THERMACUT EX-TRAFIRE 75SD - Output and Arc Performance Problems

EX-TRAFIRE
®
75SD
Operator Manual, Revision T-57-50
Fault This may mean Cause Solution
No arc output
but no alarm
light when
torch trigger is
depressed or
the CNC start
signal is ON�
• Torch fault� • Incorrect type of
the torch�
• Use the correct torch type
which is suitable
for the machine�
• Torch components� • Check torch components,
change parts if necessary�
• Input gas
pressure fault�
• Input gas pressure
is too high�
• Decrease input static
pressure to 7 bar/101 psi�
No transfer
between
pilot arc and
workpiece�
• Work clamp
connection fault�
• Fluctuating
connection
between the clamp
and workpiece�
• Clean the surface
of the clamp and material�
• No connection to
workpiece�
• Incorrect distance
between the torch
and workpiece�
• Maintain correct distance
between the torch and
workpiece�
• Work cable is
broken�
• Replace the work cable�
The output
is too low,
unstable or
inadequate�
• Connection fault� • Input and output
connection leads�
• Check all input and output
connection leads�
• Fluctuating
connection
between the clamp
and workpiece�
• Make sure that work lead has
a good connection to a clean
and dry area of workpiece�
• Incorrect distance
between the torch
and the workpiece�
• Maintain correct distance
between the torch and
the workpiece�
• Voltage fault� • Incorrect input
voltage�
• Use the correct input voltage,
in accordance
with specification�
The pilot arc
is difficult to
ignite and cuts
out�
• Consumables
fault�
• Check for worn
consumables�
• Change the consumable
which may be worn�
• Air pressure fault� • The air pressure is
too high�
• Adjust the air pressure
output�