Delta M50A-260 Installation And Operation Manual page 67

RS485 connection diagram for multiple inverters
If you are using a DC1 data collector from Delta,
also refer to the notes in the next section.
► On the last inverter in the RS485 bus, set the DIP switch of
the RS485 termination resistor to ON.
► If the data logger is located at one end of the RS485 chain,
then also switch on the RS485 termination resistor of the
data logger. If the data logger does not have an integrated
RS485 termination resistor, then also switch on the DIP
switch of the first inverter in the RS485 series, i.e. the one
that is directly connected to the data logger.
► Set a different inverter ID at each inverter during commis-
sioning of the inverters.
Termination resistor = ON
Fig. 7.3: RS485 connection diagram for several inverters
Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14
Termination resistor = OFF
RS485
7 Installation
Connecting the communication card
Termination resistor = OFF
Data logger
67