Hypertherm MAX200 Machine Torch Plasma Arc Cutting System - Manual (Page 67)

4-2 MAX200 Instruction Manual
14
OPERATION
Front Panel Controls
Power
• ON (1) pusbutton/indicator switch
Activates the power supply and its control circuits.
• OFF (0) 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.
Status Indicators Before Startup
When power is applied from the line disconnect switch and before the POWER ON (I) button is pushed, the
COOLANT FLOW LED will be illuminated. Once the POWER ON button is pushed, this LED will extinguish if the
system is in the proper working condition. Other fault conditions may also be indicated when the line power is
switched on. Correct any other fault conditions before pressing the the POWER ON (I) button. See Troubleshooting
in Section 3 of MAX200 Service Manual, IM-162 (801620).