Pro-Cut 125 Status Lights Operating Modes - Lincoln Electric PRO-CUT 125 IM491-B Operator's Manual

PRO-CUT 125 STATUS LIGHTS OPERATING MODES

STATUS
LIGHTS
MACHINE ON Should always be on when machine is on. Normal
OUTPUT ON On when there is voltage potential at the
torch (cutting or pilot).
OUTPUT ON is blinking alternately with
AIR PRESSURE when power is first
applied to machine.
If OUTPUT ON is blinking alternately
with MALFUNCTION, the pilot arc duty
cycle is exceeded.
AIR PRESSURE On whenever the air pressure is above 45 Normal conditions are purge, preflow,
psi (311 kPa), there is an error condition
mentioned above where air will turn on.
The air will turn on for a brief time when
power is first applied to machine.
THERMAL Should normally be off.
MALFUNCTION Light on. At end of preflow, machine
checks to see if the torch is shorted and if Check torch cable to see if it is punctured
it can fire the SCR's.
Light blinking. If cutting tried with air
pressure less than 45 psi (311 kPa) then
the machine will wait for air pressure to
become greater than 45 psi (311 kPa).
Light blinking alternately with OUTPUT
ON.
Light started blinking during cutting or
gouging. There is an overcurrent condition 1/4" (6.4mm)
caused by a surge of current the machine at high range of machine and nozzle is
was not designed to handle. Release the
trigger and resume cutting or gouging.
Light blinking with THERMAL light on.
Light is blinking two short flashes in close
succession followed by one second off
period.
CONDITION
– 20 –
SUGGESTIONS
Normal
There is a problem with the microprocessor,
replace the Control PC board.
Wait for machine lights to stop blinking.
postflow and cutting.
If on, wait for machine to cool down.
Machine will cool faster if left on with
output off.
Check consumables, replace as needed.
or cut.
No air connected to machine, air pressure
set too low, or air leak in system.
Pilot arc duty cycle has been exceeded.
Wait for machine lights to stop blinking.
If cutting or gouging with standoff more than
accidentally touched to work, shorten stickout,
or use drag cup. Check consumables to see if
electrode melted to nozzle.
Wait for machine to cool. Torch assembly is:
1. Not connected properly.
2. Damaged
3. Not designed for use with this machine.
Check connections; repair or replace as needed.