H Ns Protection - Huawei SUN2000-50KTL-ZHM3 User Manual

SUN2000-(50KTL-ZHM3, 50KTL-M3)
User Manual
Connecting the Inverter to the NS Protection Signal Cable
Figure H-1 Connecting cascaded inverters to the NS protection switch
Issue 03 (2022-08-30)
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 switch is connected to GND (pin 13) at one end and to DIN5 (pin 15)
at the other end. The switch is turned off 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 13) and
DIN5 (pin 15). 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.
Copyright © Huawei Technologies Co., Ltd.
H
NS Protection

H NS Protection

99