Fagor CNC 8055i FL EN - Page 230

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Installation manual
CNC 8055
CNC 8055i
6.
MACHINE PARAMETERS
SOFT: V02.2X
Axis parameters
When detecting that the FAGOR filter order is too high for the filter configuration (according to
parameters FREQUEN and LOOPTIME), on power-up it will issue the message: "It is recommended
to lower the order of the frequency filter".
It is recommended to start from low values (e.g.: ORDER=5) and go on increasing this value until
that message is displayed.
TYPE (P71)
Filter type. There are three types of filter: "low passing", "notch filter" and "FAGOR (low passing)".
To obtain a good machining quality, all the axes and the spindle interpolating with each other should
be defined with the same type of filter and with the same frequency.
When defining anti-resonance filters, parameters NORBWIDTH and SHARE must also be set.
"Low passing" filter.
The "low passing" filter is used to limit the jerk by making the movements smoother although it has
the drawback that it rounds the corners slightly.
Anti-resonance filter (notch filter).
The "anti-resonance" (notch) filter must be used when the machine has a resonance frequency to
be eliminated.
CNC start-up with Fagor filters active.
If on CNC start-up, Fagor filters are active on any of the axes and axis parameter SMOTIME (P58)
is other than 0 on the same axis, the CNC displays the following error message:
• Parameter TYPE=2 is incompatible with general parameter SMOTIME.
Value Meaning
0 "Low passing" filter.
1 "Anti-resonance" (notch) filter.
2 FAGOR "low passing" filter.
Default value: 0
Ao
f
FREQUEN
0,707·Ao (-3dB)
A
ff
1
2
FREQUEN
A
Ao
0,707·Ao (-3dB)
After start-up, if the value of the indicated parameter is not changed, the CNC will cancel that parameter
automatically.