Omron NX-SL5500 User Manual

13-1
Cleaning and Inspection
This section describes daily maintenance and the cleaning and inspection methods.
13-1-1
Cleaning
Clean the Safety Control Unit regularly as described below in order to keep it in optimal operating con-
dition.
• Wipe the equipment over with a soft, dry cloth when performing daily cleaning.
• If dirt remains even after wiping with a soft, dry cloth, wipe with a cloth that has been wet with a
sufficiently diluted detergent (2%) and wrung dry.
• A smudge may remain on the Units 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 connectors.
13-1-2
Periodic Inspections
Although the major components in Safety Control Unit have an extremely long life time, they can dete-
riorate 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.
• Make sure that the Units are used within the ranges of specifications.
• Make sure that the Units are mounted and wired correctly.
• To maintain the operating reliability of the safety functions at a consistent level, diagnose the safety
functions.
• Use the error log to check whether non-fatal errors have occurred.
Periodic Inspection Items
No.
Inspec-
tion item
Inspection details Criteria Correction
1 External
power
supply
Is the power supply voltage
measured at the terminal
block within standards?
Within the power sup-
ply voltage range
Use a voltage tester to check the
power supply at the terminals. T
ake
necessary steps to bring the power
supply within the power supply volt-
age range.
2
I/O power
supply
Is the power supply voltage
measured at the I/O terminal
block within standards?
Voltages must be with-
in I/O specifications of
each NX Unit.
Use a voltage tester to check the
power voltage at the terminals.
Take necessary steps to bring the
I/O power supply within NX Unit
standards.
13 Inspection and Maintenance
13 - 2
NX-series Safety Control Unit User's Manual (Z930)

Omron NX-SL5500 Specifications

General

Brand	Omron
Model	NX-SL5500
Category	Controller
Language	English