386
OPTIONS
96-8000
June 1999
11.4 FOURTH A XIS S ETUP
Installing a fourth axis in this machine requires that the servo control parameters be set for the type of fourth
axis that you have. Any of the HAAS servo rotary products may be used but there are different parameter
settings for each. If the fourth axis is purchased with the VF Series, the parameters will be set correctly for that
indexer. If the indexer is purchased at a later time, select Setting 30 and press the right arrow cursor until the
model of the fourth axis is shown. Then, press the WRITE button.
Once the parameters have been entered, be sure to turn PARAMETER LOCK back on (Setting 7). The fourth
axis can be disabled and re-enabled easily from the Setting 30.
WARNING !
NEVER CONNECT OR DISCONNECT THE FOURTH AXIS CABLE WHILE THE
CONTROLLER IS POWERED ON.
When turning the control on after connecting the fourth axis, be sure to enable it from Setting 30 BEFORE
doing a POWER UP/RESTART or AUTO ALL AXES. When turning the control on after disconnecting the fourth
axis, be sure to turn off Setting 30 BEFORE doing a POWER UP/RESTART or AUTO ALL AXES.
Setting 34 is used to specify the diameter of the part being turned by the rotary axis. This parameter must be
set close to the correct value in order to get the correct surface feed rate when an A-axis motion is involved in a
cut.
If the fourth axis is being set up for the first time, you will not be able to enable the fourth axis from settings if
Parameter 43 is set to disable the fourth axis. Make sure Parameter 43 is set correctly.
The tilting rotary table (TRT) is a little more complicated in its setup. One of the two axes may be the A-axis
that can be controlled in simultaneous interpolated moves but the other axis must be setup as an auxiliary (B)
axis and can only be used for positioning or single axis feeds; see "Auxiliary Axis Control" section. Depending
on which axis may be used in cutting, you can exchange these two.
The following table summarizes the fourth axis options:
Product: Max speed: Max torque: Comments:
(deg/sec) (ft - lb)
HA5C 270 45 Quick and easy to use for light loads only.
HA5C2,HA5C3 200 20/ Spindle HA5C2 fits along Y and X axes; HA5C3, HA5C4 only
HA5C4 along X axis.
TRT 160 60/80 (A/B) 210/100 (A/B) Convenient compact size fits VF-1,2.
TRT 210 50/60 (A/B) 200/210 (A/B) Fits VF-3 and VF-4 with some restrictions in tool length.
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