
(N) Operation via communication and its settings
541
5
GROUP
N
5.15
(N) Operation via communication and its
settings
5.15.1
Wiring and configuration of PU connector
Using the PU connector enables communication operation from a personal computer, etc.
When the PU connector is connected with a personal, FA or other computer by a communication cable, a user program can
run and monitor the inverter or read and write to parameters.
PU connector pin-outs
NOTE
• Pins No. 2 and 8 provide power to the operation panel or parameter unit. Do not use these pins for RS-485 communication.
• Do not connect the PU connector to the computer's LAN board, FAX modem socket or telephone modular connector. The
product could be damaged due to differences in electrical specifications.
Purpose
Parameter to set
Refer to
page
To start operation via
communication
Initial setting of operation via
communication
P.N000, P.N001,
P.N013, P.N014
Pr.549, Pr.342,
Pr.502, Pr.779
To operate via communication
from PU connector
Initial setting of computer link
communication (PU connector)
P.N020 to
P.N028
Pr.117 to Pr.124
To operate via communication
from RS-485 terminals
Initial setting of computer link
communication (RS-485 terminals)
P.N030 to
P.N038
Pr.331 to
Pr.337, Pr.341
MODBUS RTU communication
specification
P.N002, P.N030,
P.N031, P.N034,
P.N080,
Pr.539, Pr.331,
Pr.332, Pr.334,
Pr.343,
To Communicate using USB
(FR Configurator2)
USB communication
P.N040, P.N041
Pr.547, Pr.548
To connect a GOT
GOT automatic recognition
P.N020, P.N030
Pr.117, Pr.331
To back up the data of parameter
settings and PLC function to the
GOT
Backup/restore
P.N110, P.N111
Pr.434, Pr.435
Pin number
Name
Description
1
SG
Earth (ground) (connected to terminal 5)
2
―
Operation panel power supply
3
RDA
Inverter
4
SDB
Inverter send-
5
SDA
Inverter send+
6
RDB
Inverter receive-
7
SG
Earth (ground) (connected to terminal 5)
8
―
Operation panel power supply
Inverter
(Receptacle side)
Front view
8
1
to
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