Huawei SUN2000 M5 Series User Manual

E Rapid Shutdown
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● 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
congured 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 DC SWITCH to OFF to trigger a rapid shutdown. The inverter
shuts down several minutes later. (Turning
o all external switches on the DC
side of the inverter can trigger a rapid shutdown, which only disconnects
voltages of PV strings connected to the inverter. 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 furthest inverter must be less than or equal to 10
m.
Figure E-1 Connecting cables to a rapid shutdown switch
● Method 4: If AFCI is enabled, the inverter automatically detects arc faults and
implements AFCI lock protection which will trigger a rapid shutdown.
SUN2000-(12KTL-25KTL)-M5 Series
User Manual E Rapid Shutdown
Issue 03 (2023-02-15) Copyright © Huawei Digital Power Technologies Co., Ltd. 104

Huawei SUN2000 M5 Series Specifications

General

Max Efficiency	98.6%
Max Input Voltage	1100 V
MPPT Operating Voltage Range	200 V - 1000 V
Operating Temperature Range	-25°C to +60°C
Communication	RS485, 4G (optional)