Specialized Concentrated Focused
speed can cause missing steps, damage to the machine tool or to the home switch due to axis
crash.
“REFP Dir”: it is the direction of rough positioning during backing to machine origin, i.e. the motion
direction of an axis towards the home switch during rough positioning (also known as coarse
positioning). This parameter is decided by the motor direction and installation position of the home
switch; at the same time, it is also related with the defined attribute of the input level and the
attribute of the home switch.
“Retract Dist”: this parameter is decided by the machine tool itself. After arriving at the machine
origin, the machine tool will move some distance away from the machine origin to get out of the
signal sensitive zone of the home switch. Its value is recommended as half of the screw pitch.
5.4.2. Operation Mode of Backing to Machine origin
After system start-up, pressing [OK] in the dialog box shown in Fig. 5-5 will home all the axes.
Back to REF.
Point?
OK
ESC
Fig. 5-5 Prompt dialog box of backing to machine origin
This method can only home all the axes. If you want to execute single axis backing to machine
origin, refer to the following steps.
Press the “Menu” key→ 3. Operations→ 1. Back REF Point, and then press the [OK] key to enter
the setup interface of backing to machine origin, in which press the “Up” or “Down” key to select the
desired mode. And then press the [OK] key to execute backing to machine origin in the selected way. It
is recommended to execute “Z Home” firstly. If “X Home” or “Y Home” is executed firstly, a message as
shown below will be displayed on the LCD prompting to execute “Z Home” firstly. To see all the
information, press the “Up” and “Down” keys.
Dangerous
operation,
OK
ESC
Fig. 5-6 Dangerous prompt for operation of backing to machine origin
At this time, you can press the [OK] key to enter the machining page and execute backing to
machine origin for the selected axis, or press [ESC] to cancel and return to the previous page.
「28」Machine Tool Debugging
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