Fagor 8070 BL, Programming Manual

Page: 393 / 444

Programming manual.
CNC 8070
STATEMENTS AN
D INSTRUCTIONS
22.
Pro
g
ramming statements
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EF
: 1709)
22.1.8 Axis parking
Some machines, depending on the type of machining, may have two different configurations
(axes and spindles). In order to prevent the elements not present in one of the configurations
from causing an error message (drives, feedback systems, etc.) the CNC allows parking
them.
Several axes and spindles may stay parked at the same time, but they must always be parked
(and unparked) one by one.
Use the
#PARK
instruction to park the axes and spindles and
#UNPARK
to cancel (unpark)
them. The axes and spindles stay parked after executing an M02 or M30, after a RESET
and even after turning the CNC off and back on.
Considerations about axis parking
The CNC will not allow parking an axis in the following cases.
• If the axis belongs to the active kinematics.
• If the axis belongs to an active transformation #AC or #ACS.
• If the axis belongs to an active angular transformation #ANGAX .
• If the axis belongs to a gantry, tandem pair or is a slaved axis.
• If the axis belongs to an active tangential control #TANGCTRL.
Considerations about spindle parking
The CNC will not allow parking a spindle in the following cases.
• If the spindle is not stopped.
• If the spindle is working as a C axis.
• If
G96
or
G63
is active and it is the master spindle of the channel.
• If
G33
or
G95
is active and it is the master spindle of the channel or the spindle is used
to synchronize the feedrate.
• If the spindle belongs to a tandem pair or is a synchronized spindle, be it the master or
the slave.
If after parking the spindles, there is only one spindle left in the channel, it will become the
new master. If a spindle is unparked and it is the only spindle of the channel, it is also assumed
as the new master spindle.
#PARK
Parks an axis
This instruction is used to park the selected axis or spindle. When any of them is parked,
the CNC interprets that it no longer belongs to the machine configuration and no longer
controls it (ignoring the signals from the drive and from the feedback systems, etc.).
Once an axis or spindle has been parked, the part-program cannot mention it (movements,
speed, M functions, etc.).
The programming format is as follows:
#PARK <axis/spindle>
Each element (axis or spindle) must be parked separately. However, a second element can
be parked without having to unpark the first one.
For example, a machine that swaps a normal spindle with a rectangular one may have the
following axes configurations:
• With a normal spindle, X Y Z axes configuration.
• With an orthogonal spindle, X Y Z A B axes configuration.
In this case, when working with the normal spindle, the A and B axes may be parked to ignore
their signals.