Mitsubishi Electric MELSEC iQ-R Series Configuration Manual page 106

When the base unit mounted modules is installed on the control panel, install the base unit, without a module
on the right end slot, on the control panel. The removal method is the same.
Installing the main base unit, without the power supply module on the left end slot, on the control panel is
recommended. The mounting screws can be tightened by inserting a screwdriver acock. The removal method
is the same.
5 INSTALLATION AND WIRING
104
5.3 Installing Base Unit to Control Panel