4-10
Section 4 Installation and Wiring
<How to connect an expansion left side unit>
1) To connect an expansion left side unit, break the plastic part of the expansion cable inlet of the main unit.
• Remove the cover plate on the front of the main unit.
• If a front board is already mounted, remove it once.
• Break the plastic part of the expansion cable inlet on the side of the main unit.
2) Connect the expansion cable connector equipped with the expansion left side unit to the expansion connector (left side) of
the main unit.
3) After the connector is connected, store the remaining cable inside the connector housing of the expansion left side unit.
4) If the front board has been removed, reattach it.
5) Attach the cover plate removed in the step 1).
<How to mount a front board>
1) Remove the cover plate on the front of the main unit.
2) Mount a front board and x it with the supplied screws (Tightening torque: 0.2 N·m)
3) Attach the cover for the front board.
NA0LA-RS5
TX
RX
TX
RX
PORT4 (RS485)
G
PORT3 (RS485)
T
+
T
N
N
+
G
Expansion cable
connector
Break the plastic part of
the expansion cable inlet.
Expansion left side unit