Morningstar Open-Loop Configuration
There may be instances when closed-loop communication is not possible, such as when either the ReadyBMS module or LYNK II Communication Gateway has failed. Whenever possible, use a closed-loop configuration.
When the only option is to use open loop, follow the steps below to reset the MPPT controller and commission it to use open-loop charge settings.
Reset MPPT Controller
From the onboard meter display of the MPPT controller, touch the down arrow to display the Main Menu.
Press the arrow buttons to navigate to Main Menu > Setup > Installer Password
Enter the installer password defined in the GenStar Installation, Operation and Maintenance Manual.Commands > Factory Reset
Reset the MPPT controller.
Set Up Open Loop
Follow the commissioning steps defined in “Setting Closed-loop Configuration on the Morningstar Device”, “Commissioning the GenStar MPPT”, up to step 6.
Set Closed Loop BMS to No.
Set the Battery Charging Profile (low voltage disconnect / reconnect) to 6 LiFePO4-Low.
Set the Battery Load Profile. Set the value in brackets if the application requires a larger contingency reserve on the battery.
48 V / 52.8 (50 V / 52.6 V)
Set RTS Required (Remote Temperature Sensor) to No.
Reboot the MPPT.
Configuration
Power up the GenStar MPPT and confirm it's connected to the network.
Connect to the power conversion device by typing GenStar’s IP address into a web browser. (E.g. http://192.168.1.253, find the IP address in Main Menu > SETTINGS > Network)
The LiveView web interface opens.In the Installer Access Password field, enter the installer password defined in the GenStar Installation, Operation and Maintenance Manual.
INSTALLER SETUP > Charger > Battery Info > Battery Size
Confirm the size is correctly set as the Rated Capacity (Ah) of the battery times the number of batteries. Change the battery size if required.INSTALLER SETUP > Charger > Battery Charge Settings
Configure the battery charging profile. Select Custom and set the values as shown in the tables for the battery.
Battery Charge Settings
48V | AES RACKMOUNT | HELIOS ESS |
|---|---|---|
Absorption Voltage | 55.2 V | |
Absorption Time | 3 hours | |
Float Voltage | 53.6 V | |
Equalization Voltage | Disable | |
Equalization Time | — | |
Equalization Interval | — | |
INSTALLER SETUP > Charger > Battery Charge Settings > Installer Setup
Set the Temperature Compensation Coefficient to Disabled.Reboot the MPPT and start using it with the batteries.
NOTE |
|---|
Rebooting the MPPT is required to update the MPPT with the edited settings. |