Fagor 8070 BL - CNC Behavior When There Are Active Work Zones

Programming manual.
CNC 8070
11.
GEOMETRY ASSISTANCE
Work zones.
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(REF: 1709)
11.11.1 CNC behavior when there are active work zones.
Some general points to consider.
• On power-up, the CNC will not monitor the zones whose limits are defined by axes that
have non-absolute feedback and have not been homed.
• The CNC will not monitor the work zones during home search.
• The CNC takes into account the tool dimensions in the axes of the main trihedron. If there
is an active kinematics, the CNC will take into account the direction of the tool.
• The CNC also applies the work zones to the axes that work as DRO, monitoring in this
case the limit in the direction of the real position increment for no-exit zones.
• The CNC monitors the machine coordinates of the axes of the channel; i.e. it takes into
account the programmed movements and those coming from the independent
interpolator of the manual intervention as well as of the PLCOFFSET.
Safety distance.
• The work zone limits have a safety distance set in machine parameters (parameter
ZONELIMITTOL) or from the variables. The CNC stops the axis when it reaches the
safety distance of the zone; i.e. if the safety distance is 0.1 mm, the programmed
coordinate can be, at the most, 0.1 mm before the limit.
Multi-channel system.
• When an axis changes channels, the CNC clears the limits of the axis in those zones.
• A channel axis cannot be changed while a zone that that axis belongs to is active.
Movements in automatic mode.
• Before starting the execution of a block, the CNC checks whether the end coordinates
are inside a forbidden zone or the path crosses a forbidden zone.. If so, the CNC stops
the movement of the axes and issues the corresponding error message. This check at
the beginning of the block will also be done in the simulation modes.
• If manual intervention on an axis is enabled during the execution, from then on the CNC
only checks the real position for the zones with limits on that axis. During block
preparation, the CNC does not check the position for the zones with limits set on that axis.
Movements in jog mode (continuous, incremental jog or handwheels).
• When an axis reaches the limit of a zone, it stops and the CNC issues the corresponding
warning message.
• The axis stops at the most restrictive limit of all the work zones in the moving direction
respecting the safety distance (parameter ZONELIMITTOL). The CNC will look for the
most restrictive limits from all the no-exit zones. From all the no-entry zones, the CNC
will only consider the ones relevant to the position of the moving axis. The no-entry zone
is considered relevant if the rest of the axes defined in the zone are in it, but not the moving
axis.
• For no-exit zones, the CNC only checks the limit in the moving direction, thus allowing
the axis to return to the valid zone.