Mitsubishi Electronics 60/60S Manuel D’Utilisation

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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).