Mitsubishi Electric FR-A820-00046 Instruction Manual page 11

NOTE
• When installing/removing the plug-in option, hold the sides of the option. Do not press on the parts on the option circuit
board. Stress applied to the parts by pressing, etc. may cause a failure.
• Be careful not to drop mounting screws during the installation or removal of the plug-in option.
• The priorities of vector control compatible plug-in options are defined as follows: FR-A8AL > FR-A8APS > FR-A8APA
> FR-A8APR > FR-A8AP. The vector control compatible plug-in options with lower priority do not function.
• Only one option attached to the option connector with high priority can function at once if more than one option of the
same name are installed together on an inverter. Priority is given to option connectors in descending order (1 to 3),
and options having a lower priority do not function.
• When the inverter cannot recognize the option unit due to improper installation, etc., or when a fault occurs in the
option or encoder, the protective function (E.1 to E.3 or E.OP1 to E.OP3) is activated and the inverter cannot be
operated. The indication shown (when a fault occurs) depends on the connector used (option connector 1 to 3).
Mounted position
Option connector 1
Option connector 2
Option connector 3
• When removing the plug-in option, remove the two screws on either side, and then pull it straight out. Pressure applied
to the option connectors and to the option board may break the option.
Fault indication
INSTALLATION AND WIRING
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