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E-2

 

THEORY OF OPERATION

E-2

 

 

 

 

 

 

 

FIGURE E.1 — LN-10 GENERAL DESCRIPTION.

 

 

 

 

 

 

SOLENOID

 

 

 

 

 

TO GUN TRIGGER

 

 

 

 

 

AND

 

 

 

 

 

DUAL PROCEDURE

 

 

 

 

WIRE DRIVE

WIRE

 

 

 

 

 

 

 

 

 

RECEPTACLE

DRIVE

 

 

 

 

 

MOTOR

 

 

OPTIONAL

OPTIONAL

 

 

 

 

 

 

 

REMOTE

ROBOTIC

TACH FEEDBACK

 

 

 

CONTROL

INTERFACE

 

 

 

 

KIT

MODULE

 

 

INPUT

CURRENT SENSING

REED SWITCH

CABLE

CONTROL BOARD

RECEPTACLE

 

42VAC

 

GROUND

 

LEAD

 

PROTECTOR

VOLTS

WFS

DISPLAY

ENCODER

ENCODER

BOARD

 

 

KEYPAD

GENERAL DESCRIPTION

The LN-10 is a single head, 42 VAC input, 4-roll wire feeder. A single control with dual procedure presetta- bility of wire feed speed (inches per minute or meters per minute) and arc voltage is used in conjunction with a Lincoln constant voltage (CV) welding power source.

The LN-10 wire feeders have controls providing key- pad or remote selectability of either of two proce- dures. Also offered are four independently selectable gun trigger modes for each procedure; cold feed, 2- step and 4-step trigger and spot weld. The unit incor- porates 4 selectable, presettable timers for each pro- cedure. Preflow, postflow, burnback and spot weld can all be preset.

Arc starting can be optimized for each procedure with 5 selectable wire feed acceleration rates. A gas purge key is provided, as well as cold feed forward and reverse keys with independently adjustable for- ward feed speed settings.

LN-10

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Lincoln Electric SVM154-A service manual Control Board

SVM154-A specifications

The Lincoln Electric SVM154-A is a powerful and versatile inverter-based welding machine designed for a wide range of applications. As a part of Lincoln Electric's esteemed portfolio, this model is particularly favored for its robust performance and cutting-edge technologies, making it ideal for both professional fabricators and hobbyists alike.

One of the standout features of the SVM154-A is its compact and lightweight design, which enhances portability without compromising power. Weighing significantly less than traditional welding machines, it allows welders to easily transport the equipment to various job sites. This feature is particularly beneficial in industries where mobility is essential.

Equipped with advanced inverter technology, the SVM154-A delivers a stable and smooth arc, providing consistent welding performance even in challenging conditions. The inverter design also contributes to energy efficiency, allowing users to save on operational costs while enjoying superior performance. The machine supports both MIG and TIG welding processes, which adds to its versatility. This adaptability makes it suitable for a range of materials including mild steel, stainless steel, and aluminum.

Another notable characteristic is its user-friendly interface. Designed with the welder in mind, the SVM154-A includes intuitive controls that simplify settings adjustments and operational processes. This ergonomic layout allows for ease of use, even for beginners, while still offering the adjustments that experienced welders appreciate for customizing their welds.

The SVM154-A also includes several safety features, such as thermal overload protection and a dynamic power control, ensuring safe operation while maintaining high productivity. Users benefit from features that protect both the machine and the operator, making it a reliable choice for long hours of work.

Moreover, Lincoln Electric's commitment to durability is evident in the SVM154-A's construction. Built with high-quality materials, this welding machine is designed to withstand the rigors of daily use, ensuring longevity and reliability over time.

In summary, the Lincoln Electric SVM154-A stands out for its portability, versatility, and user-centric design. With advanced inverter technology that promotes energy efficiency and a stability for various welding processes, it serves as a valuable tool for both professionals and hobbyists seeking to achieve high-quality welds across different applications. Its combination of advanced features, safety mechanisms, and rugged durability positions the SVM154-A as a top choice in the welding equipment market.