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Control Circuit
1.7.5 RS-485 Connector
1.7.6 Connection of the parameter unit (FR-PU04)
Use the FR-CB2 parameter unit connection cable.
<RS-485 connector pin layout>
View A of the inverter (receptacle
side)
CAUTION
1. Do not plug the connector to a computer LAN board, fax modem socket,
telephone modular connector, etc. As they are different in electrical
specifications, the inverter may be damaged.
2. Pins 2 and 8 (P5S) are provided for the parameter unit power supply. Do not
use them for any other purpose or when making parallel connection by RS-
485 communication.
3. Refer to page 79 for the communication parameters.
REMARKS
•The PU connector (PS-485) automatically recognizes whether the FR-PU04 or RS-485
communication is connected.
•Refer to page 38 for wiring of the inverter and computer using user program for RS-485
communication.
•Refer to page 35 for wiring of the inverter and personal computer using GX Developer for RS-
485 communication.
REMARKS
Refer to page 93 for the parameters related to parameter unit setting.
8) to 1)
1) SG
2) P5S
3) RDA
4) SDB
5) SDA
6) RDB
7) SG
8) P5S
View A
View A
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