Installation manual
CNC 8055
CNC 8055i
MACHINE PARAMETERS
6.
SOFT: V02.2X
·165·
General machine parameters
MPGNPUL (P82)
General parameter MPGNPUL (P82) indicates the number of pulses per turn of the electronic
handwheel.
Example.
Having a Fagor electronic handwheel (25 pulses per turn) we would like to move 1 mm per
handwheel turn.
1. Set the axis parameter for the feedback input of the electronic handwheel AXIS1 (P0) through
AXIS7 (P6), to a value of 12 (Fagor 100P handwheel). Also set general parameter MPGAXIS
(P76) to indicate which axis has been assigned this handwheel.
2. Set parameter MPGNPUL=25 or 0 meaning 25 pulses per turn of the Fagor handwheel.
3. Since the handwheel outputs square signals and the CNC applies a x4 multiplying factor to them,
we get 100 pulses per turn.
4. The value to be assigned to parameter MPGRES depends on the axis resolution format.
With 5.3 mm type display format, set MPGRES=1.
With 4.4 mm type display format, set MPGRES=2.
With 6.2 mm type display format, set MPGRES=0.
MPG1CHG (P83) MPG1RES (P84) MPG1NPUL (P85)
MPG2CHG (P86) MPG2RES (P87) MPG2NPUL (P88)
MPG3CHG (P89) MPG3RES (P90) MPG3NPUL (P91)
These parameters must be used when the machine has several electronic handwheels, one per axis
and up to 3 handwheels.
Set the axis parameter for the feedback input of the electronic handwheel AXIS1 (P0) through AXIS7
(P6), to one of the following values:
Parameters "MPG1***" correspond to the first handwheel, "MPG2***" to the second one and
"MPG3***" to the third one.
The CNC uses the following order to know which one is the first, second and third handwheel: X,
Y, Z, U, V, W, A, B, C.
The meaning of parameters MPG*CHG, MPG*RES and MPG*NPUL is similar to the meaning of
parameters MPGCHG (P80), MPGRES (P81) and MPGNPUL (P82).
CUSTOMTY (P92)
It indicates the configuration being used.
Possible values
Integer numbers between 0 and 65535.
Default value: 0 (means 25)
Format Resolution
MPGRES=0 MPGRES=1 MPGRES=2
5.3 mm Resolution
Pulses / turn
0,001 mm
0,100 mm
0,010 mm
1,000 mm
0,100 mm
10,000 mm.
4.4 mm Resolution
Pulses / turn
0.0001 mm
0.0100 mm
0.0010 mm
0.1000 mm
0.0100 mm
1.0000 mm
6.2 mm Resolution
Pulses / turn
0.01 mm
1.00 mm
0.10 mm
10,000 mm
1.00 mm
100,000 mm
Value Meaning Value Meaning
21 Handwheel associated with X. 26 Handwheel associated with W.
22 Handwheel associated with Y. 27 Handwheel associated with A.
23 Handwheel associated with Z. 28 Handwheel associated with B.
24 Handwheel associated with U. 29 Handwheel associated with C.
25 Handwheel associated with V.
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