EWM Tetrix DC Comfort 2.0 User manual

Operating instructions
EN
Control
T4.01 - Tetrix DC Comfort 2.0
T4.09 - Tetrix DC Comfort 2.0
T4.12 - Tetrix DC Comfort 2.0
099-00T401-EW501
Observe additional system documents!
01.02.2022

General instructions
WARNING
Read the operating instructions!
The operating instructions provide an introduction to the safe use of the products.
• Read and observe the operating instructions for all system components, especially the sa-
fety instructions and warning notices!
• Observe the accident prevention regulations and any regional regulations!
• The operating instructions must be kept at the location where the machine is operated.
• Safety and warning labels on the machine indicate any possible risks.
Keep these labels clean and legible at all times.
• The machine has been constructed to state-of-the-art standards in line with any applicable
regulations and industrial standards. Only trained personnel may operate, service and re-
pair the machine.
• Technical changes due to further development in machine technology may lead to a dif-
fering welding behaviour.
In the event of queries on installation, commissioning, operation or special conditions at the
installation site, or on usage, please contact your sales partner or our customer service
department on [phone].
A list of authorised sales partners can be found at www.ewm-group.com/en/specialist-dealers.
Liability relating to the operation of this equipment is restricted solely to the function of the equipment. No
other form of liability, regardless of type, shall be accepted. This exclusion of liability shall be deemed ac-
cepted by the user on commissioning the equipment.
The manufacturer is unable to monitor whether or not these instructions or the conditions and methods
are observed during installation, operation, usage and maintenance of the equipment.
An incorrectly performed installation can result in material damage and injure persons as a result. For this
reason, we do not accept any responsibility or liability for losses, damages or costs arising from incorrect
installation, improper operation or incorrect usage and maintenance or any actions connected to this in
any way.
© EWM AG
Dr. Günter-Henle-Strasse 8
56271 Mündersbach Germany
Tel.: [phone], Fax: -244
Email: [e-mail]
www.ewm-group.com
The copyright to this document remains the property of the manufacturer.
Copying, including extracts, only permitted with written approval.
The content of this document has been prepared and reviewed with all reasonable care. The information
provided is subject to change; errors excepted.
Data security
The user is responsible for backing up data of all changes from the factory setting. The user is liable for
erased personal settings. The manufacturer does not assume any liability for this.

Contents
Notes on using these operating instructions
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1 Contents
1Contents .......................................................................................................................................... 3
2For your safety ............................................................................................................................... 5
2.1 Notes on using these operating instructions .......................................................................... 5
2.2 Explanation of icons ............................................................................................................... 6
2.3 Safety instructions .................................................................................................................. 7
2.4 Transport and installation .................................................................................................... 10
3Intended use ................................................................................................................................. 12
3.1 Use and operation solely with the following machines ........................................................ 12
3.2 Software version .................................................................................................................. 12
3.3 Documents which also apply ............................................................................................... 12
3.3.1 Part of the complete documentation ..................................................................... 13
4Machine control – Operating elements ...................................................................................... 14
4.1 Overview of control sections ................................................................................................ 14
4.1.1 Control section A .................................................................................................. 15
4.1.2 Control section B .................................................................................................. 17
4.2 Machine display ................................................................................................................... 18
4.2.1 Setting the welding current (absolute/percentage) ............................................... 18
4.3 Operating the machine control ............................................................................................. 18
4.3.1 Main screen .......................................................................................................... 18
4.3.2 Welding power setting .......................................................................................... 18
4.3.3 Welding parameter setting in the operation sequence ......................................... 19
4.3.4 Setting advanced welding parameters (Expert menu) ......................................... 19
4.3.5 Changing basic settings (machine configuration menu) ...................................... 19
5Functional characteristics ........................................................................................................... 20
5.1 TIG welding .......................................................................................................................... 20
5.1.1 Setting the shielding gas volume (gas test)/rinse hose package ......................... 20
5.1.1.1 Automatic gas post-flow ........................................................................ 20
5.1.2 Welding task selection .......................................................................................... 21
5.1.2.1 Recurring welding tasks (JOB 1-100) ................................................... 22
5.1.3 Arc ignition ............................................................................................................ 22
5.1.3.1 HF ignition ............................................................................................. 22
5.1.3.2 Liftarc .................................................................................................... 23
5.1.3.3 Automatic cut-out .................................................................................. 23
5.1.4 Operating modes (functional sequences)............................................................. 24
5.1.4.1 Explanation of symbols ......................................................................... 24
5.1.4.2 Non-latched mode ................................................................................. 25
5.1.4.3 Latched mode ....................................................................................... 26
5.1.4.4 spotArc .................................................................................................. 27
5.1.4.5 spotmatic ............................................................................................... 29
5.1.4.6 Non-latched operation, version C ......................................................... 30
5.1.5 TIG activArc welding ............................................................................................. 31
5.1.6 TIG antistick .......................................................................................................... 31
5.1.7 Pulse welding ....................................................................................................... 32
5.1.7.1 Automated pulses ................................................................................. 32
5.1.7.2 Thermal pulsing ..................................................................................... 32
5.1.7.3 Pulsed welding in the upslope and downslope phases ........................ 33
5.1.7.4 Metallurgical pulsing (kHz pulsing) ....................................................... 34
5.1.8 Average value pulse welding ................................................................................ 35
5.1.9 Welding torch (operating variants) ....................................................................... 36
5.1.9.1 Tapping function (tap torch trigger) ....................................................... 36
5.1.9.2 Torch mode setting ............................................................................... 36
5.1.9.3 Up/down speed ..................................................................................... 36
5.1.9.4 Current jump ......................................................................................... 36
5.1.9.5 Standard TIG torch (5-pole) .................................................................. 37
5.1.9.6 TIG up/down torch (8-pole) ................................................................... 39
5.1.9.7 Potentiometer torch (8-pole) ................................................................. 41
5.1.9.8 Configuring the TIG potentiometer torch connection ............................ 42
5.1.9.9 RETOX TIG torch (12-pole) .................................................................. 43

Contents
Notes on using these operating instructions
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5.1.9.10 Specifying max. no. of accessible JOBs ............................................... 43
5.1.10 RTF 1 foot-operated remote control ..................................................................... 44
5.1.10.1 RTF start ramp ...................................................................................... 44
5.1.10.2 RTF response ........................................................................................ 45
5.1.11 Expert menu (TIG) ................................................................................................ 46
5.1.12 Aligning the cable resistance ................................................................................ 48
5.2 MMA welding ........................................................................................................................ 49
5.2.1 Welding task selection .......................................................................................... 49
5.2.2 Hotstart ................................................................................................................. 50
5.2.2.1 Hotstart current ...................................................................................... 50
5.2.2.2 Hotstart time .......................................................................................... 50
5.2.3 Arcforce ................................................................................................................. 51
5.2.4 Antistick ................................................................................................................. 51
5.2.5 Pulse welding ........................................................................................................ 52
5.2.6 Average value pulse welding ................................................................................ 53
5.3 Filler wire welding ................................................................................................................. 53
5.3.1 Configuring the welding machine for mechanical arc fusion welding ................... 53
5.3.2 Selecting a welding task by means of the JOB list ............................................... 53
5.3.3 Select wire speed operating mode (KORREKTUR / MANUELL) ......................... 54
5.3.4 Setting the welding current and wire speed .......................................................... 54
5.3.5 Operating modes (functional sequences) ............................................................. 55
5.3.5.1 Explanation of symbols ......................................................................... 55
5.3.5.2 Non-latched mode ................................................................................. 56
5.3.5.3 3-cycle operation ................................................................................... 57
5.3.5.4 Latched mode ........................................................................................ 57
5.4 Power-saving mode (Standby) ............................................................................................. 57
5.5 Access control ...................................................................................................................... 58
5.6 Voltage reducing device ....................................................................................................... 58
5.7 Machine configuration menu ................................................................................................ 59
5.7.1 Selecting, changing and saving parameters......................................................... 59
6Rectifying faults ............................................................................................................................ 64
6.1 Warnings .............................................................................................................................. 64
6.2 Error messages .................................................................................................................... 65
6.3 Resetting welding parameters to the factory settings .......................................................... 66
6.4 Display machine control software version ............................................................................ 66
7Maintenance, care and disposal ................................................................................................. 67
7.1 General ................................................................................................................................. 67
7.2 Disposing of equipment ........................................................................................................ 68
8Appendix ....................................................................................................................................... 69
8.1 Parameter overview – setting ranges .................................................................................. 69
8.1.1 TIG welding ........................................................................................................... 69
8.1.2 MMA welding ........................................................................................................ 70
8.2 Searching for a dealer .......................................................................................................... 71

For your safety
Notes on using these operating instructions
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2 For your safety
2.1 Notes on using these operating instructions
DANGER
Working or operating procedures which must be closely observed to prevent imminent
serious and even fatal injuries.
• Safety notes include the "DANGER" keyword in the heading with a general warning symbol.
• The hazard is also highlighted using a symbol on the edge of the page.
WARNING
Working or operating procedures which must be closely observed to prevent serious
and even fatal injuries.
• Safety notes include the "WARNING" keyword in the heading with a general warning sym-
bol.
• The hazard is also highlighted using a symbol in the page margin.
CAUTION
Working or operating procedures which must be closely observed to prevent possible
minor personal injury.
• The safety information includes the "CAUTION" keyword in its heading with a general warn-
ing symbol.
• The risk is explained using a symbol on the edge of the page.
Technical aspects which the user must observe to avoid material or equipment damage.
Instructions and lists detailing step-by-step actions for given situations can be recognised via bullet
points, e.g.:
• Insert the welding current lead socket into the relevant socket and lock.

For your safety
Explanation of icons
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2.2 Explanation of icons
Symbol
Description
Symbol
Description
Indicates technical aspects which the u-
ser must observe.
Activate and release / Tap / Tip
Switch off machine
Release
Switch on machine
Press and hold
Switch
Incorrect / Invalid
Turn
Correct / Valid
Numerical value – adjustable
Input
Signal light lights up in green
Navigation
Signal light flashes green
Output
Signal light lights up in red
Time representation (e.g.: wait 4 s / ac-
tuate)
Signal light flashes red
Interruption in the menu display (other
setting options possible)
Tool not required/do not use
Tool required/use

For your safety
Safety instructions
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2.3 Safety instructions
WARNING
Risk of accidents due to non-compliance with the safety instructions!
Non-compliance with the safety instructions can be fatal!
• Carefully read the safety instructions in this manual!
• Observe the accident prevention regulations and any regional regulations!
• Inform persons in the working area that they must comply with the regulations!
Risk of injury from electrical voltage!
Voltages can cause potentially fatal electric shocks and burns on contact. Even low vol-
tages can cause a shock and lead to accidents.
• Never touch live components such as welding current sockets or stick, tungsten or wire
electrodes!
• Always place torches and electrode holders on an insulated surface!
• Wear the full personal protective equipment (depending on the application)!
• The machine may only be opened by qualified personnel!
• The device must not be used to defrost pipes!
Hazard when interconnecting multiple power sources!
If a number of power sources are to be connected in parallel or in series, only a techni-
cal specialist may interconnect the sources as per standard IEC 60974-9:2010: Installa-
tion and use and German Accident Prevention Regulation BVG D1 (formerly VBG 15) or
country-specific regulations.
Before commencing arc welding, a test must verify that the equipment cannot exceed
the maximum permitted open circuit voltage.
• Only qualified personnel may connect the machine.
• When taking individual power sources out of operation, all mains and welding current leads
must be safely disconnected from the welding system as a whole. (Hazard due to reverse
polarity voltage!)
• Do not interconnect welding machines with pole reversing switch (PWS series) or machines
for AC welding since a minor error in operation can cause the welding voltages to be com-
bined, which is not permitted.
Risk of injury due to radiation or heat!
Arc radiation can lead to skin and eye injuries.
Contact with hot workpieces and sparks can lead to burns.
• Use hand shield or welding helmet with the appropriate safety level (depends on the appli-
cation).
• Wear dry protective clothing (e.g. hand shield, gloves, etc.) in accordance with
the applicable regulations of your country.
• Persons who are not directly involved should be protected with a welding curtain or suitable
safety screen against radiation and the risk of blinding!

For your safety
Safety instructions
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WARNING
Risk of injury due to improper clothing!
During arc welding, radiation, heat and voltage are sources of risk that cannot be
avoided. The user has to be equipped with the complete personal protective equipment
at all times. The protective equipment has to include:
• Respiratory protection against hazardous substances and mixtures (fumes and vapours);
otherwise implement suitable measures such as extraction facilities.
• Welding helmet with proper protection against ionizing radiation (IR and UV radiation) and
heat.
• Dry welding clothing (shoes, gloves and body protection) to protect against warm environ-
ments with conditions comparable to ambient temperatures of 100 °C or higher and arcing
and work on live components.
• Hearing protection against harming noise.
Explosion risk!
Apparently harmless substances in closed containers may generate excessive pressure
when heated.
• Move containers with inflammable or explosive liquids away from the working area!
• Never heat explosive liquids, dusts or gases by welding or cutting!
Fire hazard!
Due to the high temperatures, sparks, glowing parts and hot slag that occur during
welding, there is a risk of flames.
• Be watchful of potential sources of fire in the working area!
• Do not carry any easily inflammable objects, e.g. matches or lighters.
• Ensure suitable fire extinguishers are available in the working area!
• Thoroughly remove any residue of flammable materials from the workpiece prior to starting
to weld.
• Only further process workpieces after they have cooled down. Do not allow them to contact
any flammable materials!

For your safety
Safety instructions
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CAUTION
Smoke and gases!
Smoke and gases can lead to breathing difficulties and poisoning. In addition, solvent
vapour (chlorinated hydrocarbon) may be converted into poisonous phosgene due to
the ultraviolet radiation of the arc!
• Ensure that there is sufficient fresh air!
• Keep solvent vapour away from the arc beam field!
• Wear suitable breathing apparatus if appropriate!
Noise exposure!
Noise exceeding 70 dBA can cause permanent hearing damage!
• Wear suitable ear protection!
• Persons located within the working area must wear suitable ear protection!
According to IEC 60974-10, welding machines are divided into two classes of
electromagnetic compatibility (the EMC class can be found in the Technical data):
Class A machines are not intended for use in residential areas where the power supply comes
from the low-voltage public mains network. When ensuring the electromagnetic compatibility of
class A machines, difficulties can arise in these areas due to interference not only in the supply
lines but also in the form of radiated interference.
Class B machines fulfil the EMC requirements in industrial as well as residential areas, inclu-
ding residential areas connected to the low-voltage public mains network.
Setting up and operating
When operating arc welding systems, in some cases, electro-magnetic interference can occur
although all of the welding machines comply with the emission limits specified in the standard.
The user is responsible for any interference caused by welding.
In order to evaluate any possible problems with electromagnetic compatibility in the
surrounding area, the user must consider the following: (see also EN 60974-10 Appendix A)
• Mains, control, signal and telecommunication lines
• Radios and televisions
• Computers and other control systems
• Safety equipment
• The health of neighbouring persons, especially if they have a pacemaker or wear a hearing
aid
• Calibration and measuring equipment
• The immunity to interference of other equipment in the surrounding area
• The time of day at which the welding work must be carried out
Recommendations for reducing interference emission
• Mains connection, e.g. additional mains filter or shielding with a metal tube
• Maintenance of the arc welding system
• Welding leads should be as short as possible and run closely together along the ground
• Potential equalization
• Earthing of the workpiece. In cases where it is not possible to earth the workpiece directly,
it should be connected by means of suitable capacitors.
• Shielding from other equipment in the surrounding area or the entire welding system
Electromagnetic fields!
The power source may cause electrical or electromagnetic fields to be produced which
could affect the correct functioning of electronic equipment such as IT or CNC devices,
telecommunication lines, power cables, signal lines and pacemakers.
• Observe the maintenance instructions!
• Unwind welding leads completely!
• Shield devices or equipment sensitive to radiation accordingly!
• The correct functioning of pacemakers may be affected (obtain advice from a doctor if nec-
essary).

For your safety
Transport and installation
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CAUTION
Obligations of the operator!
The respective national directives and laws must be complied with when operating the
machine!
• Implementation of national legislation relating to framework directive 89/391/EEC on the int-
roduction of measures to encourage improvements in the safety and health of workers at
work and associated individual guidelines.
• In particular, directive 89/655/EEC concerning the minimum safety and health requirements
for the use of work equipment by workers at work.
• The regulations applicable to occupational safety and accident prevention in the country
concerned.
• Setting up and operating the machine as per IEC 60974.-9.
• Brief the user on safety-conscious work practices on a regular basis.
• Regularly inspect the machine as per IEC 60974.-4.
The manufacturer's warranty becomes void if non-genuine parts are used!
• Only use system components and options (power sources, welding torches, electrode hold-
ers, remote controls, spare parts and replacement parts, etc.) from our range of products!
• Only insert and lock accessory components into the relevant connection socket when the ma-
chine is switched off.
Requirements for connection to the public mains network
High-performance machines can influence the mains quality by taking current from the mains
network. For some types of machines, connection restrictions or requirements relating to the
maximum possible line impedance or the necessary minimum supply capacity at the interface
with the public network (Point of Common Coupling, PCC) can therefore apply. In this respect,
attention is also drawn to the machines' technical data. In this case, it is the responsibility of the
operator, where necessary in consultation with the mains network operator, to ensure that the
machine can be connected.
2.4 Transport and installation
WARNING
Risk of injury due to improper handling of shielding gas cylinders!
Improper handling and insufficient securing of shielding gas cylinders can cause seri-
ous injuries!
• Observe the instructions from the gas manufacturer and any relevant regulations concern-
ing the use of compressed air!
• Do not attach any element to the shielding gas cylinder valve!
• Prevent the shielding gas cylinder from heating up.

For your safety
Transport and installation
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CAUTION
Risk of accidents due to supply lines!
During transport, attached supply lines (mains leads, control cables, etc.) can cause
risks, e.g. by causing connected machines to tip over and injure persons!
• Disconnect all supply lines before transport!
Risk of tipping!
There is a risk of the machine tipping over and injuring persons or being damaged itself
during movement and set up. Tilt resistance is guaranteed up to an angle of 10° (ac-
cording to IEC 60974-1).
• Set up and transport the machine on level, solid ground.
• Secure add-on parts using suitable equipment.
Risk of accidents due to incorrectly installed leads!
Incorrectly installed leads (mains, control and welding leads or intermediate hose pack-
ages ) can present a tripping hazard.
• Lay the supply lines flat on the floor (avoid loops).
• Avoid laying the leads on passage ways.
Risk of injury from heated coolant and its connections!
The coolant used and its connection or connection points can heat up significantly
during operation (water-cooled version). When opening the coolant circuit, escaping
coolant may cause scalding.
• Open the coolant circuit only when the power source or cooling unit is switched off!
• Wear proper protective equipment (protective gloves)!
• Seal open connections of the hose leads with suitable plugs.
The units are designed for operation in an upright position!
Operation in non-permissible positions can cause equipment damage.
• Only transport and operate in an upright position!
Accessory components and the power source itself can be damaged by incorrect connection!
• Only insert and lock accessory components into the relevant connection socket when the
machine is switched off.
• Comprehensive descriptions can be found in the operating instructions for the relevant ac-
cessory components.
• Accessory components are detected automatically after the power source is switched on.
Protective dust caps protect the connection sockets and therefore the machine against dirt and
damage.
• The protective dust cap must be fitted if there is no accessory component being operated on
that connection.
• The cap must be replaced if faulty or if lost!

Intended use
Use and operation solely with the following machines
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3 Intended use
WARNING
Hazards due to improper usage!
The machine has been constructed to the state of the art and any regulations and stand-
ards applicable for use in industry and trade. It may only be used for the welding proce-
dures indicated at the rating plate. Hazards may arise for persons, animals and material
objects if the equipment is not used correctly. No liability is accepted for any damages
arising from improper usage!
• The equipment must only be used in line with its designated purpose and by trained or
expert personnel!
• Do not improperly modify or convert the equipment!
3.1 Use and operation solely with the following machines
• Tetrix 300 Comfort 2.0 (T4.01)
• Tetrix 351-551 Comfort 2.0 (T4.09)
• Tetrix 200 Comfort 2.0 (T4.12)
3.2 Software version
The software version of the machine control can be displayed in the machine configuration menu
(menu Srv) > see 5.7 chapter.
3.3 Documents which also apply
• Operating instructions for the connected welding machines
• Documents of the optional expansions

Intended use
Documents which also apply
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3.3.1 Part of the complete documentation
This document is part of the complete documentation and valid only in combination with all other
parts of these instructions! Read and observe the operating instructions for all system
components, especially the safety instructions!
The illustration shows a general example of a welding system.
Figure 3-1
Item
Documentation
A.1
Transport vehicle
A.2
Power source
A.3
Cooling unit
A.4
Welding torch
A.5
Remote control
A.6
Control
A
Complete documentation

Machine control – Operating elements
Overview of control sections
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4 Machine control – Operating elements
4.1 Overview of control sections
For description purposes, the machine control has been divided into two sections (A, B) to ensure
maximum clarity. The setting ranges for the parameter values are summarised in the parameter
overview section > see 8.1 chapter.
Figure 4-1
Item
Symbol
Description 0
1
Control section A
> see 4.1.1 chapter
2
Control section B
> see 4.1.2 chapter

Machine control – Operating elements
Overview of control sections
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4.1.1 Control section A
Figure 4-2
Item
Symbol
Description 0
1
Welding data display (3-digit)
Displays the welding parameters and the corresponding values > see 4.2 chapter
2
Push-button gas test / rinse hose package > see 5.1.1 chapter
3
Operating mode > see 5.1.4 chapter / power-saving mode push-but-
ton > see 5.4 chapter
---------- Latched
------- Non-latched
------- spotArc spot welding procedure – signal light turns green
------- spotmatic spot welding procedure –signal light turns red
--------- Press button for long interval to put machine into power-saving mode.
Activate one of the operating elements to reactivate.
4
Pulsing push-button > see 5.1.7 chapter
---- Automated pulsing (frequency and balance)
--------- Signal light turns green: Thermal pulsed TIG welding/MMA pulse welding
--------- Signal light turns red: Metallurgical pulsed TIG welding (kHz pulsing)
5
Welding procedure push-button
---------- TIG welding
------ MMA welding (signal light turns green)
------ Arcforce setting (signal light turns red)
6
Display switching push-button
kW -------- Welding power display
V ---------- Welding voltage display
JOB ------ Display and setting of the JOB number with the control button
7
Welding data display (3-digit)
Displays the welding parameters and the corresponding values > see 4.2 chapter
8
Filler wire welding signal light
For machines with filler wire only (AW) > see 5.3 chapter
9
TIG ignition type signal light
Signal light on: Lift arc ignition active/HF start off. You can switch the ignition type in the
Expert menu (TIG) > see 5.1.11 chapter.

Machine control – Operating elements
Overview of control sections
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Item
Symbol
Description 0
10
Character function signal light
Indicates that it is possible to weld in an environment with major electric hazards, such
as in boilers. Service must be informed if this signal light is not on.
11
Coolant fault signal light
Signals pressure loss or low coolant level in the coolant circuit.
12
VRD
Voltage reduction device (VRD) signal light > see 5.6 chapter
13
Hold
Signal light Status display
After each completed welding task, the last values used in the welding process for the
welding current and welding voltage are shown on the displays, and the signal light will
be on
14
Excess temperature signal light
In case of excess temperature, temperature monitors de-activate the power unit, and
the excess temperature control lamp comes on. Once the machine has cooled down,
welding can continue without any further measures.
15
Access control active signal light
Signal light is on when access control is active on the machine con-
trol > see 5.5 chapter.
16
Without function in this machine version.

Machine control – Operating elements
Overview of control sections
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4.1.2 Control section B
Figure 4-3
Item
Symbol
Description 0
1
AMP%
sec
Signal light, two colour
Red: Secondary or pulse pause current (% of AMP)
Green: Pulse pause time /slope time (Expert menu)
2
AMP
sec
Signal light, two colour
Red: Main or pulse current
Green: Pulse time /slope time (AMP to AMP%, Expert menu)
3
sec
Signal light
Up-slope time (TIG)/hot start time (MMA)
4
AMP%
Signal light, two colour
Red: Start current (TIG)/hot start current (MMA)
Green: Start current time (TIG, Expert menu)
5
Gas pre-flow time signal light
6
Signal light activArc > see 5.1.5 chapter
7
Signal light, two colour
Green: Pulse frequency (MMA)
Red: Pulse frequency (TIG, average value pulsing)
8
Parameter selection push-button, left
The welding sequence parameters are selected one after another in an anti-clockwise
direction. For control systems without this button settings are done exclusively via the
control button.
9
Control button
Central control button to be pressed or turned > see 4.3 chapter.
10
Parameter selection push-button, right
The welding sequence parameters are selected one after another in a clockwise direc-
tion. For control systems without this button settings are done exclusively via the con-
trol button.
11
Balance signal light
Pulse balance
12
Electrode diameter signal light
Ignition optimisation (TIG)/tungsten balling basic setting

Machine control – Operating elements
Machine display
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Item
Symbol
Description 0
13
Gas post-flow time
14
AMP%
Signal light, two colour
Red: End current
Green: End current time > see 5.1.11 chapter
15
sec
Down-slope time signal light
4.2 Machine display
The following welding parameters can be displayed before (nominal values), during (actual values) or af-
ter welding (hold values):
Parameter
Before welding
(nominal values)
During welding
(actual values)
After welding
(hold values)
Welding current
Parameter times
Parameter currents
Frequency, balance
JOB number
Welding power
Welding voltage
When the hold values are displayed after welding and the settings are then changed (e.g. welding cur-
rent), the display will switch to the relevant nominal values.
 possible
 not possible
The parameters that can be set in the machine control function sequence are dependent on the welding
task selected. This means that if no pulse variant was selected, for example, no pulse parameters will be
available to set in the function sequence.
4.2.1 Setting the welding current (absolute/percentage)
The welding current can be set as a percentage (of the main current) or an absolute value:
TIG: Start, secondary and end current
MMA: Hot start current
To select, use the parameter > see 5.7 chapter in the configuration menu.
4.3 Operating the machine control
4.3.1 Main screen
The machine control switches to the main screen after it has been turned on or a setting has been com-
pleted. This means that the previously selected settings (indicated by signal lights where applicable) and
the nominal value for the current (A) are displayed in the left-hand welding data display. Depending on
the selection, the right-hand display shows the welding voltage (V) nominal value or the welding power
(kW) actual value. The control always switches back to the main screen after 4 sec..
4.3.2 Welding power setting
The welding power is set using the control button. You can also adjust the parameters in the operation
sequence or settings in the different machine menus.

Machine control – Operating elements
Operating the machine control
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4.3.3 Welding parameter setting in the operation sequence
Set a welding parameter in the functional sequence by clicking (select) and turning the click wheel (navi-
gate to the desired parameter). Press again to apply the selected parameter as the setting (corresponding
parameter value and signal light flash). Then turn to set the parameter value.
During welding parameter setting, the parameter value to be set flashes in the left hand display. A para-
meter abbreviation or a deviation in the specified parameter value upwards or downwards is shown on
the right-hand display:
Display
Meaning
Increase the parameter value
To return to the factory settings.
Factory setting (example value = 20)
Parameter is set to optimum value
Decrease the parameter value
To return to the factory settings.
4.3.4 Setting advanced welding parameters (Expert menu)
The Expert menu contains functions and parameters which cannot be set directly in the machine control
or which do not need to be et on a regular basis. The number and display of these parameters depends
on the previously selected welding procedure or the functions.
To select them hold the control button for more than 2 sec. Select the required parameter/menu item by
turning (navigate) and pressing (confirm) the control button.
You can also or alternatively use the push-buttons to the left and right of the control button to navigate.
4.3.5 Changing basic settings (machine configuration menu)
The basic welding system functions can be adjusted in the machine configuration menu. Only experi-
enced users should change the settings > see 5.7 chapter.

Functional characteristics
TIG welding
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5 Functional characteristics
5.1 TIG welding
5.1.1 Setting the shielding gas volume (gas test)/rinse hose package
• Slowly open the gas cylinder valve.
• Open the pressure regulator.
• Switch on the power source at the main switch.
• Set the relevant gas quantity for the application on the pressure regulator.
• The gas test can be activated at the machine control by pressing the "Gas test/purge " push-but-
ton > see 4.1.1 chapter.
Setting the shielding gas quantity (gas test)
• Shielding gas flows for 20 s or until the push-button is pressed again.
Purging long hose packages (purging)
• Press push-button for about 5 s. • Shielding gas flows for approx. 5 min. or until the push-button is
pressed again.
If the shielding gas setting is too low or too high, this can introduce air to the weld pool and may cause
pores to form. Adjust the shielding gas quantity to suit the welding task!
Setting instructions
Welding process
Recommended shielding gas quantity
MAG welding
Wire diameter x 11.5 = l/min
MIG brazing
Wire diameter x 11.5 = l/min
MIG welding (aluminium)
Wire diameter x 13.5 = l/min (100 % argon)
TIG
Gas nozzle diameter in mm corresponds to l/min gas throughput
Helium-rich gas mixtures require a higher gas volume!
The table below can be used to correct the gas volume calculated where necessary:
Shielding gas
Factor
75% Ar/25% He
1.14
50% Ar/50% He
1.35
25% Ar/75% He
1.75
100% He
3.16
For connecting the shielding gas supply and handling the shielding gas cylinder refer to the
power source operating instructions.
5.1.1.1 Automatic gas post-flow
If the function is active, the gas post-flow time is defined by the machine control unit in dependence on
power output. The defined gas post-flow time can also be adjusted if required. This value is then saved
for the current welding task. The automatic gas post-flow function can be activated or deactivated in
the machine configuration menu > see 5.7 chapter.