Grid-Tied/Backup Mode Switching - Huawei SUN2000 User Manual

SUN2000-(3.8KTL-11.4KTL)-USL0
User Manual
Step 2 Turn off the AC switch between the SUN2000 and the power grid.
Step 3 Turn off the DC switch at the bottom of the SUN2000.
Step 4 If a battery connects to the battery port of the SUN2000, power off the battery.
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6.4 Grid-tied/Backup Mode Switching

After Off-grid mode is enabled on the Home screen of the FusionHome app, the critical load
(BACKUP) route of AC output can be switched between grid-tied and backup modes.
Automatic Switching
Step 1 On the Home screen of the FusionHome app, choose Grid-connect config > Expert >
Feature parameters, set Off-grid mode to Enable and set Grid-tied/Off-grid mode
switching to Automatic switching. The switching time is less than 6s.
Figure 6-1 Automatic switching
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Manual Switching
Step 1 On the Home screen of the FusionHome app, choose Grid-connect config > Expert >
Feature parameters, set Off-grid mode to Enable and set Grid-tied/Off-grid mode
switching to Manual switching.
Issue 01 (2018-05-21)
The default value of Off-grid mode is Disable. The default value of Grid-tied/Off-grid mode
switching is Manual switching.
The default value of Off-grid mode is Disable. The default value of Grid-tied/Off-grid mode
switching is Manual switching.
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