B-BOX 12.8 installation guidance
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30
SMA SRC
Reason
Solution
F221
External Alarm-
InvalidBatType
1.Reset battery type to "Li" on SRC.
F920(XA01General)
1.All the batteries are failed
to communicate at the
same time;
2.BMU and battery are
failed to
RS485communicate;
1.Inspect whether the RS485 communicate cable
had been connected correctly and reliability
；
2.Inspect DIP switch setting accoring to the DIP
switch setting table in user manuel;
3.Change BMU in cabinet
；
F930(XA11Short)
External Alarm - Short
circuit
1.Power off;
2.Inspect short connection of cable between
P+&P-;
3.If short connection is confirmed,please
reconnect cable correctly;
4.restart battery;
F952
External Alarm -
ExtBMSTimeout
1.Check the CAN communication,should connect
well.
2.Change BMU.
W936(XW01General)
External Warning - General 1.Inspect whether the RS485 communicate cable
had been connected correctly and reliability
；
2.Inspect DIP switch setting accoring to the
Address setting table;
W937(XW02DcHiVolt)
External Warning - Battery
High Voltage
Normal alarm and do not need to deal with;
W938(XW03DcLoVolt)
External Warning - Battery
Low Voltage
Normal alarm and do not need to deal with;
W939(XW04DcHiTmp)
External Warning - Battery
High Temp
Normal alarm and do not need to deal with;
W940(XW05DcLoTmp)
External Warning - Battery
Low Temp
Normal alarm and do not need to deal with;
W941(XW06DcHiTmpC)
External Warning - Battery
High Temp Charge
Normal alarm and do not need to deal with;
W942(XW07DcLoTmpC)
External Warning - Battery
Low Temp Charge
Normal alarm and do not need to deal with;
W943(XW08DcHiCur)
External Warning - Battery
High Current
Normal alarm and do not need to deal with;
W944(XW09DcHiChgCur
)
External Warning - Battery
High Current Charge
Normal alarm and do not need to deal with;
W953
External Warning -
ExtBMSTimeout
1.Check the CAN communication
communication,should connect well.
2.Change BMU.
