Outback Power Systems FLEXmax 60 User Manual

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20. Application Notes
OutBack Power System GTFX/GVFX Grid-tie settings
In a GTFX/GVFX Series Inverter/Charger, Charge Controller, HUB, and MATE installation set the Charge
Controller to GT mode in the ADVANCED MENU. GT mode allows the GTFX/GVFX to manage the
Charge Controller  oat setting ensuring the Charge Controller is always keeping the battery above the
sell voltage of the GTFX/GVFX.
Grid-tie applications (non-OutBack inverter/chargers)
When selling electricity back to the grid, keep the inverter Sell/Float voltage below the Charge Control-
ler  oat voltage. Appropriate values: 0.5 Volts di erence for 24V battery system or 1.0 volt di erence for
48V battery systems.
Positive grounded systems
Telcom applications frequently require a positive grounded system. The Charge Controller switches the
POSITIVE PV and battery leads. Keep these separate. If code allows, ground ONLY the battery positive
lead in this case. Do not connect the Charge Controller’s battery plus to the PV plus input while the
Charge Controller is running. The OutBack HUB cannot be used in a positive grounded system.

Outback Power Systems FLEXmax 60 Specifications

General

Brand	Outback Power Systems
Model	FLEXmax 60
Category	Controller
Language	English