Mitsubishi Electric FR-A720-0.4K Instruction Manual page 147

Causes and corrective actions
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
Corrective action
Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Description
Corrective action
140
Er4
Mode designation error
Appears if a parameter setting is attempted in the External or NET operation mode with Pr. 77 ≠ "2".
·
· Appears if a parameter setting is attempted when the command source is not at the operation panel. (FR-
DU07).
· Check that operation mode is "PU operation mode".
· Check the Pr. 77 setting. (Refer to Chapter 4 of
· Check the Pr. 551 setting.
· After setting the operation mode to the "PU operation mode", make parameter setting. (Refer to page
62.)
· After setting Pr. 77 = "2", make parameter setting.
· Set Pr.551 = "2 (initial setting)". (Refer to Chapter 4 of
rE1
Parameter read error
An error occurred in the EEPROM on the operation panel side during parameter copy reading.
· Make parameter copy again. (Refer to page 55.)
· Check for an operation panel (FR-DU07) failure. Please contact your sales representative.
rE2
Parameter write error
· You attempted to perform parameter copy write during operation.
· An error occurred in the EEPROM on the operation panel side during parameter copy writing.
Is the FWD or REV LED of the operation panel (FR-DU07) lit or flickering?
· After stopping operation, make parameter copy again. (Refer to page 55.)
· Check for an operation panel (FR-DU07) failure. Please contact your sales representative.
rE3
Parameter verification error
· Data on the operation panel side and inverter side are different.
· An error occurred in the EEPROM on the operation panel side during parameter verification.
Check for the parameter setting of the source inverter and inverter to be verified.
· Press to continue verification.
Make parameter verification again. (Refer to page 56.)
· Check for an operation panel (FR-DU07) failure. Please contact your sales representative.
rE4
Model error
· A different model was used for parameter write and verification during parameter copy.
· When parameter copy write is stopped after parameter copy read is stopped
· Check that the verified inverter is the same model.
· Check that the power is not turned OFF or an operation panel is not disconnected, etc. during
parameter copy read.
· Use the same model (FR-A700 series) for parameter copy and verification.
· Perform parameter copy read again.
Err.
· The RES signal is on
· The PU and inverter cannot make normal communication (contact fault of the connector)
· When the voltage drops in the inverter's input side.
· When the control circuit power (R1/L11, S1/L21) and the main circuit power (R/L1, S/L2, T/L3) are
connected to a separate power, it may appear at turning ON of the main circuit. It is not a fault.
· Turn OFF the RES signal.
· Check the connection of the PU and inverter.
· Check the voltage on the inverter's input side.
the Instruction Manual (Applied).)
the Instruction Manual (Applied).)
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