Terminal Block Specifications - Fuji Electric FRENIC-AQUA series User Manual

2.1.2

Terminal block specifications

The terminal for RS-485 communications port 2 is provided in the control circuit terminals of the
inverter. The table below shows the code, name, and function of each terminal. These terminals
can be easily connected with the multi-drop circuit.
Terminal
symbol
RS-485 communications data (+) terminal
DX+
RS-485 communications data (-) terminal
DX-
Communications cable shield terminal
SD
Internal Terminating resistor switching
switch
* For details of the terminating resistor insertion switch, see Section 2.2.2 "Connection notes, [2]
About terminating resistors."
Terminal name
--
--
This is the terminal for relaying the shield of the
shielded cable, insulated from other circuits.
A terminating resistor of 112Ω is incorporated.
Connection/release is switched by this switch*.
2-4
Function description