Setup Section - ABB UNO-DM-TL-PLUS-US Product Manual

S
ETUP section
In the SETUP section it's possible to access the following sub-menus:
• Setup DC Side
• Setup AC Side
Setup DC Side
In the Setup DC Side sub-menu you can setup the parameter related
to the Input DC side:
1. VStart1
This parameter is used to set the Vstart activation voltage for the input
channel 1 if they are configured independently (If parallel you will see
only a single "Vstart" parameter for both channels). This voltage imposes
a minimum input voltage on the inverter above which connection to the
grid will be attempted.
2. VStart2
This parameter is used to set the Vstart activation voltage for the input
channel 2 if they are configured independently (If parallel you will see
only a single "Vstart" parameter for both channels). This voltage imposes
a minimum input voltage on the inverter above which connection to the
grid will be attempted.
We advise changing the activation voltage only if really necessary and to set it to the correct
value: the photovoltaic generator sizing tool available on the ABB website will indicate whe-
ther Vstart needs changing and what value to set it to.
3. Input Mode
This settings allows you to set the input configuration mode.
In particular:
• Independent: Independent configuration of the two input channels.
This configuration is set by default.
• Parallel: Parallel configuration of the input channels (single input chan-
nel). Other hardware settings must be set on the inverter to set this
mode. Refer to the paragraph "Parallel channel configuration".
4. UV Protection Time
This section of the menu allows you to set the time for which the in-
verter stays connected to the grid after the input voltage has dropped
below the Under Voltage limit (set at 70% of Vstart).
This value can be set from 1 to 3600 seconds (60 seconds is the default
setting).
- 93 -
7 - Operation