Mitsubishi Q01CPU User Manual page 359

12
TROUBLESHOOTING
(From previous page)
How is the "POWER" LED
of the power supply module?
Are all the power
supply modules powered on?
Is the wiring of the power supply
module correct?
Is the extension
cable connected properly?
(Isn't IN connected to
IN or OUT connected
to OUT?)
Is the CPU module
RESET/L. CLR switch in
the neutral position?
Replace the power supply module and
confirm that the "POWER" LED is turned
on green.
Can the CPU communicate
with the GX Developer?
A hardware fault may have occurred in any of the following modules.
1) CPU module
2) Main base unit, extension base unit
3) Extension cable
4) I/O Module (If one is installed)
5) Interlligent function module (If one is installed)
6) Network module (If one is installed)
Perform operations in due order, starting with the minimum system
where the power supply module and CPU module are mounted on the
main base unit.
If the module will not work, please consalt your local nearest Mitsubishi
or representative, explaining a detailed discription of the problem.
12.2.25 Flowchart for when the CPU cannot communicate with the GX Developer
NO
YES
NO
YES NO
NO
YES NO
RESET position
Other than RESET position NO
YES
NO
(When off)
Section 12.2.5
Flowchart for when
the "POWER" LED turns off.
(When on (red))
Section 12.2.6
Flowchart for when
the "POWER" LED turns on (red).
Check the wiring and power on all
the power supply modules.
Can the CPU communicate
with the GX Developer?
Connect the extension cable properly.
Can the CPU communicate
with the GX Developer?
Cancel the RESET.
Can the CPU communicate
with the GX Developer?
Hardware fault of power supply module.
Completed
12.2 Troubleshooting
YES
YES
YES
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