A-8

A-8

INSTALLATION

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VOLTAGE SENSING

The best arc performance occurs when the Power Wave has accurate data about the arc conditions. Depending upon the process, inductance within the electrode and work lead cables can influence the volt- age apparent at the terminals of the welder. Voltage sense leads improve the accuracy of the arc conditions and can have a dramatic effect on performance.

CAUTION

If the voltage sensing is enabled but the sense leads are missing or improperly connected, extremely high welding outputs may occur.

Do not tightly bundle the work sense lead to the work lead.

The sense leads connect to the Power Wave at the four-pin connector located underneath the output ter- minal cover. Lead 67 senses electrode voltage. Lead 21 senses work voltage.

Enable the voltage sense leads as follows:

TABLE A.2

Process

Electrode Voltage

Work Voltage

 

Sensing 67 lead *

Sensing 21 lead

 

 

 

GMAW

67 lead required

21 lead optional

GMAW-P

67 lead required

21 lead optional

FCAW

67 lead required

21 lead optional

STT

67 lead required

21 lead required

GTAW

Voltage sense at

Voltage sense at

 

terminals

terminals

SAW

67 lead required

21 lead optional

 

 

 

*The electrode voltage 67 sense lead is integral to the con- trol cable to the wire feeder.

FIGURE A.3 – DIP SWITCH LOCATION

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455/R VE WA POWER

 

 

 

I

REMOVE

 

 

 

ON

 

 

O

OFF

FRONT

 

 

 

POWER

 

 

 

COVER

W

 

 

 

 

 

 

 

 

 

 

 

AVE

455/R

 

 

 

 

 

WIRE FEED

CONTROL

HEAD BOARD

BOARD

ON RIGHT

ON LEFT

POWER WAVE 455M/MSTT

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Lincoln Electric SVM173-A service manual Voltage Sensing, Table A.2

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.