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10. TABLE OF ERROR CODES
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74KE-430F, BE-438F
Communication and memory-related errors
Code Cause and remedy
E400
Communication error detected between the main P.C. board and the panel P.C. board when the power was
turned on.
Turn off the power, and then check that connector P1 on the panel P.C. board and connector P3 on the motor
P.C. board are properly connected.
E401
Communication error detected between the main P.C. board and the motor P.C. board when the power was
turned on.
Turn off the power, and then check that connector P5 on the main P.C. board and connector P2 on the motor P.C.
board are properly connected.
E410
Communication error between main P.C. board and panel P.C. board detected.
Turn off the power, and then turn it back on again.
E411
Communication error between main P.C. board and motor P.C. board detected.
Turn off the power, and then turn it back on again.
E420
No media is inserted.
Press the RESET key to clear the error.
E421
Data contents are incorrect and cannot be used, or no data.
Press the RESET key to clear the error.
Check that data for this pattern number is present in the media.
E422
Error occurred while reading from media.
Press the RESET key to clear the error.
Check the data in the media.
E424
Insufficient space in media.
Press the RESET key to clear the error.
Use different media.
E425
Error occurred while reading from media.
Press the RESET key to clear the error.
Use the specified type of media.
Check if the media is write-protected and if it has enough free space.
E427
A pattern registered in a cycle program has been erased.
Press the RESET key to clear the error.
Re-register the cycle program, or add the pattern.
E428
A pattern registered in a program has been erased.
Press the RESET key to clear the error.
Re-register the program, or add the pattern.
E430
Data cannot be backed up to main P.C. board.
Turn off the power, and then turn it back on again.
E440
Data memory error on main P.C. board.
Turn off the power, and then turn it back on again.
E450
Model selection has not been loaded from the machine head memory.
Turn off the power and check that connector P16 on the power supply motor P.C. board is properly connected.
E451
Data cannot be backed up to machine head memory.
Turn off the power, and then turn it back on again.
E452
Machine head memory is not connected.
Turn off the power, and then check that connector P16 on the main P.C. board is properly connected.
E474
Internal memory is full and copying is not possible.
Press the RESET key to clear the error.
Clear any unnecessary additional patterns.