HUST CNC H6D-T - Page 294

HUST CNC H6D-T Manual
7 - 26
Therefore, the setting value for MCM #120 (D) and #121 (N) can be one of
the three combinations. They are all correct.
(1) D=5, N=36 (2) D=10, N=72 (3) D=50000, N=360000
Ex 3 (Position Linear Axis):
The X-axis is an ordinary linear axis (MCM#781= 0) with the guide screw pitch = 5.000
mm.
When the motor rotates one turn, 10000 pulses will be generated.
Gear ratio is 5:1 (When the servo motor rotates 5 turns, the guide screw rotates 1 turn.)
X-axis resolution: denominator setting value (MCM#241)= 10
X-axis resolution: numerator setting value (MCM#242)= 1
Ex 4 (Position type rotational axis):
The Y-axis is a rotational axis (MCM#782 = 1). The angle for rotating 1 turn = 360.000
(degree)
One turn of the motor will generate 10000 pulses.
Gear ratio is 5:1 (When the servo motor rotates 5 turns, the Y-axis rotates 1 turn.)
Y-axis resolution: denominator setting value (MCM#243) = 5
Y-axis resolution: numerator setting value (MCM#244) = 36
Note 1: When the resolution <1/20, the motor may have the problem of not able
to reach its maximum rotation speed.
Note 2: When the resolution 1/100, the software travel limit should be within
the following range:
-9999999 ~ 999999, otherwise an error message may occur which cannot
be released.
Ex: For MCM#241=400 and MCM#242=2, when the X-axis resolution is smaller
than 1/100, the setting values of the software travel limit for the X-axis:
Parameter 581 should be less than 9999999 and Parameter 601 should be
greater than -999999.
MCM# 259~280 System Reserved
281. Home Direction for Tool, X-axis.
1
5
Resolution = ×
5000
10000
1
10
=
1
5
Resolution = ×
360000
10000
36
5
=