
B. ALARMS
B–63284EN/03
APPENDIX
766
Alarm Description
3015
Cause The finishing allowance or radius of the tool tip specified for bar
machining, pattern repeating, or grooving is too great. Normal
rough machining cannot be executed.
Action Reduce the finishing allowance. Alternatively, use a tool with a
smaller radius at the tool tip.
Reference Sections 1.1, 1.2, and 1.6 in Part III BAR MACHINING, PATTERN
REPEATING AND GROOVING
3016
Cause Normal finish machining cannot be performed for bar machining,
tracing, or grooving because the finishing allowance or tool nose
radius is too large.
Action Specify a smaller finishing allowance or use a tool with a smaller
tool nose radius.
Reference Section 1.1, “Bar Machining,” in Part III
Section 1.2, “Tracing,” in Part III
Section 1.6, “Grooving,” in Part III
3017
Cause – Bar machining/pattern repeating: Rough machining process
A figure to be internally created cannot be created when bit 5
(SFG) of parameter No. 9767 = 1, and the length of the last
contour figure is less than the tool nose radius.
– Bar machining/pattern repeating: Finish machining
The last contour figure is a perpendicular,
and its length is less than the tool nose radius.
Action Make the last contour figure large.
3020
Cause Cutting in bar machining is impossible because of the relationship
between the tool angle, cutting edge angle, and clearance angle
(parameter 9801) for the tool used.
This alarm is raised when the sum of the above three angles is less
than or equal to 90° or is greater than or equal to 180°.
Action Check the tool angle and cutting edge angle or parameter 9801.
If the angles are incorrect, set correct values for the angles. If the
parameter is incorrect, set a correct value in the parameter.
If the sum of the three angles is less than or equal to 90° or is great-
er than or equal to 180° even after the change, change the tool.
Reference Section 13.1 in Part II SETTING DATA
3021
Cause The part to be left in automatic residual machining cannot be de-
termined.
This alarm is raised when the intersection of the end point of the
part to be left and the figure cannot be calculated (the part to be
left is determined by the tool angle, cutting edge angle, and clear-
ance angle (parameter 9801)) for the tool used.
Action On the figure data screen for the process corresponding to this
alarm, check the machining figure. If the figure is incorrect, enter
correct figure data. If the figure is correct, the tool cannot be used
for that figure. So, change the tool for the process data or change
the clearance angle (parameter 9801).
Reference Section 1.1 in Part III BAR MACHINING
Section 13.1 in Part II SETTING DATA