Fagor CNC 8060, Installation Manual

Page: 112 / 698

Installation manual.
CNC 8060
CNC 8065
2.
MACHINE PA
RAMETERS.
Gen
e
ral machin
e parameters.
·112·
(R
EF
: 1709)
2.3.30 Leapfrog.
LEAPDYNOVR
Dynamic response of the leap during the leapfrog.
Possible values: From 10 to 100 %.
Default value: 100 %.
Associated variable: (V.)MPG.LEAPDYNOVR
This parameter enables the dynamic response of the Z axis (the longitudinal axis) to be
reduced during the leapfrog for a smoother leap, in both the up and down flanks. Making the
movement smoother will result in a longer machining time when there are leapfrogs.
Height of the leapfrog.
The height level that is reached in a leapfrog (#LEAP) depends on the ACCJERK, DECJERK,
ACEL and DECEL values. The leapfrog requires high ACEL and DECEL values (of around
15,000 mm/s² or greater), as well as ACCJERK and DECJERK values (of around 20 times
the ACEL and DECEL).
Plate approach.
The CNC executes the approach to the plate with linear acceleration LACC1 and LACC2,
and thus this must not be very high (around a third of the ACEL and DECEL).
Parameter. Meaning.
SLOPETYPE Type of acceleration by default; linear, trapezoidal and square sine.
ACCEL
DECEL Acceleration and deceleration.
Parameters ACCEL and DECEL set the acceleration values when it is trapezoidal
or square-sine (bell shaped) (parameter SLOPETYPE).
ACCJERK
DECJERK Acceleration and deceleration jerk.
Parameters ACCJERK and DECJERK set the slope of the acceleration and
deceleration. Both parameters help limit the acceleration changes so the
machine runs more smoothly in small speed increments or decrements and with
FFGAIN values close to 100%. The lower the value assigned to these
parameters, the smoother the machine response, but the acc/dec time will
increase.
Parameter. Meaning.
LACC1
LACC2 Acceleration of the first and second section.
Parameters LACC1 and LACC2 set the acceleration values when it is linear
(SLOPETYPE parameter).
Example.
For an ACEL and DECEL = 18,000 mm/s².
• LACC1 and LACC2 = 6000 mm/s².
• ACCJERK and DECJERK= 360,000 mm/s³.