
B. ALARM LIST
B–63683EN/01
APPENDIX
208
B
ALARM LIST
1) Program errors (P/S alarm)
Number Message Contents
4500 REPOSITIONING INHIBITED A repositioning command was specified in the circular interpolation
(G02, G03) mode.
4502 ILLEGAL COMMAND IN BOLT
HOLE
In a bolt hole circle (G26) command, the radius (I) was set to zero or a
negative value, or the number of holes (K) was set to zero. Alternatively,
I, J, or K was not specified.
4503 ILLEGAL COMMAND IN LINE AT
ANGLE
In a line–at–angle (G76) command, the number of holes (K) was set to
zero or a negative value. Alternatively, I, J, or K was not specified.
4504 ILLEGAL COMMAND IN ARC In an arc (G77) command, the radius (I) or the number of holes (K) was
set to zero or a negative value. Alternatively, I, J, K, or P was not speci-
fied.
4505 ILLEGAL COMMAND IN GRID In a grid (G78, G79) command, the number of holes (P, K) was set to zero
or a negative value. Alternatively, I, J, K, or P was not specified.
4506 ILLEGAL COMMAND IN SHARE
PROOFS
In a shear proof (G86) command, the tool size (P) was set to zero, or the
blanking length (I) was 1.5 times larger than the tool size (P) or less. Al-
ternatively, I, J, or P was not specified.
4507 ILLEGAL COMMAND IN SQUARE In a square (G87) command, the tool size (P,Q) was set to zero or a neg-
ative value, or the blanking length (I, J) was three times larger than the
tool size (P, Q) or less. Alternatively, I, J, P, or Q was not specified.
4508 ILLEGAL COMMAND IN RADIUS In a radius (G88) command, the traveling pitch (Q) or radius (I) was set
to zero or a negative value, or the traveling pitch (Q) was greater than
or equal to the arc length. Alternatively, I, J, K, P, or Q was not specified.
4509 ILLEGAL COMMAND IN CUT AT
ANGLE
In a cut–at–angle (G89) command, the traveling pitch (Q) was set to
zero, negative value, or another value larger than or equal to the length
(I). Alternatively, I, J, P, or Q was not specified.
4510 ILLEGAL COMMAND IN
LINE–PUNCH
In a linear punching (G45) command, the traveling distance was set to
zero or a value 1.5 times larger than the tool size (P) or less. Alternative-
ly, P was not specified.
4511 ILLEGAL COMMAND IN
CIRCLE–PUNCH
In a circular punching (G46, G47) command, the same position was spe-
cified for both start and end points of the arc, radius (R) of the arc was
set to zero, or the pitch (Q) was set to a value exceeding the arc length.
Alternatively, R or Q was not specified.
4520 T, M INHIBITED IN
NIBBLING–MODE
T code, M code, G04, G70 or G75 was specified in the nibbling mode.
4521 EXCESS NIBBLING MOVEMENT
(X, Y)
In the nibbling mode, the X–axis or Y–axis traveling distance was larger
than or equal to the limit (No. 16188 to 16193).
4522 EXCESS NIBBLING MOVEMENT
(C)
In the circular nibbling (G68) or usual nibbling mode, the C–axis travel-
ing distance was larger than or equal to the limit (No. 16194).