
3.MANUAL OPERATION OPERATION B-63944EN/02
- 916 -
Scale end
Reference mark
(1) (2) (3)
(a)
(b) (c)
Master axis
Slave axis
Start point End Point
(Example of 3 points measurement system)
In the above example, the following sequence is executed.
a. When the reference mark (1) of the master axis is detected, both
master axis and slave axis stop.
b. Both the axes begin to move again at a reference position return
FL feedrate.
c. When the reference mark (a) of the slave axis is detected, both
axes stop again.
d. Both the axes begin to move again at FL feedrate.
e. Both axes repeat the operation until all point ((2) -> (b) ->(3) ->
(c)) are detected.
f. When the slave axis detects the third reference mark (c), both the
axes end the reference position establishment.
NOTE
In case of this function is used with axis
synchronization control axes, if the value of
parameter No. 1883 and 1884 for both the master
and slave axes is 0, the reference position is not
established. Also, the reference position establish
signals (ZRF1, ZRF2, ...) are set to 0.
3.9.5 Axis Control by PMC
In PMC axis control, if the reference position return command (axis
control command code 05H) is issued for an axis having a distance coded
linear scale, reference position return is performed according to the
reference position return sequence for the distance coded linear scale.
Specifically, the following operations take place:
Before reference
position establishment
The reference position is established by detecting
two, three or four reference marks.
Movement to the reference position is not
performed.
After reference
position establishment
Positioning at the reference position is performed.