Installation manual
CNC 8055
CNC 8055i
MACHINE PARAMETERS
6.
SOFT: V02.2X
·257·
Spindle parameters
SLIMIT (P66)
Maximum safety limit for spindle speed. This limit is activated from the PLC and is applied in all the
work modes, including the PLC channel. When the spindle is controlled by the PLC by means of
the PLCCNTL mark, this limit is ignored.
This limit is activated using the mark SLIMITAC (M5059). When this limit is canceled, the CNC
recovers the programmed speed.
This limit permits clearing the spindle speed temporarily via PLC, e.g. when opening the doors, etc.
ORDER (P67)
Filter order. The down ramp is dampened down; the larger the number the greater the drop.
When applying a filter, it must be set with an order of ·3·. Before setting it to another value, consult
with Fagor Automation's technical service.
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 (P68)
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. For the spindle, the filters are
only applied in M19 and in rigid tapping where the spindle is interpolated with the Z axis.
When defining anti-resonance filters, parameters NORBWIDTH and SHARE must also be set.
Sample
We would like to obtain a 0.001º resolution by using a 3600 pulse/rev sinusoidal encoder.
We must calculate the multiplying factor "SINMAGNI" to be applied by the CNC to the pulses provided by
the encoder in order to obtain the desired resolution.
SINMAGNI = degrees per turn / (number of pulses x resolution)
SINMAGNI = 360 / (3600 x 0,001) = 100
Therefore: NPULSES =3600 SINMAGNI=100
Possible values
Values with 3 decimals between 0.000 and 200000.000 rpm.
Default value: 0
Value Filter type
[0 - 4] Low passing filter
[0 - 4] Notch filter (anti-resonance)
[0 - 30] FAGOR filter
Default value: 0 (the filter is not applied).
If the filter has been designed wrong, it will not be applied.
The filters are not applied while moving with an electronic handwheel or a mechanical handwheel. It
is recommended not to activate these filters on machines carrying out movements against a hard stop.
Value Meaning
0 "Low passing" filter.
1 "Anti-resonance" (notch) filter.
2 FAGOR "low passing" filter.
Default value: 0
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