Lincoln Electric SP-255 manual TROUBLESHOOTINGE-5, Function Problems

Models: SP-255

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TROUBLESHOOTINGE-5

Observe Safety Guidelines

detailed in the beginning of this manual.

TROUBLESHOOTING GUIDE

 

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE AREAS OF

 

 

(SYMPTOMS)

 

 

MISADJUSTMENT(S)

 

 

 

 

 

 

FUNCTION PROBLEMS

 

 

The SP-255 stops feeding wire

 

 

1.

Check for any restriction in the

 

 

while welding and the MOTOR

 

 

 

wire feeding path.

 

 

OVERLOADED message appears

 

 

 

 

 

 

on the LCD display.

 

 

2.

Make sure the correct size con-

 

 

 

 

 

 

tact tip, gun liner and drive rolls

 

 

 

 

 

 

are being used.

 

 

 

 

 

 

 

 

 

The voltage and/or wire feed speed

 

 

1.

The thumbswitch circuit in the

 

 

are being changed even though the

 

 

 

gun and cable assembly may be

 

 

gun thumbswitch or front panel

 

 

 

faulty. Repair or replace.

 

 

arrow keys are not activated.

 

 

 

 

 

 

 

 

 

 

 

 

 

The LCD display is not readable

 

 

1.

There may have been an inter-

 

 

even though the backlighting is

 

 

 

nal system “fault”. Turn input

 

 

functioning.

 

 

 

power off for a few seconds.

 

 

 

 

 

 

Turn power back on and check

 

 

 

 

 

 

for proper machine operation.

 

 

 

 

 

2.

Check the input voltage. Make

 

 

 

 

 

 

sure the input voltage matches

 

 

 

 

 

 

the nameplate rating and the

 

 

 

 

 

 

reconnect panel configuration.

 

 

 

 

 

 

 

 

 

Error messages or alarm continu-

 

 

1.

There may be an error in the

 

 

ously beeps in bursts of three.

 

 

 

system or the keypad entry. See

 

 

 

 

 

 

Explanation of Prompting and

 

 

 

 

 

 

Error Messages in the Operation

 

 

 

 

 

 

section.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RECOMMENDED COURSE OF ACTION

If all recommended possible areas of misadjustment have been checked and the problem persists, contact your local Lincoln Authorized Field Service Facility.

IDEALARC SP-255

Page 41
Image 41
Lincoln Electric SP-255 manual TROUBLESHOOTINGE-5, Function Problems