4. REFERENCE POSITION ESTABLISHMENT
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[Classification] Output signal
[Function] This signal reports that manual referenceposition return has been selected
once.
[Output condition] This signal turns to “1” when:
Manual reference position return has been selected.
The signal turns to “0” when:
The selection of manual reference position return has terminated.
For details about this signal, see 3.1.2, “Feed Axis and Direction
Selection Signal”. Here, only notes on use of reference position return are
given.
NOTE
The direction of reference position return is predetermined
for each axis by parameter ZMI (No. 1006#5). If the tool is
fed in the opposite direction to the predetermined direction
in manual reference position return, the deceleration signal
for reference position return turns to “0”, and the tool is
returned to the point at which the deceleration signal turns
to “1” again (that is, the point where the deceleration limit
switch would be encountered if the tool were fed in the
predetermined direction). Then reference position return is
performed automatically in the predetermined direction.
ZRN
-- J 1
*DEC1
Grid
ZP1
ZRF1
Feedrate
Rapid traverse rate
FL rate
.....................
JOG mode or TEACH IN
JOG mode
Rapid
traverse
rate
Manual reference
position return selection
check sig nal MREF
<F004#5>
Feed Axis and Direction
Selection Signal