Delta RPI-H3 Service Manual download pdf (Page 25)

5.4.1 RS-485 Connection

The pin definition of RS-485 is shown as in Table 5-2 and protocol settings are

listed in Table 5-3. The wiring of multi-inverter connection is shown as figure

5-6. .

Table 5-2 Definition of RS485

PIN FUNCTION

1 N/C

2 N/C

3 N/C

4 DATA-

5 DATA+

6 N/C

7 GND

8 12 Vdc

Figure 5-6 Multi-inverter connection illustration

Table 5-3 RS-485 data format

RS-485 Data format

Baud rate 9600

Data bit 8

Stop bit 1

Parity N/A

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 55 56

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Delta RPI-H3 Service Manual Page 25