5
2
INSTALLATION
2.1
Pre-installation instructions
Make sure that the input power of the inverter is OFF.
2.2
Installation procedure
CAUTION
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.
CAUTION
•
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 plug-in
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 unit is mounted due to improper installation, etc.,
"
" (option fault) is displayed.
•
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.
•
Take caution not to drop mounting screws during the mounting and removal of the option.
•
Pull the option straight out when removing. Pressure applied to the connector and to the circuit board may
break the option.
REMARKS
•
Because 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.