Hypertherm Powermax30 AIR Service Manual - Manual (Page 87)

Powermax30 AIR Service Manual 808850 87
5 – Troubleshooting and System Tests
Test 6 – plasma start
Use this test to make sure the control board LED is receiving a valid start signal.
1. Set the power switch to OFF (O), and disconnect the power cord from the power source.
2. Remove the power supply handle and cover. See Remove the power supply cover on page 98.
3. Remove the component barrier. See Remove the component barrier on page 100.
4. Reconnect the electrical power and turn the power ON (I).
5. Quickly tap the torch trigger to force gas flow without firing an arc, and watch the Start LED on the control board.
The Start LED should illuminate whenever the trigger is pulled. See Control board LEDs on page 71 for the location
of the Start LED.
6. Turn OFF (O) the power.
WARNING!
While testing, do not touch the nozzle at the end of the torch. Dangerous voltages can
cause serious injury.
WARNING!
ELECTRIC SHOCK CAN KILL
Use extreme caution when working near live electrical circuits. Dangerous
voltages exist inside the power supply that can cause serious injury or death.
See the WARNING! on page 57 before proceeding.