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4. DRED
This application meets the requirements of local Australian grid code (AS/NZS 4777.2) which, among specific requirements for
connection, calls for compatibility with Demand Response Enabling Devices (DRED). The DRED is under control of a local network
operator and allows to put the inverter in one of the Demand Response Modes (DRMs) defined by the standard:
·DRM 0 Operate the disconnection device.
·DRM 1 Do not consume power.
·DRM 2 Do not consume at more than 50% of rated power.
·DRM 3 Do not consume at more than 75% of rated power and source reactive power if capable.
·DRM 4 Increase power consumption (subject to constraints from other active DRMs).
·DRM 5 Do not generate power.
·DRM 6 Do not generate at more than 50% of rated power.
·DRM 7 Do not generate at more than 75% of rated power and sink reactive power if capable.
·DRM 8 Increase power generation (subject to constraints from other active DRMs).
Currently, it is mandatory to respond to DRM0, which allows the network manager to remotely decouple the installation from the
distribution network.
DRM PINS definition:
Pin
1
Function
DRM1/5
5.8 Inverter manipulation
Start inverter after checking all below steps:
·Check that the device is fixed well on the wall.
·Make sure all the PV wiring and the AC wiring are completed.
·Make sure the meter are connected well.
·Make sure the battery is connected correctly.
·Turn on the external AC, DC switch.
·Turn on the DC switch to the 'ON' position.
·Set sysswitch on the screen of the inverter to 'Turn on'
Startup inverter:
·Inverter will start automatically when the PV panel generate enough energy or the battery is
charged.
·Check the status of LED and LCD screen, first LED should be green and the LCD screen should
display the main interface.
·If first LED is not green please check the below:
-All the connections are right.
-All the external disconnect switches are closed.
-The DC switch of the inverter is in the ' ON ' positon.
·Enter the setting interface.
·Set the safety standard as page 28; Set the system time as page 27; PV connection mode as
page 28; Set the work mode as page 27; Set the communication address as page 28; Set the EPS
as page 26; Set WIFI according to the wifi manual;
Shutdown inverter:
2
3
DRM2/6
DRM3/7
DRM4/8
NOTE!
Please set the inverter if it is the first time to start up.
Above steps is for the regular start-up of the inverter. If it is the first time
to start up the inverter, you need to start up the inverter.
CAUTION!
Danger of burns!
Even if the inverter is shut down, it may still be hot and cause burns. Wear
protective gloves before operating the inverter after it cools down.
4
5
6
+3.3V
COM/DRM0
23
7
8
GND
GND
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