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the 'Status' indicator going green (indicating that the unit is ON), and finally "PS0"/"PS1" if the
Power Save function is Disabled/Enabled respectively.
• After the 7-sec. starting-up initiation period, the display shows the battery voltage and the output
power (in kW) alternately every 1 sec. Both AC and 5V USB outputs are now available.
• Plug in a small appliance (e.g. a 40W table lamp or a receptacle tester) to the AC outlet, to verify
that AC power is available. If no power is available, make sure the load is over 10W in case the
Power Save function is enabled "PS1" (you may need to wait up to 5 sec.). Otherwise, check the
GFCI outlet is not tripped (on 120V unit), and/or check for any potential error codes on that the
display and refer to the troubleshooting section. The unit is successfully installed and functioning
properly.
Test the GFCI Monthly: (North American 120V unit - SW2410, SW1220 models only)
Perform a monthly test of the AC Output GFCI Socket to ensure the GFCI is functioning properly, as
per the following procedure.
• Turn the unit on and make sure the display shows "PS0" at the initiation period, so having the
Power Save function disabled. Otherwise, proceed to disable that function by changing it from
"PS1" to "PS0" as explained in section 5 of this manual.
• Plug a small AC load (e.g. 40W light bulb) into the AC Output GFCI Socket. Check that the AC
load is ON.
• Push the 'Test' button. You should hear a clicking sound. Check that the AC load is turned off.
• Press the 'RESET' button and check that the AC load is back ON again.
Note: This test has to be performed with the inverter powered ON and in the "PS0" mode; otherwise,
the GFCI cannot be reset. See note in the troubleshooting table in section 6.
4. UNIT OPERATION
Turning the unit ON and OFF
• Press and hold the "Power/Select" button for about 1 second until hearing a beep.
• The display will show either the message 'PS0' or 'PS1' for a few seconds to indicate the power
save setting status ('PS0' = Power Save function disabled, 'PS1' = Power Save function enabled).
See more details in "Understanding the Power Save Function" below in this section, and in "Power
Save Setting" in Section 5.
• Then, the display will show the present battery voltage and output power in kW alternatively, every
1 sec., and the "Status" LED will turn green. The 5V USB and AC output power becomes available
as well.
• Press the "Power/Select" push button anytime to turn the unit either on or off.
LED Display:
'PS0' = Display shows Power Save function setting is disabled (factory default)
'PS1' = Display shows Power Save function setting is enabled (see section 5)
'12.5' = Display shows measured battery voltage (12.5V in this example)
'0.80' = Display shows total output AC power in kW (.8kW = 800W in this example)
'E01' = Display shows error or warning code. See Understanding the Error Code for details
Status Indicator Conditions:
Green: Unit operation is normal
Amber/Green (alternately every 1-sec): Warning is detected. The unit will shut down at any time.
Check "Understanding the Error Code" and "Troubleshooting" sections for details.
Error is detected, and the unit has shut down. Please check "Understanding the Error Code"
Red:
and "Troubleshooting" sections for details.
Understanding the Power Save Function
The unit Power Save function reduces power consumption to conserve battery energy. Every time
the unit is turned on, its display starts showing the power save setting once (either "PS0" or "PS1"),
and then both the battery voltage and the power level alternately every second. When the power save
function is enabled ("PS1"), the AC output of the unit goes ON briefly (for a few milliseconds) about
every 5 seconds to monitor any potential AC load connected to the unit. If the connected load is
>10W, the AC output will remain ON continuously until the AC load is reduced to below 3W (7W
hysteresis). Then, the unit will go back to ON when it senses a >10W AC load connected again.
Understanding the Error Code
Page 8
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