Mitsubishi Electric FR-A820-00046 (0.4K), Instruction Manual

Page: 1051 / 1218

Protective functions Causes and corrective actions
FR-A800 6 - 11
Operation panel
indication
Er3
Name Calibration error
Description Analog input bias and gain calibration values have been set too close.
Check point
Check the settings of calibration parameters C3, C4, C6 and C7 (calibration functions).
(Refer to page 5-418.)
Operation panel
indication
Er4
Name Mode designation error
Description
앫
Parameter setting was attempted in the External or NET operation mode while Pr. 77 = "1".
앫
Parameter write was attempted when the command source is not at the operation panel
(FR-DU08).
Check point
앫
Check that operation mode is PU operation mode.
앫
Check that the Pr. 551 setting is correct.
Corrective action
앫
After setting the operation mode to the "PU operation mode", make parameter setting.
(Refer to page 5-271.)
앫
When Pr. 77 = "2", parameter write is enabled regardless of the operation mode.
(Refer to page 5-211.)
앫
Set Pr. 551 = "2". (Refer to page 5-282.)
Operation panel
indication
Er8
Name USB memory device operation error
Description
앫
An operation command was given during the USB memory device operation.
앫
A copy operation (writing) was performed while the PLC function was in the RUN state.
앫
A copy operation was attempted for a password locked project.
Check point
앫
Check if the USB memory device is operating.
앫
Check if the PLC function is in the RUN state.
앫
Check if the project data is locked with a password.
Corrective action
앫
Perform the operation after the USB memory device operation is completed.
앫
Stop the PLC function. (Refer to page 5-610 and the PLC function programming manual.)
앫
Unlock the password of the project data using FR Configurator2.
(Refer to the Instruction Manuals of FR Configurator2 and GX Works2.)
Operation panel
indication
rE1
Name Parameter read error
Description
앫
A failure has occurred at the operation panel side EEPROM while reading the copied
parameters.
앫
A failure has occurred in the USB memory device while copying the parameters or reading
the PLC function project data.
Check point
⎯
Corrective action
앫
Perform parameter copy again. (Refer to page 5-740, page 5-742.)
앫
Perform PLC function project data copy again. (Refer to page 5-610)
앫
The USB memory device may be faulty. Replace the USB memory device.
앫
The operation panel (FR-DU08) may be faulty. Please contact your sales representative.