Ref Datum Memory Function - Find Ref - Easson ES-12 Operation Manuals

In all basic functions of this DRO, such as dimension prset, zeroing, center find and etc., the DRO will
Function :
automatically store the relative distance between the REF mark and the work piece datum ( ABS Zero
position ), however, it is the most vital and basic that the DRO must know where the REF mark is located.
The REF FIND function is to let the DRO know where is the REF mark located. If the operator do not
perform this function at least one time after the power up of the DRO, then the DRO don't
know where ther REF mark is located, and subsequently all the recall 0 function is totally
useless and incorrect !
Therefore, it is a very good practise to perform the REF FIND function at least one time on
every power up of the DRO, or before any important machining, if you have perform the REF FIND
once after the power up of the DRO, then you have no need to worry of losting your work piece datum
no matter what power failure accident happen. You are for sure the work datum will never losted.
Step 1 : enter into the ref function, select the FIND REF ( find REF mark )
only when the DRO is
now in ABS coordinate,
it can enter into the
ref function
0.000
X
mm
0.000
Y
mm
0.000
Z
mm
ABS
Step 2 : select the axis of which the REF mark needed to be found
X
mm
Y
mm
Z
mm
ABS SEL AXIS
Step 3 : move the machine across the center of the glass grating scale until the X axis digit display
start run. ( please notice that the machine move must toward the positive direction )
X 0.000
mm
Y
mm
Z
mm
ABS X REF
To improve the accuracy of the REF FIND, and avoid any backlash errors caused by old or inaccuracy machines,
the REF FIND is designed to work on positive direction only

REF datum memory function - FIND REF

X
Y
Z
ABS FIND REF
X
Y
Z
ABS RECALL 0
select X, Y, Z or U axis
U
or
to select all
axes respectively
move the machine until
axis display start run
FIND REF
( find REF mark )
mm
mm
mm
RECALL 0
( recall work zero )
mm
mm
mm
select X axis
in this example
X
Y
Z
ABS
X
Y
Z
ABS
move the machine across the
centre of the glass grating
scale. ( must moving towards
positive direction, otherwise
no start count is possible )
- 22 -
X
mm
Y
mm
Z
mm
ABS FIND REF
to select the FIND REF
( find REF mark )
0.000
mm
mm
mm
X REF
1.250
mm
mm
mm
X REF