Cobra Electronics CPI 480 owner manual Power and Protection Indicators Operating Limits

Power and Protection Indicators

Operating Limits

Operation

Power and ProtectionIndicators

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The power and protection indicators include a green

Operation

OperatingLimits

PowerOutput

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light, a red light and an alarm.

Green Light

Power on – The green light should remain on steady.

Red Light and/or Alarm

Currentoverload– The red light will blink continuously, then the inverter will shutdown. The inverter will continue to check for appropriate current levels while trying to restart the load.

DC input voltageoverload– The red light will turn on and the inverter will shutdown. The inverter will continue to check for appropriate voltage levels while trying to restart the load.

DC input voltageshortage– As a warning that the voltage is getting low, the internal alarm will sound. When the voltage is too low, the inverter will shutdown and the red light will turn on. The inverter will continue to check for appropriate voltage levels while trying to restart the load.

Temperatureoverload– The red light will blink, then the inverter will shutdown. The inverter will continue to check for appropriate temperature levels while trying to restart the load.

NOTE A momentary sound of the internal alarm and/or flash of the red light is normal at start up.

The inverter can deliver 400 watts for about 60 minutes. The inverter must cool for 15 minutes before it can resume operation at 400 watts. Note: The wattage rating applies to resistive loads.

The inverterwill operatemost AC loads within its power rating. Some inductionmotors used in freezers,pumps, and other motor-operatedequipmentrequirevery high surge currentsto start. The invertermay not be able to start some of these motors even though their rated currentdraw is within the inverter’slimits. The inverter will normallystart single phase inductionmotors rated at one-halfHP or less.

InputVoltage

The inverter will operate from input voltage ranging from 10 volts to 15 volts. Optimum performance will occur when the voltage is between 12 volts and 14 volts. If the voltage drops below 10.5V+/- 0.3V, an audible low battery warning will sound. The inverter will shut down if the input voltage drops below 9.5V+/-0.3V. This protects the battery from being over-discharged. It will restart when the input voltage exceeds 12V+/-0.3V.

The inverter will also shut down if the input voltage exceeds 15.75V+/-0.75V. This protects the inverter against excessive input voltage. Although the inverter has protection against over-voltage, it may still be damaged if the input voltage were to exceed 16 volts.

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