Communication connectors and terminals
Installation and wiring
2 - 70
2.7.3
RS-485 terminal block (not for FR-A800-E)
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 5-622.
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. 2-29:
Specifications of the RS-485 terminal block
I002384E
Fig. 2-47:
RS-485 terminal block
NOTE
Upon delivery the FR-A800-E inverter models are not equipped with the 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-A820-00046 (0.4K)
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Страница 144: ...System configuration for Ethernet communication FR A800 E Installation and wiring 2 114 ...
Страница 202: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Страница 1090: ...Check first when you have a trouble Protective functions 6 50 ...
Страница 1110: ...Measurement of main circuit voltages currents and powers Precautions for maintenance and inspection 7 20 ...
Страница 1188: ...EC Declarations of Conformity Appendix A 48 A 7 EC Declarations of Conformity A 7 1 FR A820 FR A840 FR A842 series ...
Страница 1189: ...Appendix EC Declarations of Conformity FR A800 A 49 ...
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