Mitsubishi MELFA SQ Series Standard Specifications Manual page 77

(2) Connection of the key switch interface
Terminal
The connection method of the electric wire
1) Push the terminal opening-and-closing lever with the minus driver etc., and open the
terminal.
2) Insert the electric wire in the terminal. Insert certainly to the back.
3) Detach the terminal opening-and-closing lever.
The electric wire is connected.
Connect the electric wire.
Peel sheathing about 10mm.
Terminal opening-and-closing lever
Push the lever by the minus driver
(recommendation size: 2.0-3.0mm) etc.,
and insert the electric wire in the
terminal.
Key switch interface (Only for the DU1A-772 drive unit)
KEY11
KEY12
KEY21
KEY22
3 Controller