87
Table 4-5 Fault code and troubleshooting of 1236/1238 series controllers
External short of phase U, V or W
motor connections.
Phase current exceeded
the current
measurement limit.
Motor parameters are mis-tuned.
Leakage to vehicle frame from phase
U, V or W (short in motor stator).
Controller current
sensors hove invalid
offset reading.
External load on capacitor bank (B+
connection terminal) that prevents the
capacitor bank from charging.
The voltage of
capacitor is low.
Controller Severe
Undertemp
The temperature of controller is lower
than -40℃.
The temperature of
controller is lower than
-40℃.
Controller Severe
Overtemp
The temperature of controller exceed
95℃.
The temperature of
controller exceed 95℃.
Excessive load on vehicle.
Improper mounting of controller.
The selection of controller’s voltage
parameter is wrong.
Capacitor voltage too
low inside the
controller.
Battery resistance too high.
Battery disconnected while driving.
Battery fuse burn or main contact not
actuation.
The selection of controller’s voltage
parameter is wrong.
Controller’s capacitor
voltage too high.
Battery resistance too high for given
regen current.
Battery disconnected while regen
braking.
Controller Overtemp
Cutback
Controller is operating in an extreme
environment.
The temperature of
controller exceed 85℃.
Excessive load on vehicle.
Improper mounting of controller.
The batteries need recharging.
Controller’s capacitor
voltage low.
The selection of controller’s voltage
parameter is wrong.
External oversize load lead to reduce
the battery voltage.
Battery resistance too high.
Main contact get out of, fuse burn.
Battery voltage too high while regen
braking.
Capacitor bank voltage
exceeded the set value.
The selection of controller’s voltage
parameter is wrong.
Battery resistance too high.
To Next Page
Loading...
Need help?
General
