Mitsubishi Electric MELDAS C6 Interface Manual page 102

B con-
Signal name
tact
1ST REFERENCE POINT
—
REACHED, nTH AXIS
[Function]
This signal indicates that the axial component of the nth axis is ON the 1st reference point.
This signal is available per control axis, and the last number of the signal abbreviation indicates the
control axis No.
ZP1n
1 : 1st reference point reached, 1st axis
2 : 1st reference point reached, 2nd axis
:
14 : 1st reference point reached, 14th axis
[Operation]
(1) The signal turns ON when:
• 1st reference point reached is attained with reference point return mode in manual operation.
Refer to the REFERENCE POINT RETURN (ZRN) section for details on returning.
• 1st reference point reached is attained with G28 command in automatic operation.
(Note) If 1st reference point reached is achieved in other operation mode, or by other command,
the signal does not turn ON.
(2) The signal turns OFF when:
• The axial component in position is relocated from the 1st reference point by motion command.
• "Emergency stop" signal is input or servo alarm occurs, causing stop to the machine.
(3) Reference point return operation pattern
Dog-type reference point return
High-speed reference point return
[Related signals]
2nd reference point reached (ZP21~ZP214: X445~X5E5)
3rd reference point reached (ZP31~ZP314: X446~X5E6)
4th reference point reached (ZP41~ZP414: X447~X5E7)
6. EXPLANATION OF INTERFACE SIGNALS
6.1 PLC Input Signals (Bit Type: X***)
Signal
abbreviation
ZP11~ZP114
:
Near-point dog
Reference point
Near-point dog
Reference point
6-1-13
1st axis 2nd axis
X444 X464
• When basic machine coordinate system is not
established.
• When dog-type return is selected with setup
parameters, basic specification parameter "#1063
mandog" in the manual mode.
• When basic machine coordinate system is
established.
• When high-speed return is selected with setup
parameters, basic specification parameter "#1063
mandog" in the manual mode.
(Note)
Reference point return will be the high-speed
return when the basic machine coordinate
system is established (2nd time and
following).
3rd axis
X484