PRO-CUT 125 STATUS LIGHTS OPERATING MODES

STATUS

 

 

LIGHTS

CONDITION

SUGGESTIONS

 

 

 

MACHINE ON

Should always be on when machine is on.

Normal

 

 

 

OUTPUT ON

On when there is voltage potential at the

Normal

 

torch (cutting or pilot).

 

 

OUTPUT ON is blinking alternately with

 

 

AIR PRESSURE when power is first

There is a problem with the microprocessor,

 

applied to machine.

replace the Control PC board.

 

If OUTPUT ON is blinking alternately

 

 

with MALFUNCTION, the pilot arc duty

 

 

cycle is exceeded.

Wait for machine lights to stop blinking.

 

 

 

AIR PRESSURE

On whenever the air pressure is above 45

Normal conditions are purge, preflow,

 

psi (311 kPa), there is an error condition

postflow and cutting.

 

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.

If on, wait for machine to cool down.

 

 

Machine will cool faster if left on with

 

 

output off.

 

 

 

MALFUNCTION

Light on. At end of preflow, machine

Check consumables, replace as needed.

 

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.

or cut.

 

Light blinking. If cutting tried with air

No air connected to machine, air pressure

 

pressure less than 45 psi (311 kPa) then

set too low, or air leak in system.

 

the machine will wait for air pressure to

 

 

become greater than 45 psi (311 kPa).

 

 

Light blinking alternately with OUTPUT

Pilot arc duty cycle has been exceeded.

 

ON.

Wait for machine lights to stop blinking.

 

Light started blinking during cutting or

If cutting or gouging with standoff more than

 

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

accidentally touched to work, shorten stickout,

 

trigger and resume cutting or gouging.

or use drag cup. Check consumables to see if

 

 

electrode melted to nozzle.

 

Light blinking with THERMAL light on.

Wait for machine to cool. Torch assembly is:

 

Light is blinking two short flashes in close

1. Not connected properly.

 

succession followed by one second off

2. Damaged

 

period.

3. Not designed for use with this machine.

 

 

Check connections; repair or replace as needed.

 

 

 

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Lincoln Electric IM491-B manual PRO-CUT 125 Status Lights Operating Modes, Status Lights Condition Suggestions