Error Code List (Sc-910/Sc-910A) - JUKI SC-910 Engineer's Manual

(1) Error code list (SC-910/SC-910A)

No. Description of error detected
E000 Execution of data initialization
(This is not the error.)
E003 Disconnection of synchronizer
connector
E004 Synchronizer lower position sensor
failure
E005 Synchronizer upper position sensor
failure
E007 Overload of motor
E008 Machine head connector failure
(Resistance pack)
E302 Tilt detection switch
(When the safety switch works)
E343 Bobbin thread remaining amount sensor
unit failure
E730 Encoder failure
E731 Motor hole sensor failure
E810 Solenoid short-circuit
E811 Overvoltage
E813 Low voltage
E906 Communication trouble between
operation panels
E924 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 • Check the motor output connector (4P)
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 fall detection switch is input in
the state that the power is turned ON.
• When the position of the detection bar
of the AE device is shifted from the
home position.
• When the motor signal is not properly
inputted.
• When the short-circuited solenoid is desired
to be driven.
• When voltage higher than guaranteed
one is inputted.
• 200V has been inputted to SC-910 of
100V specifications.
• JUS : 220V is applied to the box of 120V.
• CE : 400V is applied to the box of 230V.
• When voltage lower than guaranteed
one is inputted.
• 100V has been inputted to SC-910 of
200V specifications.
• JUS : 120V is applied to the box of 220V.
• Inner circuit is broken by the applied
overvoltage
• Operation panel cord is disconnected.
• Operation panel is broken.
• Motor driver has broken.
– 62 –
Items to be checked
• Check the synchronizer connector (CN30)
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.
for loose connection and disconnection.
• Check whether there is any holdup when
turning the motor by hand.
• Check the machine head connector
(CN31) for loose connection and disconnection.
• Check whether the machine head is tilted
without turning OFF the power switch
(sewing machine operation is prohibited
for safety sake).
• Check whether the fall detection switch
cord is caught in the sewing machine
or the like.
• Check whether the fall detection switch
lever is caught in something.
• Check whether the detection bar of the
AE device has returned to the correct
position.
• Check whether the function setting No. 57
has been mistakenly set.
• Check the AE device connectors (CN121,
CN123) for loose connection and
disconnection.
• Check whether the AE device cord has
broken since the cord is caught in the
machine head.
• Check the motor signal connector
(CN38,CN39) 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 solenoid is short-
circuited.
• Check whether the applied power voltage
is higher than the rated voltage + (plus) 10%
or more.
• Check whether 100V/200V changeover
connector 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 100V/200V changeover
connector is improperly set.
• Check whether fuse or regenerative
resistance is broken.
• Check whether operation panel connectors
(CN34 and CN35) are loosened or
disconnected.
• Check whether operation panel cord is
disconnected since the cord is caught
with machine head.