Mitsubishi Electric 800 Series Instruction Manual page 29

 Retry count excess
Operation panel
indication
The inverter output is shut off if the operation cannot be resumed properly within the number of retries set in Pr.67
Description Number of retries at fault occurrence. This function is available when Pr.67 is set. This protective function is
not available in the initial setting (Pr.67 = "0").
Check point Find the cause of the fault occurrence.
Corrective action Eliminate the cause of the fault preceding this fault indication.
Reference FR-E800 Instruction Manual (Function)
 Parameter storage device fault (main circuit board)
Operation panel
indication
Description The inverter output is shut off if a fault occurs in the inverter model information.
Check point ――――
Corrective action Contact your sales representative.
 CPU fault
Operation panel
indication
Description The inverter output is shut off if the communication fault of the built-in CPU occurs.
• Check for devices producing excess electrical noises around the inverter.
Check point
• When Ethernet communication is used, check that the communication cable is connected properly.
• Take measures against noises if there are devices producing excess electrical noises around the inverter.
Corrective action • When Ethernet communication is used, connect the communication cable properly.
• Contact your sales representative.
• FR-E800 Instruction Manual (Function)
Reference
• FR-E800 Instruction Manual (Communication)
 Abnormal output current detection
Operation panel
indication
The inverter output is shut off if the output current exceeds the Pr.150 Output current detection level setting.
Description This functions is available when "1" is set in Pr.167 Output current detection operation selection. When the
initial value (Pr.167 = "0") is set, this protective function is not available.
Check the settings of Pr.150, Pr.151 Output current detection signal delay time, Pr.166 Output current
Check point
detection signal retention time, and Pr.167.
Reference FR-E800 Instruction Manual (Function)
 Inrush current limit circuit fault
Operation panel
indication
The inverter output is shut off when the resistor of the inrush current limit circuit is overheated. The inrush current
Description
limit circuit is faulty.
• Check that frequent power ON/OFF is not repeated.
Check point • Check if the input side fuse (5A) in the power supply circuit of the inrush current limit circuit contactor is blown.
• Check that the power supply circuit of inrush current limit circuit contactor is not damaged.
Configure a circuit where frequent power ON/OFF is not repeated.
Corrective action
If the problem still persists after taking the above measure, contact your sales representative.
Reference FR-E800 Instruction Manual (Function)
E.RET
E.PE2
E.CPU
E. 5
E. 6
E. 7
E.CDO
E.IOH
2. Protective Functions
2.5 Causes and corrective actions
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