JUKI LK-1900B series - Page 67

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Error code Indication Description of error Corrective measure Remarks
E396
Shorter-thread remaining type thread
trimmer cylinder error
The shorter-thread remaining thread trim-
mer cylinder fails to operate.
(The shorter-thread remaining type thread
trimmer cylinder sensor fails to turn OFF
when the cylinder operates.)
Turn OFF the power switch.
Check whether the air pres-
sure is adequate and wheth-
er the shorter-thread remain-
ing thread trimming cylinder
sensor and MAIN PCB CN53
have loosened or fallen off.
E397
Suction nozzle cylinder error
The suction nozzle cylinder fails to oper-
ate.
(The suction nozzle cylinder sensor fails
to turn OFF when the cylinder operates.)
Turn OFF the power switch.
Check whether the air pres-
sure is adequate and wheth-
er the suction nozzle cylinder
sensor and MAIN PCB CN54
have loosened or fallen off.
E398
Shorter-thread remaining type thread
trimmer cylinder sensor error
The shorter-thread remaining type thread
trimmer cylinder sensor fails to detec
Turn OFF the power switch.
Check whether the air pres-
sure is adequate and wheth-
er the shorter-thread remain-
ing thread trimming cylinder
sensor and MAIN PCB CN53
have loosened or fallen off.
E399
Suction nozzle cylinder sensor error
The suction nozzle cylinder sensor fails to
detect.
Turn OFF the power switch.
Check whether the air pres-
sure is adequate and wheth-
er the suction nozzle cylinder
sensor and MAIN PCB CN54
have loosened or fallen off.
E405
Prohibition of deletion of direct pat-
terns
The direct pattern is set in the cycle sew-
ing data.
Re-operation is enabled after
resetting.
E430
Counter set-value is reached
The set value of the counter is reached.
* For the type of counter and the counter
value displayed depends on the prede-
termined counter.
Re-operation is enabled after
resetting.
E730
Encoder trouble A
Encoder A or B phase cannot be detected.
Turn OFF the power switch.
Check whether the pin CN15
has come off or has loos-
ened.
E731
Encoder trouble B
Encoder U, V or W phase cannot be de-
tected.
Turn OFF the power switch.
Check whether the pin CN15
has come off or has loos-
ened.
E733
Reverse rotation of motor
The motor is reversing.
Turn OFF the power switch
and check whether coupling
of the main motor is loose.
E811
Overvoltage error
Power source voltage is beyond the speci-
ed value.
Check the power supply volt-
age.
E813
Low voltage error
Power source voltage is short.
Check the power supply volt-
age.