Reset Operation; Basic Model Qcpu And Universal Model Qcpu - Mitsubishi Electric Q26UD(E)HCPU User Manual

6.4

Reset Operation

6.4.1

Basic model QCPU and Universal model QCPU

For the Universal model QCPU, the RUN/STOP/RESET switch of the CPU module is used to switch between the RUN
status and STOP status and to perform RESET operation.
When using the RUN/STOP/RESET switch to reset the CPU module, setting the RUN/STOP/RESET switch to the
reset position will not reset it immediately.
Hold the RUN/STOP/RESET switch in the RESET position until reset processing is complete (the flashing ERR. LED turns
off).
If you release your hand from the RUN/STOP/RESET switch during reset processing (the ERR. LED is flashing), the switch
will return to the STOP position and reset processing cannot be completed.
Perform reset operation using the RUN/STOP/RESET switch as shown in the following flowchart.
Hold the RUN/STOP/RESET switch in the
"RESET" position (1 second or more).
The ERR. LED flashes several times
182
Start
RESET RUN
RUN/STOP/RESET
switch
STOP
(3 to 4 times).
MODE
RUN flashes.
ERR.
USER
BAT.
BOOT
The "ERR. LED" goes off.
MODE
RUN Goes off.
ERR.
USER
BAT.
BOOT
Return the RUN/STOP/RESET
switch to the "STOP" position.*
RESET RUN
RUN/STOP/RESET
switch
STOP
Completed
.......................
Reset operation is started using
the RUN/STOP/RESET switch.
.......................
Reset is accepted and reset
processing is performed.
.......................
Reset is completed.
.......................
Reset is canceled.
* :
Releasing your hand from the
RUN/STOP/RESET switch returns it
to the STOP position.