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AC Load on Inverter
Although the Power Inverter can provide high surge power up to two times the rated
(continuous) output power, some high surge loads like sump-pumps, heavy duty motors etc.
may still trigger the inverter protection system even though the load falls within the power rating
of the inverter. A higher power Inverter is required for these appliances.
Important:
For the SWXFR1230 (120VAC model) unit, a single appliance that requires more
than 20A (>2400W) of AC power, has to be hardwired directly to the AC Output Port 1. Both AC-
Output receptacles are limited to 20A of maximum continuous current.
Estimated Run Time
Following run times are estimates for reference, based on using different battery bank sizes.
Actual run times may vary.
Important:
Power Drain from DC Battery Bank.
When the SWXFR1230 and SWXFR1230i are running in AC Bypass mode, there is a DC
current drain from the battery bank around 700mA. In order to avoid draining the battery bank
down, a battery charger with sufficient power is required to maintain the battery bank voltage.
AC Load
50 W
100 W
200 W
500 W
1000 W
1500 W
2000 W
2500 W
3000 W
Note: N.R. - Not Recommended
5. FEATURE SETTING
To understand more about the unit features, read the following section and follow the instructions
to make changes to the desired setting.
Default Factory Setting:
PS (Power Sources):
AL (Alarm beeper):
Sd (UV shutdown):
Understanding the Unit Settings
The inverter is disabled and the AC-Input shore power passes through the internal
PS0
transfer switch to the AC-Output. When the shore power is disconnected, the unit does
not provide AC backup function, and the display automatically turns off in about 30
seconds. Use this mode when a manual backup start is desired.
Note: For enabling the inverter, the PS0 setting has to be changed to another different one.
PS1
The inverter is enabled and provides AC backup when utility power is not available
The inverter is set to standby mode with power save (load sense) mode ON. The unit
will provide AC backup function only when utility power is not available AND the load
PS2
connected to the output is >10W. Once the unit is ON, it will automatically return to
power save (load sense) mode when the connected AC load drops below 3W (there is
an hysteresis of about 7W)
Note: During the power save "PS2" mode, the Inverter will turn ON every few seconds briefly (for
a few AC cycles) to check if there is a load drawing more than 10W of power. Therefore, any load
>10W will start getting power within a random period in between 0 to 10 sec.
PS3
Not Available
Estimated run time on different 12V Battery Bank Size
60AH
120AH
11 hrs.
22 hrs.
5 hrs.
11.5 hrs.
2.5 hrs.
5 hrs.
49 mins
2 hrs.
15 mins
49 mins
8 mins
27 mins
N.R.
15 mins
N.R.
11 mins
N.R.
N.R.
PS1 - inverter enabled in standby mode with load sense off
AL1 - alarm enabled
SdL - Under voltage shutdown set to low setting
Inverter Setting
Page 13
180AH
240AH
33 hrs.
44 hrs.
17 hrs.
23 hrs.
8 hrs.
11 hrs.
3 hrs.
4 hrs.
1.5 hrs.
2 hrs.
49 mins
1 hr
34 mins
49 mins
25 mins
37 mins
17 mins
27 mins
300AH
55 hrs.
29 hrs.
13.5 hrs.
5 hrs.
2.5 hrs.
1.5 hrs
1 hrs
49 mins
37 mins
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