JUKI SC-510 - Page 45

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No. Description of error detected Cause of occurrence expected Items to be checked
E799 Thread trimming sequence
time over
• Thread trimming sequence control is not
completed within the predetermined time
(3 seconds).
• The machine head mounted is dif
ferent
from the selection of the machine head.
•
Motor pulley diameter is different from the setting
of motor pulley diameter effective diameter).
• Belt is loose.
E811 Overvoltage • When voltage higher than guaranteed one
is inputted.
• 220V has been inputted to SC-510 of
1
10V specications.
•
4
00V is applied to the box of 220V (230V).
• Check whether the applied power voltage is
higher than the rated voltage + (plus)
1
0%
or more.
• Check whether 110V/220V changeover
switch is improperly set.
In the aforementioned cases, POWER p.c.b
is broken.
E813 Low voltage • When voltage lower than guaranteed one
is inputted.
• 1
10V has been inputted to SC-510 of
220V specications.
•
110V is applied to the box of 220V.
• Inner circuit is broken by the applied over
-
voltage
• Check whether the voltage is lower than
the rated voltage – (minus)
10% or less.
• Check whether 110V/220V changeover
switch is improperly set.
• Check whether fuse or regenerative resis
-
tance is broken.
E906
Operation panel transmis-
sion failure
•
Disconnection of operation panel cord.
• Operation panel has broken.
• Check the operation panel connector
(CN38) for loose connection and discon-
nection.
• Check whether the operation panel cord
has broken since the cord is caught in the
machine head.
E924 Motor driver failure • Motor driver has broken.