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terminals is strip-off.
Air inlet/outlet
Check if the air inlet filter and ventilation ducts
of the container and internal devices are
normal;
Clean or replace the filter.
Every six months or
maintain according to
real situation
Fan
Check the running state of the fan inside the
container;
Check if there is crack in the fan blade ;
Check if there is abnormal noise during the
running of the fan.
Every six months or
maintain according to
real situation
Device
maintenance
Routine check the corrosion of the metal
components (once six months);
Annually check the contactors (auxiliary
switches and micro-switches) to ensure the
optimal operation;
Check the running parameters (esp., voltage and
insulation).
From every six months
to annually
Safety function
Check the emergency stop button and the LCD
stop function;
Simulation shutdown;
Check the warning labels and other markings
for damage or unclearness. Replace them if
necessary.
From every six months
to annually
Software
maintenance
Optimize software;
Check each parameter setting.
From every six months
to annually
LCD
time
display
Check if the time displayed on the LCD display
is correct;
Replace the button cells on the back of the LCD
panel if time is incorrect after calibration.
From every six months
to annually
Firefighting
device
Check the functionality of the firefighting devices.
Follow
related
regulation where the
project is located
Other devices
Replace the damaged lighting devices in time.
When necessary
NOTE:
The frequency of maintenance operations could be increased according to the
environmental conditions of the place where the inverter is suited, plant capacity
and on-site situations.
The maintenance interval should be shortened if the sand or dust deposition around
the operation site is serious.
