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F-6

 

 

 

 

 

 

 

 

F-6

TROUBLESHOOTING & REPAIR

 

 

 

 

Observe Safety Guidelines

 

 

 

TROUBLESHOOTING GUIDE

detailed in the beginning of this manual.

 

 

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

 

POSSIBLE AREAS OF

RECOMMENDED

 

 

(SYMPTOMS)

 

MISADJUSTMENT(S)

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTPUT PROBLEMS

 

 

 

 

 

 

 

The Power Wave 455M does not

1. Turn the input power off and

1.

 

Check status led on case front

have welding output. The

main

 

make certain the reconnect

 

 

evaluate

 

 

 

 

input contactor CR1 is not activat-

 

panel is configured correctly for

2.

 

Perform

the

Input

Contactor

ing. Fan may be running.

 

 

the applied input voltage.

 

 

 

 

 

Test.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.

If the Thermal light is lit, See

3. Perform the Input Board Test.

 

 

 

next.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.

 

Perform

the T1

Auxiliary

 

 

 

 

 

 

Transformer Test.

 

 

 

 

 

 

5.

Perform

the

Input

Rectifier

 

 

 

 

 

 

Test.

 

 

 

 

 

 

 

 

6.

Perform

the

Switch Board

 

 

 

 

 

 

Test.

 

 

 

 

 

 

 

 

7. Perform the Power Board Test.

 

 

 

 

8. The Control Board may be faulty.

 

 

 

 

 

 

The thermal light is lit.

The

1.

The welding application may be

1.

One of the thermostats may be

machine regularly "overheats."

 

exceeding the recommended

 

 

faulty.

Also

check

associated

 

 

 

duty cycle and/or current limits

 

 

wiring for loose or faulty con-

 

 

 

of the machine.

 

 

nections.

See the Wiring

 

 

2. Dirt and dust may have clogged

 

 

Diagram.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the cooling channels inside the

 

 

 

 

 

 

 

 

 

 

machine. Refer to the Maint-

 

 

 

 

 

 

 

 

 

 

enance Section of this manual.

 

 

 

 

 

 

 

 

 

3. Air intake and exhaust louvers

 

 

 

 

 

 

 

 

 

 

may be blocked due to inade-

 

 

 

 

 

 

 

 

 

 

quate clearance around the

 

 

 

 

 

 

 

 

 

 

machine.

 

 

 

 

 

 

 

 

 

4. Make sure the fan is functioning

 

 

 

 

 

 

 

 

 

 

correctly. Machines above code

 

 

 

 

 

 

 

 

 

 

10500 are equipped with F.A.N.

 

 

 

 

 

 

 

 

 

 

(fan as needed) circuitry. The

 

 

 

 

 

 

 

 

 

 

fan runs whenever the output is

 

 

 

 

 

 

 

 

 

 

enabled, whether under load or

 

 

 

 

 

 

 

 

 

 

open circuit conditions. The fan

 

 

 

 

 

 

 

 

 

 

also runs for a period of time

 

 

 

 

 

 

 

 

 

 

(approximately 5 minutes) after

 

 

 

 

 

 

 

 

 

 

the output is disabled.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-888-935-3877.

POWER WAVE 455M/MSTT

Page 52
Image 52
Lincoln Electric SVM173-A service manual Input Contactor

SVM173-A specifications

The Lincoln Electric SVM173-A is a highly regarded welding power supply that stands out for its advanced features, robust performance, and innovative technologies. This machine is specifically designed to meet the demands of both industrial and commercial welding applications, making it a versatile choice for professionals.

One of the main features of the SVM173-A is its high efficiency, which contributes to reduced energy costs and enhanced productivity. The device operates on a powerful DC output, ensuring stable and reliable arc performance. This is particularly beneficial when working with various materials, allowing for smooth and consistent welds.

The SVM173-A leverages Lincoln Electric's proprietary inverter technology. This innovation allows for a lighter weight and more compact design without compromising on power. The inverter technology also enables precise control of the welding parameters, which is critical for maintaining quality across different welding tasks. Additionally, the machine features a wide input voltage range, accommodating various power sources and enhancing its adaptability on job sites.

Another key characteristic of the SVM173-A is its user-friendly interface. The machine is equipped with an intuitive control panel that allows users to easily adjust settings, making it accessible for both novice and experienced welders. The digital display provides clear readouts of output parameters and error notifications, facilitating quick troubleshooting in the field.

Safety is paramount in welding operations, and the SVM173-A incorporates several protection features. These include overcurrent protection, overheating protection, and circuit protection, ensuring that the machine operates safely and efficiently under various conditions.

The SVM173-A also supports a wide range of welding processes, including MIG, TIG, and stick welding. This flexibility makes it an ideal choice for workshops that require a multi-process machine capable of handling diverse applications. Furthermore, the SVM173-A supports spool gun operation, which is particularly useful for aluminum welding, enhancing its versatility even further.

In summary, the Lincoln Electric SVM173-A is a powerful and adaptable welding machine that combines innovative technologies, user-friendly features, and robust safety mechanisms. Its high efficiency, precision control, and multi-process capabilities make it an excellent investment for professionals seeking reliable performance in demanding environments. Whether for heavy-duty industrial use or more specialized applications, the SVM173-A stands as a testament to Lincoln Electric's commitment to quality and innovation in welding solutions.