JUKI LBH-1790A Series Instruction Manual page 73

Error code
E499 Presser size error (Length direction : rear)
When stitching data exceeds the size of rear of length
direction of presser.
E703 Panel is connected to the machine other than
supposed. (Machine type error)
When machine type code of system is improper in case
of initial communication.
E704 Nonagreement of system version
When version of system software is improper in case
of initial communication.
E730 Main shaft motor encoder defectiveness or phase-
out
When encoder of sewing machine motor is abnormal.
Main motor hole sensor defectiveness or position
E731
sensor defectiveness
When hole sensor or position sensor of sewing
machine motor is defective.
Reverse rotation of main shaft motor
E733
When sewing machine motor rotates in reverse
direction.
E801 Phase-lack of power
When phase-lack of input power occurs.
E802 Power instantaneous cut detection
When input power is instantaneously OFF.
E811 Overvoltage
In the case the input power source voltage/current is
equal to or more than the specified value
Low voltage
E813
In the case the input power source voltage/current is
equal to or less than the specified value
E901 Abnormality of main shaft motor IPM
When IPM of servo control p.c.b. is abnormal.
E902 Overcurrent of main shaft motor
When current flows excessively to sewing machine
motor.
Abnormality of stepping motor power
E903
In the case the stepping motor power of the servo-
control PCB is out of the range of the specified values
E904 Abnormality of solenoid power
In the case the solenoid power of the servo-control
PCB is out of the range of the specified values
E905 Abnormality of temperature of heat sink for servo
control p.c.b.
When temperature of heat sink of servo control p.c.b.
is 85˚C or more.
E906 Main PCB heat sink temperature fault
In the case the temperature of the heat sink of the main
PCB increases
E907 Stitch width motor origin retrieval error
When origin sensor signal is not inputted at the time of
origin retrieval motion.
Description
– 70 –
How to recover Place of recovery
Possible to (During individual sewing/
re-enter after cycle sewing)
pressing reset Sewing data edit screen
key. [S002] Cloth cut length
(During continuous sewing)
Standard screen
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.
Turn OFF the
power.