4.7.6 RS485 Port Connection (Optional)
If a 3rd party external device or controller needs to communicate with the inverter,
the RS485 port can be used. Modbus RTU protocol is supported by Haier inverters.
To acquire latest protocol document, please contact Haier local service team or Haier
sales.
NOTE:
Pin definition of the RS485 Port is following
EIA/TIA 568B.
RS485A on Pin 5: Blue/White
RS485B on Pin 4: Blue
RJ45
terminal
1 2 3 4 5 6 7 8
RS485A
RS485B
Assignment for inverters capable
of both charging and discharging
Pin
1
DRM 1/5
2
DRM 2/6
3
DRM 3/7
4
DRM 4/8
5
RefGen
6
7
8
Com/DRM0
V+
V-
Assignment for inverters capable
of both charging and discharging
Pin
DRED means demand response enable device. The AS/NZS 4777.2
required
:2020
inverter need to support demand response mode(DRM).
This function is for inverter that comply with AS/NZS 4777.2
standard.
:2020
A RJ45 terminal is used for DRM connection.
4.7.5.2 For DRED Control Function (For AU and NZ Only)
Table 4.5
NOTE:
Haier hybrid inverter is designed to provide 12V power for DRED.
Figure 4.36 Strip the insulation layer and connect to RJ45 plug
Correspondence between the
cables and the stitches of plug
Pin 1: white and orange
;
Pin 2: orange
Pin
3: white and green；
Pin 4: blue
Pin 5: white and blue
；
Pin 6: green
Pin 7: white and brown
；
Pin 8: brown
1--8
RJ45 plug
RJ45terminal
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
User Manual
4. Installation
25
