LVS module handling process
2021-10-19 11:11:34 3 举报
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LVS
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replace BMS-M
<24v
disconnect all connectors inside and wait further instruction from BYD
OK
reconnect it
other EC except for 103
check EC code
good connection
24~38V
NOK
poor connection
relay able to close
replace BIC
BMU unable to power on
switch off with BMU
>38V
take it as spare part
reconnect orreplace LEDwire
connection between topconnector and BMS-M
good connection
LED wire & connection
around 52v
connection betweentop connector and BMS-M
work well
103
UV & ready to scrap
relay unable to close
make relay close
LVS module
power on again and check EC code
charge it to 45V
unable to switch off
voltage sensor failure
unable to power on
any EC
any other issue
connector damage/metal case damage
Temp. sensor failure
power on
Appearance
charge or discharge it to around 52V
No BMS information
APP/BCP
voltage far from 52V
voltage from B+/B-
commission with inverter
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