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Installation manual
6.2. Start-up
First carry out a general visual inspection and wiring check, then proceed to connect power to the unit while keeping
it switched off, following the guidelines in the instruction manual of the unit.
The tasks outlined for this step must be carried out with the unit door always closed, thus avoiding possible contact
with live parts without NEMA 3R protection.
6.2.1. Start-up
Check that the inverter switches on and gives no alarm except for manual shutdown. Next, check that the variables
on the monitoring menu are consistent; in particular the Vac Vdc levels.
The Vdc reading shows the voltage of the PV array at any given moment.
In the case of units with no grounding, it is possible to check that the PV array is balanced; to do this, click "OK" on
the Vdc display screen and confirm that the displayed PVP and PVN values (indicating the voltage of each PV array
pole to ground) are similar.
In the case of units with grounding of the positive pole, it is possible to check that the PVP value is 0 and that PVN
indicates the PV array voltage; to do this, click "OK" on the Vdc display screen and confirm that the displayed PVP
and PVN values (indicating the voltage of each PV array pole to ground) are as shown.
In the case of units with grounding of the positive pole, it is possible to check that the PVP value is 0 and that PVN
indicates the PV array voltage; to do this, click "OK" on the Vdc display screen and confirm that the displayed PVP
and PVN values (indicating the voltage of each PV array pole to ground) are as shown.
Finally, check that the inverter only displays the manual stop alarm (Alarm 1000H) on the monitoring menu.
Once the tasks described above are performed, you may proceed to start the inverter. Failure to comply with the veri-
fication tasks described above releases Ingeteam from any liability for possible damage to the system or the inverter
itself caused by such failure.
Proceed to start the inverter.
6.2.2. Checking and measurement
Once connected to the unit network, the LED "Start" is lit, verify that no error LED display is on.
Check that the monitoring menu parameters are consistent:
•
The voltage of the PV array should be within the values shown in Section "6.2.1. Start-up".
•
Vac tension shown on the display must fall within operating ranges.
•
The RMS value of currents Iac1, Iac2 and Iac3 displayed should be similar.
•
There are no alarms in the inverter (0000H).
It is always advisable to check the waveform of the current generated in the three phases using an ammeter clamp.
Use the PPE listed in the "Personal Protective Equipment" section (working with voltage) to get this reading.
ABB2000IKI01
Ingeteam
61
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