Flowchart For When The Err Terminal (Negative Logic) Is Turned Off (Opened) - Mitsubishi Q01CPU User Manual

12
TROUBLESHOOTING
12.2.2 Flowchart for when the ERR terminal (negative logic) is turned off
(opened)
The following shows the flowchart for when the "ERR terminal" turns off (opened) at
power-on or during operation of the programmable
Basic
Note12.4
Remove the corresponding power
supply module, and mount it to the
normal base unit.
(Do not mount any modules other
than the power supply module.)
Mount the corresponding power
supply module to the original system
again, and remove all modules other
than the power supply module from
the base unit.
Note4
Basic
The Basic model QCPU does not have the "MODE" LED. In the flowchart, proceed to "Off".
Note12.4

12.2.2 Flowchart for when the ERR terminal (negative logic) is turned off (opened)

The ERR terminal has
turned off (opened).
How is the "ERR."
LED of the CPU
module?
Not flickering
Is power supplied?
Is the power supply
voltage proper?
YES
How is the "MODE"
Note12.4
LED of the
CPU module?
Off
How is the "POWER" LED
of the power supply
module?
Turned on green
(To next page)
controller.Note4
Flickering (CPU
module is in stop
error)
Check error details and take action
according to the details.
NO
Supply power of proper voltage.
On (green)
On (red)
The corresponding power supply module is
faulty
(Replace it with a normal power supply
module).
Section 12.4.2
( Section 12.4.2)
12.2 Troubleshooting
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