Huawei SUN2000 M5 Series User Manual

F NS Protection
Connecting the Inverter to the NS Protection Signal Cable
NO TE
● The NS protection function applies to areas in compliance with the VDE4105 standard,
and the grid code needs to be set to VDE-AR-N-4105.
● The NS protection function applies to areas in compliance with the VDE 4105 standard,
and the grid code needs to be set to VDE-AR-N-4105 or SWITZERLAND-NA/EEA:2020-
LV230.
● The NS protection switch is connected to GND (pin 1) at one end and to DIN5 (pin 6) at
the other end. The switch is turned
o by default. When the switch is turned on, NS
protection is triggered. Rapid shutdown and NS protection use the same pins, which are
GND (pin 1) and DIN5 (pin 6). Therefore, you can use only one of the functions.
● The NS protection switch connection is the same for a single inverter and for cascaded
inverters.
● Log in to the FusionSolar App as an installer, choose Me > Device Commissioning, and
connect to the WLAN hotspot of the SUN2000. Log in to the local commissioning
system as an installer user, choose Settings > Feature parameters > Dry contact
function, and set Dry contact function to NS protection.
Figure F-1 Connecting cascaded inverters to the NS protection switch
SUN2000-(12KTL-25KTL)-M5 Series
User Manual F NS Protection
Issue 03 (2023-02-15) Copyright © Huawei Digital Power Technologies Co., Ltd. 106

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)