Omron PROFINET NX-PNC202, User Manual

Page: 228 / 282

12 Troubleshooting
12 - 4
NX-series PROFINET Coupler Unit User’s Manual (W623)
RUN/ERR COMM/BF
Cause Corrective action
Green Red Green Red
Not Lit Not Lit Not Lit Not Lit • No power is supplied by the
Unit power supply.
• Restarting is in progress for the
Unit.
• Waiting for initialization to start.
Check the following items and make
sure that power is correctly supplied
from the Unit power supply.
Checks Related to the Power Sup-
ply
• 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 initializ-
ing.
Check the UNIT PWR indicator for
additional information.
Flashes
at 0.5-s
inter-
vals.
Flashes
at 0.5-s
inter-
vals.
Flashes
at 0.5-s
inter-
vals.
Flashes
at 0.5-s
inter-
vals.
Device identification when DCP
Set/Flush is received.
--- (This is the normal status. Wait
until processing is completed.)
Lit --- Lit --- Normal operation and online com-
munication connection is estab-
lished.
--- (This is the normal status.)
--- Lit --- --- • Bus Controller Error
• Non-volatile Memory Hardware
Error
• Memory Corruption Detected
Cycle power to the IO Device Unit.
If cycling the power does not clear
the error, replace the IO Device
Unit.
--- Flashes
at 0.5-s
inter-
vals.
--- --- • Unit Configuration Verification
Error
• Non-volatile Memory Control
Parameter Error
• Unit Configuration Error
• Unit Configuration Error, Too
Many Units
• Unit Configuration Error,
Unsupported Configuration
• NX Unit Communications Time-
out
• NX Unit Initialization Error
• NX Unit Startup Error
Refer to
12-3-4 Event Codes for
Errors and Troubleshooting Proce-
dures
on page 12-11 for trouble-
shooting information.
Lit --- --- Lit Waiting for a PROFINET IO Con-
troller to connect.
Lit --- --- Flashes
at 1.0-s
inter-
vals.
The communication coupler has
rejected the last connection
attempt of a PROFINET IO Con-
troller.
Check the following items.
• Profinet IO Controller configura-
tion