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4. Operation Mode
4.4 Return to Reference Position Mode
II-10
If the return direction is erroneous in high-speed return to reference position, an alarm occurs.
A return is made to the reference position at the rapid traverse feedrate.
Minus
Plus
Dog
Reference point
Operation procedure
Using the MODE SELECT switch, select the return to reference position.
Using the RAPID TRAVERSE OVERRIDE switch, set any desired override value.
Check the current
machine position.
Dog
Spindle head
Z plus
X plus
Coordinate system
Minus position
Plus position
Plus movement
Minus movement
Machine table
Limit switch
Reference point
The machine position depends on whether the near point detection limit switch is the plus or minus side with
the near point dog on the machine table as illustrated above as the reference.
When the limit switch exists on the dog, move to either plus or minus.
Using the FEED AXIS SELECT switch, move the machine.
If the limit switch exists in the minus direction as illustrated above, turn ON a plus
FEED AXIS SELECT switch.
For dog mode return to reference position, turn ON the FEED AXIS SELECT switch (+ or –) in the direction
where the dog and limit switch approach each other.
For high-speed reference point return, turn ON the FEED AXIS SELECT switch (+ or –) in the direction that
the spindle head approaches the reference point.
Hold the FEED AXIS SELECT switch ON during return to reference position until the machine passes by the
dog (dog mode) or the REFERENCE POSITION ARRIVAL lamp goes ON (high speed return).