10 - 3
10 Troubleshooting
NX-series Position Interface Units User’s Manual (W524)
10-2 Checking for Errors with
the Indicators
10
10-2 Checking for Errors with the Indica-
tors
You can use the TS indicators on the NX Units to check the NX Unit status and errors.
This section describes the meanings of errors that the TS indicator shows and the troubleshooting pro-
cedures for them.
In this section, the status of the indicator is indicated with the following abbreviations.
Abbreviation Indicator status
Lit Lit.
Not Lit Not lit.
FS ( ) Flashing. The numeric value in parentheses is the flashing interval.
--- Undefined
Main Errors and Corrections
TS Indicator
Cause Correction
Green Red
Lit Not Lit --- Status is normal.
FS (2 s) Not Lit • Initializing
• Restarting is in progress for the Unit.
• Downloading
Status is normal. Wait until processing is
completed.
FS (0.5 s) Not Lit A backup, restore, or compare operation is
in progress from the Sysmac Studio or SD
Memory Card.
Status is normal. Wait until processing is
completed.
Lit Lit --- This status does not exist.
Not Lit Not Lit Power is currently not supplied from the
Unit power supply.
Check the following items and make sure
that power is correctly supplied from the
Unit power supply.
Checks Related to the Power Supply
• Make sure that the power supply cable
is wired properly.
• Make sure that there are no breaks in
the power supply cable.
• Make sure that the power supply voltage
is within the specified range.
• Make sure that the power supply has
enough capacity.
• Make sure that the power supply has not
failed.
If you cannot resolve the problem after you
check the above items and cycle the Slave
Terminal power supply, the Unit may have
a hardware failure. In that case, replace
the Unit.
• Waiting for initialization to start
• Restarting is in progress for the Slave
Terminal.
Status is normal. Wait until processing is
completed.
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