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Limit protection
EEPROM failure
ISO
EEPROM
Insulation level 2
failure
8 Maintenance and upgrade
Warning!
Improper decommissioning may cause damage to the equipment and/or
battery inverter.
Before maintenance, ensure that BOS-G is decommissioned according to relevant provisions.
Note: All maintenance work shall comply with local applicable regulations and standards.
The USB disk port of BOS-G has the functions of upgrading firmware and recording battery
data, which can be used as an auxiliary tool.
8.1 Maintenance of BOS-G
To ensure safe operation, all plug connections must be checked. If necessary, relevant operators
shall press them back into place at least once a year.
The following inspection or maintenance must be carried out once a year:
• General visual inspection
• Check all tightened electrical connections. Check the tightening torque according to the values
in the following table. Loose connections must be retightened to the specified torque.
Connection mode
High-voltage control box grounding
Fixing the lug of the high-voltage control box
Fixing the lug of the battery module
Limit protection
EEPROM storage failure
Insulation level 2
Tightening torque
4.5Nm
1.2Nm
1.2Nm
94
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