Omron NX Series User Manual page 112

5 Troubleshooting
Additional NX Unit Power Supply Unit
UNIT PWR indica-
tor
Green
Lit
Not Lit
Additional I/O Power Supply Unit
I/O PWR indicator
Green
Lit
Not Lit
5 - 4
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Cause
The Unit power supply is sup-
plied.
The Unit power supply is not sup-
plied.
Cause
The I/O power supply is supplied. - (This is the normal status.)
The I/O power supply is not sup-
plied.
Correction
- (This is the normal status.)
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.
Correction
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.
NX-series System Unit User's Manual (W523)