MMA 300 CEL - teamwelder

Operating instructions
Welding machine
EN
MMA 300 CEL
299-010300-TWD01
21.09.2015
General information
CAUTION
Read the operating instructions!
The operating instructions provide an introduction to the safe use of the products.
• Read the operating instructions for all system components.
• Observe the applicable accident prevention regulations.
• Observe all country-specific statutory provisions.
• Have confirmed by signature if necessary.
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 +49 2623 9276400.
A list of authorised sales partners can be found at www.teamwelder.com.
Liability in conjunction with the operation of this system is explicitly limited to the functioning of
the system. Any further liability, regardless of which type, is explicitly excluded. This liability
disclaimer is regarded as having been accepted by the user when the system is commissioned.
The manufacturer can neither monitor the compliance with these instructions nor the conditions
and methods employed during the installation, operation, use and maintenance of the machine.
An incorrectly performed installation can lead to material damage and injure persons as a result.
Therefore, we assume no responsibility or liability for losses, damages or costs arising from
erroneous installation, improper operation or incorrect use and maintenance, or any
consequences in conjunction thereof.
TEAMWELDER Germany GmbH
Sälzerstraße 20a
D-56235 Ransbach-Baumbach
Deutschland / Germany
The copyright to this document remains the property of the manufacturer.
Reprinting, 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.
Contents
Notes on the use of these operating instructions
1
Contents
1 Contents .................................................................................................................................................. 3
2 Safety instructions ................................................................................................................................. 5
2.1 Notes on the use of these operating instructions .......................................................................... 5
2.2 Explanation of icons ....................................................................................................................... 6
2.3 General .......................................................................................................................................... 7
2.4 Transport and installation ............................................................................................................ 11
2.4.1
Ambient conditions ....................................................................................................... 12
2.4.1.1 In operation ................................................................................................... 12
2.4.1.2 Transport and storage ................................................................................... 12
3 Intended use ......................................................................................................................................... 13
3.1 Applications .................................................................................................................................. 13
3.1.1
MMA welding ................................................................................................................ 13
3.1.2
TIG (Liftarc) welding ..................................................................................................... 13
3.2 Machine variants .......................................................................................................................... 13
3.2.1
Voltage reduction device – VRD machine version ....................................................... 13
3.3 Documents which also apply ....................................................................................................... 14
3.3.1
Warranty ....................................................................................................................... 14
3.3.2
Declaration of Conformity ............................................................................................. 14
3.3.3
Welding in environments with increased electrical hazards ......................................... 14
3.3.4
Service documents (spare parts and circuit diagrams) ................................................ 14
3.3.5
Calibration/Validation.................................................................................................... 14
4 Machine description – quick overview .............................................................................................. 15
4.1 Front view .................................................................................................................................... 15
4.2 Rear view ..................................................................................................................................... 16
4.3 Machine control – Operating elements ........................................................................................ 17
5 Design and function ............................................................................................................................. 19
5.1 General ........................................................................................................................................ 19
5.2 Transport and installation ............................................................................................................ 20
5.2.1
Adjusting the length of the carrying strap ..................................................................... 20
5.3 Machine cooling ........................................................................................................................... 21
5.4 Workpiece lead, general .............................................................................................................. 21
5.5 Mains connection ......................................................................................................................... 22
5.5.1
Mains configuration ...................................................................................................... 22
5.6 Notes on the installation of welding current leads ....................................................................... 23
5.7 MMA welding ............................................................................................................................... 25
5.7.1
Connecting the electrode holder and workpiece lead .................................................. 25
5.7.2
Selecting MMA welding ................................................................................................ 26
5.7.2.1 Arcforce (welding characteristics) ................................................................. 26
5.7.3
Hotstart current and Hotstart time ................................................................................ 27
5.7.4
Antistick ........................................................................................................................ 28
5.7.5
Advanced settings ........................................................................................................ 28
5.7.5.1 Arcforce correction (welding characteristics) ................................................ 28
5.8 TIG welding .................................................................................................................................. 29
5.8.1
Shielding gas supply (shielding gas cylinder for welding machine) ............................. 29
5.8.1.1 Connecting the shielding gas supply ............................................................ 30
5.8.2
Connecting a TIG welding torch with rotating gas valve .............................................. 31
5.8.2.1 Setting the shielding gas quantity ................................................................. 32
5.8.3
TIG welding selection ................................................................................................... 33
5.8.4
TIG arc ignition ............................................................................................................. 33
5.8.4.1 Liftarc ignition ................................................................................................ 33
5.9 Advanced settings ........................................................................................................................ 34
5.9.1
Arc length restriction (USP) .......................................................................................... 34
5.9.2
Activating the welding current actual value display ...................................................... 35
5.10 Remote control ............................................................................................................................. 36
5.10.1 Manual remote control TW-RT1 19POL ....................................................................... 36
5.11 Voltage reducing device (VRD) ................................................................................................... 36
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Contents
Notes on the use of these operating instructions
6
7
8
9
4
5.12 Dirt filter ........................................................................................................................................ 37
Maintenance, care and disposal ......................................................................................................... 38
6.1 General......................................................................................................................................... 38
6.2 Maintenance work, intervals......................................................................................................... 38
6.2.1
Daily maintenance tasks ............................................................................................... 38
6.2.1.1 Visual inspection ........................................................................................... 38
6.2.1.2 Functional test ............................................................................................... 38
6.2.2
Monthly maintenance tasks .......................................................................................... 38
6.2.2.1 Visual inspection ........................................................................................... 38
6.2.2.2 Functional test ............................................................................................... 38
6.2.3
Annual test (inspection and testing during operation) .................................................. 39
6.3 Disposing of equipment................................................................................................................ 39
6.3.1
Manufacturer's declaration to the end user .................................................................. 39
6.4 Meeting the requirements of RoHS .............................................................................................. 39
Rectifying faults.................................................................................................................................... 40
7.1 Error messages (power source) ................................................................................................... 40
7.2 Resetting welding parameters to the factory settings .................................................................. 41
Technical data....................................................................................................................................... 42
8.1 MMA 300 CEL .............................................................................................................................. 42
Accessories .......................................................................................................................................... 43
9.1 Internet ......................................................................................................................................... 43
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Safety instructions
Notes on the use of these operating instructions
2
Safety instructions
2.1
Notes on the use of 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
symbol.
• 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
warning symbol.
• The risk is explained using a symbol on the edge of the page.
CAUTION
Working and operating procedures which must be followed precisely to avoid damaging
or destroying the product.
• The safety information includes the "CAUTION" keyword in its heading without a general
warning symbol.
• The hazard is explained using a symbol at the edge of the page.
Special technical points which users must observe.
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.
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Safety instructions
Explanation of icons
2.2
Explanation of icons
Symbol
Description
Special technical points which users must observe.
Correct
Wrong
Press
Do not press
Press and keep pressed
Turn
Switch
Switch off machine
Switch on machine
ENTER
NAVIGATION
enter the menu
Navigating in the menu
EXIT
Exit the menu
4s
Time display (example: wait 4s/press)
Interruption in the menu display (other setting options possible)
Tool not required/do not use
Tool required/use
6
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Safety instructions
General
2.3
General
DANGER
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 - See 6 Maintenance, care and disposal chapter!
• 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
necessary).
Do not carry out any unauthorised repairs or modifications!
To avoid injury and equipment damage, the unit must only be repaired or modified by
specialist, skilled persons!
The warranty becomes null and void in the event of unauthorised interference.
• Appoint only skilled persons for repair work (trained service personnel)!
Electric shock!
Welding machines use high voltages which can result in potentially fatal electric shocks
and burns on contact. Even low voltages can cause you to get a shock and lead to
accidents.
• Do not touch any live parts in or on the machine!
• Connection cables and leads must be free of faults!
• Switching off alone is not sufficient!
• Place welding torch and stick electrode holder on an insulated surface!
• The unit should only be opened by specialist staff after the mains plug has been
unplugged!
• Only wear dry protective clothing!
• Wait for 4 minutes until the capacitors have discharged!
WARNING
Risk of injury due to radiation or heat!
Arc radiation results in injury to skin and eyes.
Contact with hot workpieces and sparks results in burns.
• Use welding shield or welding helmet with the appropriate safety level (depending on the
application)!
• Wear dry protective clothing (e.g. welding shield, gloves, etc.) according to the relevant
regulations in the country in question!
• Protect persons not involved in the work against arc beams and the risk of glare using
safety curtains!
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!
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Safety instructions
General
WARNING
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!
Fire hazard!
Flames may arise as a result of the high temperatures, stray sparks, glowing-hot parts
and hot slag produced during the welding process.
Stray welding currents can also result in flames forming!
• Check for fire hazards in the working area!
• Do not carry any easily flammable objects such as matches or lighters.
• Keep appropriate fire extinguishing equipment to hand in the working area!
• Thoroughly remove any residue of flammable substances from the workpiece before
starting welding.
• Only continue work on welded workpieces once they have cooled down.
Do not allow to come into contact with flammable material!
• Connect welding leads correctly!
Risk of accidents if these safety instructions are not observed!
Non-observance of these safety instructions is potentially fatal!
• Carefully read the safety information in this manual!
• Observe the accident prevention regulations in your country.
• Inform persons in the working area that they must observe the regulations!
Danger when coupling multiple power sources !
Coupling multiple power sources in parallel or in series has to be carried out by
qualified personnel and in accordance with the manufacturer's guidelines. Before
bringing the power sources into service for arc welding operations, a test has to verify
that they cannot exceed the maximum allowed open circuit voltage.
• Connection of the machine may be carried out by qualified personnel only!
• When decommissioning individual power sources, all mains and welding current leads have
to be safely disconnected from the welding system as a whole. (Danger due to inverse
voltages!)
• Do not couple welding machines with pole reversing switch (PWS series) or machines for
AC welding, as a minor error in operation can cause the welding voltages to be combined.
CAUTION
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!
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Safety instructions
General
CAUTION
Obligations of the operator!
The respective national directives and laws must be observed for operation of the
machine!
• National implementation of the framework directive (89/391/EWG), as well as the
associated individual directives.
• In particular, directive (89/655/EWG), on the minimum regulations for safety and health
protection when staff members use equipment during work.
• The regulations regarding work safety and accident prevention for the respective country.
• Setting up and operating the machine according to IEC 60974-9.
• Check at regular intervals that users are working in a safety-conscious way.
• Regular checks of the machine according to IEC 60974-4.
Damage due to the use of non-genuine parts!
The manufacturer's warranty becomes void if non-genuine parts are used!
• Only use system components and options (power sources, welding torches, electrode
holders, 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
machine is switched off.
Damage to the machine due to stray welding currents!
Stray welding currents can destroy protective earth conductors, damage equipment and
electronic devices and cause overheating of components leading to fire.
• Make sure all welding leads are securely connected and check regularly.
• Always ensure a proper and secure electrical connection to the workpiece!
• Set up, attach or suspend all conductive power source components like casing, transport
vehicle and crane frames so they are insulated!
• Do not place any other electronic devices such as drillers or angle grinders, etc., on the
power source, transport vehicle or crane frames unless they are insulated!
• Always put welding torches and electrode holders on an insulated surface when they are
not in use!
Mains connection
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.
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Safety instructions
General
CAUTION
EMC Machine Classification
In accordance with IEC 60974-10, welding machines are grouped in two electromagnetic
compatibility classes - See 8 Technical data chapter:
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,
including 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 equipment
• 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
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Safety instructions
Transport and installation
2.4
Transport and installation
WARNING
Incorrect handling of shielding gas cylinders!
Incorrect handling of shielding gas cylinders can result in serious and even fatal injury.
• Observe the instructions from the gas manufacturer and in any relevant regulations
concerning the use of compressed air!
• Place shielding gas cylinders in the holders provided for them and secure with fixing
devices.
• Avoid heating the shielding gas cylinder!
Risk of accident due to improper transport of machines that may not be lifted!
Do not lift or suspend the machine! The machine can fall down and cause injuries! The
handles and brackets are suitable for transport by hand only!
• The machine may not be lifted by crane or suspended!
CAUTION
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°
(according to IEC 60974-1).
• Set up and transport the machine on level, solid ground.
• Secure add-on parts using suitable equipment.
Damage due to supply lines not being disconnected!
During transport, supply lines which have not been disconnected (mains supply leads,
control leads, etc.) may cause hazards such as connected equipment tipping over and
injuring persons!
• Disconnect supply lines!
CAUTION
Equipment damage when not operated in an upright position!
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!
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Safety instructions
Transport and installation
2.4.1
Ambient conditions
CAUTION
Installation site!
The machine must not be operated in the open air and must only be set up and
operated on a suitable, stable and level base!
• The operator must ensure that the ground is non-slip and level, and provide sufficient
lighting for the place of work.
• Safe operation of the machine must be guaranteed at all times.
CAUTION
Equipment damage due to dirt accumulation!
Unusually high quantities of dust, acid, corrosive gases or substances may damage the
equipment.
• Avoid high volumes of smoke, vapour, oil vapour and grinding dust!
• Avoid ambient air containing salt (sea air)!
Non-permissible ambient conditions!
Insufficient ventilation results in a reduction in performance and equipment damage.
• Observe the ambient conditions!
• Keep the cooling air inlet and outlet clear!
• Observe the minimum distance of 0.5 m from obstacles!
2.4.1.1
In operation
Temperature range of the ambient air:
• -25 °C to +40 °C
Relative air humidity:
• Up to 50% at 40 °C
• Up to 90% at 20 °C
2.4.1.2
Transport and storage
Storage in an enclosed space, temperature range of the ambient air:
• -30 °C to +70 °C
Relative air humidity
• Up to 90% at 20 °C
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Intended use
Applications
3
Intended use
WARNING
Hazards due to improper usage!
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 proper usage and by trained or expert staff!
• Do not modify or convert the equipment improperly!
3.1
Applications
3.1.1
MMA welding
Manual arc welding or, for short, MMA welding. It is characterised by the fact that the arc burns between
a melting electrode and the molten pool. There is no external protection; any protection against the
atmosphere comes from the electrode.
3.1.2
TIG (Liftarc) welding
TIG welding procedure with arc striking by contact with the workpiece and subsequent removal of the
electrode.
3.2
Machine variants
3.2.1
Voltage reduction device – VRD machine version
To increase safety, particularly in hazardous environments (like shipbuilding, pipe construction or mining),
the machine is equipped with the VRD (Voltage-reducing device) voltage reduction device.
The VRD signal light is illuminated, when the voltage reduction device is operating without fault and the
output voltage is reduced to a value specified in the relevant standard (see technical data). The voltage
reduction device is only active on VRD machine versions.
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Intended use
Documents which also apply
3.3
Documents which also apply
3.3.1
Warranty
For more information on the warranty topic refer to the included CD-ROM or the website:
www.teamwelder.com.
3.3.2
Declaration of Conformity
The labelled machine complies with EC directives in terms of its design and
construction:
• EC Low Voltage Directive (2006/95/EC)
• EC EMC Directive (2004/108/EC)
In case of unauthorised changes, improper repairs, non-compliance with specified deadlines for "Arc
Welding Equipment – Inspection and Testing during Operation", and/or prohibited modifications which
have not been explicitly authorised by TEAMWELDER, this declaration shall be voided. An original
document of the specific declaration of conformity is included with every product.
3.3.3
Welding in environments with increased electrical hazards
In compliance with IEC / DIN EN 60974, VDE 0544 the machines can be used in
environments with an increased electrical hazard.
3.3.4
Service documents (spare parts and circuit diagrams)
DANGER
Do not carry out any unauthorised repairs or modifications!
To avoid injury and equipment damage, the unit must only be repaired or modified by
specialist, skilled persons!
The warranty becomes null and void in the event of unauthorised interference.
• Appoint only skilled persons for repair work (trained service personnel)!
Original copies of the circuit diagrams are enclosed with the unit.
To obtain spare parts, please refer to the included CD-ROM or contact your local authorised dealer.
3.3.5
Calibration/Validation
We hereby confirm that this machine has been tested using calibrated measuring equipment, as
stipulated in IEC/EN 60974, ISO/EN 17662, EN 50504, and complies with the admissible tolerances.
Recommended calibration interval: 12 months
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Machine description – quick overview
Front view
4
Machine description – quick overview
4.1
Front view
Figure 4-1
Item Symbol
1
Description 0
Carrying handle
2
Transport bar
3
Machine control- See 4.3 Machine control – Operating elements chapter
4
Cooling air inlet
5
Connection socket, 19-pole
Remote control connection
Connection socket, "+" welding current
• TIG: Connection for workpiece lead
• MMA: Electrode holder or workpiece lead connection
Machine feet
6
7
8
Connection socket, “-” welding current
Electrode holder or workpiece lead connection
9
Carrying strap
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Machine description – quick overview
Rear view
4.2
Rear view
Figure 4-2
Item Symbol
16
1
Description 0
Main switch, machine on/off
2
Cooling air outlet
3
Mains connection cable
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Machine description – quick overview
Machine control – Operating elements
4.3
Machine control – Operating elements
Figure 4-3
Item Symbol
1
2
3
4
5
TIG welding
“Arcforce” button (welding characteristics) according to electrode type
6
Select welding parameters button
This button is used to select the welding parameters depending on the welding process
and operating mode used.
Welding parameter setting rotary transducer
Setting of welding current and other welding parameter and their values
7
8
9
VRD
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Description 0
Collective interference signal light
For error messages, - See 7 Rectifying faults chapter
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.
Welding data display (3-digit)
Displays the welding parameters and the corresponding values
Switch display button
AMP
Welding current display
VOLT
Welding voltage display
Welding process button
MMA welding
VRD open circuit voltage reduction (VRD machine version)
17
Machine description – quick overview
Machine control – Operating elements
Item Symbol
18
10
AMP%
11
sec
Description 0
Hotstart current signal light
50 % to 200 % of the main current
Hotstart time signal light (0.1 s to 20 s)
12
AMP
Main current signal light
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Design and function
General
5
Design and function
5.1
General
WARNING
Risk of injury from electric shock!
Contact with live parts, e.g. welding current sockets, is potentially fatal!
• Follow safety instructions on the opening pages of the operating instructions.
• Commissioning may only be carried out by persons who have the relevant expertise of
working with arc welding machines!
• Connection and welding leads (e.g. electrode holder, welding torch, workpiece lead,
interfaces) may only be connected when the machine is switched off!
CAUTION
Insulate the arc welder from welding voltage!
Not all active parts of the welding current circuit can be shielded from direct contact. To
avoid any associated risks it is vital for the welder to adhere to the relevant safety
regulations. Even low voltages can cause a shock and lead to accidents.
• Wear dry and undamaged protective clothing (shoes with rubber soles/welder's gloves
made from leather without any studs or braces)!
• Avoid direct contact with non-insulated connection sockets or connectors!
• Always place torches and electrode holders on an insulated surface!
Risk of burns on the welding current connection!
If the welding current connections are not locked, connections and leads heat up and
can cause burns, if touched!
• Check the welding current connections every day and lock by turning in clockwise direction,
if necessary.
Risk from electrical current!
If welding is carried out alternately using different methods and if a welding torch and
an electrode holder remain connected to the machine, the open-circuit/welding voltage
is applied simultaneously on all cables.
• The torch and the electrode holder should therefore always be placed on an insulated
surface before starting work and during breaks.
CAUTION
Damage due to incorrect connection!
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
accessory components.
• Accessory components are detected automatically after the power source is switched on.
Using protective dust caps!
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!
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Design and function
Transport and installation
5.2
Transport and installation
WARNING
Risk of accident due to improper transport of machines that may not be lifted!
Do not lift or suspend the machine! The machine can fall down and cause injuries! The
handles and brackets are suitable for transport by hand only!
• The machine may not be lifted by crane or suspended!
CAUTION
Installation site!
The machine must not be operated in the open air and must only be set up and
operated on a suitable, stable and level base!
• The operator must ensure that the ground is non-slip and level, and provide sufficient
lighting for the place of work.
• Safe operation of the machine must be guaranteed at all times.
5.2.1
Adjusting the length of the carrying strap
To demonstrate adjustment, lengthening the strap is shown in the figure. To shorten, the strap's
loops must be inched in the opposite direction.
Figure 5-1
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Design and function
Machine cooling
5.3
Machine cooling
To obtain an optimal duty cycle from the power components, the following precautions should be
observed:
• Ensure that the working area is adequately ventilated.
• Do not obstruct the air inlets and outlets of the machine.
• Do not allow metal parts, dust or other objects to get into the machine.
5.4
Workpiece lead, general
CAUTION
Risk of burns due to incorrect connection of the workpiece lead!
Paint, rust and dirt on the connection restrict the power flow and may lead to stray
welding currents.
Stray welding currents may cause fires and injuries!
• Clean the connections!
• Fix the workpiece lead securely!
• Do not use structural parts of the workpiece as a return lead for the welding current!
• Take care to ensure faultless power connections!
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Design and function
Mains connection
5.5
Mains connection
DANGER
Hazard caused by improper mains connection!
An improper mains connection can cause injuries or damage property!
• Only use machine with a plug socket that has a correctly fitted protective conductor.
• If a mains plug must be fitted, this may only be carried out by an electrician in accordance
with the relevant national provisions or regulations!
• Mains plug, socket and lead must be checked regularly by an electrician!
• When operating the generator always ensure it is earthed as stated in the operating
instructions. The resulting network has to be suitable for operating devices according to
protection class 1.
5.5.1
Mains configuration
The machine may be connected to:
• a three-phase system with four conductors and an earthed neutral conductor
• a three-phase system with three conductors of which any one can be earthed,
e.g. the outer conductor
Figure 5-2
Legend
Item
L1
L2
L3
N
PE
Designation
Outer conductor 1
Outer conductor 2
Outer conductor 3
Neutral conductor
Protective conductor
Colour code
brown
black
grey
blue
green-yellow
CAUTION
Operating voltage - mains voltage!
The operating voltage shown on the rating plate must be consistent with the mains
voltage, in order to avoid damage to the machine!
• !
•
22
Insert mains plug of the switched-off machine into the appropriate socket.
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Design and function
Notes on the installation of welding current leads
5.6
Notes on the installation of welding current leads
Incorrectly installed welding current leads can cause faults in the arc (flickering).
Lay the workpiece lead and hose package of power sources without HF igniter (MIG/MAG) for as
long and as close as possible in parallel.
Lay the workpiece lead and hose package of power sources with HF igniter (TIG) for as long as
possible in parallel with a distance of 20 cm to avoid HF sparkover.
Always keep a distance of at least 20 cm to leads of other power sources to avoid interferences
Always keep leads as short as possible! For optimum welding results max. 30 m (welding lead +
intermediate hose package + torch lead).
Figure 5-3
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Design and function
Notes on the installation of welding current leads
Use an individual welding lead to the workpiece for each welding machine!
Figure 5-4
Fully unroll welding current leads, torch hose packages and intermediate hose packages. Avoid
loops!
Always keep leads as short as possible!
Lay any excess cable lengths in meanders.
Figure 5-5
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Design and function
MMA welding
5.7
MMA welding
CAUTION
Risk of being crushed or burnt.
When replacing spent or new stick electrodes
• Switch off machine at the main switch
• Wear appropriate safety gloves
• Use insulated tongs to remove spent stick electrodes or to move welded workpieces and
• Always put the electrode holder down on an insulated surface.
Polarity depends on the instructions from the electrode manufacturer given on the electrode
packaging.
5.7.1
Connecting the electrode holder and workpiece lead
Figure 5-6
Item Symbol
1
Connection socket for "+" welding current
Electrode holder or workpiece lead connection
Workpiece
2
3
Connection socket, “-” welding current
Workpiece lead or electrode holder connection
4
•
•
Insert cable plug of the electrode holder into either the "+" or "-" welding current connection socket and
lock by turning to the right.
Insert cable plug of the workpiece lead into either the "+" or "-" welding current connection socket and
lock by turning to the right.
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Description 0
Electrode holder
25
Design and function
MMA welding
5.7.2
Selecting MMA welding
Operating
element
Action
Result
Select MMA welding process
The
signal light lights up in green
Set welding current
5.7.2.1
Arcforce (welding characteristics)
During the welding process, arcforce prevents the electrode sticking in the weld pool with increases in
current. This makes it easier to weld large-drop melting electrode types at low current strengths with a
short arc in particular.
The selectable electrode characteristics on the machine control are guideline values. Every
characteristic can also be optimised for the relevant electrode types and their welding properties.
The electrode types used must be selected on the machine control to achieve the optimum
welding properties of the electrode types.
Control element Action
Result
The corresponding signal light displays the selection.
xx
Electrode type allocation
Item
a)
b)
c)
d)
Electrode type
R
rutile
RB
rutile basic
B/RC
basic and rutile/cellulose
C
cellulose
Figure 5-7
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Design and function
MMA welding
5.7.3
Hotstart current and Hotstart time
The hotstart device uses an increased ignition current to improve arc ignition. The parameters for
the hotstart current and time can be adjusted individually.
When the stick electrode has been struck, the arc ignites at the adjusted hotstart current AMP% (factory
setting: 120 % of main current) and welds at this current until the hotstart time in seconds has elapsed
(factory setting: 1 second). The hotstart current then reduces to the main current set.
Symbol
Meaning
AMP
Main current
AMP%
Hotstart current
sec
Hotstart time
Figure 5-8
Hotstart current
Control element Action
nx
Result
Signal light AMP% lights up
Hotstart current is set as a percentage of the main current
(50 % to 200 %)
Hotstart time
Control element Action
nx
Result
Signal light sec lights up
Hotstart time is set
(0.1 s to 20 s)
After a waiting time of approx 5 s, the display changes back to the main current set and the signal
light AMP comes on.
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Design and function
MMA welding
5.7.4
Antistick
Anti-stick prevents the electrode from annealing.
If the electrode sticks in spite of the Arcforce device, the machine
automatically switches over to the minimum current within about 1
second to prevent the electrode from overheating. Check the welding
current setting and correct according to the welding task!
Figure 5-9
5.7.5
Advanced settings
To enable the greatest possible breadth of applications, the following parameters can be adjusted
or optimised for the welding task.
5.7.5.1
Arcforce correction (welding characteristics)
To change the advanced setting parameters, hold down the "Welding parameters" button for
2 seconds after selecting the welding process.
The following diagram shows the setting options.
ENTER
EXIT
2s
2s
Figure 5-10
Display
Setting/selection
Arcforce correction (setting -8 to 10, factory setting 0)
• Increase value > harder arc
• Decrease value > softer arc
Example:
You are using a rutile/basic electrode type and set "
" accordingly on the machine control.
When welding the electrode type, you specify a hard or aggressive arc. You should now change the
arcforce setting in the direction of "less arcforce – softer arc" until the required result is achieved.
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Design and function
TIG welding
5.8
TIG welding
5.8.1
Shielding gas supply (shielding gas cylinder for welding machine)
WARNING
Incorrect handling of shielding gas cylinders!
Incorrect handling of shielding gas cylinders can result in serious and even fatal injury.
• Observe the instructions from the gas manufacturer and in any relevant regulations
concerning the use of compressed air!
• Place shielding gas cylinders in the holders provided for them and secure with fixing
devices.
• Avoid heating the shielding gas cylinder!
CAUTION
Faults in the shielding gas supply.
An unhindered shielding gas supply from the shielding gas cylinder to the welding
torch is a fundamental requirement for optimum welding results. In addition, a blocked
shielding gas supply may result in the welding torch being destroyed.
• Always re-fit the yellow protective cap when not using the shielding gas connection.
• All shielding gas connections must be gas tight.
Before connecting the pressure regulator to the gas cylinder, open the cylinder valve briefly to
expel any dirt.
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Design and function
TIG welding
5.8.1.1
Connecting the shielding gas supply
• Secure the shielding gas cylinder using a securing chain.
Figure 5-11
Item Symbol
1
Description 0
Pressure regulator
2
Shielding gas cylinder
3
Output side of the pressure regulator
4
Cylinder valve
•
•
Tighten the pressure regulator screw connection on the gas bottle valve to be gas-tight.
Screw the shielding gas connection of the welding torch to the pressure reducer on the shielding gas
cylinder.
• Slowly open the gas cylinder valve.
• Open the rotating valve on the welding torch
Before each welding process, the rotating valve must be opened; after the welding process, it
must be closed.
• Set the required amount of shielding gas on the pressure reducer, about 4 - 15 l/min depending on the
current strength and the material.
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Design and function
TIG welding
5.8.2
Connecting a TIG welding torch with rotating gas valve
Figure 5-12
Item Symbol
1
3
Connection socket for "+" welding current
Workpiece lead connection
Output side of the pressure regulator
4
Welding torch
5
Connection socket, "-" welding current
Welding current lead connection for TIG welding torch
2
•
•
•
Insert the welding current plug on the welding torch into the welding current connection socket and
lock by turning to the right.
Insert the cable plug on the work piece lead into the "+" welding current connection socket and lock by
turning to the right.
Screw the shielding gas connection of the welding torch to the pressure reducer on the shielding gas
cylinder.
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Description 0
Workpiece
31
Design and function
TIG welding
5.8.2.1
Setting the shielding gas quantity
CAUTION
Electric shocks!
When setting the shielding gas quantity, high voltage ignition pulses or open circuit
voltage are applied at the welding torch; these can lead to electric shocks and burning
on contact.
• Keep the welding torch electrically insulated from persons, animals or equipment during the
setting procedure.
Incorrect shielding gas setting!
•
•
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!
Rule of thumb for the gas flow rate:
Diameter of gas nozzle in mm corresponds to gas flow in l/min.
Example: 7mm gas nozzle corresponds to 7l/min gas flow.
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Design and function
TIG welding
5.8.3
TIG welding selection
Control element Action
Result
TIG welding signal light
lights up
xx
Main current setting
5.8.4
TIG arc ignition
5.8.4.1
Liftarc ignition
Figure 5-13
The arc is ignited on contact with the workpiece:
a) Carefully place the torch gas nozzle and tungsten electrode tip onto the workpiece (liftarc current
flowing, regardless of the main current set).
b) Incline the torch towards the torch gas nozzle until there is a gap of approx. 2-3mm between the tip of
the electrode and the workpiece (arc ignites, current increases to the main current set).
c) Lift off the torch and swivel to the normal position.
Ending the welding process: Remove the torch from the workpiece until the arc goes out.
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Design and function
Advanced settings
5.9
Advanced settings
To enable the greatest possible breadth of applications, the following parameters can be adjusted
or optimised for the welding task.
5.9.1
Arc length restriction (USP)
ENTER
EXIT
2s
2s
Figure 5-14
Display
34
Setting/selection
Arc length restriction
on
Function switched on (TIG, factory setting)
off
Function switched off (MMA, factory setting)
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Design and function
Advanced settings
5.9.2
Activating the welding current actual value display
The welding current can be displayed as a setpoint value or an actual value on the welding data display.
The factory setting is that the welding current is displayed as a setpoint value (parameter "rcd" = off).
After switching over to the actual value display (parameter "rcd" = on), the following is displayed:
• The setpoint value is displayed in open circuit mode (when no welding current is flowing)
• If welding current is flowing, the welding data display switches over to the actual value
• After welding, the setpoint value is displayed once more
ENTER
EXIT
2s
2s
Figure 5-15
Display
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Setting/selection
Power display switching
on
Actual value display
off
Setpoint value display (factory setting)
35
Design and function
Remote control
5.10
Remote control
Insert the remote control control cable into the 19-pole connection socket for remote control
connection and lock.
5.10.1 Manual remote control TW-RT1 19POL
Functions
• Infinitely adjustable welding current (0% to 100%) depending on the preselected
main current on the welding machine.
5.11
Voltage reducing device (VRD)
To increase safety, particularly in hazardous environments (like shipbuilding, pipe construction or mining),
the machine is equipped with the VRD (Voltage-reducing device) voltage reduction device.
The VRD signal light is illuminated, when the voltage reduction device is operating without fault and the
output voltage is reduced to a value specified in the relevant standard (see technical data). The voltage
reduction device is only active on VRD machine versions.
The voltage reducing device is a requirement in some countries and in many internal company safety
guidelines for power sources.
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Design and function
Dirt filter
5.12
Dirt filter
The dirt filter can be used in places with unusually high levels of dirt and dust in the ambient air.
The filter reduces the duty cycle of the welding machine via the reduced flow of cooling air. The
filter must be disassembled and cleaned regularly depending on the level of dirt (blow out with
compressed air).
These accessory components can be retrofitted as an option .
Figure 5-16
Item Symbol
1
Description 0
4 fixing screws for dirt filter
2
Dirt filter with fixing plate
3
Cooling air inlet
•
Fix dirt filter with 4 fixing screws on the front of the casing (cooling air inlet) of the welding machine.
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Maintenance, care and disposal
General
6
Maintenance, care and disposal
DANGER
Do not carry out any unauthorised repairs or modifications!
To avoid injury and equipment damage, the unit must only be repaired or modified by
specialist, skilled persons!
The warranty becomes null and void in the event of unauthorised interference.
• Appoint only skilled persons for repair work (trained service personnel)!
Risk of injury from electric shock!
Cleaning machines that are not disconnected from the mains can lead to serious
injuries!
• Disconnect the machine completely from the mains.
• Remove the mains plug!
• Wait for 4 minutes until the capacitors have discharged!
Repair and maintenance work may only be performed by qualified authorised personnel; otherwise the
right to claim under warranty is void. In all service matters, always consult the dealer who supplied the
machine. Return deliveries of defective equipment subject to warranty may only be made through your
dealer. When replacing parts, use only original spare parts. When ordering spare parts, please quote the
machine type, serial number and item number of the machine, as well as the type designation and item
number of the spare part.
6.1
General
When used in the specified environmental conditions and under normal operating conditions, this
machine is largely maintenance-free and requires a minimum of care.
There are some points, which should be observed, to guarantee fault-free operation of your welding
machine. Among these are regular cleaning and checking as described below, depending on the pollution
level of the environment and the length of time the unit is in use.
6.2
Maintenance work, intervals
6.2.1
Daily maintenance tasks
6.2.1.1
Visual inspection
• Mains supply lead and its strain relief
• Gas tubes and their switching equipment (solenoid valve)
• Other, general condition
Functional test
• Welding current cables (check that they are fitted correctly and secured)
• Gas cylinder securing elements
• Operating, message, safety and adjustment devices (Functional test)
6.2.1.2
6.2.2
Monthly maintenance tasks
6.2.2.1
Visual inspection
• Casing damage (front, rear and side walls)
• Transport elements (strap, lifting lugs, handle)
Functional test
• Selector switches, command devices, emergency stop devices, voltage reducing devices, message
and control lamps
6.2.2.2
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Maintenance, care and disposal
Disposing of equipment
6.2.3
Annual test (inspection and testing during operation)
The welding machine may only be tested by competent, capable personsl. A capable person is
one who, because of his training, knowledge and experience, is able to recognise the dangers
that can occur while testing welding power sources as well as possible subsequent damage and
who is able to implement the required safety procedures.
A periodic test according to IEC 60974-4 "Periodic inspection and test" has to be carried out. In addition
to the regulations on testing given here, the relevant local laws and regulations must also be observed.
6.3
Disposing of equipment
Proper disposal!
The machine contains valuable raw materials, which should be recycled, and electronic
components, which must be disposed of.
•
•
6.3.1
Manufacturer's declaration to the end user
•
•
•
•
6.4
Do not dispose of in household waste!
Observe the local regulations regarding disposal!
According to European provisions (guideline 2002/96/EG of the European Parliament and the Council
of January, 27th 2003), used electric and electronic equipment may no longer be placed in unsorted
municipal waste. It must be collected separately. The symbol depicting a waste container on wheels
indicates that the equipment must be collected separately.
This machine is to be placed for disposal or recycling in the waste separation systems provided for
this purpose.
According to German law (law governing the distribution, taking back and environmentally correct
disposal of electric and electronic equipment (ElektroG) from 16.03.2005), used machines are to be
placed in a collection system separate from unsorted municipal waste. The public waste management
utilities (communities) have created collection points at which used equipment from private
households can be disposed of free of charge.
Information about giving back used equipment or about collections can be obtained from the
respective municipal administration office.
TEAMWELDER is registered for the Rema® System for disposal and recycling with the Reg. No.
07416/08-ECZ, and EKO-KOM with the Reg. No. F00034148.
Meeting the requirements of RoHS
We, TEAMWELDER Germany GmbH, hereby confirm that all products which we supply to you that are
subject to the RoHS Directive comply with the requirements of the RoHS (Directive 2011/65/EU).
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Rectifying faults
Error messages (power source)
7
Rectifying faults
All products are subject to rigorous production checks and final checks. If, despite this, something fails to
work at any time, please check the product using the following flowchart. If none of the fault rectification
procedures described leads to the correct functioning of the product, please inform your authorised
dealer.
7.1
Error messages (power source)
A welding machine error is indicated by the collective fault signal lamp (A1) lighting up and an
error code (see table) being displayed in the machine control display. In the event of a machine
error, the power unit shuts down.
• If multiple errors occur, these are displayed in succession.
• Document machine errors and inform service staff as necessary.
Error message
Possible cause
Remedy
"E 1"
Electronics error
Switch the machine off and back on again. If the
error persists, inform the service dept.
"E 2"
Temperature error
Allow machine to cool down.
"E 3"
Electronics error
See “E 1”.
"E 4"
Electronics error
See “E 1”.
"E 5"
Electronics error
See “E 1”.
"E 6"
Balancing error in voltage
Switch off the machine, place the electrode holder
recording
in an insulated position and switch the machine
back on. If the error persists, inform the service
"E 7"
Balancing error in current
dept.
recording
"E 8"
Error in one of the electronics
Switch the machine off and back on again. If the
supply voltages
error persists, inform the service dept.
"E 9"
Mains undervoltage
Switch off the machine and check the mains
voltage.
"E10"
Secondary excess voltage
Switch the machine off and back on again. If the
error persists, inform the service dept.
"E11"
Mains excess voltage
Switch off the machine and check the mains
voltage.
"E12"
Voltage reduction error (VRD)
Switch the machine off and back on again. If the
error persists, inform the service dept.
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Rectifying faults
Resetting welding parameters to the factory settings
7.2
Resetting welding parameters to the factory settings
All customised welding parameters that are stored will be replaced by the factory settings.
RESET
AM P
0
VOLT
l
+
+
Figure 7-1
Display
Setting/selection
Calibration
The machine will be calibrated for approx 2 seconds each time it is switched on.
Initialising
Keep the push-button pressed until "InI" is shown on the display.
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Technical data
MMA 300 CEL
8
Technical data
Performance specifications and guarantee only in connection with original spare and
replacement parts!
8.1
MMA 300 CEL
Current setting range
Voltage setting range
Duty cycle at 25°C
30%
40%
60%
70%
100%
Duty cycle 40°C
25%
30%
60%
100%
Load cycle
Open circuit voltage
Mains voltage (tolerances)
Frequency
Mains fuse (safety fuse, slow-blow)
Mains connection lead
Max. connected load
Recommended generator rating
cos/efficiency
Insulation class/protection classification
Ambient temperature
Machine cooling/torch cooling
Workpiece lead
Dimensions L/W/H
Weight
EMC class
Constructed to standard
42
MMA
10 A–300 A
20.4 V–32.0 V
TIG
5 A–300 A
10.4 V–22.0 V
300 A
220 A
170 A
290 A
230 A
180 A
300 A
300 A
220 A
240 A
170 A
190 A
10 min (60% DC  6 min welding, 4min pause)
107 V
3 x 400 V (+25% to +20 %)
50/60 Hz
10 A
H07RN-F4G2,5
12.1 kVA
8.3 kVA
16.3 kVA
0.99/88%
H/IP 23
-25 C to +40 C
Fan/gas
2
35 mm
515 x 185 x 350 mm
16.5 kg
A
IEC 60974-1, -10
/
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Accessories
Internet
9
Accessories
9.1
Internet
For the accessories available for your product go to www.teamwelder.com.
Figure 9-1
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