6.1 Inspection
Unified Controller nv series PROFIBUS(PA912) Module Instruction Manual
81
6.1 Inspection
6.1.1 Daily inspection
For daily inspection, check the following.
CAUTION
When there is any smoke or strange odor, turn
off the power.
Otherwise, it may cause a fire or electric shock.
Mandatory
Remark
•
To keep the system normal and avoid unnecessary troubles, perform daily inspections,
periodical inspections, and cleaning.
Front panel
<LED>
Check if each of the LEDs is visible. If not, clean it with a soft cloth.
Be careful not to change the switch settings. Check the LED state from the
front side.
<PROFIBUS connector>
Check the following:
• The cable is connected correctly.
• Cable connection is normal.
• Cable connection is not loose or has an abnormal appearance.
If any abnormality is found, follow the procedure in “chapter 5
Troubleshooting.”
Ventilation hole
Check the front panel and upper ventilation hole of the product for dust or
stain. If the ventilation hole is blocked by dust or stain, remove the dust with
a vacuum cleaner, and then wipe it with a soft cloth.
Indoor environment
Check if the temperature and humidity of the location where the product is
located are within the product specification range (Table A-1 in Appendix A).
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