Fagor CNC 8060, Installation Manual, Page: 170 / 698

Installation manual.
CNC 8060
CNC 8065
2.
MACHINE PA
RAMETERS.
Machin
e
parame
ters
for the
axe
s
an
d
spind
les.
·170·
(R
EF
: 1709)
2.5.14 Work zones.
ZONELIMITTOL
Safety distance of the limits of the work zones.
Parameter valid for linear and rotary axes.
Parameter valid for analog drive, Sercos and simulated.
Possible values: From 0 to 99999.9999 mm or degrees / from 0 to 3937.00787 inch.
Default value: 0.1000 mm or degrees / 0.00394 inch.
Associated variable: (V.)[ch].MPA.ZONELIMITTOL.xn
Safety distance applied by the CNC to the axis with respect to the limit of the work zone. When
a work zone is active, the CNC stops the axes when one of them reaches the safety distance.
The safety distance is defined per axis and each axis will have the same safety distance for
all the zones..
The safety distance may be modified with the following variable which will assume the value
of this parameter on startup.
2.5.15 Runaway protection and tendency test.
TENDENCY
Activation of tendency test.
Parameter valid for linear and rotary axes and spindles.
Parameter valid for analog drives and simulated drives.
Possible values: Yes / No.
Default value: No.
Associated variable: (V.)[ch].MPA.TENDENCY.xn
This parameter enables two tests:
• Axis tendency watch.
This test watches that the real movement coincides with the theoretical movement, from
the time period set in parameter ESTDELAY. If no theoretical movement has been
programmed for the axis, the test detects whether the axis is moving in one direction
longer than the time indicated in parameter ESTDELAY. If no theoretical movement has
been programmed for the axis, the test detects whether it is moving in the opposite
direction longer than the time indicated by ESTDELAY.
• Runaway protection.
This test watches the real movement of the axis from startup to detect if runs away
considering the time defined in the parameter TENDTIME.
If this alarm is canceled, the CNC shows on power-up a message indicating that this safety
is disabled. This situation can only be allowed during setup; once setup is completed, this
alarm must be enabled.
TENDTIME
Time to detect axis runaway.
Parameter valid for linear and rotary axes and spindles.
Parameter valid for analog drives and simulated drives.
Possible values: From 0 to 65535 ms.
Default value: 0.
Associated variable: (V.)[ch].MPA.TENDTIME.xn
When the runaway test is active, this parameter defines the time the CNC must wait before
issuing an error message. We recommend to set a short time (about 4 sampling periods)
to prevent the axis from moving too far.
(V.)[ch].A.ZONELIMITTOL.xn Safety distance of the limits of the work zones.