Mitsubishi F700 Series User Manual

339
Causes and corrective actions
5
PROTECTIVE FUNCTIONS
Operation Panel
Indication
E.PE
FR-PU04
FR-PU07(-01)
Corrupt Memry
Name
Parameter storage device fault (control circuit board)
Description
Trips when a fault occurred in the parameter stored. (EEPROM failure)
Check point
Check for too many number of parameter write times.
Corrective action
Please contact your sales representative.
When performing parameter write frequently for communication purposes, set "1" in Pr. 342 to enable
RAM write. Note that powering OFF returns the inverter to the status before RAM write.
Operation Panel
Indication
E.PE2
FR-PU04 Fault 14
FR-PU07(-01) PR storage alarm
Name
Parameter storage device fault (main circuit board)
Description
Trips when a fault occurred in the parameter stored. (EEPROM failure)
Check point
——————
Corrective action
Please contact your sales representative.
Operation Panel
Indication
E.PUE
FR-PU04
FR-PU07(-01)
PU Leave Out
Name
PU disconnection
Description
· This function stops the inverter output if communication between the inverter and PU is suspended,
e.g. the operation panel and parameter unit is disconnected, when "2", "3", "16" or "17", "102", "103",
"116" or "117" was set in Pr. 75 Reset selection/disconnected PU detection/PU stop selection.
· This function stops the inverter output when communication errors occurred consecutively for more
than permissible number of retries when a value other than "9999" is set in Pr. 121 Number of PU
communication retries during the RS-485 communication with the PU connector.
· This function stops the inverter output if communication is broken for the period of time set in Pr. 122
PU communication check time interval during the RS-485 communication with the PU connector.
Check point
· Check that the FR-DU07 or parameter unit (FR-PU04/FR-PU07) is fitted tightly.
· Check the Pr. 75 setting.
Corrective action
Fit the FR-DU07 or parameter unit (FR-PU04/FR-PU07) securely.
Operation Panel
Indication
E.RET
FR-PU04
FR-PU07(-01)
Retry No Over
Name
Retry count excess
Description
If operation cannot be resumed properly within the number of retries set, this function trips the inverter.
Functions only when Pr. 67 Number of retries at fault occurrence is set. When the initial value (Pr. 67 = "0")
is set, this fault does not occur.
Check point
Find the cause of fault occurrence.
Corrective action
Eliminate the cause of the fault preceding this error indication.
Operation Panel
Indication
E. 5
FR-PU04
FR-PU07(-01)
Fault 5
E. 6 Fault 6
E. 7 Fault 7
E.CPU CPU Fault
Name
CPU fault
Description
Stops the inverter output if the communication fault of the built-in CPU occurs.
Check point
Check for devices producing excess electrical noises around the inverter.
Corrective action
· Take measures against noises if there are devices producing excess electrical noises around the
inverter.
· Please contact your sales representative.
Operation Panel
Indication
E.CTE
FR-PU04
FR-PU07(-01)
E.CTE
Name
RS-485 terminal power supply short circuit
Description
When the internal power supply for RS-485 terminals are shorted, this function shuts off the power
output.
At this time, communication from the RS-485 terminals cannot be made.
To reset, enter the RES signal or switch power OFF, then ON again.
Check point
· Check that the RS-485 terminals are connected correctly.
Corrective action
· Check the connection of the RS-485 terminals

Mitsubishi F700 Series Specifications

General

Humidity	95% RH or less (non-condensing)
Control Method	V/F control
Protection Features	Overcurrent, overvoltage, undervoltage, overheat, short circuit
Communication Options	RS-485
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +65°C
Altitude	Up to 1000m above sea level
Overload Capacity	150% for 60 seconds
Cooling Method	Forced air cooling
Power Range	0.75 to 630 kW (1 to 845 hp)
Output Voltage	3-phase 200 to 240 VAC, 380 to 500 VAC (matching input voltage)