EN-14
OPERATING FAULTS
During cutting operations performance faults may
arise which are not caused by plant malfunctioning
but by other operational faults such as:
•
Insufficient penetration:
too high cutting speed;
torch is too tilted;
piece is too thick;
cutting current too low;
torch parts are worn out;
non-genuine Manufacturer’s parts;
•
Interruption of the cutting arc:
cutting speed too slow;
excessive distance between torch and workpiece;
AC line too low - reduce output current;
torch parts are worn out;
non-genuine Manufacturer’s parts;
work cable is disconnected;
•
Excessive scoria settlement:
too low cutting speed (bottom dross);
too high cutting speed (top dross);
excessive distance between torch and workpie-
ce;
cutting current too low;
torch parts are worn out;
non-genuine Manufacturer’s parts;
•
Tilted cutting (not perpendicular):
torch position not correct;
asymmetric wear of nozzle hole and/or
wrong; assemblage of the torch parts;
•
Excessive wear of nozzle and electrodes:
air pressure too low;
exceeding system capability (material too
thick);
contaminated air (humidity-oil);
excessive pilot arc arc ignitions in the air;
Improperly assembled torch;
torch tip contacting workpiece;
damaged or loose torch head components;
non-genuine Manufacturer’s parts.
TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
POSSIBLE SOLUTION
Power Led OFF, Fan not operating.
No Input Power.
Open breaker.
Plug unit into a proper outlet.
Reset Breaker.
Power LED ON, Overtemperature
LED ON
The display views
Unit is overheated.
Make sure the unit has not been
operated beyond duty cycle limits.
Air Flow obstructed.
Ensure at least 0.5m of free space
around the unit.
Power LED ON, “Increase” or
“Decrease” LEDs ON
Air pressure not correct
Check that there is a correct air
pressure for the selected operation
mode.
Air line blocked
Check that air line and torch leads
are free of twists and kinks
Power LED blinking
The display views
Too low input voltage
Check power supply for correct
line voltage. As soon as the
voltage falls within the parame-
ters allowed by the generator
the power LED is turned on and
the machine restarts normal
operation. If unit doesn’t restart,
contact a Service Center.
Power LED blinking
The display views
Too high input voltage
Power LED blinking
The display views
Missing phase
