Mitsubishi Electric MELSOFT FR Configurator2, Инструкция по эксплуатации

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48
1. OUTLINE
1.4 Connection and parameter setting
1.4.7 Connection of multiple inverters using RS-485
terminals
When inverters have RS-485 terminals, RS-485 terminals are used for connecting multiple inverters with a serial port of a
computer. Up to 32 inverters can be connected. Serial/RS-485 converter (on
page 34 ) is required.

Related parameters for multiple connection using RS-485 terminals or PU
connector
Set the following communication parameters for connection using RS-485 terminals or PU connector of the inverter.
To set parameters or input operation commands, set the following parameters and switch the operation mode as shown in the
following table.
NOTE
• For the details of wiring, refer to the Instruction Manual (Detailed) of the inverter.
• Set 3 s or more (or 9999) in
Pr.122 PU communication check time interval , Pr.336 RS-485 communication check time
interval .
• Set a station number of each inverter in Pr.117 PU communication station number and Pr.331 RS-485 communication
station number for multiple connection. Perform inverter reset after setting the parameter.
- -
RS-232C RS-485
converter
Serial cable
RS-422 / 485
Up to
32 inverters
Personal computer
(FR Configurator2)
Inverter
RS-485 terminal block
Serial port
Inverter
Communication
option
Parameter setting
Operation
mode
Communication parameter Command source parameter
FR-A800
FR-B
FR-B3
FR-B4
FR-F800
FR-A700
FR-B (700)
FR-B3 (700)
FR-F700
FR-F700P
Not connected
Set the station number of each inverter in
Pr.331 RS-485 communication station
number
(for multiple connection)
Pr.336 RS-485 communication check time
interval
≠ "0" (initial value: "0")
Pr.337 RS-485 communication waiting time
setting
= "9999" (initial value)
Pr.550 NET mode operation command
source selection
= "9999" (initial value:
"9999")
NET
Connected
Pr.551 PU mode operation command
source selection
= "1" (initial value:
"9999")
PU
FR-E800
FR-E700
FR-D700
FR-E700EX
Not connected Set the station number of each inverter in
Pr.117 PU communication station number
(for multiple connection).
Pr.122 PU communication check time
interval
≠ "0" (initial value: "0")
Pr.123 PU communication waiting time
setting
= "9999 (initial value)"
Unchanged from the initial value. NET
Connected
Pr.551 PU mode operation command
source selection
= "2" (initial value:
"9999")
PU
FR-CS80
FR-D700
FR-D700-G
—
Set the station number of each inverter in
Pr.117 PU communication station number
(for multiple connection).
Pr.122 PU communication check time
interval
≠ "0" (initial value: "0")
Pr.123 PU communication waiting time
setting
= "9999 (initial value)"
Unchanged from the initial value. NET
Pr.551 PU mode operation command
source selection
= "2" (initial value:
"9999")
PU