-7-Display FunctionAC INPUT LEDThe green AC INPUT LED lights up if mains voltage is applied to the UPS input.AC INPUT LED blinks when the phase and neutral conductor have beenreversed at the input of the UPS system.If AC INPUT LED and BATTERY LED light up, the mains power supply is out oftolerance.BATTERY LED The orange-coloured BATTERY-LED lights up when the mains power has failedand the inverter is being powered by the batteries.BYPASS LED The orange-coloured BYPASS LED lights up when the UPS system is supplyingvoltage provided by the mains power via the bypass.UPS ON LED The green-coloured UPS ON LED lights up if the UPS system is supplyingvoltage provided by the mains power via the inverter.ALARM LEDThe red ALARM LED lights up and an acoustic warning signal is issuedcontinuously when the UPS system is in fault condition. Press the OFF switch inorder to turn off the warning tone.Display FunctionLOAD andBATTERYCAPACITYLEDs(#2~#6)(ForEP700/1000/2000/3000)These LEDs show the load of the UPS system if the mains power is available(normal operation):2nd LED: 96%-108% 3rd LED: 71%-95% 4th LED: 51%-70%5th LED: 31%-50% 6th LED: 0-30%In the battery operation, the LEDs indicate the capacity of the batteries:2nd LED: 100% 3rd LED: 76%-100% 4th LED: 51%-75%5th LED: 26%-50% 6th LED: 0-25%LOAD andBATTERYCAPACITYLEDs(#2~#6)(For EP6000)These LEDs show the load of the UPS system if the mains power is available(normal operation):2nd LED: 96%-105% 3rd LED: 76%-95% 4th LED: 56%-75%5th LED: 36%-55% 6th LED: 0-35%In the battery operation, the LEDs indicate the capacity of the batteries:2nd LED: 81%-100% 3rd LED: 61%-80% 4th LED: 41%-60%5th LED: 21%-40% 6th LED: 0-20%