Filter
Top Products
Installation & Programming Manual FX & VFX Series Inverter/Charger System Copyright 2003 OutBack Power Systems, Inc.
900-0027-1 19009 62
nd
Ave NE, Arlington WA 98223 USA
Page 22 Rev 7.2 08/26/05 Tel 360 435 6030 Fax 360 435 6019
FX SYSTEM CONFIGURATION – 3 PHASE FX SYSTEM
3-Phase FX System
The following diagram illustrates a typical 3-phase FX installation using three FX’s. This diagram is for a non-Mobile FX installation
only. Below this diagram are notes for how to change this diagram to accommodate a Mobile installation. This system will
produce 120VAC per phase and 208VAC from phase to phase. At this time there can only be one FX per phase on a 3-phase system.
The AC wiring from the AC source and to the AC loads must handle 50 amps AC or more. All other AC wiring must handle a capacity
of 50 amps AC or more. For a ‘Mobile’ FX system, 30A input breakers should be used due to the maximum AC input pass-through
rating of the Mobile FX’s. This type of FX system can continuously power 6-10.8KW of loads depending on which model is used.
Connecting more power than the continuous rating of the FX may cause breakers to trip or the FX to shut off its AC output. A HUB and
a MATE must be connected to stack these FX’s in 3-phase. The MATE must be connected to adjust any parameters or to display any
meters. A jumper in the HUB must be moved to let the system operate in 3-phase. Check the HUB manual for instructions. Once the
FX has been programmed using the MATE, the MATE can be disconnected. The programming will be saved within the FX’s non-
volatile memory even if the FX is completely shut down.
NOTES: Program the top FX as Master (3PH MASTER) and the two lower FX’s as 3-phase Slaves (3PH SLAVE). See the
STACKING INFORMATION section of the manual for more info. The 3-phase system is a 120/208 VAC Y-connected power system.
The AC source must also be a 120/208 VAC Y-connected 3-phase source.
NON-MOBILE FX NOTES: The AC OUTPUT NEUTRAL IS NOT BONDED TO THE CHASSIS OR THE GROUND TERMINAL of
the FX system. This connection is to be made by the installer either in the AC service entrance or within the AC load distribution panel
of the electrical system. The AC input, AC output and DC terminals are isolated from the metal chassis of the FX. Proper grounding of
these circuits and the chassis of the FX is the responsibility of the installer.
MOBILE FX NOTES: The AC input source to the FX (grid and/or generator) must have an internal neutral-ground connection. On
the above diagram the AC source’s neutral conductor must go directly to the FXs AC NEUTRAL IN terminal or to a separate neutral
busbar that is isolated from the FX’s AC output neutral. The AC output of the FX must go to a separate AC output busbar that is
isolated from the AC input neutral. A bypass mechanism must bypass the AC source’s hot and neutral wires. Proper grounding of the
DC circuit and the chassis of the FX is the responsibility of the installer.