Delta M70A-260 Installation And Operation Manual page 70

7 Installation
Connecting the communication card
RS485 connection diagram for a DC1 data collector with
multiple inverters
The DC1 data collector from Delta does not have an integrated
RS485 termination resistor. Depending on where the DC1 is
located in the RS485 bus, an external RS485 termination resistor
may need to be connected, see Fig. 7.4, p. 70.
3
120Ω
4
Termination resistor = ON
Fig. 7.4: RS485 connection diagram for a DC1 data collector
with multiple inverters
70
Termination resistor = OFF
3
4
Termination resistor = OFF
Termination resistor = OFF
Installation and operation manual M70A_260 Flex RPI703M26000 EU V1.1 EN 2022-08-02
Termination resistor = ON
Termination resistor = ON