OKAI ES400A - Page 27

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E23
Over current third layer protection
Discharge current > 60A, lasting for 320 milliseconds.
⚫ charge
E24
Over current fourth layer protection
Discharge current > 100A, lasting for 400 microseconds
⚫ charge
E25
Over legal charging temperature
T(cell) > 55℃(5s)
⚫ Recover if temperature lower than 50℃(5s)
E26
Over legal discharging temperature
T(cell) > 70℃(5s)
⚫ Recover if temperature lower than 65℃(5s)
E27
Charging under temperature
T(cell) < 0℃(5s)
⚫ Recover if temperature higher than 5℃(5s)
E28
Discharging under temperature
T(cell) < -15℃(5s)
⚫ Recover if temperature higher than -10℃(5s)
E29
MOSFET over heating
T(MOSFET)＞110℃
⚫ Recover if temperature lower than 80℃(1s)
⚫ If it cannot be recovered, please scrap it
MOSFET damaged
E30
Large temperature difference
MCU temperature too high
⚫ Recover if temperature lower than 60℃(1s)
E31
Pre-discharge error
Lost communication with CAN bus and output current >1A
⚫ Do not connect the power supply and let the load
stand for 3 minutes.
⚫ If it cannot be recovered, please scrap it.
E32
Impact event
Impact detected
⚫ Do not connect the power supply and let the load
stand for 3 minutes.
⚫ If it cannot be eliminated, please scrap it.
OKAI