Connection To The Pu Connector - Mitsubishi Electric FR-A520-2.2K Instruction Manual

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, Nippon AMP
• Cable: Cable conforming to EIA568 (e.g. 10BASE-T cable)
Example: SGLPEV 0.5mm×4P, MITSUBISHI CABLE INDUSTRIES, LTD.
Note: The maximum wiring length is 20m (65.62 feet).
( 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 unit or parameter unit. Do not use these pins
for RS-485 communication.
<System configuration example>
1) When a computer having a RS-485 interface is used with several inverters
Computer
10BASE-T
RS-485
cable
interface/terminal
Computer
Note: 1. Use the connector and cables which are available on the market.
Connector: RJ45 connector
x
Example: 5-554720-3, Nippon AMP Co., Ltd.
Cable: Cable conforming to EIA568B (such as 10BASE-T cable)
x
Example: SGLPEV 0.5mm×4P, Mitsubishi Cable Industries, Ltd.
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8)
1)
Station 1 Station 2
Inverter Inverter
PU connector PU connector
Distribution terminal
22
INSTALLATION AND WIRING
1) SG 5) SDA
2) P5S 6) RDB
3) RDA 7) SG
4) SDB 8) P5S
Station n
Inverter
PU connector
Terminal resistor jumper