Mitsubishi Electric GT1685 Connection Manual page 540

RS485 connection diagram 16)
(For GT1030, GT1020)
* 2
GOT side
(terminal block)
SDA
SDB
RDA
RDB
SG
RSA
RSB
CSA
CSB
*1 Turn ON (100 ) the terminator switch for the most distant FR-E7TR from the GOT.
*2 Set the terminating resistor of GOT side, which will be a terminal, to "330 ".
15 - 30
15. INVERTER CONNECTION
15.3 Connection Diagram
FR-E7TR side
terminal block
Station No.0
RDA
RDB
SDA
SDB
SG
SDB
SDA
RDB
RDA
SG
FR-E7TR side
terminal block
Station No.1
RDA
RDB
SDA
SDB
SG
SDB
SDA
RDB
RDA
SG
FR-E7TR side
* 1
terminal block
Station No.2
RDA
RDB
SDA
SDB
SG
SDB
SDA
RDB
RDA
SG