Mitsubishi Electric FR-A700 Series 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
Name
Description
Corrective action
CAUTION
• If protective functions of E.ILF, E.PTC, E.PE2, E.EP, E.OD, E.CDO, E.IOH, E.SER, E.AIE, E.USB are activated when using the
FR-PU04, "Fault 14" appears.
Also when the alarm history is checked on the FR-PU04, the display is "E.14".
• If alarms other than the above appear, contact your sales representative.
142
E.IOH
Inrush current limit circuit alarm
This function is activated when the resistor of the inrush current limit circuit overheats. The inrush
current limit circuit failure
Check that frequent power ON/OFF is not repeated.
Configure a circuit where frequent power ON/OFF is not repeated.
If the problem still persists after taking the above measure, please contact your sales representative.
E.SER
Communication error (inverter)
This function stops the inverter output when communication error occurs consecutively for more than
permissible retry count when a value other than "9999" is set in Pr. 335 RS-485 communication retry count
during RS-485 communication from the RS-485 terminals. This function also stops the inverter output if
communication is broken for the period of time set in Pr. 336 RS-485 communication check time interval.
Check the RS-485 terminal wiring.
Perform wiring of the RS-485 terminals properly.
E.AIE
Analog input error
Appears when 30mA or more is input or a voltage (7.5V or more) is input with the terminal 2/4 set to
current input.
Check the setting of Pr. 73 Analog input selection and Pr. 267 Terminal 4 input selection. (Refer to
Instruction Manual (applied).)
Either give a frequency command by current input or set Pr. 73 Analog input selection or Pr. 267 Terminal
4 input selection to voltage input.
E.USB
USB communication error
When the time set in Pr. 548 USB communication check time interval has broken, this function stops the
inverter output.
Check the USB communication cable.
· Check the Pr. 548 USB communication check time interval setting.
· Check the USB communication cable.
· Increase the Pr. 548 USB communication check time interval setting. Or, change the setting to 9999.
(Refer to Instruction Manual (applied))
E.11
Opposite rotation deceleration error
The speed may not decelerate during low speed operation if the rotation direction of the speed
command and the estimated speed differ when the rotation is changing from forward to reverse (or
from reverse to forward) under real sensorless vector control. At this time, the inverter output is
stopped if the rotation direction will not change, causing overload.
· Check that the Pr. 71 Applied motor setting is appropriate.
· Check that offline auto tuning and online auto tuning have been performed.
· Check the setting of Pr. 71 Applied motor.
· Perform offline auto tuning, then online auto tuning.
· Please contact your sales representative.
E.13
Internal circuit error
Appears when an internal circuit error occurred.
Please contact your sales representative.
FR-PU04 Fault 14
FR-PU07 Inrush overheat
FR-PU04 Fault 14
FR-PU07 VFD Comm error
FR-PU04 Fault 14
FR-PU07 Analog in error
FR-PU04 Fault 14
FR-PU07 USB comm error
FR-PU04
Fault 11
FR-PU07
FR-PU04
Fault 13
FR-PU07