Rapid Shutdown - Huawei MERC Smart PV Optimizer User Manual

MERC Smart PV Optimizer
User Manual
Figure 3-3 Detect optimizer disconnection
●

3.3 Rapid Shutdown

When the output is disconnected or the inverter shuts down, the optimizer can
adjust the module output voltage to a safe range to ensure the safety of the
construction and O&M personnel as well as firefighters.
If optimizers are configured for all PV modules, the PV system can perform a rapid
shutdown to decrease the output voltage to below 120 V within 15s and to below
30 V within 30s.
Perform the following steps to trigger a rapid shutdown:
Issue 05 (2023-03-31)
Log in to https://intl.fusionsolar.huawei.com to access the WebUI of the
FusionSolar Smart PV Management System. On the Home page, click the
plant name to access the plant page. Choose Layout, tap Disconnection
detection to check optimizer disconnection, and rectify the fault based on the
result.
Figure 3-4 Detect optimizer disconnection
Copyright © Huawei Digital Power Technologies Co., Ltd.
3 System Maintenance
22