12 - 7
12 Troubleshooting
NX-series PROFINET Coupler Unit User’s Manual (W623)
12-2 Checking for Errors and T
roubleshooting with the Indicators
12
12-2-1 Checking for Errors and
Troubleshooting with the Indicators on the PRO
FINET
Coupler Unit
Troubleshooting the Primary Errors That Are Displayed with the IO PWR Indi-
cators
The IO PWR indicator shows the status of the IO power supply.
Troubleshooting the Primary Errors That Are Displayed with the L/A P1 and
L/A P2 Indicators
The L/A P1 and L/A P2 indicators show the status of the port activity.
IO
PWR
Cause
Corrective action
Green
Lit
---
--- (This is the normal status.)
Not Lit No power is supplied by the IO power
supply.
Check the following items and make sure that power is cor-
rectly supplied from the IO power supply.
Checks related to the IO 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.
L/A P1
L/A P2
Cause
Corrective action
Green
Lit
A link was established in the physical
layer.
--- (The Coupler Unit is in standby status after the link was
established in the physical layer. Wait until processing is
completed.)
Blink-
ing
Link present and communicating.
--- (This is the normal status.)
Not Lit A link was not established in the physi-
cal layer.
Check the following items, and then restart the IO Device
Terminal based on the specifications of the connected
PROFINET IO Controller.
Items Related to the Communications Cable
• Make sure that the communications cable is wired prop-
erly.
• Make sure that there are no breaks in the communica-
tions cable or loosening in the mating parts.
• Make sure that the cable is of the appropriate length.
• Make sure that the communications cable meets the rec-
ommended specifications.
The host IO Controller is not operating.
Make sure that the operation of the PROFINET IO Control-
ler is correct.
If you cannot resolve the problem after you check the above items and cycle the Unit power supply,
there may be a hardware failure. In that case, replace the PROFINET Coupler Unit.
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: ......