Mitsubishi Electric GOT2000 Series Connection Manual page 774

(4) RS-485 connection diagram 4)
* 2
GOT side
SDA
1
SDB
6
RDA
2
RDB
7
SG
5
RSA
3
RSB
8
CSA
4
CSB
9
FG
-
*1
*2
(5) RS-485 connection diagram 5)
*1
*2
14 - 18
14.2 System Configuration
FR-A5NR side
(terminal block)
Station No.0
RDA
RDB
SDA
SDB
SG
RDR
Connect a terminating resistor jumper to RDB and RDR which are assigned in the FR-A5NR of the inverter located farthest from
the GOT.
The terminating resister jumper is packed together with the FR-A5NR.
In the case of GT27, GT25(Except GT2505-V), GT23, set the terminating resistor of GOT side, which will be a terminal, to
"Enable".
In the case of GT2505-V, GT21, set the terminating resistor of GOT side, which will be a terminal, to "330Ω".
➠
1.4.3 Terminating resistors of GOT
* 1
GOT side
RDA
2
RDB
7
SDA
1
SDB
6
RSA
3
RSB
8
CSA
4
CSB
9
SG
5
FG
-
In the case of GT27, GT25(Except GT2505-V), GT23, set the terminating resistor of GOT side, which will be a terminal, to
"Disable".
In the case of GT2505-V, GT21, set the terminating resistor of GOT side, which will be a terminal, to "330Ω".
➠
1.4.3 Terminating resistors of GOT
RDA2, RDB2, SDA2 and SDB2 terminals of the RS-485 terminal block (built into the inverter) cannot be used.
FR-A5NR side
(terminal block)
Station No.1
RDA
RDB
SDA
SDB
SG
RDR
Inverter side
RS485 terminal block
* 2
(built into the inverter) ,
or A8ERS
SDA1(TXD1+)
SDB1(TXD1-)
RDA1(RXD1+)
RDB1(RXD1-)
SG(GND)
FR-A5NR side
(terminal block)
Station No.n
RDA
RDB
SDA
SDB
SG
RDR
* 1