Faults
Diagnosis and solution
BI_GenVolLow
BI_GenFreHigh
Generator Voltage High Detected
BI_GenFreLow
Generator Frequency High Detected
BI_Fan1StopRotor Fan 1 Stop Detected
Generator Frequency Low Detected
Troubleshooting
116
BI_Fan2StopRotor
Fan 2 Stop Detected
13 Maintenance
Maintenance of battery
Maintenance of inverter
Regular maintenance is required for the inverter.
The table below lists the operational maintenance for expressing the optimum
device performance. More frequent maintenance service is needed in the worse
work environment.
Please make records of the maintenance.
Check that if the input and output wires are
damaged or aged.
Check if the indicators and button of the inverter
are in normal state
Check Note
Item
Indicators /
button
Wires
By operating the switch a few times (5x), the
contacts will clean themselves and the switch will
have a longer life.
DC switch
Check the installation for signs of overload,
overheating, and that the terminals do not exceed
the limit of 167℉/75°C under full load.
Maintenance Interval
Every 6 months
Every 6 months
/
/
Signs
Ÿ If the ambient temperature for storage is -4°F~86°F/-20°C~30°C, recharge
the batteries at least once every 12 months.
Ÿ If the ambient temperature for storage is 86°F~122°F/30°C~50°C, recharge the
batteries at least once every 6 months.
Ÿ If the battery(ies) has(have) not been used for more than 9 months, the
battery(ies) must be charged to at least SOC 50 % each time.
Ÿ For the first installation, the interval among manufacture dates of batteries shall
not exceed 3 months.
Ÿ If one of the batteries is replaced, the SOC of the battery after replacement
shall be consistent with those of batteries that have not been replaced, with the
maximum difference of between -5% and 5%.
Ÿ If users want to increase their battery system capacity, please ensure that the
SOC of the existing system capacity is about 40%. The manufacture date of
the new battery shall not exceed 6 months; in case of exceeding 6 months,
please charge the new battery to around 40%.
Maintenance
117
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