![Fuji Electric FRENIC-MEGA Instruction Manual Download Page 295](http://html1.mh-extra.com/html/fuji-electric/frenic-mega/frenic-mega_instruction-manual_2341853295.webp)
5-176
F codes
E codes
C codes
P codes
H codes
A codes
b codes
r codes
J codes
d codes
U codes
y codes
Ch
ap
. 5
FUNCTION C
O
DES
5.2.10
y codes (Link Functions)
y01 to y20 RS-485 Communication 1 and 2
Up to two ports of RS-485 communications link are available as listed below.
Port
Route
Function code
Applicable equipment
Port 1
RS-485 communications link
(via the RJ-45 connector prepared for keypad connection)
y01 through y10
Keypad
FRENIC Loader
Host equipment
Port 2
RS-485 communications link
(via terminals DX+, DX- and SD on the control PCB)
y11 through y20
Host equipment
To connect any of the applicable devices, follow the procedures shown below.
(1) Keypad
The keypad allows you to run and monitor the inverter.
It can be used independent of the y code setting.
(2) FRENIC Loader
Connecting your computer running FRENIC Loader to the inverter via RS-485 communication (port 1), you can monitor the
inverter’s running status information, edit function codes, and test-run the inverters.
For the setting of y codes, refer to the descriptions of y01 to y10.
A remote keypad equipped with a USB port is optionally available. To use the FRENIC Loader via the USB port,
simply set the station address (y01) to "1" (factory default).
(3) Host equipment
The inverter can be managed and monitored by connecting host equipment such as a PC and PLC to the inverter. Modbus
RTU* and Fuji general-purpose inverter protocol are available for communications protocols.
* Modbus RTU is a protocol established by Modicon, Inc.
For details, refer to the RS-485 Communication User's Manual.
Station address (y01 for port 1 and y11 for port 2)
y01 or y11 specifies the station address for the RS-485 communications link. The table below lists the protocols and the
station address setting ranges.
Protocol Station
address
Broadcast
address
Modbus RTU protocol
1 to 247
0
FRENIC Loader protocol
1 to 255
None
FUJI general-purpose inverter protocol
1 to 31
99
- If any wrong address beyond the above range is specified, no response is returned since the inverter will be unable to
receive any enquiries except the broadcast message.
- To use FRENIC Loader via the RS-485 communications link (port 1), set the station address that matches the connected
computer.
Summary of Contents for FRENIC-MEGA
Page 36: ...2 6 Unit inch mm Refer to Section 2 3 3 9...
Page 356: ...MEMO...