JUKI AMS-221EN Series Engineer's Manual page 213

Error code Display
E434
E437
E438
E441
E703
E704
E730
E731
E733
E802
Description of error
Hardware error has occurred.
Function cannot be selected.
Execution cannot be performed.
Back-up data does not exist.
Panel is connected to the sewing
machine which is not supposed. is different from that of
(Machine type error)
When the machine type code of
system is not proper in the initial
communication.
Inconsistency of system
version
System software version is
inconsistent in the initial
communication.
Main shaft motor encoder
defectiveness
When encoder of the sewing
machine motor is abnormal.
Main motor hole sensor is
defective or position sensor
is defective
Hole sensor or position sensor of
sewing machine motor is defective.
Reverse rotation of main shaft
motor
When sewing machine motor
rotates in reverse direction.
Power electrical discontinuity
detection
When the input power supply is
instantaneously turned OFF.
Display message
Hardware error has
occurred.
Function cannot be
selected.
Execution cannot be
performed.
Back-up data does not
exist.
Model of sewing machine
panel.
Version of program
incompatible.
Sewing machine motor is
defective.
(Encoder A and B phases)
Sewing machine motor is
defective.
(Encoder U, V, and W
phases)
Sewing machine motor runs
in the reverse direction.
Power instantaneously
lost.
– 209 –
How to recover Place of recovery
Possible to Previous
re-start after screen
reset.
Possible to Previous
re-start after screen
reset.
Possible to Previous
re-start after screen
reset.
Possible to Previous
re-start after screen
reset.
Possible to Communication
rewrite program screen
down
pressing
communication
switch.
Possible to Communication
rewrite program screen
pressing
communication
switch.
Turn OFF
the power
Turn OFF
the power
Turn OFF
the power
Turn OFF
the power