Hypertherm Powermax600 Service Manua - Manual (Page 34)

3-8
MAINTENANCE
powermax 600 Service Manual
• Connect gas supply to filter-regulator on power unit
• Connect work lead to workpiece
• Apply power at line voltage disconnect box
• Set circuit breaker S1 to ON (I)
Fan M1 operates and POWER and OK LEDs illuminate,
indicating system is ready for operation.
Other LEDs should be OFF (see troubleshooting if ON).
• Turn current adjust knob fully counter
clockwise to gas test position.
• Check air pressure setting.
Gas solenoid valve V1 opens to
purge system and to allow setting
of pressure.
Power circuits ready.
• Position torch on workpiece.
• Depress plasma start switch on hand
torch or remote start switch for machine torch.
• Move torch to make cut.
• Workpiece falls away after cut.
• Release plasma start switch on
hand torch or remote start switch
for machine torch.
Arc extinguishes.
Post flow continues for 10
seconds.
System off
• Set gas pressure to 70 psi
(4.5 bar).
• Select cutting amps with
current adjust knob.
Gas solenoid valve V1
closes. Gas flow stops.
Fan continues to operate and LOW VOLT
LED illuminates for approximately 5 sec.
All LED's are OFF.
Cutting arc transfers to workpiece.
Pilot arc stops.
Cut arc starts.
Gas solenoid V1 closes.
Gas flow stops.
Gas solenoid valve V1 opens.
Gas flow starts.
Pilot arc starts.
• Set circuit breaker S1
to OFF (0).
Sequence of Operation
10-99