Mitsumi electronic FR-F520-0.75K, 55K Connection to the PU connector, For RS-485 communication

INSTALLATION AND WIRING

2.2.4Connection 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 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

8)	1) SG	5) SDA	2
	2) P5S	6) RDB
	3) RDA	7) SG
1)	4) SDB	8) P5S

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

RS-485 interface/terminal

	Station 1	Station 2		Station n
	Inverter	Inverter		Inverter
	PU connector	PU connector	PU connector
10BASE-T	(Note 1)	(Note 1)		(Note 1)
cable
(Note 2)					Terminal resistor
Distribution terminal

Use the connector and cables, which are available on the market.

Note: 1. Connector: RJ45 connector

Example: 5-554720-3, Tyco Electronics Corporation

2.Cable: Cable conforming to EIA568 (such as 10BASE-T cable)

Example: SGLPEV 0.5mm⋅ 4P (Twisted pair cable, 4 pairs), Mitsubishi Cable Industries, Ltd. (Do not use pins No. 2 and 8 (P5S)).

22