Mitsubishi Electric 800 Series, Инструкция по эксплуатации, Страница: 630 / 727

Causes and corrective actions
PROTECTIVE FUNCTIONS
629
6 5
6.4
Causes and corrective actions
 Error message
A message regarding operational troubles is displayed. Output is not shut off.
Abbreviation LOCD
Name
Password locked
Description
Password function is active. Display and setting of parameters are restricted.
Check point
————
Corrective action
Enter the password in Pr.297 Password lock/unlock to unlock the password function before operating.
(Refer to page 255 .)
Abbreviation Er1
Name
Parameter write error
Description
• Parameter setting was attempted while Pr.77 Parameter write selection is set to disable parameter write.
• Overlapping range has been set for the frequency jump.
• Overlapping range has been set for the adjustable 5 points V/F.
• The PU and inverter cannot make normal communication.
Check point
• Check the Pr.77 Parameter write selection setting. (Refer to page 251 .)
• Check the settings of Pr.31 to Pr.36 (frequency jump) . (Refer to page 330 .)
• Check the settings of Pr.100 to Pr.109 (adjustable 5 points V/F) . (Refer to page 598 .)
• Check the connection of PU and the inverter.
Abbreviation Er2
Name
Write error during operation
Description
Parameter write was attempted while Pr.77 = "0".
Check point • Check that the inverter is stopped.
Corrective action
• After stopping the operation, make parameter setting.
• When setting
Pr.77 = "2", parameter write is enabled during operation. (Refer to page 251 .)
Abbreviation Er3
Name
Calibration error
Description
Analog input bias and gain calibration values have been set too close.
Check point
Check the settings of Pr.902, Pr.903, Pr.904, and Pr.905 (calibration functions). (Refer to page 402 .)
Abbreviation Er4
Name
Mode designation error
Description
• Parameter setting was attempted in the External or NET operation mode while Pr.77 = "1".
• Parameter write was attempted when the command source is not at the operation panel.
Check point
• Check that operation mode is PU operation mode.
• Check that the
Pr.551 setting is correct.
Corrective action
• After setting the operation mode to the "PU operation mode", make parameter setting. (Refer to page 291 .)
• When Pr.77 = "2", parameter write is enabled regardless of the operation mode. (Refer to page 251 .)
• Set Pr.551 = "2". (Refer to page 301 .)
Abbreviation Er8
Name
USB memory device operation error
Description
• An operation command was given during the USB memory device operation.
• A copy operation (writing) was performed while the PLC function was in the RUN state.
• A copy operation was attempted for a password locked project.
Check point
• Check if the USB memory device is operating.
• Check if the PLC function is in the RUN state.
• Check if the project data is locked with a password.
Corrective action
• Perform the operation after the USB memory device operation is completed.
• Stop the PLC function. (Refer to
page 533 and the PLC function programming manual.)
• Unlock the password of the project data using FR Configurator2. (Refer to the Instruction Manuals of FR
Configurator2 and GX Works2.)