System Commissioning; Parameter Settings - Huawei Backup Box-B0 Quick Manual

5. Turn on the DC switch (if any) between the PV strings and the inverter.
6. Turn on the DC switch at the bottom of the inverter.
7. Check that the off-grid load power does not exceed the off-grid output power allowed by
the inverter.
8. After ensuring that the load circuit is normal, turn on the AC switch of the Backup Box.
9. Observe the LED indicators on the front of the inverter to check the running status of the
inverter.
Category Status (Blinking Slowly, On for 1s and then Off
for 1s)
Running
indication
Steady green
Steady orange
Blinking orange slowly
Blinking orange slowly
If the off-grid load is overloaded, indicators
Reduce the off-grid load power and manually clear the alarm or until the inverter is recovered.
If the inverter is standby in off-grid mode, check the inverter alarms and rectify the fault.
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System Commissioning

During system deployment, the AC power supply needs to be connected to ensure that the off-
grid/grid-tied switching function of the Backup Box can be verified.
Download and install the latest version of the FusionSolar app by referring
to the quick guide for the corresponding inverter model or the
App Quick Guide
. Register an installer account and create a plant and
owner (skip this step if an account has been created). You can scan the QR
code to obtain the

Parameter Settings

Open the FusionSolar app, log in to intl.fusionsolar.huawei.com using the installer account,
choose My > Device Commissioning, and connect to the WLAN hotspot of the solar inverter.
On the home page, choose Setting > Feature parameters to set the off-grid/grid-tied control
parameters.
Steady green
Steady orange
Off
Blinking orange slowly
FusionSolar App Quick Guide
Definition
N/A
On-grid
Backup
Standby in backup mode
Overload in backup mode
and on the inverter blink orange slowly.
FusionSolar
.
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