Mitsubishi Electric PLK-J-CU-20S Technical Manual page 35

Industrial sewing machine
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[Case2]
Though you turn the power switch ON and a screen appears on the
operation panel, the screen display is incorrect.
[Checking Items and Corrective Actions]
Is the problem solved when you switch the screen or turn the power switch OFF and
then ON again?
▪Reinstall the system.
Refer to "[6] Set up"
▪If you take a corrective action but no improvement is made, consult with your
local representative.
[Case 3]
I press the foot pedal, but the machine does not run.
The message "MACHINE HEAD TILT WAS DETECTED" appears.
Or the message "START PROHIBIT SIGNAL BEING DETECTED" appears.
[Checking Items and Corrective Actions]
Is the machine tilted?
▪Return the machine back to its proper state and try again.
▪Check if the tilting sensor switch is damaged or disconnected.
Is the bobbin door open?
▪Close the bobbin door.
▪Check if the sensor switch of bobbin door is damaged or disconnected
Is the signal HES among the input signals changed?
▪Check input customization.
[Case 4]
No screen appears on the operation panel when you turn the power switch
ON. "The front panel red (warning) LED is off."
[Checking Items and Corrective Actions]
The operation panel may be defective.
▪Consult with your local representative.
[10] ‐ 2

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