7 Electrical Connection
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FIG. 7-15 Illustration of DC Ports
7.6.3 Connecting PV array (DC input)
Danger
Ensure the DC switch and AC breaker both are disconnected from the inverter before connect the PV
arrays.
Never connect PV array positive or negative pole to the ground, it could cause serious damages to the
inverter.
Warning
Improper operation during the wiring process can cause fatal injury to the operator or unrecoverable
damage to the inverter.
Only qualified personnel can perform the wiring work.
7.7 DRED port connections
This inverter is complied with the demand response mode (DRM, refer to AS/NZS 4777.2:2020), and RJ45 socket is
used for as DRED connection.
Connector pin definitions:
PIN
Assignment for inverter capable of
both charging and discharging
Pin assignments front view
1
DRM 5
8 1
RJ45 Socket
RJ45 Plug
1
8
2
DRM 6
3
DRM 7
4
DRM 8
5
RefGen
6
COM / DRM 0
7
/
8
/
Methods for asserting demand response modes:
Mode
RJ45 socket
Asserted by shorting pins
Requirement
DRM 0
5
6
Operate the disconnection device.
DRM 5
1
5
Do not generate power.
DRM 6
2
5
Do not generate at more than 50% of rated power.
DRM 7
3
5
Do not generate at more than 75% of rated power.
And sink reactive power if capable.
DRM 8
4
5
Increase power generation (subject to constraints from other active DRM)
Note: Only DRM 0 command supported.
The DRM connector is made of four components: sealing nut, sealing ring, threaded sleeve, plug.
