Periodic Inspection - Mitsubishi Electric GOT2000 Series User Manual

9.2

Periodic Inspection

■1. Half-yearly or yearly inspection items
Inspect the following items when moving or modifying equipment, or changing wiring.
Item Inspection item
Surrounding
1
environment
GOT with
100 V AC -
240 V AC
power
2
GOT with 24
V DC power
Installation
3
status
Connection
4
status
5 Battery
9 - 4

9.2 Periodic Inspection

Inspection method
Ambient
temperature
Measure corrosive gas with
a thermometer or
Ambient
hygrometer.
humidity
Atmosphere
Measure voltage across the
Power supply
100 V AC terminal to the
voltage check
240 V AC terminal.
Input polarity
Measure voltage across 24
of 24 V DC
V DC terminals.
power
Looseness Move the unit.
Foreign
material Visual check
adherence
Loose
Retighten screws with a
terminal
screwdriver.
screws
Proximity of
solderless Visual check
terminals
Loose
Visual check
contactors
Check the voltage status of
the GOT built-in battery in
[Time] of the utility.
➠
GOT2000 Series User's
Manual (Utility)
Criterion
Display
0 °C to 40 °C
section
Other sections 0 °C to 55 °C
10 % RH to 90% RH
No corrosive gas
85 V AC to 242 V AC
Left: -
Right: +
Mounted firmly
No foreign matter adherence
Not loose
Proper intervals
Not loose
No alarm
Corrective action
For use in a control panel,
the control panel inside
temperature is the ambient
temperature.
Change the power supply.
Change wiring.
Retighten screws.
Remove and clean the
foreign material.
Retighten terminal screws.
Correct intervals.
Retighten contactor fixing
screws.
Replace the battery with a
new battery when the
current battery has
reached the specified life
span, even if the low
voltage is not indicated.