Lincoln Electric POWERTEC i400S User manual

IM3132
04/2020
REV00
POWERTEC®i400S
OPERATOR’S MANUAL
ENGLISH
Lincoln Electric Bester Sp. z o.o.
ul. Jana III Sobieskiego 19A, 58-263 Bielawa, Poland
www.lincolnelectric.eu

English English
I
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
Electromagnetic Compatibility (EMC).................................................................................................................................. 2
Safety.................................................................................................................................................................................. 3
Intoduction........................................................................................................................................................................... 5
Installation and Operator Instructions.................................................................................................................................. 5
WEEE ................................................................................................................................................................................. 9
Spare Parts ......................................................................................................................................................................... 9
REACh ................................................................................................................................................................................ 9
Authorized Service Shops Location .................................................................................................................................... 9
Electrical Schematic............................................................................................................................................................ 9
Accessories Suggested..................................................................................................................................................... 10
Connection configuration................................................................................................................................................... 11

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1
Technical Specifications
NAME INDEX
POWERTEC®i400S K14241-1
INPUT
Input Voltage U1EMC Class Frequency
400V ± 15% 3-phase A 50/60Hz
Input Power at Rated Cycle Input Amperes I1max PF
15 kVA @ 50% Duty Cycle (40°C) 21A 0,90
Efficiency Idle Power
85% 35W
RATED OUTPUT
Open Circuit Voltage
Duty Cycle 40°C
(based on a 10 min.
period)
Output Current Output Voltage
U0peak = 54Vdc
U0rms = 54Vdc
GMAW
50% 350A 31,5Vdc
60% 340A 31,0Vdc
100% 300A 29,0Vdc
FCAW
50% 350A 31,5Vdc
60% 340A 31,0Vdc
100% 300A 29,0Vdc
SMAW
30% 350A 34,0Vdc
60% 320A 32,8Vdc
100% 275A 31,0Vdc
WELDING CURRENT RANGE
GMAW FCAW SMAW
20A÷350A 20A÷350A 10A÷350A
WELDING VOLTAGE REGULATION RANGE
GMAW FCAW
15V÷ 33,5V 15V÷ 33,5V
RECOMMENDED INPUT CABLE AND FUSE SIZES
Fuse Type: Time-Delay or Circuit Breaker Type D Power Lead
400V
25A 4 Conductor, 2,5mm2
DIMENSION
Weight Height Width Length
68kg 932 mm 560 mm 925 mm
Protection Rating Operating Humidity (t=20°C) Operating Temperature Storage Temperature
IP23 ≤90 % from -10 ºC to +40 ºC from -25 ºC to +55 ºC

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2
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. 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 with, if necessary, assistance from Lincoln Electric.
WARNING
Provided that the public low voltage system impedance at the point of common coupling is lower than:
105 mΩfor the POWERTEC®i400S
This equipment is compliant with IEC 61000-3-11 and IEC 61000-3-12 and can be connected to public lowvoltage 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 kept as short as possible and should be positioned together. 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
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 can be potential difficulties in ensuring electromagnetic compatibility in those locations,
due to conducted as well as radio-frequency disturbances.

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3
Safety
11/04
WARNING
This equipment must 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 damage to this equipment.
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 damage to this equipment. 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 damage to this equipment.
ELECTRIC SHOCK CAN KILL: Welding equipment generates high voltages. Do not touch the electrode,
work clamp, or connected work pieces when this equipment is on. Insulate yourself from the electrode,
work clamp and connected work pieces.
ELECTRICALLY POWERED EQUIPMENT: Turn off 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.
ELECTRIC AND MAGNETIC FIELDS MAY BE DANGEROUS: Electric current flowing through any
conductor creates electric and magnetic fields (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. Use suitable clothing made from durable
flame-resistant material to protect you skin and that of your helpers. Protect other nearby personnel with
suitable, non-flammable screening and warn them not to watch the arc nor expose themselves to the arc.
WELDING SPARKS CAN CAUSE FIRE OR EXPLOSION: Remove fire hazards from the welding area
and have a fire extinguisher readily available. 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 operate this equipment when flammable gases, vapors or liquid combustibles 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.

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4
CYLINDER MAY EXPLODE IF DAMAGED: Use only 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.
SAFETY MARK: This equipment is suitable for supplying power for welding operations carried out in an
environment with increased hazard 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.

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5
Intoduction
POWERTEC®i400S inverter source have to be
connected with wire feeder LF52Ds. Signal from the
power source will be displayed on wire feeders user
interface. For communication, inverter source-wire
feeder is used CAN protocol.
Inverter source-wire feed configuration allows the
welding:
GMAW (MIG/MAG);
FCAW;
SMAW (MMA).
The complete packaging includes the following items:
Inverter source;
USB with Operator’s Manual;
Work lead - 3m;
Slow-blow fuse – 2A (2 units);
Gas hose -2m;
Chain.
Recommended equipment, which can be bought by the
user, was mentioned in the chapter "Accessories
Suggested".
Installation and Operator Instructions
Read this entire section before installation or operation
of the machine.
Location and Environment
This machine can be operate in harsh environment.
However, it is important to use simple preventative
measures, which provide 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 in a place 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.
Keep awaz from 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 a 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
higher 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 the outlet plug
to power lead and connecting the welding machine had to
be made in accordance with the appropriate National
Electrical Code and local regulations.
Check the input voltage, phases, and frequency supplied
to this machine before turning it on. Verify the
connection of grounding wires from the machine to the
input power source. POWERTEC®i400S can only be
connected to a mating grounded receptacle.
Input voltages is 3x400V 50/60Hz. For more information
about input supply please 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 type of protection 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.
See "Technical Specifications" chapter.
WARNING
In case of powering welder from a generator make sure to
turn off welding machine first, before generator is shut
down, in order to prevent damage to welding machine!
Output Connections
Refer to points [2], [3] and [4] of the figures below.

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6
Controls and Operational Features
1
2
3
4
5
Figure 1.
1. Power Switch ON/OFF (I/O): Controls the input
power. Make sure the power source is properly
connected to the mains supply before turning power
on ("I").
2. Negative Output Socket for the Welding
Circuit: Depending on the configuration of
power source, for connecting a work lead,
the electrode holder with lead or the source/wire
feeder welding cable.
3. Positive Output Socket for the Welding
Circuit: Depending on the configuration of
power source, for connecting a work lead,
the electrode holder with lead or the source/wire
feeder welding cable.
4. Control Receptacle: 5 pins receptacle for
wire feeder or remote controller
connection. To communication wire
feeder or remote controller with power
source is used CAN protocol.
5. Gas Connector: For connection a gas hose from
interconnecting cable.
6
7
8
13
10
12
11
9
Figure 2.
6. Supply Plug: for gas heater kit (see “Accessories
Suggested” chapter).
7. 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.
8. Gas Connector: For connection a gas hose from
cylinder.
9. Top Chain: To protect gas bottle.
10. Bottom chain: For properly securing the gas cylinder
WARNING
Not using both chains at the same time to secure the gas
cylinder may result in damage to the cylinder, the device
and personal injury.
11. Gas hose: For connection between the cylinder and
machine.
12. Mass welding cable
13. Cover bracket: To install the welding and control
sockets on the rear panel of the device (see chapter
"Accessories Suggested") to connect the wire feeder.

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7
14
Figure 3.
14. Fuse F1: Use the 2A/400V (6,3x32mm) low blow
fuse.
Welding Cables Connection
Insert the plug of the work lead into the socket [2]. The
other end of this lead connect to the work piece with the
work clamp.
Connect the wire feeder to the power source:
Insert the positive welding cable into the output socket
[3].
Insert the wire feeder control cable into the socket [4]
(see "Accessories Suggested" chapter).
Use the possible shortest cable lengths.
Machine and Circuit Protection
Power Source is protected against overheating, overload
and accidental short-circuits.
If the machine is overheated, the thermal protection circuit
will decrease the output current to 0. This information will
be shown by wire feeder user interface. Please refer to
wire feeder user manual.
Transport & Lifting
WARNING
Falling equipment can cause injury and
damage to unit.
POWERTEC i400S
®
Figure 4.
During transportation and lifting with a crane, adhere to
the following rules:
The device contains elements adapted for transport.
For lifting a suitable lifting equipment capacity.
For lifting and transport use minimum four belts.
Lift and transport only power source without gas
cylinder, cooler and wire feeder, or/and any other
accessories.

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8
Maintenance
WARNING
For any repair operations, modifications or maintenances,
it is recommended to contact the nearest Technical
Service Center or Lincoln Electric. Repairs and
modifications performed by unauthorized service or
personnel will cause, that the manufacturer’s warranty will
be lost.
Any noticeable damage should be reported immediately
and repaired.
Routine maintenance (everyday)
Check condition of insulation and connections of the
work leads and insulation of power lead. If any
insulation damage exists replace the lead
immediately.
Remove the spatters from the welding gun nozzle.
Spatters could interfere with the shielding gas flow to
the arc.
Check the welding gun condition: replace it, if
necessary.
Check condition and operation of the cooling fan.
Keep clean its airflow slots.
Periodic maintenance (every 200 working hours, but
at list once a year)
Perform the routine maintenance and, in addition:
Keep the machine clean. Using a dry (and low
pressure) airflow, remove the dust from the external
case and from the cabinet inside.
If it is required, clean and tighten all weld terminals.
The frequency of the maintenance operations may vary
according to the working environment where the
machine is placed.
WARNING
Do not touch electrically live parts.
WARNING
Before the case of welding machine will be removed, the
welding machine has to be turned off and the power lead
had to be disconnected from mains socket.
WARNING
Mains supply network must be disconnected from the
machine before each maintenance and service. After
each repair, perform proper tests to ensure safety.
Customer Assistance Policy
The business of The Lincoln Electric Company is
manufacturing and selling high quality welding
equipment, consumables, and cutting equipment. Our
challenge is to meet the needs of our customers and to
exceed their expectations. On occasion, purchasers may
ask Lincoln Electric for advice or information about their
use of our products. We respond to our customers
based on the best information in our possession at that
time. Lincoln Electric is not in a position to warrant or
guarantee such advice, and assumes no liability, with
respect to such information or advice. We expressly
disclaim any warranty of any kind, including any
warranty of fitness for any customer’s particular purpose,
with respect to such information or advice. As a matter of
practical consideration, we also cannot assume any
responsibility for updating or correcting any such
information or advice once it has been given, nor does
the provision of information or advice create, expand or
alter any warranty with respect to the sale of our
products
Lincoln Electric is a responsive manufacturer, but the
selection and use of specific products sold by Lincoln
Electric is solely within the control of, and remains the
sole responsibility of the customer. Many variables
beyond the control of Lincoln Electric affect the results
obtained in applying these types of fabrication methods
and service requirements.
Subject to Change – This information is accurate to the
best of our knowledge at the time of printing. Please
refer to www.lincolnelectric.com for any updated
information.

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9
WEEE
07/06
English
Do not dispose of electrical equipment together with normal waste!
In observance of European Directive 2012/19/EC on Waste Electrical and Electronic Equipment (WEEE) and
its implementation in accordance with national law, electrical equipment that has reached the end of its life
must be collected separately and returned to an environmentally compatible recycling facility. As the owner of
the equipment, you should get information on approved collection systems from our local representative.
By applying this European Directive you will protect the environment and human health!
Spare Parts
12/05
Part List reading instructions
Do not use this part list for a machine if its code number is not listed. Contact the Lincoln Electric Service Department
for any code number not listed.
Use the illustration of assembly page and the table below to determine where the part is located for your particular
code machine.
Use only the parts marked "X" in the column under the heading number called for in the assembly page (# indicate a
change in this printing).
First, read the Part List reading instructions above, then refer to the "Spare Part" manual supplied with the machine, that
contains a picture-descriptive part number cross-reference.
REACh
11/19
Communication in accordance with Article 33.1 of Regulation (EC) No 1907/2006 – REACh.
Some parts inside this product contain:
Bisphenol A, BPA, EC 201-245-8, CAS 80-05-7
Cadmium, EC 231-152-8, CAS 7440-43-9
Lead, EC 231-100-4, CAS 7439-92-1
Phenol, 4-nonyl-, branched, EC 284-325-5, CAS 84852-15-3
in more than 0,1% w/w in homogeneous material. These substances are included in the “Candidate List of Substances
of Very High Concern for Authorisation” of REACh.
Your particular product may contain one or more of the listed substances.
Instructions for safe use:
use according to Manufacturer instructions, wash hands after use;
keep out of reach of children, do not put in mouth,
dispose in accordance with local regulations.
Authorized Service Shops Location
09/16
The purchaser must contact a Lincoln Authorized Service Facility (LASF) about any defect claimed under Lincoln's
warranty period.
Contact your local Lincoln Sales Representative for assistance in locating a LASF or go to www.lincolnelectric.com/en-
gb/Support/Locator.
Electrical Schematic
Refer to the "Spare Part" manual supplied with the machine.

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10
Accessories Suggested
K14186-2 LF 52Ds
GRD-400A-70-xM* Ground cable 400A/70 mm²; x=5/10/15 m
K14196-1 OUTPUT CONNECTION KIT
K14201-1 CABLE MANAGEMENT KIT
K14176-1 GAS HEATER KIT (POWERTEC®-i)
INTERCONNECTION CABLE
K14198-PG-30M-S CABLE PACK 5PIN G 95MM2 30M (SHIPYARD)
K14198-PG-40M-S CABLE PACK 5PIN G 95MM2 40M (SHIPYARD)

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11
Connection configuration
Figure 5