Lincoln Electric OERLIKON CITOSTEEL 250C User manual

IM3151
02/2023
REV05
CITOSTEEL 250C, 320C
CITOSTEEL 250C PRO, 320C PRO
CITOSTEEL 380C PRO, 450C PRO
OPERATOR’S MANUAL
ENGLISH
Lincoln Electric Bester Sp. z o.o.
ul. Jana III Sobieskiego 19A, 58-260 Bielawa, Poland

English I English
12/05
THANKS! For having choosen the QUALITY of the Lincoln Electric products.
Please Examine Package and Equipment for Damage. Claims for material damaged in shipment must be notified
immediately to the dealer.
For future reference record in the table below your equipment identification information. 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
ECO design information ...............................................................................................................................................................4
Electromagnetic Compatibility (EMC) ..........................................................................................................................................6
Safety............................................................................................................................................................................................7
Introduction...................................................................................................................................................................................9
Installation and Operator Instructions ..........................................................................................................................................9
WEEE .........................................................................................................................................................................................26
Spare Parts.................................................................................................................................................................................26
REACh........................................................................................................................................................................................26
Authorized Service Shops Location...........................................................................................................................................26
Electrical Schematic ...................................................................................................................................................................26
Accessories ................................................................................................................................................................................27

English 1 English
Technical Specifications
NAME INDEX
CITOSTEEL 250C W100000096
CITOSTEEL 250C PRO W100000097
CITOSTEEL 320C W100000098
CITOSTEEL 320C PRO W100000099
CITOSTEEL 380C PRO W100000100
CITOSTEEL 450C PRO W100000101
INPUT
Input Voltage U1EMC Class Frequency
250C
400V ± 15%, 3-phase A 50/60Hz
250C PRO
320C
320C PRO
380C PRO
450C PRO
Input Power at Rated Cycle Input Amperes I1max PF
250C 10,3 kVA @ 60% Duty Cycle (40°C) 14,7A 0,85
250C PRO
320C 13,6 kVA @ 40% Duty Cycle (40°C) 19,6A 0,90
320C PRO
380C PRO 17,1 kVA @ 40% Duty Cycle (40°C) 26 A 0,92
450C PRO 20,7 kVA @ 80% Duty Cycle (40°C) 30 A 0,92
RATED OUTPUT
250C
250C PRO
Process Open Circuit
Voltage
Duty Cycle 40°C
(based on a 10 min.
period)
Output Current Output Voltage
GMAW
49Vdc
60% 250A 26,5Vdc
100% 195A 23,8Vdc
FCAW 60% 250A 26,5Vdc
100% 195A 23,8Vdc
SMAW 60% 250A 30Vdc
100% 195A 27,8Vdc
320C
320C PRO
GMAW
49Vdc
40% 320A 30Vdc
60% 250A 26,5Vdc
100% 195A 23,8Vdc
FCAW
40% 320A 30Vdc
60% 250A 26,5Vdc
100% 195A 23,8Vdc
SMAW
40% 320A 32,8Vdc
60% 250A 30Vdc
100% 195A 27,8Vdc

English 2 English
380C PRO
GMAW
54Vdc (peak)
48Vdc (RMS)
40% 380A 33,0Vdc
60% 320A 30,0Vdc
100% 240A 26,0Vdc
FCAW
40% 380A 33.0Vdc
60% 320A 30,0Vdc
100% 240A 26,0Vdc
SMAW
40% 380A 35,2Vdc
60% 320A 32,8Vdc
100% 240A 29,6Vdc
450C PRO
GMAW
60Vdc (peak)
49Vdc (RMS)
80% 450A 36,5Vdc
100% 420A 35,0Vdc
FCAW 80% 450A 36,5Vdc
100% 420A 35,0Vdc
SMAW 80% 450A 38,0Vdc
100% 420A 36,8Vdc
WELDING CURRENT RANGE
GMAW FCAW SMAW
250C 10A÷250A 10A÷250A 10A÷250A
250C PRO 10A÷250A 10A÷250A 10A÷250A
320C 10A÷320A 10A÷320A 10A÷320A
320C PRO 10A÷320A 10A÷320A 10A÷320A
380C PRO 20A÷380A 20A÷380A 10A÷380A
450C PRO 20A÷450A 20A÷450A 10A÷450A
RECOMMENDED INPUT CABLE AND FUSE SIZES
Fuse Type gR or Circuit Breaker Type Z Power Lead
250C 16A, 400V AC 4 Conductor, 2,5mm2
250C PRO 16A, 400V AC 4 Conductor, 2,5mm2
320C 20A, 400V AC 4 Conductor, 2,5mm2
320C PRO 20A, 400V AC 4 Conductor, 2,5mm2
380C PRO 25A, 400V AC 4 Conductor, 2,5mm2
450C PRO 32A, 400V AC 4 Conductor, 4,0mm2
WELDING VOLTAGE REGULATION RANGE
GMAW FCAW
250C 10V÷ 28,5V 10V÷ 28,5V
250C PRO
320C 10V÷ 32V 10V÷ 32V
320C PRO
380C PRO 10V÷ 35V 10V÷ 35V
450C PRO 10V÷ 38,5V 10V÷ 38,5V

English 3 English
WIRE FEED SPEED RANGE / WIRE DIAMETER
WFS Range Drive Rolls Drive roll diameter
250C
1,5 ÷ 20,32m/min 4 Ø37
250C PRO
320C
320C PRO
380C PRO
450C PRO
Solid Wires Aluminum Wires Cored Wires
250C
0,8 ÷ 1,2 mm 1,0 ÷ 1,2 mm 0,9 ÷ 1,2 mm
250C PRO
320C
320C PRO
380C PRO 0,8 ÷ 1,4 mm 1,0 ÷ 1,2 mm 0,9 ÷ 1,4 mm
450C PRO 0,8 ÷ 1,6 mm 1,0 ÷ 1,6 mm 0,9 ÷ 1,6 mm
DIMENSION
Weight Height Width Length
250C 69 kg
878 mm 560 mm 935 mm
250C PRO 70 kg
320C 69 kg
320C PRO 70 kg
380C PRO 70 kg
450C PRO 82 kg
OTHERS
Protection Rating Maximum Gas Pressure Operating Humidity (t=20°C)
250C
IP23 0,5MPa (5 bar) ≤90 %
250C PRO
320C
320C PRO
380C PRO
450C PRO
Operating Temperature Storage Temperature
250C
from -10°C to +40°C from -25°C to 55°C
250C PRO
320C
320C PRO
380C PRO
450C PRO

English 4 English
ECO design information
The equipment has been designed in order to be compliant with the Directive 2009/125/EC and the Regulation
2019/1784/EU.
Efficiency and idle power consumption:
Index Name Efficiency when max power
consumption / Idle power consumption Equivalent model
W100000096 CITOSTEEL 250C 87,2% / 27W No equivalent model
W100000097 CITOSTEEL 250C PRO 87,2% / 27W No equivalent model
W100000098 CITOSTEEL 320C 87,2% / 27W No equivalent model
W100000099 CITOSTEEL 320C PRO 87,2% / 27W No equivalent model
W100000100 CITOSTEEL 380C PRO 86,2% / 29W No equivalent model
W100000101 CITOSTEEL 450C PRO 88,3% / 29W No equivalent model
Idle state occurs under the condition specified in below table
IDLE STATE
Condition Presence
MIG mode X
TIG mode
STICK mode
After 30 minutes of non-working
Fan off X
The value of efficiency and consumption in idle state have been measured by method and conditions defined in the product
standard EN 60974-1:20XX.
Manufacturer’s name, product name, code number, product number, serial number and date of production can be read from
rating plate.
XXXXXXXXXX
Code: XXXXX XXXXXX-X
S/N: P1YYMMXXXXX
12
34
5
P1 YY MM XXXXX
5A5A 5B 5D5C
XXXXXXX
Where:
1- Manufacturer name and address
2- Product name
3- Code number
4- Product number
5- Serial number
5A- country of production
5B- year of production
5C- month of production
5D- progressive number different for each machine

English 5 English
Typical gas usage for MIG/MAG equipment:
Material type
Wire
diameter
[mm]
DC electrode positive Wire Feeding
[m/min] Shielding Gas Gas flow [l/min]
Current
[A]
Voltage
[V]
Carbon, low
alloy steel 0,9 ÷ 1,1 95 ÷ 200 18 ÷ 22 3,5 – 6,5 Ar 75%, CO225% 12
Aluminium 0,8 ÷ 1,6 90 ÷ 240 18 ÷ 26 5,5 – 9,5 Argon 14 ÷ 19
Austenic
stainless steel 0,8 ÷ 1,6 85 ÷ 300 21 ÷ 28 3 - 7 Ar 98%, O22% / He 90%, Ar 7,5% CO22,5% 14 ÷ 16
Copper alloy 0,9 ÷ 1,6 175 ÷ 385 23 ÷ 26 6 - 11 Argon 12 ÷ 16
Magnesium 1,6 ÷ 2,4 70 ÷ 335 16 ÷ 26 4 - 15 Argon 24 ÷ 28
Tig Process:
In TIG welding process, gas usage depends on cross-sectional area of the nozzle. For commonly used torches:
Helium: 14-24 l/min
Argon: 7-16 l/min
Notice: Excessive flow rates causes turbulence in the gas stream which may aspirate atmospheric contamination into the
welding pool.
Notice: A cross wind or draft moving can disrupt the shielding gas coverage, in the interest of saving of protective gas use
screen to block air flow.
End of life
At end of life of product, it has to be disposal for recycling in accordance with Directive 2012/19/EU (WEEE), information
about the dismantling of product and Critical Raw Material (CRM) present in the product, can be found at
https://www.lincolnelectric.com/en-gb/support/Pages/operator-manuals-eu.aspx

English 6 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.
WARNING
Provided that the public low voltage system impedance at the point of common coupling is lower than:
56,4 mΩfor the CITOSTEEL 250C
56,4 mΩfor the CITOSTEEL 250C PRO
56,4 mΩfor the CITOSTEEL 320C
56,4 mΩfor the CITOSTEEL 320C PRO
56,4 mΩfor the CITOSTEEL 380C PRO
23 mΩfor the CITOSTEEL 450C PRO
This equipment is compliant with IEC 61000-3-11 and IEC 61000-3-12 and can be connected to public low voltage systems.
It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network
operator if necessary, that the system impedance complies with the impedance restrictions.
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 7 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 8 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.
HOT COOLANT CAN BURN SKIN: Always be sure coolant is NOT HOT before servicing the cooler.
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 9 English
Introduction
General Description
The welding machines CITOSTEEL 250C
CITOSTEEL 250C PRO
CITOSTEEL 320C
CITOSTEEL 320C PRO
CITOSTEEL 380C PRO
CITOSTEEL 450C PRO
enables welding:
GMAW (MIG/MAG),
FCAW (Flux-Cored),
SMAW (MMA).
The complete package contains:
Work lead – 3m,
Gas hose – 2m,
Driving roll V1.0/V1.2 for solid wire (mounted in the
wire feeder).
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 operation of
the machine.
Location and Environment
This machine will operate in harsh environments.
However, it is important that simple preventative
measures are followed to assure long life and reliable
operation.
Do not place or operate this machine on a surface with
an incline greater 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 to and from the air vents. 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
WARNING
Only a qualified electrician can connect the welding
machine to the supply network. Installation had to be
made in accordance with the appropriate National
Electrical Code and local regulations.
Check the input voltage, phase and frequency supplied to
this machine before turning it on. Verify the connection of
ground wires from the machine to the input source. The
welding machine CITOSTEEL 250C, CITOSTEEL 250C
PRO, CITOSTEEL 320C, CITOSTEEL 320C PRO,
CITOSTEEL 380C PRO, CITOSTEEL 450C PRO must
be connected to a correctly installed plug-in socket with an
earth pin.
Input voltage is 400Vac 50/60Hz. For more information
about input supply refer to the technical specification
section of this manual and to the rating plate of the
machine.
Make sure that the amount of mains power available from
the input supply is adequate for normal operation of the
machine. The necessary delayed fuse or circuit breaker
and cable sizes are indicated in the technical specification
section of this manual.
WARNING
The welding machine can be supplied from a power
generator of output power at least 30% larger than input
power of the welding machine.
WARNING
When powering the machine from a generator be sure to
turn off welder first, before generator is shut down, in
order to prevent damage to welder!

English 10 English
Output Connections
Refer to points [2], [3] and [4] of the Figures below.
Controls and Operational Features
Front panel CITOSTEEL 250C & 320C
Basic Version
3
1
6
24
5
Figure 1
Front panel CITOSTEEL 250C & 320C
Pro Version
4
1
2
3
7
5
Figure 2
Front panel CITOSTEEL 380C& 450C
Pro Version
8
9
10
1
2
3
4
5
7
Figure 3
1. Power Switch ON/OFF (I/O): Controls the input power
to the machine. Be sure the power source is
connected to the mains supply before turning power
on ("I"). After input power is connected and the power
switch is turned on, the indicator will light up.
2. Negative Output Socket for the Welding
Circuit: For connecting an electrode holder
with lead / work lead depending on the require
configuration.
3. Positive Output Socket for the Welding
Circuit: For connecting an electrode holder
with lead / work lead depending on the
require configuration.
4. EURO Socket: For connecting a welding gun (for
GMAW / FCAW process).
5. Remote Control Connector Plug: To install Remote
Control Kit. This connector allows connection Remote
Control. See "Accessories" chapter.
6. U22 User Interface: See “User Interfaces” Chapter.
7. U7 User Interface: See User Interfaces chapter
8. Display Cover. Display protection for U7.
9. Quick Connect Coupling: Coolant outlet
(supplies cool coolant to the torch/gun).
10. Quick Connect Coupling: Coolant inlet (takes
warm coolant from torch/gun).

English 11 English
Rear Panel CITOSTEEL 250C & 320C
11
12
17
16
15
14
18
19
13
Figure 4
Rear Panel CITOSTEEL 380C& 450C
11
12 14
15
16
17
18
19
20
21
22
Figure 5
11. Wire Liner Entry: Enables installing liner for welding
wire delivered in drum package.
12. Top Chain: To protect gas bottle.
13. Bottom chain: For properly securing the gas cylinder
14. Supply Plug: For gas heater kit (see “Accessories”
chapter).
15. Power Lead (5m): Connect the supply plug to the
existing input cable that is rated for the machine as
indicated in this manual, and conforms to all applicable
standards. This connection shall be performed by a
qualified person only.
16. Gas Connector: Connection for gas line.
17. Gas Flow Regulator Plug: Gas flow regulator can be
purchased separately (see “Accessories” chapter).
18. Gas hose
19. Work Lead
20. Cover bracket: To install COOL ARC® 26 power
supply and control cable (see "Accessories
Suggested" chapter).
21. Quick Connect Coupling: Coolant inlet
(supplies cool coolant to the torch/gun).
22. Quick Connect Coupling: Coolant outlet
(takes warm coolant from torch/gun).
Internal Controls
23
24
25
26 27
28
29
Figure 6
23. Spooled Wire (for GMAW / FCAW): Not supplied as
standard.
24. Wire Spool Holder: Maximum 16kg spools. Holder
allows mounting plastic, steel and fiber spools onto 51
mm spindle.
Note: Plastic Brake Nut has a Left-hand thread.
25. Switch: Cold Inch / Gas Purge: This switch allows wire
feeding (wire test) and gas flow (gas test) without
switching on the output voltage.
26. Wire drive: 4-rolls wire drive.
27. Terminal Block of Changing Polarity Plug (for GMAW /
FCAW-SS process): This terminal block enables to set
the welding polarity (+ ; -), which will be given at the
welding gun
28. USB Receptacle Type A: For USB memory stick
connection. For machine software update and service
purpose, video playing.
29. Fuse F1: Use the low blow fuse:
CITOSTEEL
250C 320C 380C 450C
1A / 400V
(6,3x32mm)
1A / 400V
(6,3x32mm)
2A / 400V
(6,3x32mm)
2A / 400V
(6,3x32mm)

English 12 English
User Interface (U22)
CITOSTEEL 250C & 320C uses the U22 interface based
on two separate LED displays for operation.
30 31 32 33 34
35
36
373839404142
43
44
45
Figure 7
30. Left Display: Shows wire feed speed or welding
current. During welding shows the actual welding
current value.
31. Status LED: A two color light that indicates system
errors. Normal operation is steady green light. Error
conditions are indicated, per Table 1.
Note: The status light will flash green for up to one minute
when the machine is turned on for the first time. When the
power source is powered it can take as long as up to 60
seconds for the machine to be ready to weld. This is a
normal situation as the machine goes through the
initialization.
Table 1
LED Light
Condition
Meaning
Only for machines using 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 between
the power source and device which
has been connected to this power
source.

English 13 English
32. Thermal Overload Indicator: It indicates that the
machine is overloaded or that the cooling is not
sufficient.
33. Right Display: Depending on the source welding and
the welding program shows the welding voltage in
volts or Trim value. During welding shows the actual
welding voltage value.
34. LED Indicator: Informs that the value on the right
display is in volts unit and during welding, it blinks and
the display shows the measured voltage.
35. LED Indicator: Informs that the value on the right
display is Trim. Trim is adjustable from 0.50 to 1.50.
1.00 is the nominal setting.
36. Right Control: Adjusts values on the right display.
37. LED Indicator: Quick Access Menu.
38. Right Button: Enables selecting, changing and setting
welding parameters. Quick Access Menu.
39. LED Indicator: Indicates that the Settings and
Configuration Menu is activated.
40. Left Button: Enables:
Checking the active program number. To check
the program number, press the left button once.
Changing the Welding Process.
41. Welding Programs Indicators (customizable): Four
user programs can be stored in the user memory.
Shine LED indicates that the program is active.
42. Welding Programs Indicators (uncustomizable): LED
indicates the program for non-synergic process is
active. See the table 2.
43. Left Control: Adjusts values on the left display.
44. LED Indicator: Informs that the value on the left
display is in ampere units, blinks during welding and
the display shows current measured. .
45. LED Indicator: Informs that the wire feed speed is on
the left display.

English 14 English
Changing the Welding Process or
Program
Table 2 Unchangeable Welding Programs
Symbol Process Program Number
GMAW
(non-synergic) 2
FCAW-GS 7
SMAW 1
It is possible to quick recall one of the seven welding
programs. Three programs are fixed and cannot be
changed - Table 2. Four programs can be changed and
assigned to one of four user memory. By default, user
memories store the first available welding program.
To change the welding process:
Press the left button [40]. "Pr" is shown on the left
display [30] and the actual program number on the
right display [33].
Again, press the left button [40] the welding programs
indicator (41 or 42) will pass to the next program in the
sequence shown in Figure 8.
Figure 8
Press the left button [40] until the LED Indicator (41 or
42) will indicate desired welding program.
WARNING
After the device has been restarted remembers the last
selected welding program with its parameters.
U22 User Memory
In user memory only four welding programs can
be stored.
To assign the weld program to user memory:
Use the left button [40] to select the user memory
number (1, 2, 3 or 4) - LED Indicator [41] will light up
selected memory.
Press and hold the left button [40] it until LED Indicator
[41] will blink.
Use the right control [36] to select the welding
program.
To save the selected program, press and hold the left
button [40] until LED Indicator will stop blinking.
Quick Access Menu
The user has access to the arc parameters as well as
start and end process parameters according to Table 3
and 4.
Figure 9
To enter the menu:
Press the right button [38] until the LED Indicator [37]
illuminates the required parameter.
Set the parameter value by the right control [36]. The
set value is automatically saved.
The parameter value is shown on the right display
[33].
Press the right button [38] to go to the next parameter.
Press the left button [40] to exit.
WARNING
Access to the menu is not available under welding, or if
there is a fault (status LED [31] is not solid green).
Availability of the parameters in the Quick Access Menu
depend on the selected welding program / welding
process.

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Table 3 Wave Controls
Parameter Definition
Pinch
–
controls the arc characteristics during
short-arc welding. Increasing Pinch value results
in a crisper arc (more spatter) while decreasing
provides a softer arc (less spatter).
Regulation range: from -10.0 to +10.0.
Default value: 0.
A
RC FORCE - the output current is temporarily
increased prevents the electrode from sticking
and facilitates the welding process.
Lower values will provided less short circuit
current and a softer arc. Higher settings will
provided a higher short circuit current, more
forceful arc and possibly of more spatter.
Default value: 0.
Regulation range: from -10.0 to +10.0
HOT START - percentage regulation of
increasing nominal current value during arc start
with electrode. It cause temporarily increased of
output current and made easy arc start with
electrode.
Default value: +5.
Regulation range: from 0 to +10.0.
This parameter is only for SMAW.
Table 4 Process start and end parameters
Parameter Definition
Torch trigger mode (2-step / 4
-
step)
-
change
the function of the torch trigger.
2 Step trigger operation turns welding on and
off as direct response to the trigger. Welding
process starts when the torch trigger is press.
4-Step mode allows to continue welding,
when the torch trigger is released. To stop
welding, the torch trigger should be pressed
again.4-step model facilitates to make long
welds.
Default settings: 2-step
Run
-
in WFS
–
sets the wire feed speed from the
time the torch trigger is pressed until an arc is
established.
Regulation range: from 1,49 m/min (59
in/min) to 3,81 m/min (150 in/min).
Default settings for non-synergic mode: OFF.
Default settings for synergic mode: AUTO
mode.
Burnback Time
–
amount of time that the
welding is continued after the wire stops feeding.
It prevents the wire from sticking in the puddle
and prepares the end of the wire for the next arc
ignition.
Regulation range: from OFF to 0,25 seconds.
Default settings for non-synergic mode:
0,07s.
Default settings for synergic mode: AUTO
mode.

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Setting and Configuration Menu
To access the menu, press the left [40] and the right [38]
buttons simultaneously.
Parameter Selection Mode – the Parameter Name on the
left display [30] blinking.
Parameter Change Value Mode – the parameter value on
the right display [33] blinking.
WARNING
To exit the menu with changes saved, press the left [40]
and the right [38] buttons simultaneously.
After one minute of inactivity the Menu without saving will
also exit.
Table 5 Interface Components and functions when the Settings and Configuration Menu is active.
30 33
36
38
39
40
43
Figure 10
Functions of Interface Components
30. Parameter Name.
33. Parameter Value.
36. Changing Parameter Value.
38. Entering to parameter edition. Confirm
Parameter Value change.
39. Setting and Device Configuration
Menu is active.
40. Cancelation / Exit.
43.Parameter Selection.
BASE LEVEL
ADVANCED
LEVEL
Figure 11
User has access to two menu levels:
Basic Level – basic menu which is connected with
settings of Welding Parameters.
Advanced Level – advanced menu, configure device
menu.
Note: The availability parameters in the Setting and
Configuration Menu depend on the selected welding
program / welding process.
Note: After the device has been restarted remembers the
last selected welding program with its parameters.
Basic Menu (settings related to the welding’s
parameters)
The Basic Menu includes the parameters described in
Table 6.

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Table 6 The default settings of Configuration Menu
Parameter Definition
Preflow Time
–
time that shielding gas flows after the torch
trigger was pressed before prior to wire feeding.
Regulation range: from 0 seconds (OFF) to 25 seconds.
Default settings for non-synergic mode: 0,2s.
Default settings for synergic mode: AUTO mode.
Postflow Time
–
time that shielding gas flows after stop
welding.
Regulation range: from 0 seconds (OFF) to 25 seconds.
Default settings for non-synergic mode: 0,5s.
Default settings for synergic mode: AUTO mode.
Spot Time
r
– sets the total welding time even if the torch trigger
is still pressed. This function does not work in 4-Step Trigger
Mode.
Regulation range: from 0 second (OFF) to 120 seconds.
Default settings: OFF.
Note: Spot Timer has no effect in 4-Step Trigger Mode.
Crater Procedure controls the WFS (or value in ampere) and
Volts (or Trim) for a specified time at the end of the welding after
the trigger was released. During the crater time, the machine
will ramp up or down from the Weld Procedure to the Crater
Procedure.
Adjust time range: from 0 seconds (OFF) to 10 seconds.
Default settings: OFF.
Crater parameters:
Crater time
Wire feed speed or welding current.
Voltage Trim value.
To set a crater for a selected process:
Press the right button [38].
"SEC" appears on the left display [30].
On the right display [33] the value in seconds flashes.
Set the crater time with the right control [36].
Confirm the setting of the crater time with the right button
[38].
The left display [30] shows the value of the wire feed speed
or welding current, the right display [33] shows the voltage
or the Trim value.
Set the value on the left display [30] by the left control [43].
Set the value on the right display [33] with the right control
[36].
Confirm the settings - press the right button [38].

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Green Mode
–
is a power management feature that enables
welding equipment to switch to low power state and reduce
power consumption while is not using.
Display Configuration Settings:
Standby
Shutdown
Standby – this option allows you to reduce energy consumption
to the level below 50W when the welding equipment is unused.
Default value: OFF.
To set the time for Standby option:
Press right control [36] to enter in to Standby menu
By the right control [36] set require time from 10-300min
range or Off this function.
Press right control [36] to confirm.
When machine is under Standby mode any action on user
interface or trigger activates normal work of welding
machine.
Shutdown – this option allows you to reduce energy
consumption to the level below 10W when the welding
equipment is unused.
Default value: OFF.
To set the time when Shutdown option will be turn on:
Press right control [36] to enter in to Shutdown menu
By the right control [36] set require time from 10-300min
range or Off this function.
Press right control [36] to confirm.
Operating system inform you 15s before activate Shutdown
Mode by time counter.
Note: When machine is under Shutdown mode it is required to
switch the machine off and on to activate normal operation.
Note: Under Standby and Shutdown displays are disabled.
Advanced Menu – Device Configuration Menu.
Note: To access to advanced menu:
In Base Menu select the Advanced Menu (Adv).
Use the right button to confirm the selection.