
8
8.1 Alarms Displayed on NC Screen
478
No. ContentsMessage
200 ILLEGAL S CODE
COMMAND
In the rigid tap, an S value is out of the
range or is not specified. Modify the pro-
gram.
201 FEEDRATE NOT FOUND IN
RIGID TAP
In the rigid tap, no F value is specified. Cor-
rect the program.
202 POSITION LSI OVERFLOW In the rigid tap, spindle distribution value is
too large.
203 PROGRAM MISS AT RIGID
TAPPING
In the rigid tap, position for a rigid M code
(M29) or an S command is incorrect.
Modify the program.
204 ILLEGAL AXIS OPERATION In the rigid tap, an axis movement is speci-
fied between the rigid M code (M29) block
and G84 or G74 for M series (G84 or G88
for T series) block. Modify the program.
205 RIGID MODE DI SIGNAL
OFF
1. Although a rigid M code (M29) is speci-
fied in rigid tapping, the rigid mode DI
signal <G61#0> is not ON during
execution of the G84 (G88) block.
2. In a system with the multi–spindle op-
tion, the spindle used for rigid tapping
is not selected (by DI signal <G27#0,
#1>, or <G61#4, #5>).
Check the PMC ladder diagram to find the
reason why the DI signal is not turned on.
206 CAN NOT CHANGE PLANE
(M series)
Plane changeover was instructed in the rig-
id mode. Correct the program.
207 RIGID DATA MISMATCH The specified distance was too short or too
long in rigid tapping.
210 CAN NOT COMAND
M198/M199
1. The execution of an M198 or M99 com-
mand was attempted during scheduled
operation. Alternatively, the execution
of an M198 command was attempted
during DNC operation. Correct the pro-
gram.
2. The execution of an M99 command
was attempted by an interrupt macro
during pocket machining in a multiple
repetitive canned cycle. (T series)
211 G31 (HIGH) NOT ALLOWED
IN G99
(T series)
G31 is commanded in the per revolution
command when the high–speed skip op-
tion is provided. Modify the program.
ILLEGAL PLANE SELECT
(M series)
The arbitrary angle chamfering or a corner
R is commanded or the plane including an
additional axis. Correct the program.
212
ILLEGAL PLANE SELECT
(T series)
The direct drawing dimensions program-
ming is commanded for the plane other
than the Z–X plane. Correct the program.