Omron PROFINET NX-PNC202, User Manual

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13 Maintenance and Inspection
13 - 2
NX-series PROFINET Coupler Unit User’s Manual (W623)
13-1 Cleaning and Maintenance
This section describes daily maintenance and the cleaning and inspection methods.
Inspect the PROFINET Coupler Unit daily or periodically in order to keep it in optimal operating condi-
tion.
Clean the PROFINET Coupler Unit regularly as described below in order to keep it in optimal operating
condition.
• Wipe the network over with a soft, dry cloth when doing daily cleaning.
• If dirt remains even after wiping with a soft, dry cloth, wipe over with a cloth that has been wet with a
sufficiently diluted detergent (2%) and wrung dry.
• A smudge may remain on the Unit from gum, vinyl, or tape that was left on for a long time. Remove
the smudge when cleaning.
Precautions for Correct Use
• Never use volatile solvents, such as paint thinner, benzene, or chemical wipes.
• Do not touch the NX bus connector.
Although the major components in PROFINET Coupler Unit have an extremely long life time, they can
deteriorate under improper environmental conditions. Periodic inspections are thus required.
Inspection is recommended at least once every six months to a year, but more frequent inspections will
be necessary in adverse environments.
Take immediate steps to correct the situation if any of the conditions in the following table are not met.
13-1-1 Cleaning
13-1-2 Periodic Inspections
Periodic Inspection Points
No. Item Inspection Criteria Action
1 External
power
supplies
Measure the power supply volt-
age at the terminal blocks, and
make sure that they are within
the criteria voltage.
The voltage must be within
the power supply voltage
range.
Use a voltage tester to check the power
supply at the terminals. Take necessary
steps to bring voltage of the supplied
power to within the power supply voltage
range.
2 IO power
supplies
Measure the power supply volt-
ages at the input and output ter-
minal blocks, and make sure that
they are within the criteria volt-
age.
The voltages must be
within the IO specifications
for each NX Unit.
Use a voltage tester to check the power
supply at the terminals. Take necessary
steps to bring voltage of the IO power
supplies to within the IO specifications of
each Unit.