EWM SATURN MIG 200 User manual

EWM HIGHTEC WELDING GmbH
Dr.-Günter - Henle - Straße 8; D-56271 Mündersbach
Phone: [phone]; Fax: [phone]
Internet: www.ewm.de ; E-mail: [email protected]
Operating Manual
GB
SATURN MIG 200 - 300
SATURN MIG 200 - 300 PROGRAM
for Standard MIG/MAG Welding.
SATURN MIG 200, MIG 200 PROGRAM
SATURN MIG 250, MIG 250 PROGRAM
SATURN MIG 300, MIG 300 PROGRAM
The operating manual must be read before using the machine!
It can be dangerous to ignore this!
The machine may only be used by personnel who are familiar with appropriate regulations!
This machine bears the CE-mark and thus confroms with the
·EU-low voltage guidelines (73/23/EWG)
·EU-EMV- guidelines (89/336/EWG)
(The CE-mark is only required in countries which are members of the European Union).
SUnits may be used in accordance with VDE 0544 (EN 60974-1) in areas where increased
electrical danger exists.
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ã2000 Subject to technical change! Art. Nr.: 099-004305-EWM01 Stand: 28.08.2000

Originaldokument
liegt jedem Gerät bei!
Original document
is enclosed with each machine!
Document original
est joint à toute machine!
EG - Konformitätserklärung
EU - conformity declaration
Déclaration de Conformidité de U.E.
Name des Herstellers:
Name of manufacturer:
Nom du fabricant:
EWM HIGHTEC WELDING GmbH
(nachfolgend EWM genannt)
(In the following called EWM)
(nommé par la suite EWM)
Anschrift des Herstellers:
Address of manufacturer:
Adresse du fabricant:
Dr.- Günter - Henle - Straße 8
D - 56271 Mündersbach –Germany
[email protected]
Hiermit erklären wir, daß das nachstehend
bezeichnete Gerät in seiner Konzeption und
Bauart sowie in der von uns in Verkehr ge-
brachten Ausführung den grundlegenden
Sicherheitsanforderungen der unten genannten
EG- Richtlinien entspricht. Im Falle von
unbefugten Veränderungen, unsachgemäßen
Reparaturen und / oder unerlaubten Umbauten,
die nicht ausdrücklich von EWM autorisiert sind,
verliert diese Erklärung ihre Gültigkeit.
We herewith declare that the machine described
below meets the standard safety regulations of the
EU- guidelines mentionned below in its conception
and construction, as well as in the design put into
circulation by us. In case of unauthorized changes,
improper repairs and / or unauthorized
modifications, which have not been expressly
allowed by EWM, this declaration will lose its
validity.
Par la présente, nous déclarons que la conception
et la construction ainsi que le modéle, mis sur le
marché par nous, de l´appareil décrit ci - dessous
correspondent aux directives fondamentales de
sécurité de la U.E. mentionnées ci- dessous. En cas
de changements non autorisés, de réparations
inadiquates et / ou de modifications prohibeés, qui
n´ont pas été autorisés expressément par EWM,
cette déclaration devientcaduque.
Gerätebezeichnung:
Description of the machine:
Déscription de la machine:
Gerätetyp:
Type of machine:
Type de machine:
Artikelnummer EWM:
Article number:
Numéro d´article
Seriennummer:
Serial number:
Numéro de série:
Optionen:
Options:
Options:
keine
none
aucune
Zutreffende EG - Richtlinien:
Applicable EU - guidelines:
Directives de la U.E. applicables:
EG - Niederspannungsrichtlinie (73/23/EWG)
EU - low voltage guideline
Directive de la U.E. pour basses tensions
EG- EMV- Richtlinie (89/336/EWG)
EU- EMC guideline
U.E.- EMC directive
Angewandte harmonisierte Normen:
Used co-ordinated norms:
Normes harmonisées appliquées:
EN 60974 / IEC 60974 / VDE 0544
EN 50199 / VDE 0544 Teil 206
Hersteller - Unterschrift:
Signature of manufacturer:
Signature du fabricant:
Michael Szczesny , Geschäftsführer
managing director
gérant 05.2000

CONTENTS Page
Contents/1
Safety Instructions ................................................................................................................Safety/1
Instructions for the use of this Operating Manual ...................................................Instructions/1
1 About this step switched machine....................................................................................... 1/1
1.1 The advantages of these MIG/MAG- Welding Machines .................................................1/1
1.2 Controls............................................................................................................................ 1/2
1.2.1 Control M100....................................................................................................... 1/2
1.2.2 Control Program M201........................................................................................ 1/3
1.3 Range of Applications....................................................................................................... 1/4
2 Transport and Installation.....................................................................................................2/1
3 Technical Data........................................................................................................................ 3/1
3.1 SATURN - Series ............................................................................................................ 3/1
4 Description of the System components.............................................................................. 4/1
4.1 System Summary............................................................................................................. 4/1
4.2 The Welding Power Source.............................................................................................. 4/2
4.2.1 SATURN 200 - 300 Welding Machine Series (Front- and rearview)................... 4/2
4.3 Controls............................................................................................................................ 4/4
4.3.1 Control “PROGRAM“ M201................................................................................. 4/4
4.3.2 Control M100....................................................................................................... 4/6
4.4 Volt-/ Ammeter Display..................................................................................................... 4/7
4.4.1 M110: digital V / A - Meter with Hold - Function
(Option for M100+M201) ..................................................................................... 4/7
4.5 The Remote Control (Option only with the M201)............................................................ 4/7
4.5.1 Hand Remote Control RM (Option only with the M201)
...................................... 4/7
4.5.2 Remote Control On the welding torch (Option only with the M201) .................... 4/8
4.6 The Interfaces(Option, only with the M201) ..................................................................... 4/8
4.6.1 Automation Interface (Option) ............................................................................. 4/8

CONTENTS Page
Contents/2
5 Description of M100 / M110 Controls................................................................................... 5/1
5.1 Description M100 Control................................................................................................. 5/1
5.1.1 Setting the Working Point.................................................................................... 5/1
5.1.2 Selection of Operating Modes ............................................................................. 5/2
5.1.3 Choke Tappings .................................................................................................. 5/2
5.2 V / A - Meter with Hold - Function M110 (Option) ............................................................ 5/2
5.2.1 Display actual values during and after welding.................................................... 5/2
5.3 Setting further welding parameters ................................................................................... 5/3
5.3.1 Wire burn-back .................................................................................................... 5/3
5.3.2 Gas after-flow time ..............................................................................................5/3
5.3.3 Feeding in the wire .............................................................................................. 5/3
5.3.4 Creep start........................................................................................................... 5/4
5.4 Sequence of functions - operating modes........................................................................ 5/5
5.4.1 Sequence of functions 2-step.............................................................................. 5/5
5.4.2 Sequence of functions 4-step.............................................................................. 5/6
5.4.3 Sequence of functions spot welding.................................................................... 5/7
5.4.4 Sequence of functions Interval ............................................................................ 5/8
6 Description of M201, M210 Controls.................................................................................... 6/1
6.1 Definition of MIG/MAG welding jobs................................................................................. 6/1
6.1.1 MIG/MAG- Welding Jobs and setting of the working point
(without option M210 / operating mode programme, one-knob operation).......... 6/2
6.1.2 MIG/MAG- Welding Jobs and setting of the working point
(without option M210 / operating mode manual, two-knob operation)................. 6/3
6.2 Selection of the operating mode 2-stroke, 4-stroke, Spot welding................................... 6/3
6.3 Selection of the choke tapping ......................................................................................... 6/3
6.4 Signal lamps for error messages...................................................................................... 6/4
6.4.1 Error message too much/ too little welding power pre-selected.......................... 6/4
6.4.2 Error message “No programme available“ .......................................................... 6/4
6.4.2.1 Short-circuit when the machine is switched on .................................... 6/4
6.4.2.2 Short-circuit at the first welding operation............................................ 6/4
6.4.2.3 Short-circuit in any welding operation (contact ignition)....................... 6/4
6.5 Correcting the wire feed speed ........................................................................................ 6/5
6.5.1 Correcting the wire feed speed with remote control (Option) .............................. 6/5
6.5.2 Correcting the wire feed speed with remote control on the welding torch
(Option)................................................................................................................ 6/5

CONTENTS Page
Contents/3
6.6. M110 (Option) digital V / A - Meter with Hold Function .................................................... 6/5
6.6.1 Display of actual welding data during and after welding...................................... 6/5
6.7 Further Functions ............................................................................................................ 6/6
6.7.1 Wire burn-back .................................................................................................... 6/6
6.7.2 Gas after-flow time ..............................................................................................6/6
6.7.3 Feeding in the wire electrode .............................................................................. 6/7
6.7.4 Creep start........................................................................................................... 6/7
6.7.5 Gas pre-flow........................................................................................................ 6/8
6.7.6 Ignition control ..................................................................................................... 6/8
6.7.7 Forced shut-down................................................................................................ 6/8
6.7.8 Short circuit monitoring........................................................................................ 6/8
6.8 Sequence of functions in operating modes ...................................................................... 6/9
6.8.1 Sequence of functions 2-Stroke........................................................................... 6/9
6.8.2 Sequence of functions 4-Stroke......................................................................... 6/10
6.8.3 Sequence of functions Spot welding.................................................................. 6/11
7 Summary Manual .................................................................................................................. 7/1

CONTENTS Page
Contents/4
8 Commissioning...................................................................................................................... 8/1
8.1 Setting up the Welding Machine....................................................................................... 8/1
8.2 Mains Connection............................................................................................................. 8/1
8.2.1 Reconnecting the mains voltage 400/415V at the control transformer................ 8/1
8.3 Cooling the Welding Machine........................................................................................... 8/2
8.4 Welding Torch Connections ............................................................................................. 8/2
8.4.1 MIG- Welding Torch ............................................................................................8/2
8.4.2 MIG- Welding Torch with adjustment knob for wire-feed correction
(Option, in preparation)........................................................................................ 8/2
8.4.3 Connection of MIG Push/Pull- Torch(Option)...................................................... 8/3
8.5 Installing the Welding Wire............................................................................................... 8/3
8.5.1 Insertion of the wire spool.................................................................................... 8/3
8.5.2 Inching the wire electrode ................................................................................... 8/4
8.5.3 Setting the spool brake........................................................................................ 8/4
8.6 Workpiece Cable..............................................................................................................8/5
8.6.1 Changing the welding current polarity (option for cored wire welding)................ 8/5
8.7 Shielding gas supply.........................................................................................................8/6
8.7.1 Fitting the gas connections.................................................................................. 8/6
8.7.2 Shielding gas settings.......................................................................................... 8/6
9 Setting instructions ............................................................................................................... 8/6
10 Maintenance and Care......................................................................................................... 10/1
11 Operating Faults, Causes and Cures................................................................................. 11/1
11.1Customer Checklist ........................................................................................................ 11/1
12. Spare Parts List ................................................................................................................... 12/1
13. Accessories, Options (in preparation) ................................................................................ 13/1
14. Circuit diagrams .................................................................................................................. 14/1

Safety instructions
Safety/1
For Your Safety:
Warning: Observe accident prevention regulations!
Ignoring the following safety procedures can be fatal.
•Before undertaking welding tasks, put on prescribed dry protective clothing, e.g. gloves.
•Protect eyes and face with protective visor.
Electric shocks can be fatal
•The machine may only be connected to correctly earthed sockets.
•Only operate with intact connection lead including protective conductor and safety plug.
•An improperly repaired plug or damaged mains cable insulation can cause electric shocks.
•The machine may only be opened by qualified and authorised personnel.
•Before opening, pull out the mains plug. Switching off is not sufficient. Wait for 2 minutes
until capacitors are discharged.
•Always put down welding torch, stick electrode holder in an insulated condition.
Even touching low voltages can cause you to jump and lead to accidents, so:
•Secure yourself from falls before working on platforms or scaffolding.
•When welding, operate handle earth tongs, torch and workpiece properly, not in ways for
which they are not intended. Do not touch live parts with bare skin.
•When welding, operate handle earth tongs, torch and workpiece properly, not in ways for
which they are not intended. Do not touch live parts with bare skin.
•Never use torches or earth cables with damaged insulation.
Smoke and gases can lead to breathing difficulties and poisoning.
•Do not breathe in smoke and gases.
•Ensure that there is sufficient fresh air.
•Keep solvent vapours away from the arc radiation area. Chlorinated hydrocarbon fumes can
be converted into poisonous phosgene by ultraviolet radiation.
Workpiece, flying sparks and droplets are hot
•Keep children and animals well away from the working area. Their behaviour is unpredictable.
•Move containers with inflammable or explosive liquids away from the working area.
There is a danger of fire and explosion.
•Never heat explosive liquids, dust or gases by welding or cutting. There is also a danger of
explosions when apparently harmless substances develop high pressures in enclosed
containers by heating.
Take care to avoid fire hazards
•Any kind of fire hazards must be avoided. Flames can form e.g. when sparks are flying, when
parts are glowing or hot slag is present.
•A constant check must be kept on whether fire hazards have been created in the working area.
•Highly inflammable objects, such as matches and cigarette lighters for example, must not be
carried in trouser pockets.
•You must ensure that fire extinguishing equipment - appropriate to the welding process - is
available close to the welding work area and that easy access is possible.

Safety instructions
Safety/2
Take care to avoid fire hazards
•Containers in which fuels or lubricants have been present must be thoroughly cleaned before
welding begins. It is not sufficient simply for the receptacle to be empty.
•After a workpiece has been welded, it must only be touched or brought into contact with
inflammable material when it has cooled down sufficiently.
•Loose welding connections can completely destroy protective conductor systems of interior
installations and cause fires. Before beginning welding work, ensure that the handle earth
tongs are properly fixed to the workpiece or welding bench and that there is a direct electrical
connection from the workpiece to the power source.
Noise exceeding 70 dBA can cause permanent hearing damage
•Wear suitable earmuffs or plugs.
•Ensure that other people who spend time in the working area are not inconvenienced by the
noise.
Secure gas cylinder
•Place shielding gas cylinders in the holders provided for them and secure with safety chains.
•Take care when handling cylinders; do not throw or heat, guard against them toppling over!
•When moving by crane, take off the gas cylinder from the welding machine.
Caution: Interference by electric and electromagnetic fields can be caused by the welding
machine or by the high-voltage pulses of the ignition unit..
•As laid down in Electromagnetic Compatibility Standard EN 50199, the machines are intended f
use in industrial areas; if they are operated e.g. in residential environments problems can occur
ensuring electromagnetic compatibility.
•The functioning of heart pacemakers can be adversely affected when you are standing near th
e
welding machine.
•Malfunctioning of electronic equipment (e.g. EDP, CNC equipment) in the vicinity of the
welding location is possible.
•Other mains supply leads, trip leads, signal and telecommunications leads above, under and
near the welding device may be subject to interference.
Warning: Electromagnetic interference must be reduced to such a level that it no longer
constitutes interference.
Possible reduction measures:
•Welding equipment should be serviced regularly. (see Sect. Maintenance and care)
•Welding leads should be as short as possible and run closely together on or near to the
ground.
•Selective shielding of other leads and equipment in the environment can reduce radiation
Caution: Repairs and modifications may only be carried out by authorised, trained,
specialist personnel.
The warranty becomes null and void in the event of unauthorised interference.
Our operating instructions will provide you with an introduction into the safe use of the
machine.
Therefore please read them closely and only start work when you are familiar with them.

Notes on the use of these operating instructions
Instructions/1
These operating instructions are arranged in Sections.
To help you find your way around more quickly, in the margins you will occasionally see, in addition
to sub-headings, icons referring to particularly important passages of text which are graded as
follows depending on their importance:
(Note): Applies to technical peculiarities which must be observed by the user.
(Warning): Applies to working and operating procedures which must be followed
precisely to avoid damaging or destroying the machine.
(Caution): Applies to working and operating procedures which must be followed
precisely to avoid endangering people and includes the „Warning“ symbol.
Instructions and lists detailing step-by-step actions in given situations can be recognised
by bullet points, e.g.:
•Insert plug of welding current lead into socket (Sect. 5, G2) and lock.
Meaning of the diagram descriptions:
e.g. (C1) means: Item C / Figure 1 in the respective Section
e.g. (Sect. 3, C1) means: in Section 3 Item C / Figure 1

1 About this step switched machine
1/1
Congratulations !
The SATURN- Series machines are known for their excellent arc striking and welding
characteristics, ergonomic, robust construction and excellent price/performance relationship.
They can be used everywhere from the simplest welding tasks right up to high-tech applications in
industry and trade thanks to their various control concepts.
1.1 The advantages of these MIG/MAG - Welding Machines:
•Perfect Ignition thanks to the optimum welding choke with tappings for the various types of
and Welding material, the fine step welding voltage adjustment, the wire burn-back and
Characteristics large wire feed rollers for reliable wire feed.
•Minimum Finishing thanks to low splatter welding in both short- and spray- arc range when using
Argon, Mixed gases and CO2.
•Easy to use thanks to the ergonomic construction of the machine and the clear layout of the
operating elements.
•Mobile with large turning and fixed wheels, 4 lifting lugs for unrestricted crane
operations and protection to IP23 for outdoor operations as well as a low
centre of gravity for high resistance to tipping.
•Robust with a solid sheet-steel housing ideal for the tough world of industry and trade.
•Easy to Service thanks to the clear layout of the modules in the machine.
•Universal Applications thanks to simple polarity switching for cored wire welding (Option).
•Reliable thanks to temperature gauges in the transformer and rectifier.
•Flexible thanks to the wide range of accessories and options such as, for example,:
remote control for wire compensation, Push/Pull- torch, etc.

1 About this step switched machine
1/2
1.2 Controls
1.2.1 Control M100
M100 / M110
Standard control M100 “Two-knob operation“
with functions such as steplessly adjustable wire feed
speed and pulse- pause time and the operating modes:
2-step (latch welding), 4-step (continuous welding, spot
welding, and tacking. Gas after-flow and wire burn-back
time as well as arc off wire threading and gas test can
be set internally.
Display unit M110 (Option - can be retro-fitted) in
conjunction with the M100 or M201
Two large LED- displays show the welding voltage and
welding current during and after welding (Hold-
Function).

1 About this step switched machine
1/3
1.2.2 Control Program M201
PROGRAM M201
Comfortable Micro-processor control
„PROGRAM“ M201
with one knob operation and 24 welding programmes for
a variety of welding applications which make work easier
for the user. The welder simply selects the type of
material and gas, the welding wire diameter and the
power range on the step switches and the machine is
already ready to weld. Tedious searching for the working
point is all done by the control. If the power range is set
too high or too low on the step switch - no problem! Signal
lamps show one should select a higher or lower range.
Further functions: Intelligent ignition management for
reliable and low splatter arc striking, automatic matching
of wire burn-back, wire input feed, gas pre- and post-flow
to suit the material selected; increased safety for both
machine and user due to automatic shut-down and short-
circuit recognition; steplessly adjustable wire feed rate
and wire feed compensation with arc-off feed-in of the
wire and gas test; Operating modes: 2- step (latch
on/latch off), 4 step (continuous welding), spot welding.
Options and accessories for use with the M201:
Wire compensation on the welding torch or on the remote
control, connections for MIG-Push/Pull torch with or
without wire feed correction potentiometer.

1 About this step switched machine
1/4
1.3 Range of Applications:
These machines are only for use for MIG / MAG standard welding with short- mixed- and
spray- arc using Argon, Mixed gases and CO2.
•Materials: Low and high alloyed steels, Aluminium- and Nickel based alloys,
Copper and its alloys.
Solid wire and cored wire electrodes
Applications: Production and repair welding in metalworking industries and trade,
maintenance of agricultural equipment, switchgear and ventilation work,
steelwork and engineering, tacking in production jobs,vehicles and
installation work etc.
•SSymbol Units may be used in accordance with VDE 0544 (EN 60974-1) in
where increased electrical danger exists.

2 Transport and Installation
2/1
Transport and Installation
•The machines may only be transported and operated in an upright position.
•Before moving, pull out mains plug and place on the machine.
•Secure high-pressure shielding gas cylinder with safety chain to prevent it from toppling
over.
•Do not roll over hoses or cables.
Place the shielding gas cylinder in the cylinder holder and secure it in place with the
securing chain.
Maximum permissible cylinder size at internal pressure:
•200 bar, up to 50 l geometrical volume,
•300 bar, up to 33 l geometrical volume.
When the current source is moved and positioned, it is only secure against falling to an
angle of 15° (as specified in EN 60974-1). Special attention should be paid to the fact
that, when the machine is moved, additional danger results from obstacles on the floor
as these can cause additional tilting moments.
Safety rules for crane transport
•Carefully observe the accident prevention regulations VBG 9, VBG 9a and VGB 15.
Fig. 1:
Crane principle
mind. 60°
mind. 1m
Fig. 2:
Angle of the
suspension ropes
•Lift with the crane at all 4 ring screws simultaneously
(as depicted in Fig. 1).
•Ensure an even distribution of the load to all four
ropes and maintain an angle of at least 60° of the
suspension ropes (see Fig. 2).
Use only ring chains or suspension ropes of equal length
(at least 1 m).
•Load hooks with securing cleats and skackles of
corresponding size to DIN 82 101, Form A.
Use minimum rated size 0.4.
•Before lifting with a crane, always remove the shielding gas cylinder from the welding
machine.
•Never lift other loads together with the welding machine,
e.g. persons, toolboxes, wire spools etc.
•Avoid jerks when raising and lowering the welding machine.

2 Transport and Installation
2/2
Environmental conditions:
The welding machine can be operated in a location where there is no risk of explosion at
•an ambient temperature of -10°C (plasma machines 0°C) to +40°C and
•a relative air humidity up to 50% at 40°C.
•where the surrounding air is free of unusual amounts of dust, acids, corrosive gases or
substances etc., insofar as they do not occur during welding.
Examples of unusual operating conditions:
Unusual corrosive smoke, vapour, excessive oil vapour, unusual vibrations or jolts, excessive
quantities of dust such as grinding dusts etc., severe weather conditions, unusual conditions
near the coast or on board ship.
•When installing the machine, ensure a free inlet and outlet of air.
The unit is tested to protection class IP23, i.e.:
•Protection against penetration of solid foreign bodies ∅> 12mm,
•Protection against water spray up to an angle of 60° to the vertical.

3 Technical Data
3/1
3.1 Saturn -Series
Saturn - Series MIG 200 MIG 250 MIG 300
Welding Current Range 30 - 200 A 30 - 250 A 30 - 300 A
Welding Voltage MIG 15 - 24 V 15 - 26,5 V 15 - 29 V
max. Welding Current at
30% Duty Cycle 200 A 250 A 300 A
max. Welding Current at
60% Duty Cycle 140 A 175 A 210 A
max. Welding Current at
100% Duty Cycle 110 A 135 A 165 A
Open Circuit voltage 15 V - 36 V 15,5 V - 37,5 V 15,5 V - 41 V
Mains fuses - slow acting 3 x 16 A 3 x 16 A 3 x 20 A
Switch Steps 12 15
Load cycle time 10 min
Mains Voltage 3 x 400 V / 415V (bei 50/60Hz)
max. Connected Power 7,1 kVA 9,6 kVA 12,8 kVA
Frequency 50/60 Hz
Wire-feed speed (compact) 1 m/min- 20 m/min
Work-piece Cable 35 mm250 mm2
Ambient Temperature -10°C - +40°C
Unit Cooling Fan
Torch Cooling Air
Euro central connection ja
Insulation Class H
Protection Type IP 23
Dimensions without gas
cylinders with cylinder holder
L/W/H
920 mm / 460 mm / 745 mm
Weight without accessories 93 Kg 102 Kg 112 Kg

4 Description of the System components
4/1
4.1 System Summary

4 Description of the System components
4/2
4.2 The Welding Power Source
4.2.1 SATURN 200 - 300 Welding Machine Series (Front and rearview)
Fig. 4/1; Front View
Fig. 4/2; Rear View
In the Unit
polarity switching

4 Description of the System components
4/3
4.2.1 SATURN 200 - 300 Welding Machine Series (Front- and rearview)
A1 Transport handle
B1 Control "PROGRAM" M201 / M100
C1 Main Switch, Machine On/Off
D1 LED for fault display for excess temperature and / or lack of coolant
1
E1 Welding Current Bush -, Work-piece connection
Choke tapping CO2(hard)
2
F1 Welding Current Bush -, Work-piece connection
Choke tapping MIX (medium)
G1 Rollers
H1 Crane lifting lugs
Option I1 Welding current and voltage display M110
1
12
11
10
9
86
5
4
3
2
J1 Step Switch, Fine setting for welding voltage (M100) or power (M201)
(MIG 200/250: 12 Steps), (MIG 300: 15 Steps)
K1 Welding Torch Connection +, (Euro-central connection)
L1 Remote Control Socket (Option), 19 pole connection for remote control or
control cable from the welding torch
M1 Air inlet opening
N1 Turning Roller
O1 Safety chain for gas cylinder
P1 Support for shielding gas cylinders
A2 Gas Connection G 1/4"
A1 Fuse, Control (42V / 4A slow-acting)
B1 Mains cable
C1 Opening for air outlet
D1 Adjustment setting - Gas after-flow
E1 Adjustment setting - wire burn-back
F1 Button for arc off wire threading
G1 polarity switching for cored wire welding (Option)

4 Description of the System components
4/4
4.3 Controls
4.3.1 Control "PROGRAM" M201
Fig.: 4/3 Control "PROGRAM" M201