
6.SAFETY FUNCTIONS OPERATION B-63324EN-1/03
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- Effective time for a forbidden area
Each limit becomes valid when reference position return has been
performed manually or by G28 after power-up.
After the power is turned on, if the reference position is in the
forbidden area of each limit, an alarm is generated immediately. (Only
in G22 mode for stored stroke limit 2).
- Releasing the alarms
If the enters a forbidden area and an alarm is generated, the tool can be
moved only in the backward direction. To cancel the alarm, move the
tool backward until it is outside the forbidden area and reset the system.
When the alarm is canceled, the tool can be moved both backward and
forward.
- Change from G23 to G22 in a forbidden area
When G23 is switched to G22 in the forbidden area, the following
results.
(1) When the forbidden area is inside, an alarm is informed in the next
move.
(2) When the forbidden area is outside, an alarm is informed
immediately.
If the tool cannot be moved out of the forbidden area, press the
emergency stop button then release it, set G23 to retract the tool,
correct the setting error, if any, then perform reference position
return again.
CAUTION
When the reference position return function is not
provided for an axis, no forbidden area is set for that
axis, so no forbidden-area alarm is generated for the
axis.
NOTE
1 In setting a forbidden area, if the two points to be set
are the same, the area is as follows:
(1) When the forbidden area is stored stroke check 1,
all areas are forbidden areas.
(2) When the forbidden area is stored stroke check 2
or stored stroke check 3, all areas are movable
areas.
2 Only the three basic axes can be specified in G22.