22 2-112-11Technical Overview > Controller System > Low-voltage Power Supply > OutlineTechnical Overview > Controller System > Low-voltage Power Supply > Outline■ Failure DetectionFailure Point Cause of FailureMain Motor In the case that the speed of Motor does not reach the specified speed after thespecified time has passed since the startup of the Main Motor.Main Fan In the case that the Fan has been locked continuously for the specified period oftime since the startup of the Main Fan Motor.T-2-6Low-voltage Power Supply■ OutlineThe Low-voltage power supply converts AC Power from the power receptacle into DC Powerto cover the DC loads.Block diagram of the Low Voltage Power Supply is shown below.+5V+3.3V+3.3V+24V+24U+24V_SDOORSNSNoisefilterFET+24P1Fuse(FU1002)Fuse(FU1001)Door switch(SW301)+24V generationcircuitDC controllerLow-voltage power supplyEngine controllerFixingcontrolcircuit Fixing unitMain motor, etc.Main controller+5Vgenerationcircuit+3.3VgenerationcircuitHigh-voltagepower supplyNoise filterProtectioncircuitFuse(FU101)FETPower switch(SW1,SW11)F-2-11