Mitsubishi Electric MELDAS C6 Interface Manual page 228

(2) High-speed return, reference point return
• The axis will move toward the reference point. The motion speed will be rapid traverse if the
rapid traverse signal is ON, and manual feedrate if OFF.
• When the reference point is reached, the movement will stop even if the feed axis select
signal is ON, and the 1st reference point reached signal (ZP1n) will turn ON.
• The feed axis select signal for high-speed return is valid only in the reference point direction.
If the opposite direction signal is designated, the NC alarm "M01 Operation error 0003" will
occur.
[Related signals]
(1) Feed axis select (+Jn, -Jn: Y44B, Y44C)
(2) Manual feedrate (*JV1~*JV16: Y770~774)
(3) Rapid traverse (RT: Y726)
(4) 1st reference point reached (ZP11~ZP114: X444~X5E4)
B con-
Signal name
tact
AUTOMATIC INITIALIZATION
—
MODE
[Function]
The automatic initialization mode is selected.
[Operation]
This mode is selected when automatic initialization is to be carried out with the machine end
stopper method of absolute position detection.
The initialization is started when the automatic initialization mode is selected, and the feed axis
select (+Jn, -Jn) signal in the direction of the machine end of the axis to be initialized is turned ON.
(Note 1) The automatic initialization mode is invalid when the absolute position detector is not
provided and when the machine end stopper method is not selected for the absolute
position detection.
(During feed axis selection, "M01 OPERATION ERROR 0024" will occur.)
(Note 2) This mode will not start in the following cases of the machine end stopper method
absolute position detection.
(The message "Start not possible" will display.)
• When "#0 INIT. SET" on the [ABS. POSITION SET] screen is not set to "1".
• When "#2 ZERO" on the [ABS. POSITION SET] screen has not been set.
• When "#2055 pushf" on the [ABS. POSI PARAM] screen has not been set.
• When "Z71 DETECTOR ERROR 0005" has occurred.
6. EXPLANATION OF INTERFACE SIGNALS
6.3 PLC Output Signals (Bit Type: Y***)
Signal
abbreviation
AST
6-3-31
1st system 2nd system
Y705 Y7E5
3rd system
Y8C5