Parweld XTM 221Di - Plasma Cutting Problems

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25
8.4 Plasma Cutting Problems
Description Possible cause Remedy
Torch cuts but not
adequately
1. Current set too low
2. Torch is being moved
too fast across work
piece
3. Oil or moisture in
torch
1. Increase
current
setting.
2. Reduce
cutting speed
3. Ensure
water trap
on rear of
machine
is empty
(disconnect
air supply
to allow it to
drain). Put
machine
in setting
mode Hold
torch 1/8
inch (3 mm)
from clean
surface while
purging and
observe oil
or moisture
buildup (do
not activate
torch)
Heavy dross on under-
side of plate
Cutting power is to low Increase
cutting power
Cut is not straight 1.Tip is damaged
2. Cut direction is not
correct.
Reduce
travel speed;
ensure
correct tip
is tted for
amperage.
Observe
correct
stando󰀨 and
direction of
cut
Power source problems
Cut quality is dependent on the selection of the correct consumable,
maintenance of equipment and proper cutting technique.
Description Possible cause Remedy
Interlock light
illuminates
when trigger
pressed
Air pressure is set to low Adjust air pressure
to 5Bar. Restart the
power source
Interlock light
ashes when
trigger pressed
Outer nozzle or other
consumable not installed
correctly
re-assemble front
end spares to
ensure outer nozzle
is seated fully.
Restart the power
source
Description Possible cause Remedy
Interlock light
illuminates
when trigger
pressed, and
the air ow is
intromittent
Cutting tip or electrode
not installed correctly
Short circuit in side the
torch or cable
re-install the tip and
electrode. Restart
the power source
Have it checked by
a qualied engineer
Fault light
illuminates
Machine has over
heated.
Input voltage is to high
Internal machine fault
Allow machine to
cool with fan running
Ensure input voltage
is correct
Have machine
inspected by
qualied engineer
Torch does
not start when
trigger pressed
Machine is in Set mode Change switch to
run mode on front
panel