Installation manual
CNC 8035
CONCEPTS
Gear ratio management on axes and spindle
5.
(SOFT M: V15.3X)
(S
OFT T: V16.3X)
·251·
5.15 Gear ratio management on axes and spindle
The gear ratios on axes and spindle, depending on whether they are analog or CAN, are managed
as follows:
CAN
If axis parameters INPREV (P87) and OUTPREV (P88) are 0, they will be assumed as if they were
1. There is no need to set a.m.p. PITCH (P7), except in the following case:
If axis parameters DRIBUSLE (P63) = 0 and a.m.p. INPREV (P87) and OUTPREV (P88) are
0, it will consider a.m.p. PITCH (P7) (it will not be ignored).
The gear ratio for an axis is set as follows:
• PITCHB (P86) = Leadscrew pitch.
• INPREV (P87) = Input revolutions.
• OUTPREV (P88) = Output revolutions.
Analog
The gear ratio for an axis is set as follows:
• If axis parameters PITCHB (P86), INPREV (P87) and OUTPREV (P88) are 0, the gear ratios
are set as follows:
- PITCH (P7) = Leadscrew pitch.
- If there are gear ratios, PITCH (P7) = (leadscrew pitch x OUTPREV) / INPREV.
• If axis parameters PITCHB (P86), INPREV (P87) and OUTPREV (P88) are other than 0, the
CNC will assume these values and will not issue an error.
• If the value of any of these parameters is other than 0, the CNC shows a message indicating
that the parameters are wrong. In this case, in JOG mode or in execution, it displays an error
and it will not be possible to move the machine.
In any configuration where the values of INPREV or OUTPREV are indivisible, the
home signal will be generated from the home switch (DECEL*) on.
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