Configuration Of A Gantry Axis - Fagor CNC 8060 Installation Manual

I n s t a l l a t i o n m a n u a l .
2.3.4

Configuration of a gantry axis.

GANTRY
Gantry-axes table.
This parameter shows the table to define the gantry axes of the system. A gantry axis is a
pair of axes that, due to the way the machine is built, must move at the same time and in
synchronism. At the CNC, only the movements of one of the axes must be programmed (the
master or main gantry axis). The other axis (slave gantry axis) is not programmable; it is
controlled by the CNC.
Example of a bridge-type milling machine with two gantry axes, X-U Z-W.
Requirements of the gantry axes.
Each pair of axes (master and slave) must meet the following requirements:
• The master axis must be defined in the AXISNAME table before the slave axis. Both axes
must belong to the same channel. The first three axes of the channel cannot be slaves.
• Both axes and drives must be of the same type (same AXISTYPE and DRIVETYPE
parameters for both axes).
• The channel changing permission (parameter AXISEXCH) must be the same in both
axes.
• Both axes and drives must have the same software limits (same LIMIT+ and LIMIT-
parameters for both axes).
• When the axes are rotary, both axes must be of the same type (same AXISMODE and
SHORTESTWAY parameters for both axes). Rotary axes that only turn in one direction
(parameter UNIDIR = YES) cannot be gantry.
• Hirth axes (HIRTH = YES) cannot be gantry axes.
• The I0 type (parameter I0TYPE) must be the same for both axes either non-distance-
coded or distance-coded (increasing or decreasing).
• When the gantry axis does not have distance-coded reference marks (I0), either both
axes or just the master axis may have a home switch ( parameter DECINPUT). The fast
and slow home search speeds (parameters REFFEED1 and REFFEED2) must be the
same for both axes.
GANTRY n
Configuration of the gantry axes.
This parameter shows the parameter table to define the gantry axes of the system. Each
gantry axis has the following machine parameters to configure it.
GANTRY
MASTERAXIS
SLAVEAXIS
WARNCOUPE
Z
X
Master or main axis.
Gantry axis. Slave axis.
Difference between the following errors of both axes for issuing a warning.
W
U
2.
CNC 8060
CNC 8065
(R : 1709)
EF
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