
B. ALARMS
B–62444E–1/04
APPENDIX
592
Alarm Description
3026
Cause The groove width or tool used is incorrect in grooving.
This alarm is raised when the width of the tool used is smaller than
the groove width.
Action On the process data screen for the grooving process correspond-
ing to this alarm, check the groove width. If the width is incorrect,
enter a correct value. Otherwise, select a tool whose cutting edge
width is smaller than the groove width.
Reference Section 1.6 in Part III PATTERN REPEATING
Section 13.1 in Part II SETTING DATA
3027
Cause The cutting edge width of the tool used in grooving is 0.
Action Enter a correct value for the cutting edge width for the grooving
tool in the tool data file.
Reference Section 1.6 in Part III PATTERN REPEATING
Section 13.1 in Part II SETTING DATA
3028
Cause Cutting in trapezoidal grooving is impossible because of the rela-
tionship of the groove bottom width and the tool width.
This alarm is raised when the cutting edge width of the tool used
is smaller than the groove bottom width in trapezoidal grooving.
Action Check the figure, on the figure data screen for the grooving pro-
cess corresponding to this alarm. If the figure is incorrect, enter
correct data. Otherwise, select a tool whose cutting edge width is
smaller than the groove bottom width.
Reference Section 1.6 in Part III PATTERN REPEATING
Section 13.1 in Part II SETTING DATA
3029
Cause The start point for threading coincides with the end point.
Action On the figure data screen for the threading process corresponding
to this alarm, enter correct data for the figure.
Reference Section 1.5 in Part III THREADING
3030
Cause The cutting edge angle or tool angle for the tool used in necking
is incorrect.
There are some restrictions on the cutting edge angle and tool
angle in necking because of the nature of necking. These limits
are determined by the angle at the necking part set in the parame-
ter.
Normally, the system automatically determines a tool which satis-
fies the above limits. However, when a tool is manually selected,
that tool may not satisfy the limits. In this case, this alarm is raised.
Action Check the cutting edge angle and tool angle for the tool used in
necking. If the tool is not suitable for necking, charge the tool. Se-
lect the number of a tool appropriate for necking on the process
data screen for necking again.
Reference Section 1.7 in Part III NECKING
Section 13.1 in Part II SETTING DATA