August 3, 2019 25
o Power source priority is as follows:
1. Solar Panels
2. Batteries (until programable % discharge is reached)
3. Grid (can control when Grid charges)
• Off-Grid (powering loads)
o This mode does not need to be programmed, Sol-Ark 8K will automatically operate in Off-Grid Mode in
the absence of the grid.
o Power source priority is as follows:
1. Solar Panels
2. Batteries
3. Generator
Backup Generator Setup:
• Portable Generators (typically less than 10kW)
o Connect to the generator output to the generator input breakers in the Sol-Ark 8K user panel.
o Main Menu → System Settings → Battery Setup → Charge → Gen charge (only for Gen breakers)
• Standby Generators
o Usually large generators have a whole home transfer switch that feeds the home. We suggest not using
the generator input breakers in the Sol-Ark but your normal home wiring to distribute the Generator’s
power (through your existing Gen transfer switch).
o If off grid, connect the output of the Generator directly to the Grid input on the Sol-Ark 8K. It can then
treat the generator as if it were the grid.
o Under setup for Grid/Sell Control, select General Standard and “GEN connect to Grid Input”. Then go to
Grid/Grid input to widen the input frequency range to 53-65Hz to work with any frequency generator.
o Main Menu → System Settings → Battery Setup → Charge → Grid charge (only for Grid breakers)
• Auto Gen Start Signal
o Automatically start compatible backup generators
o The threshold at which gen charging is triggered can be set using the input boxes above the checkbox.
o Main Menu → System Settings → Battery Setup → Charge → Gen or Grid charge (%Batt or V)
Sensors:
• Limiter Sensors (Current Sensors)
o Placed on the grid side of your home breaker panel and are required to enable limited To Home mode
(see diagrams).
• Battery Temperature Sensor
o Placed on the battery bank and used to adjust charging voltage and capacity calculations
• PV Shutdown signal
o Used to accommodate Rapid Shutdown of PV components and discharge onboard capacitors
• CanBus / RS485
o Used to communicate with Lithium batteries
To Next Page
Loading...
