comprehensively.
The AC controller also has temperature monitoring and protection
functions to effectively prevent the motor from high temperature and
avoid damaging the motor.
1. Regular maintenance
a. Check whether the contact between contactor contacts is good, whether
there is adhesion or open circuit, whether there are sundries and ablation
between contacts, and whether the moving contact is mechanically stuck.
b. Check whether the micro
switch in the accelerator has good on-of
f
performance.
c. Check whether the on-off performance of the direction switch is good.
(CVT vehicle).
d. Check whether the connection between the motor, battery pack and
controller unit is good. Note: Check in case of power failure.
e. Check and keep the electric control, motor and battery pack clean.
The above checks shall be conducted at least once every three months.
After turning off the power, the
filte
r
ca
pacitor in the controller un
it s
h
o
u
ld be
kept discharging for several minutes. Do not flush the electrical components
with water! Clean brush or high-pressure gas can be used to remove dust.
2. Fault characteristics and possible causes:
The vehicle cannot
start
(I) The controller has no power supply
(II) The signal is not transmitted to the controller
(III) The contactor contact is bonded.
(IV) The motor or controller is damaged.
(V) The phase sequence of the motor encoder is wrong or
damaged
(VI) The motor or controller is in temperature protection
state
(VII) The electromagnetic brake is locked
moves forward and
cannot move backward
or only moves
backward and cannot
(I) The direction switch is damaged or the line is
disconnected (CVT vehicle)
(II) The insert on reverse contactor is loose (CVT vehicle)
(III) The reverse contactor is damaged (CVT vehicle)
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General