Hypertherm HT4100 Plasma Arc Cutting System Operating - Manual (Page 28)

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OPERATION
HT4100 Instruction Manual: Operation
FRONT PANEL CONTROLS AND INDICATORS
HT4100 Master Power Supply (Fig. 3-1)
POWER
• ON (1) Pushbutton/indicator switch (PB1/LT1)
Activates the power supply and its control circuits. Indicator lights when power up is
complete.
• OFF (0) Pushbutton switch (PB2)
Shuts the power supply down.
• DC POWER ON Indicator (LT2)
Lights when main contactor closes, indicating DC power is being supplied to the torch.
STATUS
• Slave Transformer LED
When off, indicates that the slave power supply main transformer has overheated.
• Master Transformer LED
When off, indicates that the master power supply main transformer has overheated.
• RHF Interlock LED
When off, indicates that either or both remote HF console door interlock(s) is disengaged.
• Slave Interlock LED
When off, indicates that the slave power supply microprocessor has malfunctioned.
• Plasma Gas LED
When off, indicates that the plasma gas pressure is too low.
• Spare LED
Spare indicator.
• Coolant Flow LED
When off, indicates that the coolant flow to the electrode is inadequate.
HT4100 Slave Power Supply (Fig. 3-2)
• AC ON Indicator (LT1)
Lights when the power supply and control circuits are activated.
• DC POWER ON Indicator (LT2)
Lights when main contactor closes, indicating DC power is being supplied to the torch.