Periodic Inspection - Mitsubishi Electric MELCEC Q Series User Manual

10. MAINTENANCE AND INSPECTION

10.2 Periodic Inspection

Inspection on items shown below should be conducted once or twice every six months to a
year. Conduct the inspection when the equipment is moved or modified, or wiring is
changed.
Item
1
2
3
4
5
Table 10.2 Periodic inspection
Check item
Ambient temperature
Measure with
temperature and humidity
Ambient humidity
gauge.
Measure presence of
Atmosphere
corrosive gasses.
Measure voltage
Line voltage check between 100/200VAC
terminals.
Test by moving the
Loosening, backlash
module.
Adhesion of dirt or
Visual inspection
foreign matters
Loosening of terminal Retighten with a
screw screwdriver.
Proximity of
Visual inspection
solderless terminals
Loosening of
Visual inspection
connector
Confirm M9006 or M9007
is off with a peripheral
Battery
device in the monitoring
mode.
Content of inspection
0 to 55
10 to 90%RH
There is no corrosive
gas present.
85 to 264VAC
Must be installed
solidly.
No adhesion.
No loosening.
There is an
appropriate distance.
No loosening.
(Preventive
maintenance)
10 - 3
Judgement Action
When used in a panel,
temperature inside
the panel is the
ambient temperature.
Change the power
supply.
Retighten the screw.
Remove and clean.
Retighten.
Correct the distance.
Retighten the
connector fixing
screw.
Even when there is no
low-battery display,
replace if specified life
is exceeded.