Maintenance; Cleaning; Inspection - Omron DeviceNet DST1 Series Operation Manual

Message
Total On Time or Contact Operation
Counter Exceeded Threshold
Operation Time Exceeded Threshold
Unit Conduction Time Exceeded
Threshold
Network PS Voltage Fell Below
Threshold
Output PS Voltage Low
Input PS Voltage Low
6-4

Maintenance

This section describes the routine c leaning and inspection recommended as regular
maintenance. Handling methods when replacing the DST1-series Safety I/O Terminals
are also explained here.
6-4-1

Cleaning

Clean the DST1-series Safety I/O Terminals regularly as described below to keep the
network in optimal operating condition.
• Wipe the DST1-series Safety I/O Terminals with a dry, soft cloth for regular cleaning.
• When dust or dirt cannot be removed with a dry cloth, dampen the cloth with a
neutral cleanser (2%), wring out the cloth, and wipe the DST1-series Safety I/O
Terminals.
• Smudges may remain on the DST1-series Safety I/O Terminals from gum, vinyl, or
tape that was left on for a long time. Remove these smudges when cleaning.
Note: Never use volatile solvents, such as paint thinner or benzene, or chemical wipes to clean
6-4-2

Inspection

Inspect the system periodically to keep it in optimal operating condition.
In general, inspect the system once every 6 to 12 months, but inspect more frequently if
the system is used in high-temperature, humid, or dusty conditions.
Inspection Equipment
Prepare the following equipment before inspecting the system.
Equipment Required for Regular Inspection
Phillips screwdriver
A flat-blade screwdriver
A screwdriver for connecting communications connectors
A tester (or a digital voltmeter)
Industrial alcohol and a clean cloth
Other Equipment That May Be Required
A synchroscope
An oscilloscope
A thermometer or hygrometer
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Check the following items.
- Are cables broken?
- Is the power voltage within specifications?
the DST1-series Safety I/O Terminals. These substances may damage the surface of the
DST1-series Safety I/O Terminals.
6-4 Maintenance
Countermeasure
6-7