Output Problems

E-5

TROUBLESHOOTING

E-5

Observe all Safety Guidelines detailed throughout this manual

TROUBLESHOOTING GUIDE

Observe Safety Guidelines

detailed in the beginning of this manual.

PROBLEMS

POSSIBLE AREAS OF

RECOMMENDED

(SYMPTOMS)

MISADJUSTMENT(S)

COURSE OF ACTION

Machine often “noodle welds” (out-

1. Secondary current limit has

put is limited to approximately 100

been exceeded,

and

the

amps) when running a particular

machine has phased back to

procedure

protect itself. Adjust proce-

dure or reduce load to lower

current draw

from

the

machine.

Machine won’t produce full output.

1. Input voltage may be too low,

limiting output capability of the

power source.

Make certain

that the input voltage is prop-

er, 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.

For no apparent reason, the weld-

1. Check for proper Wire Feed

If all recommended possible areas

of misadjustments have been

ing characteristics have changed.

Speed setting.

In CV MIG

checked and the problem persists,

and FCAW modes, check for

contact your local Lincoln

proper Voltage setting. In the

Authorized Field Service Facility.

MIG/MAG pulse

modes,

check the Trim setting. These

controls are on the wire feed-

er.

2. Check for proper shielding

gas mix and flow.

3. Check for loose or faulty weld

cables and cable connections.

Auxiliary receptacle is “dead” — no

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 455/R

IM690-A specifications

The Lincoln Electric IM690-A is a sophisticated and versatile multi-process welding machine designed to cater to a wide range of professional welding applications. Combining innovative technology with robust functionality, the IM690-A stands out as a reliable choice for welders across various industries.

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In conclusion, the Lincoln Electric IM690-A is a powerful multi-process welder that combines advanced inverter technology with user-friendly design and safety features. Its versatility, efficiency, and adaptability make it an outstanding choice for professionals seeking a reliable welding solution. Whether you’re working in a shop or on-site, the IM690-A delivers exceptional performance and quality in a compact, durable package.