2.3 External CT Connection
The electricity meter should be mounted and connected at the grid transition point (feed-in point) so
that it can measure the grid reference and feed-in power.
1. Loosen the nut, and untangle the single-aperture sealing ring.
2. Install the waterproof component and screw on the waterproof sheath nut.
3. Open the external CT wiring port, the arrow points to the direction of the power grid, put the wire
into the external CT card slot, and buckle the buckle.
NOTE:
External CT should be placed near the power grid.
If CT test pass but inverter still can't achieve export power (power is not controllable or always
0 power output). Please check installation location of the CT.
34
1
2
3
4
Pin
Description
CT positive electrode (White)
RS485-A
CT negative pole (Black)
RS485-B
Figure 23
User Manual
2.4 DRED Port Connections (optional)
DRED means demand response enable device. The AS/NZS 4777.2:2015 required inverter need to
support demand response mode (DRM). This function is for inverter that comply with AS/NZS
4777.2:2015 standard. Inverter is fully comply with all DRM. A 6P terminal is used for DRM
connection.
Please follow below figure to assemble DRM connector.
35
Pin
Description
DRM 1/5
DRM 2/6
DRM 3/7
DRM 4/8
RefGen
Com/DRM 0
1
2
3
4
5
6
Figure 25: DRM connector
User Manual
