SPOT
COLD FEED
2-STEP STD
4-STEP LOCK

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OPERATION

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Trigger Mode Selection

Display Control Keys

 

Trigger Mode Select key TRIGGER - enables operator to choose mode of operation

shown by the indicator

lights. Pressing key caus- es mode lights to sequence (top to bottom) starting from the current

indicated selection.

Top Light - Indicates gun trigger has been selected to perform the Cold Feed Forward function in exactly the same manner as Cold Feed Forward key (See Operation Keys - Cold Feed Keys) with the same memory stored adjustable speed setting, and “Cld”

TIMER Timer Select key - enables operator to choose burnback, spot or gas timers, as indicated by the appropriate light. Pressing the key causes lights to sequence (top to bottom, then all off) starting from the

current indicated selection.

When a timer is selected the Voltage display shows the time setting in seconds, as indicated by “SEC” dis- played on the speed display. The times are set using the Voltage encoder knob.

Top Light - indicates preflow time PREFLOW is being displayed, settable 0.0 to

shown on the Voltage display.

SPOT

2.5 seconds (0.2 sec as shipped).

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Second Light - indicates 2-step (standard) trigger mode.

1.Trigger closure energizes the solenoid valve, then the wire feeder and the power source after Preflow time.

2.Releasing the trigger turns off the wire feeder, then power source after burnback time and then the gas solenoid valve after Postflow time.

Third Light - indicates 4-step (lock) trigger mode. This mode may be selected to include or exclude weld current interlock. (See “4-Step Trigger Mode Operation Selectionin this section for 4 step Trigger Mode operation)

Bottom Light - indicates Spot Weld Mode, which will only light if a spot time is set (See “Display Control Keys” in this section). If set to 0.0 seconds, spot mode light selection will be skipped. Trigger closure energizes the gas solenoid valve, then wire feeder and the power source. The spot timer starts when current flows. The wire feeder and power source then solenoid valve are all turned off when the spot on timer times out even though the trigger is opened or is still closed. Preflow/Postflow and burnback timers are also functional in spot mode. (See “Display Control Keys” in this section).

This is the time the shielding gas

BURNBACK flows before the wire feed and 2 POSTFLOW power source are activated.

Second Light - indicates spot time is being displayed, settable 0.0 (as shipped) to 199.9 seconds.

Third Light - indicates burnback time is being dis- played, settable 0.00 (as shipped) to 0.25 seconds. This is the time the arc power is delayed at the stop of the weld, and should be set to the lowest time required to prevent the wire sticking in the weld.

Bottom Light - indicates postflow time is being dis- played, settable 0.0 to 10.0 seconds (0.5 sec as shipped).

This is the time the shielding gas flows after the wire feed and power source are deactivated.

Pressing Timer Select Key again, or closing the gun trigger, shuts all timer lights off, indicating weld Voltage and Wire Feed Speed are again being dis- played, and set by the appropriate encoder knob.

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Lincoln Electric SVM154-A service manual Trigger Mode Selection Display Control Keys

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.