– If an ESM indicator is red, clear the ESM alarm according to the alarm
handling suggestions.
Step 2 Check that the end-of-charge SOC is greater than the end-of-charge SOC
controlled by the EMS, and that the end-of-discharge SOC is less than the end-of-
discharge SOC controlled by the EMS. If these conditions are not met, the system
may be abnormal. You are advised to retain the default values for the end-of-
charge SOC (100%) and end-of-discharge SOC (5%). The end-of-charge SOC and
end-of-discharge SOC controlled by the EMS shall range from 10% to 90%.
Path of the End-of-Charge/Discharge SOC on the WebUI
End-of-charge SOC: Monitoring > ESS > ESU > ESR > Running Param. >
Charging cuto SOC
End-of-discharge SOC: Monitoring > ESS > ESU > ESR > Running Param. >
Discharge cuto SOC
Step 3 Upgrade the software version.
● For the o-grid PV+ESS system, perform the subsequent commissioning steps
rst to ensure that the UPS has sucient power for completing deployment
commissioning. After the power supply and communication of the system are
normal, upgrade the software version. For details about the ESS software
upgrade, see B ESS Software Upgrade Solution for the O-Grid PV+ESS
System.
● Before upgrading the ESS, check whether an ESU alarm is generated. If yes,
clear the alarm by referring to the alarm handling suggestions and then
perform the upgrade.
● Before upgrading the ESS, ensure that the SOC of the battery rack is greater
than 30%. Otherwise, the delayed upgrade function may be triggered (only
software is loaded without performing the upgrade). If the SOC is less than or
equal to 30%, choose Maintenance > Device Mgmt. > Force Start and click
Starting up to charge the battery rack. After the charging is complete, click
Stop to exit force start.
1. Log in to the Support-E website and search for the latest software versions of
the SmartLogger, PCS, ESS, and SUN2000 in FusionSolar Software
Download.
2. Choose Maintenance > Software Upgrade to check the software versions of
the SmartLogger, PCS, ESS, and SUN2000. If the software version of each
device is the latest version on the Support-E website, go to step 5. Otherwise,
go to the next step.
3. Click Choose File, select the target software package, and click Upload. After
the upload is complete, click Software Upgrade.
Commercial and Industrial Microgrid Energy Storage
Solution
Quick Guide (With Third-Party Microgrid Central
Controller) 4 System Power-On and Commissioning
Issue 04 (2023-12-18) Copyright © Huawei Digital Power Technologies Co., Ltd. 27
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