RS-485 setting 1, RS-485 setting 2
In the RS-485 communication, two systems can be connected.
System Connection method Function code
Equipment that can be
connected
First
system
Via RS-485 communication link (port 1)
(RJ-45 connector to connect keypad)
y01 to y10
Standard keypad
Inverter supporting loader
Host equipments (upper
equipments)
Second
systems
Via RS-485 communications link (port 2)
GA model: RJ-45 (shared with CAN communication)
GB model and C model (for China):
Via digital input terminal blocks (DX+, DX-, SD)
y11 to y20
Host equipments (upper
equipments)
Inverter supporting loader
Overview of the equipments is given below.
(1) Standard keypad
Standard keypad can be connected to operate and monitor the inverter.
Regardless of the y code settings, standard keypad is available.
(2) Inverter supporting loader (FRENIC loader)
Inverter supporting (monitor, function code editing, test operation) can be performed by connecting a
computer with the FRENIC loader installed.
For the y codes setting, refer to the function codes y01 to y10.
(3) Host equipments (upper equipments)
Host equipments (upper equipments) such as PLC and controller can be connected to control and monitor
the inverter. Modbus RTU* protocol or Fuji general-purpose inverter protocol can be selected for
communication.
*: Modbus RTU is a protocol defined by Modicon.
For details, refer to the RS-485 Communication User’s Manual.
■ Station addresses (y01, y11)
Set the station addresses for the RS-485 communication. The setting range depends on the protocol.
Protocol Range Broadcast
Modbus RTU 1 to 247 0
Protocol for loader commands 1 to 255 —
Fuji general-purpose inverter 1 to 31 99
• When specifying a value out of range, no response is returned.
• The settings to use inverter supporting loader should match with the computer’s settings.
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