5-45
5 Troubleshooting
NJ-series CPU Unit Hardware User’s Manual (W500)
5-2 Troubleshooting
5
5-2-4 Error Descriptions
* This event code occurs for unit version 1.02 or later of the CPU Unit.
Event name SD Memory Card Access Power OFF Error Event code 10070000 hex
Meaning The power supply to the Controller was interrupted during access to the SD Memory Card.
Source PLC Function Module Source details None Detection
timing
At power ON or
Controller reset
Error attributes Level Observation Recovery --- Log category System
Effects User program Continues. Operation Operation is controlled by the user program when the file
is corrupted.
System-defined
variables
Variable Data type Name
_Card1PowerFail BOOL SD Memory Card Power Interruption
Flag
Cause and
correction
Assumed cause Correction Prevention
The Controller power supply was
turned OFF while the SD BUSY indi-
cator was lit.
Check that the correct file is on the
SD Memory Card, or that the device
operates correctly.
If the correct file is not on the SD
Memory Card, or if the device does
not operate correctly, download the
correct file to the SD Memory Card.
Cycle the power supply to the Con-
troller or reset the Controller and con-
firm that the system operates
correctly. When you have finished the
corrections, change the _Card1Pow-
erFail (SD Memory Card Power Inter-
ruption Flag) system-defined variable
to FALSE.
Do not turn OFF the power supply
while the SD BUSY indicator is lit.
The power supply to the Controller
was interrupted momentarily while the
SD BUSY indicator was lit.
Take appropriate measures to ensure
that the specified power with the rated
voltage and frequency is supplied in
places where the power supply is
unstable.
Attached
information
None
Precautions/
Remarks
When the measure is completed, change the SD Memory Card Access Power Interruption Flag to FALSE.
Event name Incorrect SD Memory Card Removal Event code
10310000 hex*
Meaning SD Memory Card removal processing failed.
Source PLC Function Module Source details None Detection
timing
At SD Memory
Card removal
Error attributes Level Observation Recovery --- Log category System
Effects User program Continues. Operation Not affected.
System-defined
variables
Variable Data type Name
None --- ---
Cause and
correction
Assumed cause Correction Prevention
The SD Memory Card was removed
while the SD PWR indicator was lit.
Check the files on the SD Memory
Card to see if they are correct. If the
files on the SD Memory Card are not
correct, download the correct files to
the SD Memory Card.
Press the SD Memory Card power
supply switch and confirm that the SD
PWR indicator goes out before you
remove the SD Memory Card.
Attached
information
None
Precautions/
Remarks
None
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