E Rapid Shutdown
● You are advised to periodically check whether the rapid shutdown function is normal.
● If method 3 is selected for rapid shutdown, log in to the FusionSolar app as an installer
user to perform local commissioning, choose Settings > Feature parameters > Dry
contact function, and set Dry contact function to DI rapid shutdown.
If optimizers are
congured for all PV modules, the PV system can perform a rapid
shutdown to decrease the output voltage to below 30 V within 30s.
Perform the following steps to trigger a rapid shutdown:
● Method 1: Turn
o the AC switch between the inverter and the power grid
(disconnect the voltages of all PV strings connected to the inverter under the
AC switch).
● Method 2: Set the DC SWITCH of the inverter to OFF to trigger a rapid
shutdown. The inverter shuts down several minutes later. (Turning
o all
external switches on the DC side of an inverter can trigger a rapid shutdown,
and only the PV strings connected to the inverter is de-energized. Turning
o
only some external switches cannot trigger a rapid shutdown, and the PV
strings may be energized.)
● Method 3: To enable the DI rapid shutdown function, connect a switch to pins
DI and GND of the inverter communications terminal. The switch is turned on
by default. Turn
o the switch to trigger a rapid shutdown. The distance
between the switch and the farthest inverter must be less than or equal to 10
m.
● Method 4: If AFCI is enabled, the inverter automatically performs arc fault
detection and triggers a rapid shutdown when AFCI lock protection is
implemented.
SUN2000-(12K-25K)-MB0 Series
User Manual E Rapid Shutdown
Issue 01 (2023-04-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 131
To Next Page
Loading...
