HANGCHA CBD20-AC1S - Diagnosis and Troubleshooting

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3.2.2 Diagnosis and troubleshooting
Diagnosis procedure
Truck cannot travel
Check if the controller
LED light flashes
Light is off
Flash
If normally flashes
Switch in encoder
Normal flashing way
Fault flashing way
If battery has electricity If motor is normal
Use
encoder
to check
fault
reason
Refer to
instructi
ons to
check
the
correspo
nding
fault
code of
LED
flash.
Check if
input
signal
normal(us
able
encoder)
Check if
the output
signal
from
controller
to motor is
normal (if
two
terminals
output
after
accelerato
r input)
If
contactor
absorbs
normally
If other
external
facility
is
normal
Display No display
Check if the input
end signal of the
key switch is
normal.
Normal Abnormal
Eliminate
key switch
fault
Input
normal,
external
facility
normal,
output
abnormal
Relevant
part fault
Controller
fault
Controller
fault
Controller
fault
Eliminate
fault