4-2 MAX200 Instruction Manual
1-97
OPERATION
Front Panel Controls
Power
• ON (I) pusbutton/indicator switch
Activates the power supply and its control circuits.
• OFF (O) pushbutton switch
Shuts the power supply down.
• DC ON LED
Illuminates when main contactor closes, indicating that DC power is present at the torch.
• AMPS thumbwheel switch (supplied on units w/o THC)
Adjusts output current.
• MACHINE DELAY dial
Adjusts the machine motion delay from 0.1 seconds to 6.0 seconds.
Status
The STATUS indicators are all extinguished during normal operation.
• INTERLOCK LED (Spare interlock for future use)
When illuminated, indicates that the interlock jumper on TB4-34 & 35 has been removed. For assistance in
reinstalling the jumper, refer to Claims and Technical Questions later in this section.
• TRANSFORMER LED
When illuminated, indicates that either the main transformer or one of the choppers has overheated.
• COOLANT LEVEL LED
When illuminated, indicates the coolant level is too low.
• SHIELD GAS/CAP LED
When illuminated, indicates the shield gas pressure is too low or the cap is not installed properly on the
torch.
• PLASMA GAS LED
When illuminated, indicates that the plasma gas pressure is too low.
• COOLANT TEMP LED
When illuminated, indicates that the torch coolant temperature is too high (above 70° C, 160° F).
• COOLANT FLOW LED
When illuminated, indicates that the coolant flow from the torch is inadequate.
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