Hypertherm Powermax30 Service Manual - Manual (Page 41)

MAINTENANCE
3-2
powermax30
Service Manual
Controls and indicators
The Powermax30 has an ON/OFF rocker switch, an amperage adjustment knob and four indicator LEDs, which are
described below.
I
O
120V 15A
120V 20A
240V 20A
I
O
Rear controls
ON (I)/OFF (O) power switch
Activates the power supply and its control
circuits.
Power ON LED (green)
When illuminated, this LED indicates that
the power switch has been set at I (ON)
and that the safety interlocks are satisfied.
Gas pressure LED (yellow)
When illuminated, this LED indicates that
the gas pressure is below 40 psi (2.8 bar).
Correct this condition before continuing.
Torch cap LED (yellow)
When illuminated, this LED indicates that
the consumables are loose, improperly
installed, or missing.
AC AC
Front controls and LEDs
Temperature LED (yellow)
When illuminated, this LED indicates that
the power supply’s temperature is outside
the acceptable operating range.
Amperage adjustment knob
Use this knob to set the output current
between 15 and 30 amps. For use on a
120 volt, 15 amp circuit, set it at 20 or
below (indicated by the darker area
around the knob).
Front Rear
Some fault conditions will cause one or more of the LEDs to flash. For information on what these fault conditions
are and how to clear them, see
Troubleshooting guide, later in this section.