Mitsubishi Electric FR-A7AR Instruction Manual page 12

INSTALLATION AND WIRING (FR-A700/F700 SERIES)
CAUTION
When used with other plug-in options, always connect the FR-A7AR to the connector 1 to prevent malfunction.

Only one type of option per inverter may be used. When two or more options are mounted, priority is in

order of inverter option connectors 1, 2 and 3, the options having lower priority are inoperative.
When the inverter cannot recognize that the option is mounted due to improper

installation, etc., "
A700 series. The errors shown differ according to the mounting positions
(connectors 1, 2, 3).
The FR-F700 series has one connection connector for the plug-in option. When the inverter can not

recognize that the option unit is mounted due to improper installation, etc., "
displayed.
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.
Take care not to drop a hex-head screw for option mounting or mounting screw during mounting and removal.

Pull out the option straight to remove. Otherwise, the connector and to the option circuit board may be

damaged.
7
to " (option alarm) are displayed for the FR-
Mounting Error
Position Display
Connector 1
Connector 2
Connector 3
" (option alarm) is