SMA SC 400HE - Manual (Page 67)

SMA Solar Technology AG 6 External Grid Monitoring Relay
Operating Manual SC4-63HE-BE-BEN103280 67
Changing the password
6.3.4 Entering Parameters
Section 4.9 "Grid Monitoring", page 55 contains information on how the grid is monitored according
to frequency and voltage and which parameters must be set.
After the codeword has been entered successfully, the following menus can be displayed with the
[ Display ↓ ] button:
Voltage Measurement
Voltage converter configuration
Establish password for code level 1
The code level 1 enables the parameter area for the
installer.
Establish password for code level 2
The code level 2 enables the parameter area for the
service personnel.
Voltage measurement
Four-conductor/three-conductor grid; default:
three-conductor grid
Do not alter
Secondary voltage converter
50 V to 125 V; default 100 V
Preset, depending on the device, do not alter.
Primary voltage converter
0.1 kV to 65 kV; default: 20 kV
The primary voltage in kV is set here. This parameter is
used for displaying the system voltage; enter the
voltage level of the medium voltage