Communication Operation And Settings - Mitsubishi Electric FR-D720S SC EC Instruction Manual

Parameter
6.18

Communication operation and settings

Purpose
Communication operation from
PU connector
Restrictions on parameter write
through communication
6.18.1 PU connector
Using the PU connector, you can perform communication operation from a personal computer
etc. When the PU connector is connected with a personal, FA or other computer by a commu-
nication cable, a user program can run and monitor the inverter or read and write to parameters.
Pin Number
Tab. 6-48: PU connector (terminal description)
NOTES
Pins No. 2) and 8) provide power to the operation panel or parameter unit. Do not use these
pins for RS485 communication.
Do not connect the PU connector to the computer's LAN board, FAX modem socket or tele-
phone modular connector. The product could be damaged due to differences in electrical
specifications.
FR-D700 SC EC
Parameters that must be set
Initial setting of computer link
communication (PU connector)
Modbus-RTU communication
specification
Communication E²PROM write selection Pr. 342
8) to 1)
Name
1) SG
2)
3) RDA
4) SDB
5) SDA
6) RDB
7) SG
8)
Communication operation and settings
Fig. 6-96:
PU connector pin-outs
Description
Earth (Ground) (connected to terminal 5)
— Operation panel power supply
Inverter receive+
Inverter send−
Inverter send+
Inverter receive−
Earth (Ground) (connected to terminal 5
— Operation panel power supply
Refer to
Section
Pr. 117–Pr. 124 6.18.2
Pr. 117, Pr. 118, 6.18.6
Pr. 120, Pr. 122,
Pr. 343, Pr. 502
Pr. 549
6.18.4
I002002E
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