Troubles Specific To Each Type Of Nx Units; Additional Nx Unit Power Supply Unit - Omron NX Series User Manual

5 Troubleshooting
5-5 Troubles Specific To Each Type of NX
Units
5-5-1

Additional NX Unit Power Supply Unit

Problem
The UNIT PWR indicator
is not lit.
Even though the UNIT
PWR indicator is lit, the
indicators of NX Units on
the right are not lit.
5 - 12
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Assumed cause
The Unit power is not sup-
plied.
The Unit power supply volt-
age is outside the specified
range.
Wiring with the Unit power
supply is incorrect.
Wiring with the Unit power
supply is disconnected.
The terminal block is loose.
The Unit power supply is
defective.
The NX Unit power consump-
tion exceeds the power sup-
ply capacity of the Additional
NX Unit Power Supply Unit.
Either this NX Unit or the NX
Unit on the right is not
installed correctly.
Correction
Check that the Unit power is supplied.
Set the Unit power supply voltage within the speci-
fied range.
Check the wiring with the Unit power supply.
Check the wiring with the Unit power supply.
Check the installation of the terminal block.
Replace the Unit power supply.
Add an Additional NX Unit Power Supply Unit.
Check the NX Units are installed correctly.
NX-series System Unit User's Manual (W523)