3-4
3.3 Expansion Method of FPΣ Expansion Unit
The dedicated expansion unit for FPΣ (including intelligent unit) is expanded by connecting to the left
side of the control unit.
Unit expansion is done using the left-side connector for FPΣ expansion and expansion hook on the side
of the unit.
(1) Remove the cover on the left side of the unit so that the internal left-side connector for FPΣ
expansion is exposed.
(2) Raise the expansion hooks on the top and bottom sides of the unit with a screwdriver.
(3) Align the pins and holes in the four corners of the control unit and expansion unit, and insert
the pins into the holes so that there is no gap between the units.
(4) Press down the expansion hooks raised in step 2 to secure the unit.