Generac Power Systems PWRcell M3 User Manual

36 Owner’s Manual for Generac PWRcell Battery
User’s Guide
Battery State of Charge (SoC) Setpoints
There are four user-adjustable setpoints related to the battery state of charge (SoC): Min Absolute, Max Absolute, Min
Reserve, and Max Reserve. These setpoints are adjusted through the inverter control panel.
Adjusting SoC Setpoints
SoC setpoints are adjusted using the inverter control
panel. See the Generac PWRcell Inverter Installation and
Owner’s Manual for additional information regarding
inverter control panel operation.
To adjust SoC setpoints:
1. Use the left and right arrows to access the battery
device page, and press center button to enter the
battery menu.
2. Use the up and down arrows to highlight Mod.
Settings, and press center button to enter the Mod.
Settings menu.
3. Use up and down arrows to highlight the desired
setpoint, and press center button to select.
4. Use up and down arrows to adjust setpoint value.
5. Press center button to deselect the setpoint.
6. Use down arrow to scroll to the bottom of the list
and select Save.
Figure 6-3. SoC Setpoint Screen Example
Table 6-2. Battery State of Charge Setpoints
Setpoint Behavior
Min Absolute
SoC
Shut off point where the battery stops discharging during a utility service interruption. When battery SoC
reaches this value, the battery will go to sleep. The battery will charge again as soon as power is available
on REbus. If the grid is not present and the system was islanding, the system will perform a Power Search
every hour for four minutes. See Power Search.
• Default value is 2%.
• If this setpoint is lowered, the system can provide more energy before it goes to sleep, but the Power
Search reserve will be smaller.
If this setpoint is raised, the system will go to sleep sooner during an outage, but the Power Search
reserve will be larger.
Max Absolute
SoC
Maximum percent the battery can charge to. When battery SoC reaches this value, the battery will not
charge from any source.
• Default value is 100%.
Lowering this setpoint reduces usable capacity and is not recommended.
Min Reserve
SoC
Manages the reserve of power guaranteed to be available for local loads in the event of a a utility service
interruption while operating in Self Supply system mode. When battery SoC drops to this setpoint, the
battery will stop discharging to power local loads, retaining the minimum reserve for backup power in the
event of a utility service interruption.
• Default value is 30%.
• Lowering this setpoint increases battery capacity available for Self Supply, but decreases the capacity
reserved for backup power in the event of a service interruption.
• Raising this setpoint decreases battery capacity available for Self Supply, but increases capacity
reserved for backup power in case of a utility service interruption.
Max Reserve SoC
Manages battery capacity by prioritizing where PV power goes. When battery SoC reaches this value, PV
power is diverted from charging the battery to powering local loads and export to the grid, saving battery
capacity available for charging at a later time. When excess power is not needed by local loads and can
not be exported to the grid, this extra capacity can be used to absorb peak PV to mitigate potential
clipping.
• Default value is 100%.
Changing this value is only recommended for appropriately sized systems.
PLM_Channel:
MinSoCAbs:
MaxSoCAbs:
Cancel Save
1
2.0%
100.0%
MinSoCRsrv: 30.0%
009895

Generac Power Systems PWRcell M3 Specifications

General

Brand	Generac Power Systems
Model	PWRcell M3
Category	Camera Accessories
Language	English