Outback Power Systems, Inc. VFX3048E Manual

900-0027-2 19009 62

nd

Ave NE, Arlington WA 98223 USA

Page 8 Rev 7.1 06/08/06 Tel 360 435 6030 Fax 360 435 6019

RATINGS

NOMINAL SYSTEM AC VOLTAGE:

This is the AC output voltage produced by an FX system. Each FX produces 230 VAC (volts of AC) but multiple FXs can be

configured in parallel or 3-phase and these configurations may produce different voltages on the AC output legs.

Single Phase 230 VAC at 50 Hz (VAC = volts AC, Hz = Hertz)

Parallel Stacked 230 VAC at 50 Hz on one AC output leg

Three Phase 230 VAC at 50 Hz per AC output leg (limit three)/400 VAC at 50 Hz between AC output legs

RECOMMENDED DC VOLTAGE RANGE:

This is the DC battery voltage range to be used for operating the FX. The last two digits in the model number designate the

nominal DC voltage. Example: FX2024MT – 24V DC Voltage.

12V Systems 11 – 16 VDC (VDC = volts DC)

24V Systems 22 – 32 VDC

48V Systems 44 – 64 VDC

MAXIMUM DC INPUT CURRENT:

This is the maximum DC current that the FX will draw from the battery when starting very large AC loads. It is not used for

sizing the DC disconnect or selecting DC cable gauge. It is used to select the minimum reasonable battery capacity.

12V FX’s 600 ADC per FX (ADC = amps DC)

24V FX’s 300 ADC per FX

48V FX’s 150 ADC per FX

RATED DC INPUT CURRENT:

This is the maximum continuous DC current that the FX will draw from the batteries when inverting.

FX2012E 190 ADC (ADC = amps DC)

FX2024E 95 ADC

FX2348E 55 ADC

VFX2612E 250 ADC

VFX3024E 145 ADC

VFX3048E 70 ADC

AC INPUT OPERATING VOLTAGE RANGE:

This is the recommended AC input voltage range to be supplied to the FX. Voltages outside of this range may damage AC

loads connected to the FX’s AC output terminals.

All “Export” FX’s 200 - 260 VAC (VAC = volts AC)

MAXIMUM AC INPUT CURRENT:

An AC input source connected to the FX supplies power for two separate internal AC circuits – the AC transfer switch and the

battery charging system. The AC transfer switch transfers the AC input power through the FX to the AC loads connected to

the AC output of the FX. The FX’s battery charger will “back off” when the combined amperage of the AC loads and the

battery charger exceeds the programmed AC input current limit (default of 24 AAC). This “Input Limit” can be adjusted so as

not to overload a generator or trip a breaker that is connected to the AC input of the FX. If your generator cannot produce 24

AAC or you are connecting to an AC input source that has a breaker that is rated for less than 30 AAC, please refer to the

programming section to change this setting.

All “Export” FXs 30 AAC per FX (AAC = amps AC)

MAXIMUM CURRENT FOR BATTERY CHARGER:

The FX uses AC current from the AC input source to charge the battery. Due to heat constraints, the FX limits this amount of

current. The maximum and default values for this setting are shown below. Please refer to the programming section to adjust

this setting. The battery charger has an efficiency of 90%. There are other factors like cable losses that may reduce this

efficiency. The maximum DC current that can be produced is also shown below. These maximum DC currents can only be

attained in the “Bulk” charging stage.

FX2012ET AC Max = 6 AAC (Default = 5 AAC) DC Max = 100 ADC

FX2024ET AC Max = 7 AAC (Default = 6 AAC) DC Max = 55 ADC

FX2348ET AC Max = 7 AAC (Default = 6 AAC) DC Max = 35 ADC

VFX2612E AC Max = 8 AAC (Default = 7 AAC) DC Max = 125 ADC

VFX3024E AC Max = 10 AAC (Default = 9 AAC) DC Max = 85 ADC

VFX3048E AC Max = 10 AAC (Default = 9 AAC) DC Max = 45 ADC