Causes And Corrective Actions - Mitsubishi Electric FR-E700 Instruction Manual

Causes and corrective actions

7.2 Causes and corrective actions
Error message
A message regarding operational troubles is displayed. Output is not shutoff.
Operation panel
indication
Name
Description
Check point
Corrective action
Operation panel
indication
Name
Description
Check point
Corrective action
Operation panel
indication
Name
Description
Check point
Operation panel
indication
Name
Description
Check point
Corrective action
7 - 4
HOLD
Operation panel lock
Operation lock mode is set. Operation other than STOP/RESET is made invalid. (Refer to section
4.3.4.)
—
Press the MODE key for 2s to release lock.
LOCd
Password locked
Password function is active. Display and setting of parameter is restricted.
—
Enter the password in Pr. 297 "Password lock/unlock" to unlock the password function before
operating. (Refer to section 6.17.5.)
Er1
Write disable error
1) You attempted to make parameter setting when Pr. 77 Parameter write selection has been set
to disable parameter write.
2) Frequency jump setting range overlapped.
3) The PU and inverter cannot make normal communication.
1) Check the setting of Pr. 77 "Parameter write selection". (Refer to section 6.17.2.)
2) Check the settings of Pr. 31 to 36 (frequency jump). (Refer to section. 6.4.2.)
3) Check the connection of the PU and inverter.
Er2
Write error during operation
When parameter write was performed during operation with a value other than "2" (writing is
enabled independently of operation status in any operation mode) is set in Pr. 77 and the STF
(STR) is on.
1) Check the Pr. 77 setting. (Refer to section 6.17.2.)
2) Check that the inverter is not operating.
1) Set "2" in Pr. 77.
2) After stopping operation, make parameter setting.
Troubleshooting