Fagor CNC 8055, Manual

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18.1 Machine parameters for defining the filters
The parameters are updated with a RESET from the machine-
parameters screen while the machine is stopped. If an error comes
up when designing a filter, that filter will not be applied.
Each axis and spindle has the following machine parameters for
configuring the filters.
ORDER (P70) Order of the filter
The down slope is dampened down: The higher the number, the
greater the drop.
It is recommended to always set it to 3 when applying a filter. Before
setting it to another value, consult with Fagor Automation's technical
service.
TYPE (P71) Type of filter
Two types of filters may be used, namely "low passing" or "anti-
resonance".
When defining anti-resonance filters, parameters
NORBWIDTH
and
SHARE
must also be set.
FREQUEN (P72) Break or mid frequency
For the "Low passing" filter, it indicates the break frequency or
frequency at which its amplitude drops 3 dB or reaches 70% of the
nominal amplitude.
-3dB = 20 log (A/Ao) ==> A = 0.707 Ao
For the "Anti-resonance" (notch) filter, it indicates the mid frequency
or frequency at which the resonance reaches its maximum value.
For the axes For the spindle
ORDER (P70) ORDER (P67)
TYPE (P71) TYPE (P68)
FREQUEN (P72) FREQUEN (P69)
NORBWID (P73) NORBWID (P70)
SHARE (P74) SHARE (P71)
Possible values: From 0 to 4
By default: 0 (the filter is not applied).
Possible values: 0: Low passing
1: Anti-resonance (notch filter).
By default: Low passing.
Possible values: From 0 to 500.0
By default: 30.0