Problem with Hypertherm Powermax 380 plasma cutter
Bob -
I have a 600 and it is nice.
If you are new to these, then I suspect the issue is Static pressure
vs. dynamic pressure.
They need 40 at maximum air flow. e.g. can your tank supply 40 when the
torch is cooling ? Often the issue is the flow rate.
Set pressure when the torch is turned to cooling mode. Normally below
zero on the current control.
So many people set pressure in a non-flow condition and it dies when
used - being starved to death.
Martin
Bob Engelhardt wrote:
I'm getting a "Gas pressure" fault on my plasma cutter (Hypertherm
Powermax 380). The PC monitors the gas (air in my case) pressure &
inhibits power to the torch if it falls below 40 psi.
I've:
- checked the pressure on the supply line - it never drops below 80 psi
- changed the filter on the PC
The PC has a built-in air regulator & gauge. It's set to 60 psi, as it
it is supposed to be. The pressure doesn't drop when the torch trigger
is pulled & gas flows.
If I set the PC's regulator to 80 psi it works. Sometimes. The owners
manual says to check the torch lead for pinched hose or obstructions.
This suggests that there is a pressure sensor in the torch & upping the
regulator satisfies it. But the parts diagram doesn't show one.
Any ideas? Before I start tearing it apart, which I'd really rather not
do.
Thanks,
Bob
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