User manual

SETTINGS
July 2012 / WPC / EN 19
15A in the 24V model. In case of bigger load steps, the remaining power needed will be drawn
from the generator. Also, the AC-IN active filtering function regulates only within the ac-input limit
current range. In case AC-overrun is allowed (by default it is not allowed), it means that the AC-IN
active filtering does not work if more current is drawn from the generator than set at the input
current limit.
How to set these parameters may be a bit of experimenting. The main constraint is the type of load
that is connected to the system:
1. When relatively big load steps are made (e.g. >2kW loads) regularly such as a heavy water cooker
or vacuum cleaner, on top of a base load, it is best to set the input limit of the generator to a higher
value, e.g. 10A or more (but not more than the max the generator can deliver).
2. If only small load steps are made (<1kW) such as chamber lights, computer etc.. with or without a
base load, the input current limit can be set to a lower value to limit the engine speed of the
generator, and set the ‘Overrun AC source current limit’ parameter to Yes.
If lowest operating speed of the generator is desired, two options are available:
1. Set the charging current to 40A or less. When the only load of the generator is the charger, 40A will
make sure that the generator is running constantly at its lowest speed. The default is set to 40A
because the charge current is also limited by the size of the battery, and 40A is allowed with the
minimum set that is usable for the GV-7i.
2. The input limit current can be set to 6A. This causes the generator to operate at its lowest speed,
and if additional power at the output is needed (>1300W), it is Smart boosted by the WPC.
However, if there is a base load of around 1kW or more and heavy loads (e.g. 3kW) are switched on,
this will lead to a sudden load step upon the generator which causes a sudden increase in speed.
Also, to be able to supply use the total power of the system in this case, the ‘Overrun AC source
current limit’ must be set to Yes.
Option 1 is preferred.