Inverter Unit: Fail-safe
When a malfunction listed below occurs, the inverter unit turns OFF the AC 120V outlet main switch indicator and stops the output.
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Malfunction item |
Fail-safe condition |
Fail-safe cancellation condition |
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Inverter unit power supply voltage is greater than 15V |
When inverter unit input voltage rises above 15V, the output will be suspended to protect the inverter unit. |
After the inverter unit power supply voltage drops below 15V, the AC 120V outlet main switch ON => OFF => ON operation allows normal return. |
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Inverter unit power supply voltage is less than 11.5V for 2 seconds or more |
When inverter unit input voltage is lowered, the output will be suspended to protect the battery from running out. |
After the inverter unit power supply voltage rises above 11.5V, the AC 120V outlet main switch ON => OFF => ON operation allows normal return. |
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Inverter unit power supply voltage is less than 9V |
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Inverter unit AC 120V output voltage is greater than 170V |
When inverter unit AC 120V output voltage is greater than 170V, the output will be suspended. |
After the inverter unit AC 120V output voltage drops below 170V, the AC 120V outlet main switch ON => OFF => ON operation allows normal return. |
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Inverter unit input current is greater than 13.3A |
When inverter unit input current rises above 13.3A, the output will be suspended to prevent over current (e.g., connecting an electric appliance exceeding rated output). |
After the inverter unit input current drops below 13.3A, the AC 120V outlet main switch ON => OFF => ON operation allows normal return. |
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Inverter unit is overheated |
When the inverter unit is overheated [thermistor temperature above 100 deg.C (212 deg.F)], the output will be suspended to protect the inverter unit. |
After the inverter unit temperature is lowered, the AC 120V outlet main switch ON => OFF => ON operation allows normal return. |
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Inverter unit output signal (AC 120V output signal) is shorted |
When inverter unit output signal is shorted, the output will be suspended. |
After recovering from inverter unit output signal short, the AC 120V outlet main switch ON => OFF => ON operation allows normal return. |