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2.2.4 Connection to the PU connector
(1) When connecting the operation panel or parameter unit using a connection cable
<Recommended cable connector>
• Parameter unit connection cable (FR-CB2"") (option) or the following connector and cable.
• Connector: RJ45 connector
Example: 5-554720-3, Tyco Electronics Corporation
• Cable: Cable conforming to EIA568 (e.g. 10BASE-T cable)
Example: SGLPEV-T 0.5mm×4P (Twisted pair cable, 4 pairs), MITSUBISHI CABLE INDUSTRIES, LTD.
Note: The maximum wiring length is 20m (65.62feet).
( 2 ) For RS-485 communication
With the operation panel disconnected, the PU connector can be used for 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 allows the inverter to be run and monitored and the parameter values to be read and written.
<PU connector pin-outs>
Viewed from the inverter (receptacle side) front
Note: 1. Do not connect the PU connector to the computer's LAN board, FAX modem socket or
telephone modular connector. Otherwise, the product may be damaged due to electrical
specification differences.
2. Pins 2) and 8) (P5S) provide power to the operation panel or parameter unit. Do not use these
pins for RS-485 communication.
3. Refer to page 111 for the communication parameters.
<System configuration example>
(1) Connection of a computer to the inverter (one-to-one connection)
Computer
RS-485
Interfase
terminal
8)
1)
Station 0
Inverter
RS-232C
RS-485
connector
cable
RJ-45
connector 2)
10BASE-T cable 1)
22
INSTALLATION AND WIRING
1) SG
5) SDA
2) P5S
6) RDB
3) RDA
7) SG
4) SDB
8) P5S
Station 0
Computer
Inverter
RS-232C
connector
RS-485
Maximum
connector
15m
RS-232C
RS-485
converter
RJ-45 connector 2)
10BASE-T cable 1)
2
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