Installation manual
CNC 8035
MACHINE PARAMETERS
Spindle parameters
4.
(SOFT M: V15.3X)
(S
OFT T: V16.3X)
·155·
CONCLOOP (P62)
It indicates whether the spindle operates in closed positioning loop (as if it were an axis) or not.
In order to operate in closed positioning loop, the spindle must have an encoder and a good servo
system for the full speed range.
When working with M19, the first two sets of gains and accelerations are used regardless of the
value given to this parameter.
When working in closed positioning loop (M3, M4, M5) the third set of gains and accelerations is
used: ACCTIME3, PROGAIN3, DERGAIN3 and FFGAIN3.
SYNMAXSP (P63) M3M4SIM (P64)
Not being used.
SINMAGNI (P65)
It indicates the multiplying factor (x1, x4, x20, etc.) that the CNC must apply only to sinusoidal
feedback signals of the spindle.
For square feedback signals, this parameter must be set to 0 and the CNC will always apply a
multiplying factor of x4.
Spindle feedback resolution is set by s.m.p. NPULSES (P13) and SINMAGNI (P65).
SLIMIT (P66)
Maximum safety limit for the 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.
Value Meaning
NO It operates in open loop.
YES It operates in closed position loop (as if it were an axis).
Default value: NO
Possible values
Integer numbers between 0 and 255.
Default value: 0
Example
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
Between 0 and 65535 rpm.
Default value: 0
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