INSTALLATION AND WIRING
Make sure that the input power of the inverter is off.
With input power on, do not install or remove the plug-in option. Otherwise, the inverter and
plug-in option may be damaged.
For prevention of damage due to static electricity, touch nearby metal before touching this
product to eliminate static electricity from your body.
Always perform wiring to the main circuit terminals and control circuit terminals before installing the
option. Wiring cannot be performed after installing the option.
When mounting the plug-in option, do not let wires get caught in the plug-in option or the spacer for option
mounting. If a wire gets caught, the inverter and the plug-in option may be damaged.
When the inverter cannot recognize that the option is mounted due to improper installation, etc., "
(option fault) is displayed.
Take care not to drop a mounting screws during mounting and removal.
Pull out the option straight to remove. Otherwise, the connector may be damaged.
Bcause the voltage class, model name and serial number (only voltage class is labeled for FR-E720-5.5KSC (FR-
E720-240SC), FR-E740-5.5KSC (FR-E740-120SC) or higher) are written on the PU cover, replace the PU cover of
the plug-in option with the removed PU cover of the inverter.