E-6

 

 

TROUBLESHOOTING

 

E-6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

 

POSSIBLE AREAS OF

 

RECOMMENDED

 

(SYMPTOMS)

 

MISADJUSTMENT(S)

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT PROBLEMS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Machine often noodle welds(out-

1.Secondary current limit has been

 

 

 

 

 

put is limited to approximately 100

 

 

exceeded, and the machine has

 

 

 

 

 

 

 

amps) when running a particular

 

 

phased back to protect itself.

 

 

 

 

 

 

 

procedure, especially a procedure

 

 

2. Adjust procedure or reduce load

 

 

 

 

 

 

 

with high WFS.

 

 

to lower current draw from the

 

 

 

 

 

 

 

 

 

 

 

machine.

 

 

 

 

 

 

 

 

 

 

 

3. A single phase input (loss of L2)

 

 

 

 

 

 

 

 

 

 

 

will reduce the secondary current

 

 

 

 

 

 

 

 

 

 

 

limit from 570 Amps to 325

 

 

 

 

 

 

 

 

 

 

 

Amps.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Machine wont produce full output.

 

 

1. Input voltage may be too low,

 

 

 

 

 

 

 

 

 

 

 

limiting output capability of the

 

 

 

 

 

 

 

 

 

 

 

power source. Make certain that

 

 

 

 

 

 

 

 

 

 

 

the input voltage is proper,

 

 

 

 

 

 

 

 

 

 

 

according to the Rating Plate

 

 

 

 

 

 

 

 

 

 

 

located on the rear of the

 

 

 

 

 

 

 

 

 

 

 

machine.

 

 

 

 

 

 

 

 

 

 

 

2. Input may be single phased.

 

 

 

If all recommended possible areas

 

 

 

 

 

 

 

Make certain the input voltage is

 

 

 

 

 

 

 

 

 

 

 

 

 

of misadjustments have been

 

 

 

 

 

 

 

proper on all three Input lines.

 

 

 

 

 

 

 

 

 

 

 

 

 

checked and the problem persists,

 

 

 

 

 

 

 

3. STT machines only: May be

 

 

 

 

 

 

 

 

 

 

 

 

 

contact your local Lincoln

 

 

 

 

 

 

 

exceeding the 325 amp limit on

 

 

 

 

 

 

 

 

 

 

the STT output terminal.

 

 

 

Authorized Field Service Facility.

 

 

 

 

 

 

 

4. Secondary current or voltage not

 

 

 

 

 

 

 

 

 

 

 

be properly calibrated. Check

 

 

 

 

 

 

 

 

 

 

 

values displayed on the Power

 

 

 

 

 

 

 

 

 

 

 

Feed 10/11 verses readings on

 

 

 

 

 

 

 

 

 

 

 

an external meter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Auxiliary receptacle is deadno

 

 

1. Circuit breaker CB2 (on case

 

 

 

 

 

 

 

auxiliary voltage .

 

 

front) may have opened. Reset.

 

 

 

 

 

 

 

 

 

 

 

2. Circuit breaker CB4 (in recon-

 

 

 

 

 

 

 

 

 

 

 

nect area) may have opened.

 

 

 

 

 

 

 

 

 

 

 

Reset.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, con- tact your local authorized Lincoln Electric Field Service Facility for technical assistance.

POWER WAVE 455M/STT (CE)

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Lincoln Electric IM808-A manual Exceeding the 325 amp limit on STT output terminal