Set Up The Insulation Monitoring Device; Set-Up The Current Transducers (Option +G417) For All Dc Inputs; Hints On Using The Assistant Control Panel; Parameter Settings Before The First Start - ABB PVS800-57B Maintenance Manual

54 Start-up and operation
Make sure that there is sufficient light for the inverter to be able to feed power to the AC power system
(grid).
There must be enough light so that the solar generator is able to feed power to the inverter. This allows
you to make sure that the inverter operates correctly. You can set the parameter during the dark hours.
You can do a test of the inverter modulation without power from the photovoltaic arrays.
Make sure that the polarity and voltage of each connected DC solar string is correct:
1. Remove the inverter DC fuses.
2. Measure that the plus pole is connected to the plus terminal.
3. Measure that the minus pole is connected to the minus terminal.
4. Measure that the voltage is correct.
5. Put the DC fuses back into place.
Make a record/document of this polarity and voltage test.
Make sure that the open circuit DC voltage from the solar generator is in the correct range for the
inverter (eg. 600...900 V DC).
You can make an estimate of the expected DC voltage: Use the open circuit voltage of the solar
modules and the number of modules in a string.


Set up the insulation monitoring device

Make sure that there is only one insulation monitoring for the inverter in the same galvanically
connected IT system.
Make sure that the settings of the insulation monitoring device suit the installation and obey the local
regulations. The trip limit is adjusted to 30 kohm at the factory. Refer to the PVS800-57B central
inverters firmware manual (3AXD50000048332 [EN]).
More information:
• Circuit diagrams delivered with the inverter.


Set-up the current transducers (option +G417) for all DC inputs

Set up the DC input current monitoring and adjust the monitoring settings.
Refer to the PVS800-57B central inverters firmware manual (3AXD50000048332 [EN]).


Hints on using the assistant control panel

The two commands at the bottom of the display (in the figure on the right,
Options and Menu), show the functions of the two softkeys
and located below the display.
The commands assigned to the softkeys vary depending on the context.
Use keys , , and
depending on the active view.
Key shows a context-sensitive help page.
?
For more information, see ACS-AP-x assistant control panels user's
manual (3AUA0000085685 [English]).


Parameter settings before the first start

Make the parameter settings needed before the first start according to the firmware manual.
Refer to the start-up section of the firmware manual.


First start

Measure and record the DC voltage from the solar generator.
The expected and measured DC voltages should be roughly equal.
Set the auxiliary power to on. Measure the auxiliary power level is correct before switching on the
auxiliary circuit breakers of the auxiliary circuit one by one.
The control boards and the control panel should "wake up". If there are no active faults, the inverter is in
the stand-by mode.
There may be faults and warnings on the display. They are reset during the next steps.
to move the cursor and/or change values