INSTALLATION - COMMISSIONING
51
POWER-ONE/ABB INVERTER START VOLTAGE
The start voltage (VStart) is the DC voltage at which the inverter will begin to transform DC to AC.
Inverter Model UNO-2.0-I-OUTD
This inverter has a factory preset start voltage of 200V ± 2V.
The display on this inverter allows the start voltage to be checked and altered as follows:
1.
Press and release the ‘
ESC
’ button.
2.
Press and release the down ‘
↓
’ button until ‘Settings’ is displayed on the screen.
3.
Press and release the ‘
Enter
’ button. ‘
Password
’ and a blinking
0
’ will be displayed on the screen.
4.
Press and release the ‘
Enter
’ button to confirm ‘
0
’.
5.
Repeat Step 4. until password ‘
0000
’ has been entered.
6.
Press and release the down ‘
↓
’ button until ‘VStart’ is displayed on the screen.
7.
Press and release the ‘
Enter
’ button.
8.
Press and release the up ‘
↑
’ or down ‘
↓
’ buttons to change the start voltage to the desired setting.
a. If the string connected to the inverter has 6 modules, set the voltage to 170 V.
b. If the string connected to the inverter has 7 or more modules, set the voltage to 200 V.
9.
Press and release the ‘
Enter
’ button to accept the setting.
10.
Press and release the ‘
ESC
’ button until you exit ‘Settings’ mode.
Inverter Model PVI-3.0 / 4.2 / 5000-TL-OUTD
Each zone input (IN1 and IN2) of this inverter has a nominal factory preset start voltage of 200V ± 2V.
For single string configurations with less than 7 modules, the start voltage for the connected zone input (IN1
or IN2) must be adjusted in order for the system to function correctly and efficiently. The start voltage of the
unused zone input may be left set to the factory preset voltage.
For dual string configurations, and any string with less than 7 modules, the start voltage for the connected
zone input (IN1 and/or IN2) must be adjusted in order for the system to function correctly and efficiently.
The display on this inverter allows the start voltage to be checked and altered as follows:
1.
Press and release the ‘
ESC
’ button.
2.
Press and release the down ‘
↓
’ button until ‘Settings’ is displayed on the screen.
3.
Press and release the ‘
Enter
’ button. ‘Password 0000’ will be displayed on the screen.
4.
Enter password ‘0000’ using the arrow keys.
5.
Press and release the down ‘
↓
’ button until ‘VStart’ is displayed on the screen.
6.
Press and release the ‘
Enter
’ button. ‘VStart1 VStart2’ will be displayed on the screen with an arrow
adjacent to VStart 1.
7.
Press and release the ‘
Enter
’ button to select ‘VStart1’. ‘Set VStart1’ and the current start voltage setting
for the string connected to IN1 will be displayed on the screen.
8.
Press and release the up ‘
↑
’ or down ‘
↓
’ buttons to change the start voltage to the desired setting.
a. If the string connected to IN1 has 5 modules, set the voltage to 140 V.
b. If the string connected to IN1 has 6 modules, set the voltage to 170 V.
c. If the string connected to IN1 has 7 or more modules, set the voltage to 200 V.
