JUKI DDL-9000C-S - Page 58

Error
code
Description of error Cause Item to be checked
E903 85-V power supply
fault
• In the case the 85-V voltage is not
properly output.
• Check whether the motor is faulty
• Check the F2 fuse.
E904 24-V power supply
fault
• In the case the 24-V voltage is not
properly output.
E910 The presser motor
origin retrieval error
• In the case the presser motor has failed
to return to its origin.
• Check whether the presser setting is
correct (memory switch No. 23).
• Check whether the presser motor
origin has been correctly adjusted.
E912 Main shaft motor
speed detection
error
• In the case the main shaft motor runs
at a speed that exceeds the assumed
speed.
• Check whether connection encoder
wire of the main shaft motor is
correct.
• Check whether connection of the
main shaft motor wire is correct.
E915 Failure of
communication with
operation panel
• In the case the operation panel
connector is not inserted properly.
• Check whether CN38 of the CTL PCB
or CN200 of the panel is connected
properly or whether the cable has
broken.
E922 Main shaft control
failure
• In the case the main shaft fails to
operate as assumed.
E924 Motor driver fault • In the case the motor driver has broken.
E946 Machine-head
EEPROM write error
• In the case data cannot be written on
the machine-head EEPROM.
• Check whether the machine-head
INT PCB is connected properly.
E955 Electric current
sensor error
• The electric current of the main shaft
motor exceeds the assumed value.
• Check whether connection of the
main-shaft motor wire for power is
correct.
E961 Pitch motor deviation
error
• In the case the pitch motor fails to
operate because of an excessive load.
• Check whether the pitch motor runs
smoothly.
E962 Presser motor
deviation error
• In the case the presser fails to operate
because of an excessive load.
• Check whether the presser motor
runs smoothly.
E971 Feed horizontal
motor IPM over-
current protection
• Pitch motor maloperation.
E972 Feed horizontal
motor overload
• In the case the pitch motor is applied
with an excessive load.
• Check whether the pitch motor runs
smoothly.
E973 Feed vertical motor
IPM over-current
protection
• Feed driving motor maloperation.
E974 Feed vertical motor
overload
• In the case the feed driving motor is
applied with an excessive load.
• Check whether the feed driving motor
runs smoothly.
E975 Presser motor
IPM over-current
protection
• Presser motor maloperation.
E976 Presser horizontal
motor overload
• In the case the presser motor is applied
with an excessive load.
• Check whether the presser motor
runs smoothly.
E985 Return-to-origin
error of pitch motor
or feed driving motor
• In the case the pitch motor has failed to
return to its origin.
• In the case the feed driving motor has
failed to return to its origin.
• Check whether the origin of the pitch
motor has been adjusted properly.
• Check whether the origin of the feed
driving motor has been adjusted
properly.
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