Mitsubishi Electric FR-E8TR Instruction Manual page 32

NOTE
• Refer to the following figure for branch wiring in the case of half-duplex system.
Use terminal 2 as terminal SG by setting the
terminal 2/SG switch to the SG position to pass
a shielded wire across terminal SG.
analog input of terminal 2 is made invalid.)
In the case of half duplex system,
perform branch wiring.
(across SDA-RDA, across SDB-RDB)
To the computer or
previous inverter
• A program should be created so that transmission is disabled (receiving state) when the computer is not sending and
reception is disabled (sending state) during sending to prevent the computer from receiving its own data.
32
WIRING
U SE
RES PC SD
(Note that
SDA SDB RDA RDB
SDA SDB RDA RDB
DA
DB
SG
SD
SINK
OPEN
100
SOURCE
100
SG
I
4
2
V
SG 2 10 4
SG
DB
DA
Set only the terminating resistor
switch of the remotest inverter to the
"100 Ω" position.
Ω
To the next inverter