Mitsubishi Electric FR-D720S SC EC, Instruction Manual

Page: 343 / 512

Parameter Communication operation and settings
FR-D700 SC EC 6 - 193
6.18 Communication operation and settings
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.
Purpose Parameters that must be set
Refer to
Section
Communication operation from
PU connector Initial setting of computer link
communication (PU connector) Pr. 117–Pr. 124 6.18.2
Modbus-RTU communication
specification Pr. 117, Pr. 118,
Pr. 120, Pr. 122,
Pr. 343, Pr. 502
Pr. 549 6.18.6
Restrictions on parameter write
through communication Communication E²PROM write selection Pr. 342 6.18.4
Fig. 6-96:
PU connector pin-outs
I002002E
Pin Number Name Description
1) SG Earth (Ground) (connected to terminal 5)
2) — Operation panel power supply
3) RDA Inverter
4) SDB Inverter send
−
5) SDA Inverter send+
6) RDB Inverter receive
−
7) SG Earth (Ground) (connected to terminal 5
8) — Operation panel power supply
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.
8) to 1)