Mitsubishi Electric FR-A820-00046 Instruction Manual page 1068

Causes and corrective actions
Operation panel
indication
Name
Description
Check point
Corrective action
6 - 28
E.OPT
Option fault
Appears when the AC power supply is connected to the terminal R/L1, S/L2, or T/L3
accidentally when a high power factor converter (FR-HC2) or power regeneration common
converter (FR-CV) is connected (when Pr. 30 "Regenerative function selection" = "2").
Appears when torque command by the plug-in option is selected using Pr. 804 "Torque
command source selection" and no plug-in option is mounted. This function is available
under torque control.
Appears when either one of a plug-in option (FR-A8AP or FR-A8APR) or a control terminal
option (FRA8TP) is not installed.
Appears when the switch for manufacturer setting of the plug-in option is changed.
Appears when a communication option is connected while Pr. 296 "Password lock level" = "0
or 100".
Check that the AC power supply is not connected to the terminal R/L1, S/L2, or T/L3 when a
high power factor converter (FR-HC2) or power regeneration common converter (FR-CV) is
connected (when Pr. 30 = "2").
Check that the plug-in option for torque command setting is connected.
Check that the plug-in option (FR-A8AP or FR-A8APR) and the control terminal option
(FR-A8TP) are installed correctly. Check that the settings of Pr. 393 "Orientation selection"
and Pr. 862 "Encoder option selection" are correct.
Check for the password lock with a setting of Pr. 296 = "0, 100".
Check the Pr. 30 setting and wiring.
The inverter may be damaged if the AC power supply is connected to the terminal R/L1, S/L2,
or T/L3 when a high power factor converter is connected. Please contact your sales
representative.
Check for connection of the plug-in option. Check the Pr. 804 setting.
Install the plug-in option (FR-A8AP or FR-A8APR) and the control terminal option (FR-A8TP)
are installed correctly. Set Pr. 393 "Orientation selection" and Pr. 862 "Encoder option
selection" correctly.
Set the switch on the plug-in option, which is for manufacturer setting, back to the initial
setting. (Refer to the Instruction Manual of each option.)
To apply the password lock when installing a communication option, set Pr. 296 ≠ "0, 100".
(Refer to page 5-215.)
Protective functions
FR-LU-08 Option Fault