Commissioning - ABB UNO-2.0-I-OUTD Product Manual

C
ommissioning
Do not place objects of any kind on the inverter during operation!
Do not touch the heatsink while the inverter is operating!
Some parts may be very hot and cause burns.
b01 b02 b03 b04
b11
NOTE: Before proceeding with
commissioning, make sure you
have carried out all the checks
and verifications indicated in the
section on preliminary checks.
Vin < Vstart
Vin > Vstart
Vgrid OK
b05 b06 b07 b08
b13 b12 b24
The inverter commissioning procedure is as follows:
• Put the DC disconnect switch
arate external disconnect switches (one for DC and the other for AC),
first close the AC disconnect switch and then the DC disconnect switch.
There is no order of priority for opening the disconnect switches.
• When the inverter has power, the first check performed is the one rela-
ting to the input voltage:
- If the DC input voltage is lower than the Vstart voltage (voltage required
to begin the inverter's grid connection) the b14 icon remains off and the
"Waiting for the sun" message is displayed b10.
- If the DC input voltage is higher than the Vstart voltage the b14 icon is
displayed and the inverter goes to the next stage of the controls.
In both cases the voltage levels and input current are displayed in the
b15 and b16 fields.
• The inverter performs a control of grid parameters. The b22 icon, which
represents the grid distribution, can have different statuses:
- Not present, if the mains voltage results as absent.
- flashing, if the mains voltage is present but outside the parameters dic-
tated by the standard of the country of installation.
- Turns on, if the mains voltage is present and within the parameters dic-
tated by the standard of the country of installation. In this condition, the
inverter starts the sequence of grid connection.
This verification can take several minutes (from a minimum of 30 se-
conds up to several minutes), depending on grid conditions and settings
relative to the standard of the country
- 62 -
b09 b10
DC
AC
b14 b15 b16
in ON position. If there are two sep-
07
7 - Operation
b23
b19
b22
b21
b20
b17 b18