Causes And Corrective Actions - Mitsubishi Electric 700 Series Instruction Manual

Causes and corrective actions

6.3

Causes and corrective actions

(1) Error message
A message regarding operational troubles is displayed. Output is not shutoff.
Operation panel
HOLD
indication
Name
Operation panel lock
Description
Operation lock mode is set. Operation other than
Check point
Corrective action
Press
Operation panel
LOCd
indication
Name Password locked
Description
Password function is active. Display and setting of parameter is restricted.
Check point
Enter the password in Pr. 297 Password lock/unlock to unlock the password function before operating. (Refer to page
Corrective action
169).
Operation panel
Er1
indication
Name
Write disable error
You attempted to make parameter setting when Pr. 77 Parameter write selection has been set to disable parameter
Description write.
Frequency jump setting range overlapped.
Check the setting of Pr. 77 Parameter write selection. (Refer to page 166).
Check point
Check the settings of Pr. 31 to Pr. 36 (frequency jump). (Refer to page 106)
Operation panel
Er2
indication
Name
Write error during operation
When parameter write was performed during operation with a value other than "2" (writing is enabled independently
Description
of operation status in any operation mode) is set in Pr. 77 and the STF (STR) is ON.
Check the Pr. 77 setting. (Refer to page 166).
Check point
Check that the inverter is not operating.
Set "2" in Pr. 77.
Corrective action
After stopping operation, make parameter setting.
Operation panel
Er4
indication
Name
Mode designation error
Appears if a parameter setting is attempted in the NET operation mode with Pr. 77 ≠ "2."
Description
Check that operation mode is PU operation mode.
Check point
Check the Pr. 77 setting. (Refer to page 166).
After setting the operation mode to the "PU operation mode", make parameter setting. (Refer to page 212)
Corrective action
After setting Pr. 77 = "2", make parameter setting.
Operation panel
Err.
indication
Name
Inverter reset
Appears when a reset command is executed by an error reset of FL remote communication and
Description
operation panel.
Appears at power-OFF.
Corrective action
Turn OFF the reset command
194
for 2s to release lock.
is invalid. (Refer to page 184)
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