Mitsubishi Electric Q12DCCPU-V - Executing the Hardware Self-Diagnostic Test and Initialization Setting

16 - 81
16.5 Hardware Self-Diagnostic Function
16.5.1 Hardware self-diagnostic test and initialization setting of the Q12DCCPU-V
16
TROUBLESHOOTING
(4) Executing the hardware self-diagnostic test and initialization setting
POINT
Do not power off the C Controller system or reset the C Controller module during
the self-diagnostics and setting.
Doing so may cause the C Controller module not to start normally.
Shift the RUN/STOP/MODE switch from STOP to RUN to execute the diagnostics and
setting.
During execution of the diagnostics and setting, the 7-segment LED indicates the
current mode, with the RUN LED flashing green.
• For mode 0, it alternately indicates "01 and the progress level(%)"
*1
and then the
number changes to 02, 03 ... and back to 00.
• For mode 1, the indication alternates between 01 and the progress level (%).
*1
* 1 The LED of the following C Controller module indicates 01 without showing the progress level (%).
• The Q12DCCPU-V with serial number (first five digits) "12041" or earlier
(5) Confirming the hardware self-diagnostic test and initialization setting
result
Confirm the diagnostics and setting result by the condition of the RUN LED (on) and
ERR. LED (flashing).
For the 7-segment LED diagnostic test for Mode 7, visually check the 7-segment LED
status. ( Page 16-83, Section 16.5.1 (5) (c))
(a) Normal completion
1) The flashing RUN LED turns off during the diagnostics and setting.
2) Turn the power off to finish the hardware self-diagnostic mode.
Remark
Module initialization setting (formatting of the standard RAM and setting of default
parameters) is actually effected next time the C Controller is started after
performing the module initialization setting procedure.
(b) Abnormal end
The ERR. LED starts flashing upon error detection during the diagnostics and
setting.
The 7-segment LED indicates a numeric value corresponding to the diagnostics
or setting of the error.
Upon detection of the failure, the diagnostics and setting will be terminated.
Figure 16.26 LED indication for normal completion
On
RUN
CF CARD
CH3 SD/RD
MODE
ERR.
USER