
TOOL NUIMBER
3.1
MANUAL
REFERENCE
POSITION RETURN
REMOTE
MDI
MEMORY
EDIT
ZERO
RETURN
TEACH
JOG
HANDLE
MODE
RAPID TRAVERSE
OVERRIDE (%)
50
100
25
F0
+C +X +Y
+Z–Z
–C–y –X
rapid
AXIS DIRECTION

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