Lincoln Electric IM713-B Manuel d'utilisateur télécharger pdf (Page 30)

E-5

TROUBLESHOOTING

E-5

POWER WAVE® 655/R

Observe all Safety Guidelines detailed throughout this manual

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.

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

OUTPUT PROBLEMS

Machine often “noodle welds” (out-

put is limited to approximately 100

amps) when running a particular

procedure

Machine won’t produce full output.

For no apparent reason, the weld-

ing characteristics have changed.

Auxiliary receptacle is “dead” — no

auxiliary voltage .

The PowerWave is triggered to

weld, but there is no output.

1. Secondary current limit has

been exceeded, and the

machine has phased back to

protect itself. Adjust procedure

or reduce load to lower current

draw from the machine.

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”.

Make certain the input voltage

is proper on all three input

lines.

1. Check for proper Wire Feed

Speed setting. In CV MIG and

FCAW modes, check for prop-

er Voltage setting. In the

MIG/MAG pulse modes, check

the Trim setting. These con-

trols are on the wire feeder.

2. Check for proper shielding gas

mix and flow.

3. Check for loose or faulty weld

cables and cable connections.

1. Circuit breaker CB2 (on case

front) may have opened.

Reset.

2. Circuit breaker CB4(Codes

10630, 10863) (in reconnect

area) may have opened.

Reset.

10A Fuse(Code 11410) (in

reconnect area) may have

blown out. Replace.

1. Check for fault signals from the

I/O connector. Possible faults

are lack of water flow

2. Circuit breaker CB4 (in recon-

nect area) may have opened.

Reset.

If all recommended possible areas

of misadjustments have been

checked and the problem persists,

contact your local Lincoln

Authorized Field Service Facility.

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Lincoln Electric IM713-B Manuel d'utilisateur Page 30

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