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9 - 3
9 Troubleshooting
NX-series Digital I/O Unit User’s Manual (W521)
9-2
Checki
ng f
o
r Errors with
the
Indi
cato
rs
9
9-2
Checking for Errors with the Indicators
You can use the TS indicators on the NX Units to check the NX Unit status and level of 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
(This is the normal status.)
FS (2 s)
Not Lit
• Initializing
• Downloading
(Normal. Wait until the processing is com-
pleted.)
Lit
Lit
This status is not present.
Not Lit
Not Lit
The Unit power supply is not sup-
plied.
Check the following items and supply the Unit
power supply correctly.
[Check items for power supply]
• Make sure that the power supply cable is
wired correctly.
• Make sure that the power supply cable is not
disconnected.
• Make sure that power supply voltage is within
the specified range.
• Make sure that the power supply has enough
capacity.
• Make sure that power supply has not failed.
• Waiting for initialization to start
• Restarting
- (Normal. Wait until the processing is com-
pleted.)
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. If this happens,
replace the Unit.
Not Lit
Lit
Hardware failure
If this error occurs after you cycle the Slave Ter-
minal power supply, replace the Unit.
Not Lit
Lit
Non-volatile Memory Hardware
Error
Refer to Event
Not Lit
Lit
Control Parameter Error in Mas-
ter
Refer to Event
Control Parameter Error in Mas-
Not Lit
FS (1 s)
NX Unit I/O Communications
Error
Refer to Event
Содержание NX-IA3117
Страница 34: ...Sections in this Manual 32 NX series Digital I O Unit User s Manual W521...
Страница 52: ...1 Features and System Configuration 1 18 NX series Digital I O Unit User s Manual W521...
Страница 56: ...2 Specifications 2 4 NX series Digital I O Unit User s Manual W521...
Страница 152: ...5 I O Refreshing 5 36 NX series Digital I O Unit User s Manual W521...
Страница 204: ...8 Digital Mixed I O Units 8 8 NX series Digital I O Unit User s Manual W521...
Страница 224: ...9 Troubleshooting 9 20 NX series Digital I O Unit User s Manual W521...
Страница 230: ...10 Inspection and Maintenance 10 6 NX series Digital I O Unit User s Manual W521...
Страница 290: ...Appendices A 60 NX series Digital I O Unit User s Manual W521 Installation Height 100 71 Unit mm...
Страница 337: ...I 1 I NX series Digital I O Unit User s Manual W521 Index...
Страница 340: ...I 4 NX series Digital I O Unit User s Manual W521 Index...