65
Electrical Connection
DRM communication connection (Applicable to AS/NZS 4777.2)
According to AS/NZS 4777.2, the inverter needs to support the function of demand
response mode (DRM). With the use of an external control box, active or reactive power
regulation can be realized in a timely and fast manner, and the inverter can be operated
stably during the process of regulation.
DRM 0, DRM 1 and DRM 5 are available now.
Pin assignment of DRM
Table 8-10 Pin assignment of DRM
Pin Pin assignment
1 DRM1/5
2 DRM2/6
3 DRM3/7
4 DRM4/8
5 +3.3V
6 DRM0
7 GND
8 GND
DRED connection diagram
DREDDRM terminal
DRM1/5
DRM2/6
DRM3/7
DRM4/8
+3.3V_COM
COM/DRM0
S9
S0
S8
S7
S6
S5
S1
S2
S3
S4
15K
Figure 8-46 DRED connection diagram
Table 8-11 Desciptions of DRM
Mode Pin Requirement
DRM 0 Pin 6
• When S0 is turned on, the inverters shut down.
• When S0 is turned off, the inverters restore grid connection.
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