SMA SC 400HE - Manual (Page 69)

SMA Solar Technology AG 6 External Grid Monitoring Relay
Operating Manual SC4-63HE-BE-BEN103280 69
6.3.7 Undervoltage Monitoring
Parameters for "Three conductor grid": Threshold value for tripping with overvoltage in level 2.
Delay time for threshold value with overvoltage in
level 2
Hysteresis for the overvoltage monitoring. This must be
exceeded before any reconnection is possible.
Undervoltage monitoring ON/OFF
ON = undervoltage monitoring is activated. The
following parameters of this function are displayed.
OFF = Undervoltage monitoring is deactivated. The
following parameters of this function will not be
displayed.
Parameters for "Three conductor grid": Threshold value for tripping at undervoltage in level 1.
Delay time for threshold value at undervoltage in level 1
Parameters for "Three conductor grid": Threshold value for tripping at undervoltage in level 2.