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12 Troubleshooting
12 - 6
NX-series PROFINET Coupler Unit User’s Manual (W623)
Troubleshooting the Primary Errors That Are Displayed with the UNIT PWR
Indicators
The UNIT PWR indicator shows the status of the Unit power supply.
---
Flashes at
1.0-s inter-
vals.
NX Unit Communica-
tions Timeout
Check the following items.
• Make sure that the NX Unit is mounted correctly.
If the error occurs again even after you make the above cor-
rection, replace the NX Unit.
NX Unit Initialization
Error
Connect the Sysmac Studio, and then set and save the Unit
configuration information in the PROFINET Coupler Unit
again. If this error occurs again, check that there are no
errors in the NX Unit settings and IO data mapping informa-
tion, and correct any errors that are found.
For an Analog IO Unit, set the Channel Enable/Disable Set-
ting to Enable for at least one channel.
If the error occurs again even after you check the items
above, cycle the power supply to the NX Unit in question. If
this error persists, replace the NX Unit.
Not Lit
Not Lit
No power is supplied
by the Unit power sup-
ply.
Check the following items and make sure that power is cor-
rectly 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.
• Wait for the Unit to finish initializing.
Check the RUN/ERR and COMM/BF indicators for addi-
tional information.
Check the UNIT PWR indicator for additional information.
UNIT
PWR
Cause
Corrective action
Green
Lit
---
--- (This is the normal status.)
Not Lit No power is supplied by the Unit power
supply.
Check the following items and make sure that power is cor-
rectly 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.
TS
Cause
Corrective action
Green
Red
Summary of Contents for PROFINET NX-PNC202
Page 9: ...7 NX series PROFINET Coupler Unit User s Manual W623 CONTENTS...
Page 12: ...Manual Structure 10 NX series PROFINET Coupler Unit User s Manual W623...
Page 32: ...Revision History 30 NX series PROFINET Coupler Unit User s Manual W623...
Page 34: ...Sections in this Manual 32 NX series PROFINET Coupler Unit User s Manual W623...
Page 126: ...6 Installation 6 32 NX series PROFINET Coupler Unit User s Manual W623...
Page 192: ...10 I O Refreshing 10 6 NX series PROFINET Coupler Unit User s Manual W623...
Page 224: ...11 PROFINET Coupler Unit Functions 11 32 NX series PROFINET Coupler Unit User s Manual W623...
Page 260: ...12 Troubleshooting 12 36 NX series PROFINET Coupler Unit User s Manual W623...
Page 268: ...13 Maintenance and Inspection 13 8 NX series PROFINET Coupler Unit User s Manual W623...
Page 274: ...Appendices A 6 NX series PROFINET Coupler Unit User s Manual W623...
Page 275: ...I 1 I I NX series PROFINET Coupler Unit User s Manual W623 Index...
Page 280: ...I 6 NX series PROFINET Coupler Unit User s Manual W623 Index...
Page 281: ......