Instruction manual

INSTALLATION AND WIRING
22
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
1) SG
2) P5S
3) RDA
4) SDB
5) SDA
6) RD
B
7) SG
8) P5S
1)
8)
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
PU connector
(Note 1)
Computer
Inverter
Station 1
PU connector
(Note 1)
Inverter
Station 2
Inverter
Station n
RS-485
interface/terminal
10BASE-T
cable (Note 2)
Terminal resistor
Distribution terminal
PU connector
(Note 1)
Use the connector and cables which are available on the market.
Note: 1. Connector: RJ45 connector
Example: 5-554720-3, Nippon AMP Co., Ltd.
2. Cable: Cable conforming to EIA568B (such as 10BASE-T cable)
Example: SGLPEV 0.5mm×4P, Mitsubishi Cable Industries, Ltd.
2