Mitsubishi Electric 800 Series Instruction Manual page 573

Abbreviation
Name
Description
Check point
Corrective action
Abbreviation
Name
Description
Check point
Corrective action
Abbreviation
Name
Description
Corrective action
572
6. PROTECTIVE FUNCTIONS
6.4 Causes and corrective actions
rE7
File quantity error
• A parameter copy was attempted to the USB memory device in which the copy files from 001 to 099 had
already been saved.
• Check if the number of copy files in the USB memory device has reached 99.
• Delete the copy file in the USB memory device and perform parameter copy again.
rE8
No PLC function project file
The specified PLC function project file does not exist in the USB memory device.
• Check that the file exists in the USB memory device.
• Check that the folder name and the file name in the USB memory device is correct.
The data in the USB memory device may be damaged.
Err.
RES signal ON or communication circuit fault
• The RES signal is turned ON.
• The operation panel and inverter cannot make normal communication (contact faults of the connector).
• This error may occur when the voltage at the input side of the inverter drops.
• When using a separate power source for the control circuit power (R1/L11, S1/L21) from the main circuit
power (R/L1, S/L2, T/L3), this error may appear at turning ON of the main circuit. It is not a fault.
• Turn OFF the RES signal.
• Check the connection between the operation panel and the inverter.
• Check the voltage on the input side of the inverter.