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9.2.7 y codes (Link functions)
Mounting an RS-485 communications card (option) on the FRENIC-Mini series enables
performing the operations listed below via the RS-485 communications facility.
(1) Using the remote keypad (option)
The remote keypad (option) allows running inverter and monitoring the running status
information to be monitored from remote locations, such as from the outside of the power
control panel.
(2) FRENIC Loader
Monitoring the running status information, editing function codes and test-running the inverters
can be performed on a Windows-based PC connected to the power system network (including
the inverter/s) by installing FRENIC Loader (software).
Setting data to the y codes, refers to function codes y01 to y10.
(3) Host controller
The inverter can be managed and monitored by connecting a host controller such as a PLC to
the power system network. Available communications protocols are the Modbus RTU
*
and Fuji
general-purpose inverter protocol.
* Modbus RTU is a protocol established by Modicon, Inc.
Refer to the RS-485 Communication User's Manual for details.
y01 to y10 Link Functions for RS-485 Communication
Station Address (y01)
Sets the station address for the communications network. The table below lists the relation
between the data setting range and the protocol.
Protocol Station address Broadcast address
Modbus RTU 1 to 247 0
FRENIC Loader 1 to 255 None
Fuji general-purpose inverter 1 to 31 99
- If the address is set outside of the range specified in the table above, no response will be
returned as the inverter will be unable to receive any enquiries.
- Settings for FRENIC Loader: Set the same address as that specified in the connected PC.
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