
6.REFERENCE POSITION NC FUNCTIONS B-63322EN/03
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6.7 Reference Position Shift
When reference position return is performed using a grid method, the
reference position can be shifted by a parameter-set distance without
having to move the deceleration dog.
This function is enabled by setting bit 4 of parameter No. 1008 (SFD)
to 1. When distance LSFT, shown below, is set in parameter No. 1850,
the reference position can be shifted.
Deceleration dog
Reference position
Grid point
Stop position (reference position shift amount)
Reference position shift amount
Grid shift amount: Distance to the first grid point after the deceleration dog is
turned off when the reference position shift amount is 0
Direction of reference
position return
Grid shift amount