Lincoln Electric LF 52D Manual de usuario

IM3104

05/2020

REV03

LF 52D LF 56D

OPERATOR’S MANUAL

ENGLISH

Lincoln Electric Bester Sp. z o.o.

ul. Jana III Sobieskiego 19A, 58-263 Bielawa, Poland

www.lincolnelectric.eu

English I English

12/05

THANK YOU! For choosing the QUALITY of the Lincoln Electric products.

Please check packaging and equipment for damage. Claims for material damaged in shipment must be notified

immediately to the dealer.

For ease of use, please enter your product identification data in the table below. Model Name, Code & Serial Number

can be found on the machine rating plate.

Model Name:

………………...…………………………….…………………………………………………………………………………………..

Code & Serial number:

………………….……………………………………………….. …………………………………………………….……………..

Date & Where Purchased:

…………………………………………………………………... ……………………….…………………………………………..

ENGLISH INDEX

Technical Specifications...................................................................................................................................................... 1

Electromagnetic Compatibility (EMC).................................................................................................................................. 2

Safety.................................................................................................................................................................................. 3

Introduction ......................................................................................................................................................................... 5

Installation and Operator Instructions.................................................................................................................................. 5

WEEE ............................................................................................................................................................................... 39

Spare Parts ....................................................................................................................................................................... 39

REACh .............................................................................................................................................................................. 39

Authorized Service Shops Location .................................................................................................................................. 39

Electrical Schematic.......................................................................................................................................................... 39

Accessories....................................................................................................................................................................... 40

Connection configuration................................................................................................................................................... 42

English 1 English

Technical Specifications

NAME INDEX

LF 52D K14186-1

LF 56D K14187-1

INPUT

Input Voltage U1Input Amperes I1EMC Class

LF 52D 40Vdc 4Adc A

LF 56D

RATED OUTPUT

Duty Cycle 40°C

(based on a 10 min. period) Output Current

LF 52D 100% 420A

60% 500A

LF 56D 100% 420A

60% 500A

OUTPUT RANGE

Welding Current Range Peak Open Circuit Voltage

LF 52D 5 ÷ 500A 113Vdc peak

LF 56D

DIMENSION

Weight Height Width Length

LF 52D 17 kg 516 mm 302 mm 642 mm

LF 56D 17,7 kg

WIRE FEED SPEED RANGE / WIRE DIAMETER

WFS Range Drive Rolls Drive roll diameter

LF 52D 1.5 ÷ 22 m/min 4 Ø37

LF 56D

Solid Wires Aluminum Wires Cored Wires

LF 52D 0.8 ÷ 1.6 mm 1.0 ÷ 1.6 mm 0.9 ÷ 1.6 mm

LF 56D

Protection Rating Maximum Gas Pressure

LF 52D IP23 0,5 MPa (5 bar)

LF 56D

Operating Temperature Storage Temperature

LF 52D from -10°C to +40°C from -25°C to 55°C

LF 56D

English 2 English

Electromagnetic Compatibility (EMC)

01/11

This machine has been designed in accordance with all relevant directives and standards. However, it may still generate

electromagnetic disturbances that can affect other systems like telecommunications (telephone, radio, and television) or

other safety systems. These disturbances can cause safety problems in the affected systems. Read and understand this

section to eliminate or reduce the amount of electromagnetic disturbance generated by this machine.

This machine has been designed to operate in an industrial area. To operate in a domestic area it is necessary

to observe particular precautions to eliminate possible electromagnetic disturbances. The operator must install

and operate this equipment as described in this manual. If any electromagnetic disturbances are detected the

operator must put in place corrective actions to eliminate these disturbances, if necessary with assistance from

Lincoln Electric.

Before installing the machine, the operator must check the work area for any devices that may malfunction because of

electromagnetic disturbances. Consider the following.

Input and output cables, control cables, and telephone cables that are in or adjacent to the work area and the machine.

Radio and/or television transmitters and receivers. Computers or computer controlled equipment.

Safety and control equipment for industrial processes. Equipment for calibration and measurement.

Personal medical devices like pacemakers and hearing aids.

Check the electromagnetic immunity for equipment operating in or near the work area. The operator must be sure that

all equipment in the area is compatible. This may require additional protection measures.

The dimensions of the work area to consider will depend on the construction of the area and other activities that are

taking place.

Consider the following guidelines to reduce electromagnetic emissions from the machine.

Connect the machine to the input supply according to this manual. If disturbances occur if may be necessary to take

additional precautions such as filtering the input supply.

The output cables should be as short as possible and positioned together as close as possible to each other. If possible

connect the work piece to ground in order to reduce the electromagnetic emissions. The operator must check that

connecting the work piece to ground does not cause problems or unsafe operating conditions for personnel and

equipment.

Shielding of cables in the work area can reduce electromagnetic emissions. This may be necessary for special

applications.

WARNING

EMC classification of this product is class A in accordance with electromagnetic compatibility standard EN 60974-10 which

means that the product is designed to be used in an industrial environment only.

WARNING

The Class A equipment is not intended for use in residential locations where the electrical power is provided by the public

low-voltage supply system. There may be potential difficulties in ensuring electromagnetic compatibility in those locations,

due to conducted as well as radiated disturbances.

English 3 English

Safety

01/11

WARNING

This equipment have to be used by qualified personnel. Be sure that all installation, operation, maintenance and repair

procedures are performed only by qualified person. Read and understand this manual before operating this equipment.

Failure to follow the instructions in this manual could cause serious personal injury, loss of life, or equipment damage. Read

and understand the following explanations of the warning symbols. Lincoln Electric is not responsible for damages caused

by improper installation, improper care or abnormal operation.

WARNING: This symbol indicates that instructions must be followed to avoid serious personal injury, loss

of life, or equipment damage. Protect yourself and others from possible serious injury or death.

READ AND UNDERSTAND INSTRUCTIONS: Read and understand this manual before operating this

equipment. Arc welding can be hazardous. Failure to follow the instructions in this manual could cause

serious personal injury, loss of life, or equipment damage.

ELECTRIC SHOCK CAN KILL: Welding equipment generates high voltages. Do not touch the electrode,

work clamp, or connected work pieces when this equipment is turned on. Insulate yourself from the

electrode, work clamp, and connected work pieces.

ELECTRICALLY POWERED EQUIPMENT: Turn off the input power using the disconnect switch at the

fuse box before working on this equipment. Ground this equipment in accordance with local electrical

regulations.

ELECTRICALLY POWERED EQUIPMENT: Regularly inspect the input, electrode, and work clamp

cables. If any insulation damage exists replace the cable immediately. Do not place the electrode holder

directly on the welding table or any other surface in contact with the work clamp to avoid the risk of

accidental arc ignition.

ELECTROMAGNETIC FIELD MAY BE DANGEROUS: Electric current flowing through any conductor

creates electromagnetic field (EMF). EMF fields may interfere with some pacemakers, and welders having

a pacemaker shall consult their physician before operating this equipment.

CE COMPLIANCE: This equipment complies with the European Community Directives.

ARTIFICIAL OPTICAL RADIATION: According with the requirements in 2006/25/EC Directive and

EN 12198 Standard, the equipment is a category 2. It makes mandatory the adoption of Personal

Protective Equipment (PPE) having filter with a protection degree up to a maximum of 15, as required by

EN169 Standard.

FUMES AND GASES CAN BE DANGEROUS: Welding may produce fumes and gases hazardous to

health. Avoid breathing these fumes and gases. To avoid these dangers the operator must use enough

ventilation or exhaust to keep fumes and gases away from the breathing zone.

ARC RAYS CAN BURN: Use a shield with the proper filter and cover plates to protect your eyes from

sparks and the rays of the arc when welding or observing. To protect the skin, use suitable clothing made

of durable, fireproof material. Protect other nearby personnel with suitable, non-flammable screening and

warn them not to watch the arc nor expose themselves to the arc.

English 4 English

WELDING SPARKS CAN CAUSE FIRE OR EXPLOSION: Remove fire hazards from the welding area

and have a fire extinguisher easily accessible. Welding sparks and hot materials from the welding process

can easily go through small cracks and openings to adjacent areas. Do not weld on any tanks, drums,

containers, or material until the proper steps have been taken to insure that no flammable or toxic vapors

will be present. Never use this equipment when flammable gases, vapors or flammable liquids are

present.

WELDED MATERIALS CAN BURN: Welding generates a large amount of heat. Hot surfaces and

materials in work area can cause serious burns. Use gloves and pliers when touching or moving

materials in the work area.

CYLINDER MAY EXPLODE IF DAMAGED: Use only certificate, compressed gas cylinders containing

the correct shielding gas for the process used and properly operating regulators designed for the gas and

pressure used. Always keep cylinders in an upright position securely chained to a fixed support. Do not

move or transport gas cylinders with the protection cap removed. Do not allow the electrode, electrode

holder, work clamp or any other electrically live part to touch a gas cylinder. Gas cylinders must be

located away from areas where they may be subjected to physical damage or the welding process

including sparks and heat sources.

MOVING PARTS ARE DANGEROUS: There are moving mechanical parts in this machine, which can

cause serious injury. Keep your hands, body and clothing away from those parts during machine starting,

operating and servicing.

SAFETY MARK: This equipment is suitable for supplying power for welding operations carried out in an

environment with increased risk of electric shock.

The manufacturer reserves the right to make changes and/or improvements in design without upgrade at the same time the

operator’s manual.

English 5 English

Introduction

LF 52D and LF 56D are digital wire feeders which have

been designed to work with Lincoln Electric power

sources:

POWERTEC®i350S,

POWERTEC®i420S,

POWERTEC®i500S.

The CAN protocol is used for communication between the

power source and the wire feeder. All signals from the

power source are displayed on the User Interface located

in the wire feeder machine.

Power source – wire feeder set allow the welding:

GMAW (MIG/MAG)

FCAW

SMAW (MMA)

The complete package contains:

Wire feeder device

USB with operator’s manual

Lifting sling

Abridged manual.

Recommended equipment, which can be bought by user,

was mentioned in the chapter "Accessories".

Installation and Operator Instructions

Read this entire section before installation or operating the

machine.

Exploitation conditions

This machine can operate in harsh environments.

However, it is important to use the following simple

preventive measures that will ensure its long life and

reliable operation:

Do not place or operate this machine on a surface with

an incline higher than 15° from horizontal.

Do not use this machine for pipe thawing.

This machine must be located where there is free

circulation of clean air without restrictions for air

movement. Do not cover the machine with paper, cloth

or rags when switched on.

Dirt and dust that can be drawn into the machine

should be kept to a minimum.

This machine has a protection rating of IP23. Keep it

dry when possible and do not place it on wet ground

or in puddles.

Locate the machine away from radio controlled

machinery. Normal operation may adversely affect

the operation of nearby radio controlled machinery,

which may result in injury or equipment damage.

Read the section on electromagnetic compatibility in

this manual.

Do not operate in areas with an ambient temperature

greater than 40°C.

Duty cycle and Overheating

The duty cycle of a welding machine is the percentage of

time in a 10 minute cycle at which the welder can operate

the machine at rated welding current.

Example: 60% duty cycle:

Welding for 6 minutes. Break for 4 minutes.

Excessive extension of the duty cycle will cause the

thermal protection circuit to activate.

Minutes or decrease

Duty Cycle

Input Supply Connection

Check the input voltage, phase, and frequency of the

power source that will be connected to this wire feeder.

The acceptable level of input voltage is indicated in the

section „Technical Specifications” and on the rating plate

of the power source. Verify the connection of grounding

wires from the power source to the input source.

English 6 English

Controls and Operational Features

Front panel LF 52D

2 3

Figure 1

Front panel LF 56D

2 3

Figure 2

1. EURO socket: For connecting a welding gun

(for GMAW, FCAW process).

2. Quick coupling socket: Coolant outlet

(supplies cool coolant to the welding gun).

3. Quick coupling socket: Coolant inlet (takes

warm coolant from the welding gun).

WARNING

Maximum coolant pressure is 5 bar.

4. Output Socket for the Welding Circuit: For

connecting a wire with an electrode holder.

5. U0 User Interface (LF 52D): See „User Interface”

section.

6. Remote Control Connector Plug (LF 56D

only): For connecting a Remote Control Kit

or Cross Switch welding gun.

7. U7 User Interface (LF 56D): See „User Interface”

section.

Back panel LF 52D, LF 56D

Figure 3

8. Gas quick coupling socket: For connecting a

gas pipe.

WARNING

The machine allows the use all suitable shielding gases

with a maximum pressure of 5 bar.

9. Control Socket: 5 pins socket for connecting

the power source. The CAN protocol is used

for communication between the power

source and wire feeder.

10. Current Socket:

For connecting a welding cable.

11. Quick coupling socket: Coolant inlet

(supplies cool coolant from cooler to the

welding machine).

12. Quick coupling socket: Coolant outlet (takes

warm coolant from welding machine to

cooler).

13. Gas Flow Regulator Plug: Gas Flow Regulator can

be purchased separately. See "Accessories" section.

14. Switch: wire feed / gas purge: This switch allows wire

feeding (wire test) and gas flow (gas test) without

switching on the output voltage.

English 7 English

15. USB port (LF 56D only): For connecting the USB

memory and software updates.

16. Wire Spool Holder: For wire spool with maximum

16kg weight. Holder allows mounting plastic, steel

and fiber spools on the 51mm spindle.

WARNING

Be sure that wire spool case has to be completely closed

during welding.

17. Spool with wire: Not supplied as standard.

18. Wire drive: 4-rolls wire drive.

WARNING

The side panel and wire spool case have to be completely

closed during welding.

WARNING

Do not use handle to move the machine during operation.

See "Accessories" section.

LF 52D

13 14 16 17

Figure 4

LF 56D

13 14 16 17

Figure 5

User Interface

Wire feeder LF 52D is based on a standard interface (U0)

with two separate LED displays, while the LF 56D is

based on a 7’’ TFT display.

Standard Interface (U0)

26 19 25 24 19

23 22 30

Figure 6

19. Display:

Left display: Shows wire feed speed or welding

current. During welding shows the actual welding

current value.

Right display: Shows the welding voltage in volts

units or tuning value (Trim). During welding shows

the actual welding voltage value.

20. Left Knob: Adjusts values on the left display.

21. Right Knob: Adjusts values on the right display.

22. Right Button: Enables scrolling, changing and setting

welding parameters. Quick access.

23. Left Button: Enables changing the welding process

and shielding gas.

24. Thermal Overload Indicator: It indicates that the

machine is overloaded or that the cooling is not

sufficient.

25. Status Indicator: A two color light that indicates

system errors. Normal operation is steady green

light. LED light conditions and their meanings are

described in Table 1.

WARNING

The status light will flash green, and sometimes red and

green when the machine is first turned on. When the

power source is powered it can take as long as 60

seconds for the machine to be ready to weld. This is a

normal situation as the machine goes through

initialization.

English 8 English

Table 1 LED Light Conditions

LED Light

Condition

Meaning

Only machines which using CAN

protocol for communication

Steady Green

Correct operation mode. The power

source communicates normally with

all peripheral equipment.

Blinking Green

Occurs during a system reset, and

indicates that the power source is

mapping (identifying) additional

connected components in the system.

This condition occurs for 1-10

seconds after connecting the power

supply or when the system

configuration is changed during

operation.

Alternating

Green and Red

If the status lights are flashing any

combination of red and green color, it

means that an error is present in the

machine.

Each digit of the code represents the

number of red flashes of the indicator

light. Individual code digits are flashed

in red with a long pause between

digits. If more than one code is

present, the codes will be separated

by green light. Read the error code

before you turn of the machine.

To clear the error, turn off the

machine, wait a few seconds, and

then turn on the machine again. If the

error remains, a maintenance is

required. Please contact the nearest

authorized service center or Lincoln

Electric and report the error code.

Steady Red Indicate no communication in CAN

protocol.

26. LED Indicator: Informs that the left display shows the

wire feed speed.

27. LED Indicator: Informs that the left display shows the

ampere units.

28. LED Indicator: Informs that the right display shows

the volts units.

29. Welding Programs Indicators: LED light indicate the

active manual weld mode. See Table 2.

30. Welding Parameters Indicators: LED light indicate

the active weld parameters. See Table 3.

Welding process change

It is possible to quick recall of one of the six manual

welding programs - Table 2.

Table 2 Manual Weld Modes:

Symbol LED Process

GMAW

GMAW MIX

GMAW CO2

GMAW AR

FCAW

FCAW MIX

FCAW CO2

SMAW

To set the welding process:

Press the left button [23], to select the right weld mode

– LED of the current program flashes.

Again press the left button, the active weld mode

indicator will skip to the next program.

WARNING

During switching the displays show a “dotted line” on the

screen.

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