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CNC 8055 / CNC 8055i
Functions
associated to
machine safety
Bit 16 of g.m.p. “ACTBAKAN (P144)” indicates the backlash peak
being used.
A finer tuning of the leadscrew backlash consists in testing the circle
geometry and watch for internal peaks when changing quadrants
(left figure). In these cases, it is recommended to set bit 15 of g.m.p.
“ACTBAKAN (P144)” to "1" to eliminate the internal peaks.
Under these conditions, the CNC eliminates the leadscrew backlash
peak as soon as it detects a movement reversal. If the internal peaks
are not eliminated, adjust the leadscrew backlash compensation
better.
ACTBAKAN (P144)
It has 16 bits counted from left to right.
By default, all bits are set to "0".
19 Functions associated to machine safety
19.1 Limit the feedrate of the axes and the spindle speed
It is possible to limit the feedrate of the axes and the spindle turning
speed.
FLIMIT (P75)
SLIMIT (P66)
The a.m.p. "FLIMIT" sets the maximum feedrate for each axis and
the s.m.p. "SLIMIT" sets the maximum turning speed for each
spindle.
FLIMITAC (M5058)
When the PLC sets this signal high, it limits the feedrate of all the
axes. It does not let any feedrate to exceed the value set by the
corresponding a.m.p. "FLIMIT (P75)" .
SLIMITAC (M5059)
When the PLC sets this signal high, it limits the speed of all the
spindles. It does not let any feedrate to exceed the value set by the
corresponding s.m.p. "SLIMIT (P66)" .
The limitation is applied in all work modes, including the PLC
channel. When the mark is high, the CNC applies the limitation and
when going low, it restores the programmed F or S.
0 rectangular leadscrew backlash peak
1 exponential type of leadscrew backlash peak
By default 0
bit Function bit Function
19
210
3
Additional pulse with G2
/ G3
11
412
513
614
715
It minimizes internal peaks
detected with the circle
geometry test
816
Exponential leadscrew
backlash peak
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