5-4
5.1.3 Connection
You need to select devices suitable for your network configuration, referring to the figure shown
below.
Converter
Some computers are not equipped with an RS-485 communications port but with a USB port, so a
USB/RS-485 converter is required to connect them to the RS-485 communications port on the inverter.
It is recommended that insulated converters such as RS-485/RS-485 converters be used for
eliminating electric noise.
Multi-drop branch connector
The RS-485 communications port on the FRENIC-Mini uses an RJ-45 connector. For multi-drop
connection of inverters, therefore, multi-drop branch connectors (MS8-BA-JJJ by SK Koki Co.) are
required.
Cable
For the connection of the remote keypad, use an 8-wire straight cable with an RJ-45 connector.
(Remote keypad extension cable option: CB-5S)
For the connection of other equipment or connection of FRENIC-Mini inverters with each other, use a
cable that has signal wires only. (EIA568-compliant 10BASE-T)
- No converter is required for connection of the remote keypad.
- To connect the FVR-E11S series of general-purpose inverters to the FRENIC-Mini
series, take necessary measures for the difference of the pin assignment between
FVR-E11S and FRENIC-Mini series to avoid a short-circuited failure.
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