HUST CNC H6D-B3 MANUAL
37
Setting by engineer.※
5. Rotate Direction Format：□ (Default = 0)
Setting = 0, Motor rotates in the positive direction. (CW)
Setting = 1, Motor rotates in the negative direction. (CCW)
This MCM can be used to reverse the direction of motor rotation if desired. So
you don’t have to worry about the direction of rotation when installing motor.
These parameters will affect the direction of HOME position
6. HOME Direction Format：□ (Default = 0)
Setting = 0, Tool returning to HOME in the positive
direction.
Setting = 1, Tool returning to HOME in the negative
direction
7. HOME Speed 1 Format：□□□□ (Default = 2500)
Setting by engineer.※
8. HOME Speed 2 Format：□□□□ (Default = 40)
Unit: mm/min
Set the moving speed when the tool, after having touched the HOME limit switch,
is searching for the encoder grid signal during HOME execution. H4B CNC has
three (3) different speeds when you execute HOME function as shown by Fig A
～D.
Speed 1: The motor accelerates to Speed 1 and its maximum speed is determined
by the settings of MCM #136, #137, #138, #139 (X, Y, Z, A-axis) and
the direction by MCM #130, #131, #132, #133. When tool touches the
home limit switch, it starts deceleration to a stop.
Speed 2: The motor accelerates again to speed 2 and its maximum speed is equal
to 1/4 of Speed 1 and the direction is by MCM #231~#234. When tool
starts leaving the home limit switch, it starts deceleration to a stop.
Speed 3: The motor accelerates to speed 3 and its maximum speed is determined
by the settings of MCM #142~#145 and the direction by MCM
#231~#234. Once the encoder grid index is found, motor decelerates to
a stop. This is the HOME position.
Note that the length of the Home limit switch should be longer than the distance
for the deceleration of Speed 1. Otherwise, serious error may result. The equation
to calculate the length of the Home limit switch is
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