Mitsubishi Electric Q26UD(E)HCPU User Manual page 114

(3) Wiring method
(a) A6CON1, A6CON4
Heat shrinkable tube
112
1.
Loosen the four fixing screws on the connector and
remove the screws. Open the connector cover from
the connector side.
2.
Solder the wires and coat them with heat shrinkable
tubes.
3.
Check the terminal layout and install the wires to
the connector.
When the connector is plugged into an I/O module, an
FG wire needs not to be installed.