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4. Absolute Position Detection System
4.3 Starting up Absolute Position Detection System
III-26
(ii) Setting of reference point
The reference point can be created in the following method by setting the "#2037 G53ofs" of the
[ZERO-RTN PARAM] screen.
(Example 1)
To set the reference
point at the same
point as the basic
machine coordinate
zero point.
A
bsolute position
basic point
Basic machine
coordinate zero point
"ZERO"
"G53ofs" = 0
Reference point
(Machine basic position
or electrical basic
position)
(Example 2)
To set the reference
point at a position
200.0 to the front of
the basic machine
coordinate zero
position on the
positive side.
(When the basic
machine coordinate
zero point is
300.0mm to the front
of the absolute
position basic
position.)
A
bsolute position
basic point
Basic machine
coordinate zero
point
"ZERO" = 300.0
"G53ofs" = 200.0
Reference point
(Machine basic position
or electrical basic
position)
(iii) Common precautions for initialization
(Note 1) "#0 INIT. SET" parameter setting (axis for which zero point is to be initialized) can be set for
all axes or for one axis.
(Note 2) "#0 INIT. SET" parameter cannot be turned OFF with the keys. The power must be turned OFF
once. If even one axis is ON for this parameter, the message "INITIAL SET (ABS)" will display
on the operation status section of all screens, and the axis in initialization will be output. The
automatic, MDI and manual zero point return operation will be interlocked at this time.
(Note 3) The "#2 ZERO" setting can be made at any level is "#0 INIT. SET" parameter is set to "1".
(Note 4) The grid point must be passed once after the power is turned ON to execute zero point
initialization. If the grid point has not been passed once, "NOT PASS" will appear at "MAC
POS".
(Note 5) After the absolute position has been established, save the necessary data in the memory.