Causes And Corrective Actions - Mitsubishi Electric FR-E700EX Instruction Manual

Causes and corrective actions

5.3

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
Press
action
Operation panel
LOCD
indication
Name
Password locked
Description
Password function is active. Display and setting of parameter is restricted.
Check point
Corrective
Enter the password in Pr.297 Password lock/unlock to unlock the password function before operating. (Refer to page 183)
action
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 write.
Description
 Speed jump setting range overlapped.
 The PU and drive unit cannot make normal communication.
 Check the setting of Pr.77 Parameter write selection (Refer to page 181)
Check point
 Check the settings of Pr.31 to Pr.36 (speed jump). (Refer to page 116)
 Check the connection of the PU and drive unit.
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 of
Description
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 181)
Check point
 Check that the drive unit is not operating.
Corrective
 Set "2" in Pr.77.
action  After stopping operation, make parameter setting.
Operation panel
Er3
indication
Name Calibration error
Description Analog input bias and gain calibration values are too close.
Check point
Check the settings of C3, C4, C6 and C7 (calibration functions). (Refer to page 173)
Operation panel
Er4
indication
Name
Mode designation error
 Appears if a parameter setting is attempted in the External or NET operation mode with Pr.77  "2".
Description
 Appears if a parameter setting is attempted when the command source is not at the operation panel.
 Check that operation mode is PU operation mode.
 Check the Pr.77 setting. (Refer to page 181)
Check point
 Check if FR Configurator (USB connector) or a parameter unit (FR-PU07) is connected when Pr.551 = "9999 (initial
setting)."
 Check the Pr.551 setting.
 After setting the operation mode to the "PU operation mode", make parameter setting. (Refer to page 186)
Corrective
 After setting Pr.77 = "2", make parameter setting.
action  Disconnect FR Configurator (USB connector) or the parameter unit (FR-PU07), and make parameter setting.
 After setting Pr.551 = "4", make parameter setting. (Refer to page 195)
268
for 2s to release lock.
is invalid. (Refer to page 258)
————
————