Sungrow SG2500HV-30, Системное руководство

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C Ch he ec ckk iitte em m C Ch he ec ckk m me etth ho od d
LCD time display
•
Check whether the time displayed on the LCD is
correct.
•
After calibration, if the time is still incorrect, replace
the button cell on the back of the LCD.
Component maintenance
•
Regularly check whether the metal components are
corroded (once every 6 months).
•
Annually check the contactors (auxiliary switch and
micro switch) to ensure normal operation.
•
Check the running parameters (especially the
voltage and insulation).
Note: * indicates optional.
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.
12.3 Cleaning the Inverter
12.3.1 Introduction
The cleaning of the inverter surrounding areas and the inverter interior is important for
the maintenance of the inverter.
Due to ambient temperature, humidity, dust, and vibration, there may be dust deposition
inside the inverter blocking the air entries and penetrating inside the inverter internal
devices. This may cause damage to the internal devices of the inverter, shorten the
service life, and reduce power yields.
During device normal operation, check and clean the device periodically to make sure
the internal devices are in a comparatively good condition to a certain degree.
12.3.2 Cleaning Interval
The cleaning interval of the inverter depends on the operation conditions of the inverter,
for example, the weather condition and etc. It is necessary to make sure the inverter
exterior and interior areas are clean. If the operation conditions are severe, in desert
area for instance, the cleaning interval shall be shorter. The cleaning of the inverter
inside devices and the air inlet and outlet shall be more frequent.
12.3.3 Cleaning the Internal Dust
Use a vacuum cleaner instead of a broom to clean the dust inside the inverter.
12 Routine Maintenance System Manual