Hypertherm Powermax125 Service Manua - Manual (Page 40)

40 Powermax125 Service Manual 808070
3 – Basic System Operations
Front controls and LEDs
LEDs
Selectors
Power ON LED (green) – When illuminated, this LED indicates that the power switch has been set to
I (ON) and that the safety interlocks are satisfied. When blinking, the power supply has a fault.
Fault LED (yellow) – When illuminated, this LED indicates that there is a fault with the power supply.
Automatic/manual pressure setting mode selector – The selector switches between
automatic and manual mode. In automatic mode, the power supply automatically sets the gas
pressure based on the torch type and lead length, and the adjustment knob sets only the
amperage. In manual mode, the adjustment knob sets either the gas pressure or the amperage.
This LED is illuminated in manual mode.
 Manual mode should be used by experienced users who need to
optimize the gas setting (override the automatic gas setting) for a
specific cutting application.
When you switch from manual mode to automatic mode, the power supply automatically sets the
gas pressure, and the amperage setting is unchanged. When you switch from automatic mode to
manual mode, the power supply remembers the previous manual gas pressure setting, and the
amperage setting is unchanged.
When you reset the power, the power supply remembers the previous mode, gas pressure, and
amperage settings.
Current/gas selector – When in manual mode, this selector toggles between amperage and
gas pressure for manual adjustments using the adjustment knob.
Adjustment knob
Operating mode switch
Status screen
Fault LED (yellow)
Automatic/manual pressure
setting mode selector
Current/gas
selector
Power ON LED
(green)
Modes
AC