Mitsubishi Electric MELDAS C6 Interface Manual page 219

(Note 1) If "Feed axis select" plus [+] and minus [-] signals turn ON at the same time, neither plus
signal nor minus signal is selected (same as the case where "Feed axis select" signal is
OFF.)
(Note 2) If "Feed axis select" signal turns ON before jog, incremental or reference point return
mode is selected, the "Feed axis select" signal is ignored. In this case, the signal should
be turned OFF and then ON.
(Note 3) If reset is exerted while "Feed axis select" signal is ON, or "Feed axis select" signal turns
ON during reset, the signal is ignored even when the reset condition is canceled. In this
case, the "Feed axis select" signal should be turned OFF and then ON.
(Note 4) The "Feed axis select" signal will be invalid even if turned ON while the corresponding axis
is decelerating (when command output is not completed). The signal must be turned OFF
and ON again after the deceleration has completed completely (command output is
completed). Special care is required when the feed axis direction changes.
(Note 5) When two or more part systems are used, even if the 1st part system and 2nd part system
feed axis select turn ON in the same cycle (scan) of the sequence, the start up may not be
completely simultaneous.
[Related signal]
(1) Feed axis select (-) nth axis (-Jn: Y44C)
B con-
Signal name
tact
FEED AXIS SELECT (-)
—
nTH AXIS
[Function]
This signal is used to feed the axis in the minus (-) direction during jog feed, incremental feed or
reference point return mode in manual operation.
These signals are for each control axis, and the number at the end of the signal name indicates the
control axis No.
(Refer to the Feed axis selection (+) nth axis for details.)
[Operation]
The operation is the same as the "Feed axis select (+)".
Use this signal to move in the minus (-) direction.
[Related signals]
Feed axis select (+) nth axis (+Jn: Y44B)
6. EXPLANATION OF INTERFACE SIGNALS
6.3 PLC Output Signals (Bit Type: Y***)
Signal
abbreviation
-Jn
6-3-22
1st axis 2nd axis
Y44C Y47C
3rd axis
Y4AC