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2015 Sensata Technologies
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2.0 Installation
2.6
Testing the Inverter
Before proceeding, you must
fi
rst test whether the inverter was successfully
installed. Use the functional test below to ensure the inverter is functioning
properly.
2.6.1 Inverter Functional Test
After all electrical connections
to the inverter, batteries, AC source, and loads
(using a sub-panel)
have been completed, follow these steps to test the
installation and the inverter’s operation.
1. Check the battery voltage and polarity before connecting the batteries to
the inverter. Use a multimeter to verify 10.5 to 15.5 VDC at the batteries’
positive and negative terminals.
2. Apply battery power to the inverter by switching the DC disconnect on (or
close the DC circuit-breaker)—the inverter will remain off.
3. Prior to turning on the inverter, make sure all connected loads (e.g.,
appliances) are switched off or disconnected from the AC outlets.
4. Press and hold the Power button until a beep sound is heard (about 1
second)—to turn the inverter on. Verify that the inverter’s revision and version
numbers of the inverter as well as the measured battery voltage are shown
on the display, and the Status light comes on (amber). This indicates the unit
is in Inverter mode—running from battery power.
5. Check the output voltage of the inverter by connecting a multimeter to the
outlets powered by the inverter. Verify the voltage is from 104 to 127 VAC.
6. Plug a small AC load (e.g., 40W light bulb) into the GFCI’s outlet. Turn it on
and verify it comes on. Continue to keep the load connected and turned on.
Note:
If the bulb does not light, the GFCI may have tripped and needs to
be reset.
7. Press and hold the Power button until a beep sound is heard (about 1
second)—to turn the inverter off. The inverter’s status indicator and the
connected load should go off.
8. Apply AC power to the inverter’s AC input. After the AC input power is
quali
fi
ed (approximately 5 seconds), the inverter will automatically come on.
Verify that the display begins showing the revision (r#.#) and the connected
load comes on, and the Status light begins to blink (amber). This indicates
the unit is connected to AC power. After approximately 15 more seconds, the
inverter will now be in By-Pass mode—transferring the incoming AC power
through the inverter to the inverter’s AC output and powering the connected
load. When this happens, verify the inverter’s status indicator turns green
and the connected load stays on.
9. Disconnect the incoming AC power to the inverter and verify the connected
load remains on. The inverter is now in Inverter mode.
If the inverter passes all the steps, the inverter is ready for use.
If it fails any of the steps, refer to the troubleshooting information in Sec-
tion 4.0.
