Fagor CNC 8060, Руководство по установке, Страница: 205 / 698

Installation manual.
CNC 8060
CNC 8065
MACHINE PA
RAMETERS.
2.
Mac
h
ine parameters for
the
axes. Work sets.
·205·
(R
EF
: 1709)
ACFWFACTOR
Acceleration time constant.
Parameter valid for linear and rotary axes and spindles.
Parameter valid for analog drives, velocity-Sercos drives and simulated drives.
Possible values: From 0.001 to 1000000.0000 ms.
Default value: 1000.0000 ms.
Associated variable: (V.)[ch].MPA.ACFWFACTOR[set].xn
The CNC only takes this parameter into account when working with AC-forward; parameter
FFWTYPE if it is an analog or simulated drive and OPMODEP if it is a velocity-Sercos drive.
No function in Sercos position.
It is recommended to assign to this parameter a value close to the system's response time.
Since the system response time is usually an unknown value that depends on the inertia of
the machine and on the drive adjustment, it is recommended to try with several values. The
best adjustment is achieved when minimizing the following error as much as possible but
without inverting the peaks.
Peculiarities of the laser model.
On laster machines with gap control, the TRANSDELAY parameter of the axis associated
with the sensor must have a value of 0 (zero) in order for the machine response to be the
same with and without gap control. Delay compensation is implemented with the
ACFWFACTOR parameter, which will have a higher value than if the TRANSDELAY
parameter is applied (approximately the sum of TRANSDELAY and ACFWFACTOR in an
analog or Sercos speed adjustment). In an adjustment without the TRANSDELAY
parameter, the following error peaks in accelerations and stops will be greater than with an
adjustment using this parameter.
ACFGAIN
Percentage of AC-Forward in automatic.
Parameter valid for linear and rotary axes and spindles.
Parameter valid for analog drive, Sercos and simulated.
Possible values: from 0 to 120 %.
Default value: 0.
Associated variable: (V.)[ch].MPA.ACFGAIN[set].xn
See machine parameter MANACFGAIN.
MANACFGAIN
Percentage of AC-Forward in jog mode.
Parameter valid for linear and rotary axes and spindles.
Parameter valid for analog drives and simulated drives.
Possible values: from 0 to 120 %.
Default value: 0.
Associated variable: (V.)[ch].MPA.MANACFGAIN[set].xn
The CNC takes this parameter into account only when working with AC-Forward; parameter
ACFWFACTOR.
Correct adjustment.
System response without AC-forward gain (10 µm
per square).
Inverted peaks; poor adjustment.
System response with AC-forward gain (1 µm per
square).