JUKI PLC-2710V Instruction Manual page 92

Error
Description of error
code
E811 Over-voltage
E813 Low voltage
E815 Regenerative resistor is
not connected
E900 Main shaft motor IPM
overcurrent protection
E901 Main shaft motor IPM
overload
E903 85-V power supply fault
E904 24-V power supply fault
E910 The presser motor origin
retrieval error
E912 Main shaft motor speed
detection error
E915 Failure of communica-
tion with operation panel
E918 Main shaft temperature
error
E922 Main shaft control failure • In the case the main shaft motor is out
E924 Motor driver fault
E946 Machine-head EEPROM
write error
E955 Electric current sensor
error
E961 Pitch motor deviation
error
E962 Presser motor deviation
error
E963 IPM temperature error
E965 Pitch motor temperature
error
Cause
• In the case a voltage that is equal to or
more than the guaranteed voltage is
input.
• In the case a voltage of 200 V is applied
though the voltage is set to 100 V.
• In the case a voltage of 220 V is input to
the box of "JA: 120 V".
• In the case a voltage of 400 V is applied
to the box of "CE: 230 V".
• In the case the regenerative resistor is
not connected.
• Maloperation of the main shaft motor.
• In the case the 85-V voltage is not prop-
erly output.
• In the case the 24-V voltage is not prop-
erly output.
• In the case the presser motor has failed
to return to its origin.
• In the case communication with the
operation panel cannot be carried out.
• In the case the temperature of the CTL
PCB is excessively high.
of control.
• In the case the motor driver has broken.
• In the case the machine head PCB is
not correctly connected.
• Main motor shaft failure.
• Electric current sensor failure.
• In the case the pitch motor fails to oper-
ate because of an excessive load.
• In the case the presser fails to operate
because of an excessive load.
• In the case the temperature of the CTL
PCB is excessively high.
• In the case the pitch motor is applied
with an excessive load.
– 88 –
Item to be checked
• Check whether the supply voltage of
"rated supply voltage ±10 % or more"
is applied.
• Check whether the 100 V/200 V
changeover connector is set correct-
ly.
In the above-described cases, the
power PCB has broken.
• Check whether the regenerative
resister is connected to the regenera-
tive resistor connector (CN11).
• Check whether the stepping motor is
faulty.
• Check the F2 fuse.
• Check whether the presser setting is
correct (memory switch No. 23).
• Check whether the presser motor
origin has been correctly adjusted.
• Check whether CN32 has loosened
or come off.
• Check whether the main shaft motor
has short-circuited.
• Check whether the pitch motor runs
smoothly.
• Check whether the presser motor
runs smoothly.
• Check whether the pitch motor runs
smoothly.