INSTALLATION AND WIRING
16
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.
<PU connector pin-outs>
Viewed from the inverter (receptacle side) front
SG
P5S
RDA
SDB
SDA
RDB
SG
P5S
Note: 1. Do not connect the PU connector to the computer’s LAN board, FAX modem sock et 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.
Use the connector and cable as detailed below.
• 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.
When the communication board of the personal computer has the RS-232C specifications, prepare an
RS-485, RS-232C converter.
Example of converter.
1) Model: FA-T-RS40
Converter
Industrial Systems Division Mitsubishi Electric Engineering Co., Ltd.
2) Model: DINV-485CAB
Interface built-in cable
Dia Trend Co., Ltd.