2-22
Chap. 2 MOUNTING AND WIRING THE INVERTER
Table 2.7 Symbols, Names and Functions of the Control Circuit Terminals (Continued)
Classifi-
cation
Symbol Name Functions
[DX+]/
[DX-]/
[SD]
RS-485
communications
port 2
(Terminals on
control PCB)
A communications port transmits data through the RS-485 multipoint protocol
between the inverter and a personal computer or other equipment such as a PLC.
(For setting of the terminating resistor, refer to Section 2.3.6 "Setting up the slide
switches.")
RJ-45
connector
for the
keypad
RS-485
communications
port 1
(Standard RJ-45
connector)
(1) Used to connect the inverter with the keypad. The inverter supplies the power to
the keypad through the pins specified below. The extension cable for remote
operation also uses wires connected to these pins for supplying the keypad power.
(2) Remove the keypad from the standard RJ-45 connector and connect the RS-485
communications cable to control the inverter through the PC or PLC
(Programmable Logic Controller). For setting of the terminating resistor, refer to
Section 2.3.6 "Setting up the slide switches."
Figure 2.18 RJ-45 Connector and its Pin Assignment*
* Pins 1, 2, 7, and 8 are exclusively assigned to power lines for the remote
keypad and multi-function keypad, so do not use those pins for any other
equipment.
Communication
USB
connector
USB port
(On the keypad)
A USB port connector (mini B) that connects an inverter to a personal computer.
FRENIC Loader (software*) running on the computer supports editing the function
codes, transferring them to the inverter, verifying them, test-running an inverter and
monitoring the inverter running status.
*
FRENIC Loader is available as a free download from our website.
On the Fuji website shown above, select "Technical Information" | "Drive Control
Equipment" | "Inverters" | "Software libraries."
Before downloading, you are requested to register as a member (free of charge).
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