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FX2N-64CL-M CC-Link/LT Master Block
12.2.3
TEST mode (self-loop-back test)
The table below shows the descriptions of errors during in the TEST mode (bit 6 of the DIP
switches are OFF and the bit 7 is ON in the FX
LEDs and their countermeasures.
Name
POWER
RUN
ERR.
L RUN
L ERR.
• When the FX
the PLC is stopped.
(The self-loop-back test will be executed normally, and the test result will be indicated by the
status indicator LEDs.)
Description
Lit: Power is supplied
Extinguished:Power is not
supplied
Lit: FX
-64CL-M is operating
2N
normally
Extinguished: FX
-64CL-M is
2N
abnormal
Power is interrupted
Lit: Communication speed setting
error occurred
Flickering: Power supplied for
communication is
abnormal
DIP switch for
operation setting was
changed during
operation
Extinguished: FX
-64CL-M is
2N
operating normally
Lit: Self-loop back Test was
finished normally
Extinguished: Self-loop back Test
was finished
abnormally
(Extinguished while
the self-loop back
Test is being
executed)
Lit: Self-loop back Test was
finished abnormally
Extinguished: Self-loop back Test
was finished
normally
(Extinguished while
the self-loop back
Test is being
executed)
-64CL-M is set to TEST mode while it is connected to the FX
2N
-64CL-M) indicated by the status indicator
2N
Countermeasures
Extinguished
• Confirm the capacity of the power for the PLC and
the supplied 5V DC power.
Extinguished
• Confirm the capacity of the power for the PLC and
the supplied 5V DC power.
• If there is no problem in the capacity of the power
for the PLC and the supplied 5V DC power, contact
an office of MITSUBISHI ELECTRIC SYSTEM &
SERVICE, CO., LTD.
Lit
• Confirm the operation setting switch setting, reset
power.
Flickering
• Confirm connection to the power adapter and the
power supplied to the power adapter. (For the
details of power adapter, refer to the User's Manual
(Detailed Volume) of the power adapter.)
• Return the DIP switch setting to the status at the
time of power ON.
Extinguished
• Confirm connection to the power adapter and the
power supplied to the power adapter. (For the
details of power adapter, refer to the User's Manual
(Detailed Volume) of the power adapter.)
• If the system is not restored even after confirming
the item above, contact an office of MITSUBISHI
ELECTRIC SYSTEM & SERVICE, CO., LTD.
Lit
• Confirm connection to the power adapter and the
power supplied to the power adapter. (For the
details of power adapter, refer to the User's Manual
(Detailed Volume) of the power adapter.)
• If the system is not restored even after confirming
the item above, contact an office of MITSUBISHI
ELECTRIC SYSTEM & SERVICE, CO., LTD.
Troubleshooting 12
Series PLC,
1N
12-4
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