Doohan iTango Service Manual page 30

Under voltage protection
Locked-rotor protection
Accelerator handle
The handle bar is not return
when power on.
Charging overheat protection
Protection of Charging
temperature too low
Discharge overheat protection
Protection of discharge
temperature too low protection.
Loose connection protection
Power supply
Battery high voltage protection
system
MOSFET overheat
Over voltage protection of
battery cells
Battery Pack Low Voltage
Protection
Low voltage protection of
battery cells
Charge over current protection
Discharge over current
protection
② Motor Hall is defects, replace or repair the motor
Battery voltage is too low, charge the battery.
Overload or the motor is burnout, to repair or
replace the motor
To check whether the accelerator cable box is
damaged, and replace it
To check whether it is return of the accelerator cable
box, and repair.
The battery temperature is higher than 50 ℃, charge
is not available; to normal charge after remove the
battery to indoor and battery temperature is below to
45 ℃.
The battery temperature is below 0 ℃, charge is not
available. To normal charge after remove the battery
into indoor and battery temperature is higher than
3 ℃.
The battery temperature is higher than 65 ℃, it is
not available for discharging , when the battery
temperature is below 60 ℃, it is available for normal
discharging.
The battery temperature is below -20 ℃, it is not
available for discharging,
temperature higher than -10 ℃, it is available for
normal discharging.
Re-plug the battery plug, if not normal, repair or
replace
The total voltage of the battery is too high, the
charging voltage is too high, check the charger, to
repair or replace
①MOSFET temperature is higher than 115 ℃, need
to disconnect the battery plug in order to down the
MOSFET temperature battery to below 80 ℃
② Check whether VCU or anti-theft power supply is
normal, repair or replace
The battery's single-cell voltage is too high, check
the battery and charger, repair or replacement
The total voltage of the battery is too low, battery
charging or repair and replace it
The battery's single-cell voltage is too low, battery
charging or repair and replace it
The battery charge current ≥ 26A, Check whether
the charger is burnout, repair or replace.
The battery discharge current ≥ 75A, Check whether
the controller is burnout, repair or replace
when the battery