RedEarth Solar Blackmax Energy Inverter User Guide

: August 19, 2024
: RedEarth

Table of Contents

RedEarth Solar Blackmax Energy Inverter
Product Information
Product Usage Instructions
Setting the Correct Grid Code
Contact Information
Read User Manual Online (PDF format)
Download This Manual (PDF format)

RedEarth Solar Blackmax Energy Inverter

Product Information

Product Name: RedEarth Inverter
Country of Use: Australia
Compliance: AS4777.2 Grid Codes

Product Usage Instructions

Setting the Correct Grid Code:

Select Grid Setting on the inverter.
Select the Grid Mode (White Box) and use the physical buttons below the screen to adjust your grid code.
Ensure grid type, voltage, and frequency match the installation region.
Touch the tick in the bottom right corner to save settings.
If needed, adjust default setpoints for Volt-Watt and Volt-Var settings by cycling through the menu.

Don’t forget, we’re here to help!
If you have any questions or need further assistance, please reach out to our support team. Thank you for choosing RedEarth, and we look forward to powering your energy independence!

FAQ:

Q: What should I do if I am unsure about the grid code setting?
A: If you are unsure about the grid code setting, please contact our support team for guidance and assistance.
Q: Can I change the default setpoints for Volt-Watt and Volt-Var settings?
A: Yes, it is possible to adjust the default setpoints for Volt-Watt and Volt-Var settings by cycling through the menu on the inverter.

Setting the Correct Grid Code

Since 2021 all inverters in Australia must be conﬁgured to follow one of Australia’s AS4777.2 Grid Codes.

Setpoints are deﬁned by region of installation, as per the following categories:

Australia A: For large interconnected power systems, e.g. all Australian networks other than those speciﬁed below
Australia B: For small interconnected power systems, e.g. Western Power
Australia C: For isolated or remote power systems e.g. Horizon Power and TasNetworks
New Zealand: All systems in New Zealand

To adjust your system Grid Code

Navigate to the settings page by pressing the ‘cog’ symbol in the top right corner of the touch screen.
Select “Grid Setting”
Select the Grid Mode (White Box) and use the physical buttons below the screen to adjust your grid code
Ensure your grid type, voltage, and frequency also match.
Touch the tick in the bottom right corner to save.

While Volt-Watt and Volt-Var settings don’t generally need to be changed, it is possible to cycle through the menu and adjust the default setpoints if required.

Normal Grid Connection: This refers to the permissible range of grid voltage and frequency during the initial connection of the inverter to the grid.
Normal Ramp Rate: This signiﬁes the rate at which power ramps up during startup.
Reconnection After Trip: This denotes the allowable grid voltage/frequency range for the inverter to reconnect to the grid following a trip from the grid.
Reconnection Ramp Rate: This is the rate at which power is restored upon reconnection.
Reconnection Time: The duration during which the inverter waits before reconnecting to the grid.
Power Factor (PF): A parameter used for adjusting inverter reactive power.
Frequency-Watt (FW): This type of inverter can adapt its output power in response to changes in grid frequency.
Droop Factor (Droop f): Expressed as a percentage of nominal power per Hertz (Hz). For instance, if speciﬁed as “Start freq f > 50.2Hz, Stop freq f < 50.2, Droop f = 40% PE/Hz,” when the grid frequency reaches 50.2Hz, the inverter will reduce its active power at a rate of 40% per Hz. Subsequently, when the grid frequency falls below 50.2Hz, the inverter ceases decreasing its output power.
Local Grid Code: For precise setup values, adherence to the guidelines outlined in the local grid code is recommended.
V(W): This parameter is utilized to regulate the inverter’s active power under the speciﬁed grid voltage.
V(Q): This parameter is utilized to adjust the inverter’s reactive power based on the set grid voltage. This function enables the adjustment of both active and reactive power outputs of the inverter in response to changes in grid voltage.
Example Scenario 1: If V2=110% and P2=20%, when the grid voltage reaches 110% of the rated grid voltage, the inverter’s active power output will decrease to 20% of the rated power.
Example Scenario 2: If V1=90% and Q1=44%, when the grid voltage reaches 90% of the rated grid voltage, the inverter’s output power will be adjusted to output 44% of reactive power.
Lock-in/Pn 5%: When the inverter’s active power is below 5% of the rated power, the VQ mode will not be activated.
Lock-out/Pn 20%: If the inverter’s active power increases from 5% to 20% of the rated power, the VQ mode will be reactivated.
P(PF): This feature is employed to regulate the inverter’s power factor (PF) by the speciﬁed active power.
Local Grid Code: Detailed setup values should be in alignment with the guidelines outlined in the local grid code.
Lock-in/Pn 50%: If the inverter’s output active power falls below 50% of the rated power, it will not activate the P(PF) mode.
Lock-out/Pn 50%: When the inverter’s output active power exceeds 50% of the rated power, it will enter the P(PF) mode.
Note: The P(PF) mode will only take effect when the grid voltage equals or exceeds 1.05 times the rated grid voltage.

Contact Information

Don’t forget, we’re here to help
If you have any questions or need further assistance, please don’t hesitate to reach out to our support team. Thank you for choosing RedEarth, and we look forward to powering your energy independence!
Warm regards,
The RedEarth Team