JUKI LZ-2290CS Instruction Manual page 105

Error
Description of error
code
Normal stitch portion,
E489
normal feed amount
error
Continuous sewing, cy-
E490
cle sewing setting error
Cycle sewing pattern
E491
error
Condensation custom
E493
pattern width error
Max. zigzag width error
E497
Stitch baseline position
E498
error
E499 Simplified program fault
E704 Data failure (system-ver-
sion mismatch)
E731 Motor hole sensor fault
E733 Reverse rotation of mo-
tor
E750 Sewing machine stops
Cause
• In the case the normal feed amount at
the normal portion exceeds the specified
feed range.
• In the case the number of stitches of 1st
step is 0 (zero) of continuous sewing
pattern.
• In the case the pattern used for cycle
sewing invites an error.
• In the case the zigzag width of the con-
densation custom pattern exceeds the
max. limit.
• The set zigzag width exceeds the max.
zigzag width limit.
• In the case, though the set zigzag width
falls within the max. zigzag width limit,
the needle throwing position exceeds
the max. zigzag width limit.
• In the case the system version does not
match the machine head setting.
• In the case the motor signal is not input
properly.
• When the motor runs at a speed of 500
sti/min. or more, the motor runs in the
reverse direction of the indicated direc-
tion of rotation.
• In the case the optional-input safety
switch is pressed.
– 100 –
Item to be checked
• Reset the error. Then, re-input the
data.
• Adjust the normal feed amount at
the normal portion of the pattern to a
value that falls within the limit range.
• Reset the error. Then, re-input the
data.
• Reset the error. Then, re-input the
data.
• Re-input the pattern data which has
invited the error.
• Reset the error. Then, re-input the
data.
• Adjust the zigzag width of the con-
densation custom pattern to a value
which falls within the max. limit.
• Reset the error. Then, re-input the
data.
• Adjust the zigzag width to a value
that falls within the max. zigzag width
limit.
• Reset the error. Then, re-input the
data.
• Adjust the stitch baseline to the posi-
tion that falls within the max. zigzag
width limit.
• In the case a condensation custom
pattern is selected, check the con-
densation position of the pattern and
correct it appropriately if necessary.
• Re-write the system version to the
applicable one.
• Check whether the motor signal con-
nector has loosened or slipped off.
• Check whether the motor signal cord
has broken by being caught under
the machine head.
• Check whether the insertion direction
of the motor encoder connector is
correct.
• Check whether the main shaft motor
encoder wire connection is correct.
• Check whether the main shaft motor
wire connection for power is correct.