Mitsubishi Electric FR-A8AX Instruction Manual page 10

NOTE
• When mounting/removing an option, hold the sides of the circuit board. Do not press on the parts on the circuit board.
Stress applied to the parts by pressing, etc. may cause a failure.
• Caution must be taken of mounting screws falling off when removing and mounting the plug-in option.
• Only one type of option per inverter may be used. When multiple options are mounted, priority is given to option
connectors 1, 2 and 3 on the inverter in this order, and options having a lower priority do not function. (For the
positions of the option connectors 1 to 3, refer to
• When the inverter cannot recognize that the option unit is mounted due to improper installation, etc., the protective
function (E.1 to E.3) is displayed. A different indication will appear according to the mounted position (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 the left and right, then pull it straight out. Pressure
applied to the connector and to the option board may break the option.
10
INSTALLATION AND WIRING
Fault indication
page 9.)