Mitsubishi Electric MELDAS 600M Series Instruction Manual page 394

(b) When
(7) Reference point return direction (150006 Dir (−))
This parameter sets the direction to move after the limit switch kicks the dog causing a
deceleration stop during dog-type reference point return. The direction is either positive "0" or
negative "1".
If the reference point position is in the positive direction from the near-point dog, set "0".
If the reference point position is in the negative direction from the near-point dog, set "1".
(a) When reference point return direction is positive (+)
(b) When reference point return direction is negative (−)
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CHAPTER 3 MAINTENANCE
3. Adjusting the Dog-Type Reference Point Return
Grid space
> Grid amount
2
This will not be the electrical zero point due to the grid mask.
Reference point before grid mask is
set
Near-point dog
Grid amount
To move in
+ direction
To move in
+ direction
Reference point
search engine
Grid mask amount = Grid amount +
Reference point after grid
mask is set
Grid mask
Grid space
2
Grid mask amount
Grid amount after grid mask is set
To move in
− direction
Dog
Reference point
Dog
III – 8
Grid space
2
To move in
− direction