Installation manual
CNC 8055
CNC 8055i
CONCEPTS
7.
SOFT: V02.2X
·407·
Gear ratio management on axes and spindle
Analog spindle
Parameters involved in the calculation of the velocity command:
spindle parameter MAXGEAR1 (P2) = maximum rpm of the first gear = 1000.
spindle parameter MAXGEAR2 (P3) = maximum rpm of the second gear = 2000.
spindle parameter MAXGEAR3 (P4) = maximum rpm of the third gear = 3000.
spindle parameter MAXGEAR4 (P5) = maximum rpm of the fourth gear = 3500.
spindle parameter MAXVOLT1 (P37) = maximum velocity command for the first gear = 9500.
spindle parameter MAXVOLT2 (P38) = maximum velocity command for the second gear =
9500.
spindle parameter MAXVOLT3 (P39) = maximum velocity command for the third gear = 9500.
spindle parameter MAXVOLT4 (P40) = maximum velocity command for the fourth gear.
= 9500 x 3500 rpm / 4000 rpm = 8312.
Parameters involved in the calculation of the position feedback.
Spindle parameter NPULSES (P13) = number of pulses per turn of the encoder = 18000.
Spindle parameter SINMAGNI (P65) = Multiplying factor if the encoder is sinusoidal = 200.
spindle parameter INPREV1 (P72) = Input revolutions of the first gear =2.
spindle parameter INPREV2 (P74) = Input revolutions of the second gear =2.
spindle parameter INPREV3 (P76) = Input revolutions of the third gear =2.
spindle parameter INPREV4 (P78) = Input revolutions of the fourth gear =2.
spindle parameter OUTPREV1 (P73) = output revolutions of the first gear =3.
spindle parameter OUTPREV2 (P75) = output revolutions of the second gear =3.
spindle parameter OUTPREV3 (P77) = output revolutions of the third gear =3.
spindle parameter OUTPREV4 (P79) = output revolutions of the fourth gear =3.
Calculation of motor speed for the MAXVOLT of each range (gear):
Motor speed = MAXGEAR x INPREV / OUTPREV
Motor speed with MAXVOLT1 = 1000 x 4 / 1 = 4000 rpm.
Motor speed with MAXVOLT2 = 2000 x 2 / 1 = 4000 rpm.
Motor speed with MAXVOLT3 = 3000 x 4 / 3 = 4000 rpm.
Motor speed with MAXVOLT4 = 3500 x 1 / 1 = 3500 rpm.
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