Communication connectors and terminals
Installation and wiring
2 - 60
2.7.3 RS-485
terminal
block
Communication operation
The RS-485 terminals enable 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 pro-
gram can run to monitor the inverter or read and write parameters.
Communication can be performed with the Mitsubishi inverter protocol (computer link operation)
and MODBUS RTU protocol.
For the details, refer to page 5-602.
Item
Specification
Conforming standard
EIA-485 (RS-485)
Transmission format
Multidrop link
Communication speed
maximum 115200 bps
Overall length
500 m
Connection cable
Twisted pair cable (4 pairs)
Tab. 2-28:
Specifications of the RS-485 terminal block
I002384E
Fig. 2-43:
RS-485 terminal block
+
-
+ TXD
RXD
-
VCC GND
+
-
+ TXD
RXD
-
VCC GND
RDA1
(RXD1+)
RDB1
(RXD1-)
RDA2
(RXD2+)
RDB2
(RXD2-)
SDA1
(TXD1+)
SDB1
(TXD1-)
SDA2
(TXD2+)
SDB2
(TXD2-)
P5S
(VCC)
SG
(GND)
P5S
(VCC)
SG
(GND)
Terminating resistor switch
Initially set to "OPEN".
Set only the terminating resistor switch of
the remotest inverter to the "100
Ω
" position.
100
Ω
OPEN
Содержание FR-A800
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Страница 30: ...Related manuals Introduction 1 8 ...
Страница 122: ...Connection of stand alone option units Installation and wiring 2 92 ...
Страница 180: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Страница 934: ...Check first when you have a trouble Protective functions 6 46 ...
Страница 954: ...Measurement of main circuit voltages currents and powers Precautions for maintenance and inspection 7 20 ...
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