Hypertherm Powermax105 Service Manual - Manual (Page 55)

Basic system OperatiOns
powermax
105 Service Manual 3-11
Adjusting the current (amperage)
Turn the adjustment knob to adjust the current for your particular cutting application.
If the system is in manual mode, do the following to adjust the amperage.
1. Press the current/gas selector until the selection cursor is opposite the amperage setting in the status screen.
2. Turn the adjustment knob to change the amperage.
3. If you wish to exit manual mode, press the automatic/manual pressure setting mode selector. The LED goes off.
Note: When you exit manual mode, the gas pressure resets to the factory-optimized value.
When you switch between manual mode and automatic mode, the power supply retains the amperage setting. When
you reset the power, the power supply returns to the previous mode (automatic mode or manual mode) and remembers
the previous amperage setting.
Electrode end-of-life detection feature
The electrode end-of-life detection feature on the Powermax105 protects the torch and workpiece from damage by
automatically stopping power to the torch when the electrode reaches its end of life. Fault code 0-32 also displays
on the front panel status screen. If you have the current set below 55 A, this feature is automatically disabled without
displaying the icon on the status screen.
To manually disable the feature, press the current/gas selector button (see figure below) five times on the control
panel. The system must be in the auto mode and the selector presses must be less than one second apart. Re-enable
the feature by repeating this procedure. An icon (see figure below) displays on the status screen when the feature is
manually disabled.
Current/gas selector
Electrode end of life detection manually disabled