Error Code List - JUKI DDL-8700B-7 Instruction Manual

Error code list

Description of error
No.
detected
E000 Execution of data
initialization (This is
not the error.)
E007 Overload of motor
E071 Disconnection of mo-
tor output connector
E072 Overload of motor
at the time of thread
trimming motion
E079 Continuous opera-
tion with the motor
applied with a higher
load
E302 Fall detection switch
failure
(When the safety
switch works)
E303 Semicircular plate
sensor error
E499 Data fault
E704
E730 Encoder failure
E731 Motor hole sensor
failure
E733 Inverse rotation of
motor
E799 Thread trimming
operation time-out
E808 Solenoid short circuit • Solenoid power does not become normal
E809 Holding motion
failure
E810 Solenoid current
abnormality
E811 Overvoltage
Cause of occurrence expected
• When the machine head is changed.
• When the initialization operation is exe-
cuted.
• When the machine head is locked.
• When sewing extra-heavy material
beyond the guarantee of the machine
head.
• When the motor does not run.
• Motor or driver is broken.
• Disconnection of motor connector.
• Same as E007.
• The machine has been operated with the
motor applied with a load which is higher
than the normal load.
• When fall detection switch is input in the
state that the power is turned ON.
• Semicircular plate sensor signal cannot
be detected.
• The stored data have broken.
• When the motor signal is not properly
inputted.
• This error occurs when the motor is run-
ning at 500 sti/min or more in the oppo-
site direction of that of rotation indication
during motor is running.
• The thread trimmer control operation is
not completed within the predetermined
time period.
voltage.
• Solenoid is not changed over to holding
motion.
• Solenoid rare short-circuit.
• When voltage higher than guaranteed
one is inputted.
• 220V is applied to 120V box.
• CE : 400V is applied to 230V box.
– 47 –
Items to be checked
• Check whether the thread has been entan-
gled in the motor pulley.
• Check the motor output connector (4P) for
loose connection and disconnection.
• Check whether there is any holdup when
turning the motor by hand.
• Check the motor output connector for loose
connection and disconnection.
• Same as E007.
• Check whether the thread has been entan-
gled in the motor pulley.
• Check whether there is any holdup when
turning the motor by hand.
• Check whether the machine head is tilted
without turning OFF the power switch
(sewing machine operation is prohibited for
safety sake).
• Check whether the motor encoder connec-
tor is disconnected.
• Check the motor signal connector (CN30)
for loose connection and disconnection.
• Check whether the motor signal cord has
broken since the cord is caught in the ma-
chine head.
• Check whether the inserting direction of the
motor encoder connector is wrong.
• Connection of the encoder of main shaft
motor is wrong.
• Connection for the electric power of main
shaft motor is wrong.
• Check whether the machine head cord is
caught in the pulley cover or the like.
• Check whether the solenoid is abnormally
heated. (CTL circuit board asm. circuit is
broken.)
• Solenoid resistance.
• Check whether the applied power voltage is
higher than the rated voltage + (plus) 10%
or more.
• The power PCB may have broken.