USERS | SP PRO Operation
Doc #OI0003 Part #004122 Rev 04 2010
|
25
• The generator has not been run for the number of days specified in the Generator Exercise setting.
• Backup Schedules are set to run the generator in case of SP PRO shutdown to power vital equipment.
Generator Control based on SoC
The SP PRO may be configured to start the generator to charge the battery based on the battery State of
Charge (SoC). This method of generator control is recommended to efficiently and reliably maintain the battery
charge.
The battery SoC is estimated by the SP PRO and displayed as a percentage of the battery capacity and
represented throughout this manual and in the menu system by the symbol SoC%.
A daily profile of preferred generator start times and battery charge levels may be configured to allow the
SP PRO to automatically start and stop the generator. The profile provides the flexibility to accommodate
for individual site characteristics such as renewable availability, usage patterns and generator noise
considerations.
Several SP PRO settings are configured to divide the day into four periods:
NIGHT ASSIST:
This is a period starting, typically about 5 or 6pm. During this period the generator
is started if the battery is discharged below Start SoC% and will cease at Stop
SoC%.
SOC NORMAL:
This setting applies at all times. If SoC falls below Start SoC% at any time the
generator will be started and will charge until Stop SoC% or for Generator Min
Runtime if Stop SoC% is reached before the minimum runtime has elapsed.
RENEWABLE ASSIST:
If your system has been designed in such a fashion that the input from your
renewable sources (solar, wind etc) will always be lower than your usual daily
power usage it is possible to start the day with a generator run period that will
make up the shortfall. This ancillary charge is determined by Start SoC% and Stop
SoC%.
RENEWABLE PREFERRED:
If, due to inclement weather, the input from your renewable sources is lower than
expected the generator will start at Start SoC% and will cease at Stop SoC%.
Once the charging is completed the generator will stop unless the load or
schedules keep it running. The starting time for each of the periods can be set
via the Generator Auto Run menus within the AC Source tab. The battery state of
charge levels (Start SoC% and Stop SoC%.) are set by the installer at the time of
installation.
If a Generator Lockout period is used the generator will still start if the generator
lockout override On Low SoC limit is reached.
Generator Control based on Battery Voltage
The SP PRO will start the generator based on battery voltage. Normally these limits are not met as the SoC
control will have already started the generator unless SoC control has been disabled.
The generator will start at any time should any of the pre-configured limits be met.
