Commissioning
32
Installation and Owner’s Manual for Generac PWRCell Inverter
Configuring with PWRcell Batteries
Systems with the PWRcell Battery must have the “EnaIs
-
landing” setpoint set to ‘on’ in order to enter Island Mode
for backup. This setpoint is accessible through the Mod.
Settings menu via the inverter device page.
Verify the PWRcell Inverter protected loads disconnect is
in the ON position.
Verify Battery Disconnect Switch on the PWRcell Battery
is ON.
NOTE:
Reference the PWRcell Battery Installation and
Owner’s Manual for advanced battery settings.
Set Export Override (optional)
NOTE:
This feature requires CTs to be properly installed
and calibrated prior to use. For more information on CT
calibration, see
NOTE:
This feature is NOT intended to serve as a
means of achieving compliance to utility interconnection
requirements. To set for zero export compliance or export
limiting, see
Set Import / Export Compliance
.
This feature is suitable as a simple and easy option for
systems pending permission to operate (PTO) where the
utility does not specify a requirement for the system to be
powered-off or otherwise disabled pending approval.
When enabled, Export Override allows the user to restrict
inverter export such that excess power is not sent back to
the grid. The system limits solar power generation to
match power consumption measured by the PWRcell
CTs. Using the Inverter control panel, a user can find this
feature on the “Mod. Settings” sub-menu for the inverter.
Set for Peak Shaving (optional)
The TargMaxImprtP and TargMinImprtP setpoints allow
the building to deliberately import power from the grid
within certain limits. This is useful for specialized
applications, such as avoiding peak demand charges.
These setpoints are relevant to Self Supply mode only,
and are only used for specific applications. See
Set for AC Coupled PV (optional)
IMPORTANT NOTE:
This feature requires the inverter
firmware version to be 13760 or greater. Refer to
-
ture requires the PWRcell Battery firmware version to be
12980 or greater. More information on requesting a firm
-
ware update can be found online at
erac.com/resources-and-tools/ce-installer-
resources/installation-resources
.
NOTE:
For more information about the AC Coupled PV
configuration and equipment compatibility, refer to
.
NOTE:
For more information on inverter settings, refer to
1.
At the home screen, press the center button and
select Self Supply or Priority Backup system
modes for operation with AC Coupled PV.
2.
From the home screen, use the right arrow key to
navigate to the inverter device page.
3.
Push the center button to access the inverter
device main menu.
4.
Navigate to “Mod. Settings” using the down arrow
key and use the center button to select.
5.
Use the down arrow key to navigate to the setting
'NumTranSwtchs.'
6.
Select the setting using the center button.
7.
Use the up / down arrow keys to change the value.
For AC Coupled PV, change this value to '1'.
Table 6-2. Self Supply Setpoints
Setpoint
Description
Default
Units
TargMaxImprtP
Target Maximum Import Power
•
Maximum power imported from the grid at any point.
•
When the overall building load exceeds this setpoint, the inverter will supply
additional power from the battery and solar array to keep grid import power
below this level.
•
This maximum is not guaranteed. If insufficient battery and solar power is
available to cover the load, then the grid will supply the additional power.
0
W
TargMinImprtP
Target Minimum Import Power
•
Use this setpoint to charge the battery from the grid.
•
If the overall building load is less than this setpoint, the inverter will import
power to the battery to keep the grid import power up to the setpoint.
•
If the building load is above the setpoint, the inverter will stop importing
additional power to charge the battery.
•
This minimum is not guaranteed. Once the battery is full, grid import power
may fall below this level.
0
W
Summary of Contents for PWRcell X11402
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