8
TROUBLESHOOTING
8.2 Troubleshooting
8.2.1 When the "RUN" LED is flashing or turned off
8
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1
OV
E
R
VI
EW
2
SYSTE
M
CO
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F
IG
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A
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3
S
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CI
F
ICA
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4
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5
UT
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ACK
AGE
(G
X CO
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6
PROGRAMMING
7
ON
LI
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O
D
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LE
CHANGE
8
TRO
UBLE
SHO
OTI
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8.2
Troubleshooting
8.2.1
When the "RUN" LED is flashing or turned off
(1) When flashing
(2) When off
8.2.2
When the "ERR." LED is on or flashing
(1) When turning on
(2) When flashing
8.2.3
When the "ALM" LED is turned on
Check item
Corrective action
Is the mode set to the offset/gain setting mode?
Reset switch 4 of the intelligent function module switch setting for GX
Developer to the normal mode (Refer to Section 4.5).
Check item
Corrective action
Is power being supplied?
Confirm that the supply voltage for the power supply module is within
the rated range.
Is the capacity of the power supply module adequate?
Calculate the current consumption of the CPU module, I/O module
and intelligent function module mounted on the base unit to see if the
power supply capacity is adequate.
Has a watchdog timer error occurred?
Reset the programmable controller CPU and verify that it is lit. If the
RUN LED does not light even after doing this, the module may be
malfunctioning. Please consult your local Mitsubishi representative.
Is the module correctly mounted on the base unit?
Check the mounting condition of the module.
Is a module change enabled during an online module change?
Refer to Chapter 7 and take corrective action.
Check item
Corrective action
Is an error being generated?
Confirm the error code and take corrective action described in Sec-
tion 8.1.
Check item
Corrective action
Is intelligent function module setting switch 5 set to "other than 0"?
Using GX Developer parameter setting, set intelligent function mod-
ule setting switch 5 to "0" (Refer to Section 4.5).
Check item
Corrective action
Has the warning output occurred?
Check Warning output flag (Un\G48).
Содержание Q66DA-G
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