
A-60156E
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FANUC Series 16
i
/18
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/21
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– TA/TB
Direct input of offset value measured B
for 2 spindle lathe
Jan.31.02
7/13
•
••
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Basic Procedure to Set Z-axis
workpiece origin offset Value
The Z-axis workpiece origin offset value is automatically set by the following
operation. This has to be performed after measurement of the tool geometry
offset value.
(1)
Select the spindle measuring the tool offset by the measured spindle
select signal (G040.5)
(2)
Execute manual reference position return.
By executing manual reference position return, a machine coordinate
system is established.
The Z-axis work piece coordinate offset value is
computed on the machine coordinate system.
(3)
Set the workpiece origin offset value write mode select signal WOQSM
(G039.6) to “1”.
The CRT display is automatically changed to the work coordinate
system setting screen, and the “OFST” indicator starts blinking in the
status indication area in the bottom of the screen, which informs that
the workpiece origin offset value write mode is ready.
Then the measured spindle check signal S1MES (F062.3) or S2MES
(F062.3) is set to “1”.
(4)
Select a tool to be measured.
(5)
Check tool offset numbers.
The tool offset number corresponding to the tool required for
measurement, shall be set in the parameter (No.5020) in advance. The
tool offset number can also be set automatically by setting the tool offset
number input signal (with parameter No.5005#5(QNI)=1).
(6)
Near the tool to an end face of the workpiece.
(7)
Place the tool edge to the end face (sensor) of the workpiece using
manual operation. When the tool edge contacts the end face of the
workpiece, input the workpiece origin offset write signal WOSET
(G040#7). The Z–axis the workpiece origin offset is automatically set.
(8)
Release the tool.
(9)
Set the workpiece origin offset value write mode signal WOQSM (G39.6)
to “0”.
i) The writing mode is canceled and the blinking “WSFT” indicator
light.
ii) The measured spindle check signal S1MES (F062.3) or S2MES
(F062.4) is set to “0”.
Note
After that, the measured spindle select signal S2TLS (G040.5) cannot be
changed until the workpiece origin offset value write mode select signal
WOQSM (G039.6) is changed to “0”.