−64 −
(1) Error code list
No.
E000
E003
E004
E005
E007
E008
E302
E730
E731
E811
E813
E906
E924
Description of error detected
Execution of data initialization
(This is not the error.)
Disconnection of synchronizer
connector
Synchronizer lower position
sensor failure
Synchronizer upper position
sensor failure
Overload of motor
Machine head connector
failure(Resistance pack)
Tilt detection
(MF : thread trimmer knife
sensor)
(At the time of safety switch
operation)
Encoder failure
Motor hole sensor failure
Overvoltage
Low voltage
Operation panel transmission
failure
Motor driver failure
Cause of occurrence expected
• When the machine head is changed.
• When the initialization operation is executed
• When position detection signal is not input
from the sewing machine head synchronizer.
• When the synchronizer has broken.
• 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.
• When the machine head connector is not
properly read.
• When tilt detection switch is inputted with
the power ON.
• Position of thread trimmer knife is improper.
• When the motor signal is not properly
inputted.
• When voltage higher than guaranteed one
is inputted.
• When 220V has been inputted at 110V
setting.
• 400V is applied to the box of 220V (230V).
• When voltage lower than guaranteed one
is inputted.
• When 110V has been inputted at 220V setting.
• 110V is applied to the box of 220V.
• Inner circuit is broken by the applied
overvoltage
• Disconnection of operation panel cord
• Operation panel has broken.
• Motor driver has broken.
Items to be checked
• Check the synchronizer connector (CN33,CN43)
for loose connection and disconnection.
• Check whether the synchronizer cord has broken
since the cord is caught in the machine head.
• Check whether the thread has been entangled 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 machine head connector (CN32) for
loose connection and disconnection.
• Check whether machine head is tilted without
turning OFF the power switch (operation of sewing
machine is prohibited for safety).
• Check whether tilt detection switch cord is caught
in the machine.
• Check whether tilt detection switch lever is caught
in the machine.
•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 machine head.
• Check whether the applied power voltage is higher
than the rated voltage + (plus) 10% or more.
•Check whether 110V/220V changeover switch is
improperly set.
• In the aforementioned cases, POWER p.c.b is
broken.
• Check whether the voltage is lower than the rated
voltage – (minus) 10% or less.
• Check whether 110V/220V changeover switch is
improperly set.
• Check whether fuse or regenerative resistance is
broken.
• Check the operation panel connector (CN38) for
loose connection and disconnection.
• Check whether the operation panel cord has
broken since the cord is caught in the machine head.
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