
B–63503EN–1/01
4. REFERENCE POSITION ESTABLISHMENT
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[Classification] Input signal
[Function] These signals decelerate the feedrate for manual reference position return
so that the reference position is approached at a low feedrate.
The deceleration signals are provided for axes in a one–to–one correspon-
dence. A number appended to a deceleration signal represents a con-
trolled axis number.
1 : Reference position return deceleration signal for the first axis
2 : Reference position return deceleration signal for the second axis
3 : Reference position return deceleration signal for the third axis
:
:
*DEC 1
[Operation] For the operation of the control unit in response to the deceleration signal,
see the description of the basic procedure for manual reference position
return.
[Classification] Output signal
[Function] These signals report that the tool is at the refernce position on a controlled
axis.
These siganls are provided for axes in a one–to–one corespondence.
A number appended to a signal represents a controlled axis number.
1 : Reference position return end signal for the first axis
2 : Reference position return end signal for the second axis
3 : Reference position return end signal for the third axis
:
:
ZP 1
[Output condition] These signals turn to “1” when:
D Manual reference position returns is completed, and the current
position is in the in–position area.
D Automatic reference position return (G28) is completed, and the
current position is in the in–position area.
D Reference position return check (G27) is completed, and the current
position is in the in–position area.
These signals turn to “0”when:
D The tool has moved from the reference position.
D An emergency stop is applied.
D A servo alarm is raised.
Reference position
return deceleration
signals *DEC1 to *DEC4
<X1009>
Reference position
return end signals ZP1 to
ZP4 <F094>