CNC Z32 - Programming Guide (LATHES)
Sets the positive limits on the continuous axes X.., Y.. and activates the positive limits.
G123 KA-1 [X...] [Y...]
Sets the negative limits on axes X.., Y.. and activates the negative limits.
•
The limits are programmed by the name of continuous axis where the limits have to be applied.
•
The programmed limits are always referred to the active origin.
•
The limits are applied only on continuous axes explicitly programmed with G123KA1 or G123KA-1,
the other remaining unchanged.
•
At reset all limits are disabled.
•
Only the positive or negative limit can be active, or they may be both active.
•
On each axis : (positive limit) > (negative limit)
•
If the axes are already outside the limits when G123 KA1 or G123 KA-1 is programmed, the alarm
CN5514 will be issued
Function modes
G123 KA3
Activates
alarm mode
: if one of the programmed positions is outside the working field, the alarm
CN5614 is issued.
G123 KA4
Restores
normal mode
, the positions are limited by working field. This is the default mode, the
mode normally active if not otherwise programmed. If a movement outside the limits is
programmed, the movement stops when it reaches the limit set, without generating any alarm.
G123 KA5
Enables
stop mode
: if one or more programmed positions are outside working field, all movements
are stopped and resumed only when all programmed positions lie inside working field. When the
programmed positions re-enter inside the working field, all axes previously blocked are considered
as programmed.
Warning: if during the stop phase more than five axes were moving, when the
movement is restored, more than five axes are considered as programmed, bringing
to the alarm CN2C14 (incompatible parameters).
Rules and restrictions for G123
•
G123 must be programmed in a stand-alone line, otherwise the alarm
CN2C14 (incompatible
parameters)
will be issued.
•
If a circle (G2 or G3) is programmed when G123 is active, the alarm
CN5714 (G123)
is issued.
•
If G53 is programmed when G123 is active, or vice versa G123 programmed when G53 is active, the alarm
CN5A14 (G123+G53)
is issued.
•
If G105 is programmed when G123 is active, the alarm
CN5914 (G123+G105)
is issued.
Deactivation
By programming
G123KA0
both positive and negative limits are disabled, but all limit settings (limit positions, KA3,
KA4) remain valid.
To restore the preceding positive limit, it is sufficient to program G123KA1 without any position, and to restore the
negative limit G123KA-1 without any position.
33
