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Malfunction
Malfunction
Item
Detail Indication
Indication
Indication
pattern when
pattern at
speed switch is
time of mal-
pushed up or
function
down
[Right Driver Related]
9
[Left Driver Related]
88
Beeping
Meaning of
Replacement ( :Most Suspect, :Next Suspect)
Pattern
Display
Au-
As-
tono-
sis-
mous
tant
Beeps
Arm
for 2.5
shorted
seconds
Beeps
12V power
for 2.5
fluctuation
seconds
Beeps
Vehicle
for 2.5
overvolt-
seconds
age
Accelera-
Beeps
tion com-
for 2.5
mand
seconds
over
Beeps
Power
for 2.5
line open
seconds
circuit
Beeps
Speed
for 2.5
command
seconds
over
Beeps
5V power
for 2.5
fluctuation
seconds
(DRV)
Setting
Beeps
switch
for 2.5
malfunc-
seconds
tion
Beeps
CAN bus-
for 2.5
off (DRV)
seconds
Beeps
CAN timed
for 2.5
out
seconds
(DRV)
Beeps
Start fail-
for 2.5
ure (DRV)
seconds
Beeps
Brake mal-
for 2.5
function
seconds
Right Unit
Left Unit
Failure Judgment Condition
CNT
:Controller board
DRV
:Driver board
ENC
:Encoder
EMB
:Electromagnetic brake
Harness
:Wire harness between
relay board and each unit
The current of the motor drive circuit
has exceeded the specified value.
The 12V control power malfunction.
The voltage of the power line has
exceeded the specified value.
(This may occur when the battery is
disconnected while the wheelchair
is descending a steep slope.)
The voltage is not the specified
value.
The power for the microprocessor is
not the specified value.
The setting switch on the driver
board is malfunctioning.
No "standby" signal is returned from
the controller.
The motor has moved when it
should be stopped.
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