JUKI SC-910N User Manual

– 47 –
E811 Overvoltage • When voltage higher than guaranteed
one is inputted.
• 200V has been inputted to SC-910N of
100V specications.
• JA : 220V is applied to 120V box.
• CE : 400V is applied to 230V box.
• 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.
E813 Low voltage • When voltage lower than guaranteed
one is inputted.
• 100V has been inputted to SC-910N of
200V specications.
• JA : 120V is applied to 220V box
• Inner circuit is broken by the applied
overvoltage
• Check whether the voltage is lower than the
rated voltage - (minus) 10% or less.
• Check whether 100V/200V changeover
connector is improperly set.
• Ch ec k w he the r fu s e or r eg ene ra t iv e
resistance is broken.
E924 Encoder failure • Motor driver has broken.
E944 R i g h t n e e d l e co n t r o l
impossible
(When LH-4168, or 4188
is selected)
• Right needle has shifted from the origin
during holding it.
• Right needle has shifted from the origin
during releasing left needle.
• Check whether the right needle origin
sensor is broken.
• Check whether needle bar has shifted from
the holding position by the exterior force.
E945 L e f t n e e d l e c o n t r o l
impossible
(WhenLH-4168, or 4188 is
selected)
• Right needle has shifted from the origin
during holding it.
• Right needle has shifted from the origin
during releasing left needle.
• Check whether the left needle origin sensor
is broken.
• Check whether needle bar has shifted from
the holding position by the exterior force
E046 Both-needle lock
(When LH-4168, or 4188
is selected)
• Both needles are locked at the time of
turning ON the power. (Needles are in
the lifting position.)
• Check whether left-right needle position
origin sensors are broken.
• Check whether the sensor connectors are
disconnected or loosely connected.
E730 Encoder failure • When the motor signal is not properly
inputted.
• Check the motor signal connector (CN39)
for loose connection and disconnection.
• Check whether the motor signal cord has
broken since the cord is caught in the
machine head.
E731 Motor hole sensor failure
E303 Woodruff plate sensor error • Woodruff plate sensor signal cannot be
detected.
• C h e c k w h e t h e r t h e m a c h i n e h e a d
corresponds with the machine type setting.
• Check whether the motor encoder connector
is disconnected.
E343 Bobbin thread remaining
amount sensor unit failure
• When the position of the detection bar of
the AE device is shifted from the home
position.
• 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,
C N 1 2 3 ) f o r l o o s e c o n n e c t i o n a n d
disconnection.
• Check whether the AE device cord has
broken since the cord is caught in the
machine head.
No. Description of error detected Cause of occurrence expected Items to be checked

JUKI SC-910N Specifications

General

Brand	JUKI
Model	SC-910N
Category	Sewing Machine
Language	English