Mitsubishi Electric MELDAS C6 Interface Manual page 237

B con-
Signal name
tact
—
RESET & REWIND
[Function]
This signal resets the controller.
During memory operation, the head of the machining program currently being run can be called out.
The reset key in the communication terminal is also set to Y71A by the sequence program.
[Operation]
When this signal (RRW) turns ON:
(1) Ongoing axis motion is decelerated and stopped.
(2) CNC is reset after axis motion stops. In about 0.5 second after CNC is reset, reset output signal
(status signal RST) turns ON.
(3) At the same time as CNC is reset, "rewind" (RWD) signal turns ON.
• In memory operation mode, the head of program in execution is read (memory index).
(4) While the signal (RRW) is ON, automatic operation and manual operation are impossible.
(5) G command modal is initialized.
(6) Tool compensation (offset) data are canceled (no motion).
(7) Error/alarm is reset.
(8) MST code outputs are held. (strobe signal turns OFF)
(9) M code independent output (M00, M01, M02 and M30) is turned OFF.
<Operation example>
The process when M02 or M30 are commanded in the program is shown below.
Generally, when M02 (or M30) is executed by the program, this signal (RRW) will be returned when
the designated operation is completed. M function finish 1 (FIN1) and M function finish 2 (FIN2) will
not be returned.
(Refer to *1 in the following drawing.)
M02 (M02), M30 (M30)
Reset & rewind (RRW)
Reset & output (RST)
Rewind output (RWD)
M function complete (FIN1, FIN2)
[Related signals]
In "reset" (RST: X615)
In rewind (RWD: X617)
6. EXPLANATION OF INTERFACE SIGNALS
6.3 PLC Output Signals (Bit Type: Y***)
Signal
abbreviation
RRW
6-3-40
1st system 2nd system
Y71A Y7FA
*1
About 0.5 s
This interval is unknown.
3rd system
Y8DA