Kemppi FastMig X 350MV User manual

1903440
R05
FastMig
X 350MV

OPERATING MANUAL
English

FastMig X 350MV
2
EN
CONTENTS
1. Introduction....................................................................................................... 3
1.1 General ....................................................................................................................................... 3
1.2 About FastMig X 350MV ...................................................................................................... 3
2. Installation..........................................................................................................4
2.1 Before use.................................................................................................................................. 4
2.2 Distribution network............................................................................................................. 4
2.3 Machine introduction........................................................................................................... 5
2.4 Positioning of the machine ................................................................................................ 5
2.5 Connecting cables ................................................................................................................. 6
2.5.1 Liquid-cooled system: FastMig X 350MV + WFX + Cool X ............................................ 6
2.5.2 Air-cooled system: FastMig X 350MV + WFX ................................................................. 7
2.5.3 Cable positions for multiple machine congurations................................................... 8
2.5.4 Connecting to mains power ........................................................................................... 8
2.5.5 Cables ............................................................................................................................... 9
2.5.6 Interconnection with wire feeder................................................................................... 9
3. Operation control..........................................................................................10
3.1 Main switch I/O .....................................................................................................................10
3.2 Pilot lamps...............................................................................................................................10
3.3 Operation of cooling fan ...................................................................................................10
3.4 Manual Metal Arc Welding................................................................................................10
3.5 Using external devices with CC and CV modes ........................................................10
4. Control panel X 37.........................................................................................11
4.1 Layout and button functions...........................................................................................11
4.2 Using the menus...................................................................................................................12
4.2.1 Selecting the interface language .................................................................................12
4.2.2 About memory channels ..............................................................................................12
4.2.3 Creating the rst memory channel ..............................................................................13
4.2.4 Creating the rst MMA/CC/CV memory channel ........................................................13
4.2.5 Creating and modifying memory channels.................................................................13
4.3 Welding parameters............................................................................................................14
4.4 Welding functions................................................................................................................16
4.5 Arc voltage display...............................................................................................................20
4.6 Welding software delivery prole..................................................................................20
5. Troubleshooting.............................................................................................21
6. Operation disturbances...............................................................................23
7. Maintenance....................................................................................................23
7.1 Daily maintenance...............................................................................................................23
7.2 Periodic maintenance.........................................................................................................24
7.3 Service Workshop maintenance.....................................................................................24
8. Disposal of the machine..............................................................................24
9. Ordering codes...............................................................................................25
10. Technical data.................................................................................................27

3
© Kemppi Oy / R05
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1. INTRODUCTION
1.1 General
Congratulations on choosing the FastMig X 350MV welding equipment. Used correctly,
Kemppi products can signicantly increase the productivity of your welding, and provide
years of economical service.
This operating manual contains important information on the use, maintenance and safety of
your Kemppi product. The technical specications of the equipment can be found at the end
of the manual.
Please read the operating manual and the safety instructions booklet carefully before using
the equipment for the rst time. For your own safety and that of your working environment,
pay particular attention to the safety instructions in the manual.
For more information on Kemppi products, contact Kemppi Oy, consult an authorised Kemppi
dealer, or visit the Kemppi web site at www.kemppi.com.
The specications presented in this manual are subject to change without prior notice.
Important notes
Items in the manual that require particular attention in order to minimise damage and
personal harm are indicated with the ’NOTE!’ notation. Read these sections carefully and follow
their instructions.
Disclaimer
While every eort has been made to ensure that the information contained in this guide
is accurate and complete, no liability can be accepted for any errors or omissions. Kemppi
reserves the right to change the specication of the product described at any time without
prior notice. Do not copy, record, reproduce or transmit the contents of this guide without
prior written permission from Kemppi.
1.2 About FastMig X 350MV
FastMig X 350MV is a multi-purpose welding power source designed for demanding
professional use. It is suitable for synergic pulsed MIG/MAG, synergic 1-MIG and basic MIG/
MAG welding, as well as the modied WiseRoot+™ and WiseThin+™ processes. It can also be
used as a welding power source for MMA welding, and TIG welding is also available when
connected to MasterTig LT 250.
Control panel X 37 is included in the delivery for selecting, setting and managing the welding
system prior to and during system use.
FastMig X 350MV oers a multi-process solution for a wide range of welding applications.
Various cable options, welding software options, remote control units and other accessories
are available for this product. Please see the list at the end of this manual.

FastMig X 350MV
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2. INSTALLATION
2.1 Before use
The product is packed in specially designed transport cartons. However, before use always
make sure the products have not been damaged during transportation.
Check also that you have received the components you ordered and the corresponding
instruction manuals. Product packaging material is recyclable.
NOTE! When moving the welding machine, always lift it from the handle, never pull it from the
welding gun or other cables.
Operating environment
This machine is suitable for both indoor and outdoor use. Always make sure that the air
ow to the machine is unrestricted. The recommended operating temperature range is
–20…+40°C.
Please ensure you read the safety instructions concerning operating environments supplied in
this manual.
2.2 Distribution network
All regular electrical devices without special circuits generate harmonic currents into
distribution network. High rates of harmonic current may cause losses and disturbance to
some equipment.
FastMig X 350MV
This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc is
greater than or equal to 5.5 MVA at the interface point between the user’s supply and the
public suply network. It is the responsibility of the installer or user of the equipment to ensure,
by consultation with the distribution network operator if necessary, that the equipment is
connected only to a supply with a short-circuit power Ssc greater than or equal to 5.5 MVA.
NOTE! The above applies only when connected to the mains supply of 380...440 V 3~.

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2.3 Machine introduction
CHANNEL
6,3A
V
1.
2. 3.
4.
8.
10.
5.
7.
9.
6.
11.
1. Control panel X 37
2. Main switch (ON/OFF)
3. Power on pilot lamp
4. Overheating pilot lamp
5. Welding cable connection, negative pole (–)
6. Welding cable connection, positive pole (+)
7. Control cable connection
8. Fuse (delayed 6.3 A)
9. Control cable connection
10. Mains power cable
11. Measurement cable connection
2.4 Positioning of the machine
Place the machine on a sturdy, level surface that is dry and does not allow dust or other
impurities to enter the machines cooling air ow. Preferably site the machine to a suitable
carriage unit so it is above oor level.
Notes for positioning the machine
• The surface inclination may not exceed 15 degrees.
• Ensure the free circulation of the cooling air. There must be at least 20 cm of free space in
front of and behind the machine for cooling air circulation.
• Protect the machine against heavy rain and direct sunshine.
NOTE! The machine is not allowed to be operated in the rain as the protection class of the machine,
IP23S, allows preserving and storing outside only.
NOTE! Never aim the spray of sparks from a grinding machine toward the equipment.

FastMig X 350MV
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2.5 Connecting cables
NOTE! Always check before use that the mains cable, earth return cable and its clamp,
interconnection cable and shielding gas hose are in a serviceable condition. Ensure that connectors
are correctly fastened. Lose connectors can impair welding performance and damage connectors.
2.5.1 Liquid-cooled system: FastMig X 350MV + WFX + Cool X
1.
4.
8.
10.
2.
3.
9.
5.
6.
11.
7.
V
V
12.
1. WFX wire feed unit
2. FastMig X 350MV power source
3. Cool X cooling unit and power connection
4. Gas supply
5. MMA electrode holder
6. Remote control device
7. Liquid-cooled welding gun
8. Power cable
9. Earth return cable and clamp
10. Measurement cable (from power source to wire feeder)
11. Voltage sensing cable (from wire feeder to work piece)
12. Control cable

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2.5.2 Air-cooled system: FastMig X 350MV + WFX
1.
4.
5.
10.
6.
8.
2.
3.
7.
9. V
V
11.
1. WFX wire feed unit
2. FastMig X 350MV power source
3. Gas supply
4. MMA electrode holder
5. Remote control device
6. Air-cooled welding gun
7. Power cable
8. Earth return cable and clamp
9. Measurement cable (from power source to wire feeder)
10. Voltage sensing cable (from wire feeder to work piece)
11. Control cable

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2.5.3 Cable positions for multiple machine congurations
When using two or more FastMig X 350MV units working on the same work piece, the right
positioning of voltage sensing cable and the earth return cable is important.
In order for the voltage sensing function to work properly, the earth return cable and the
voltage sensing cable for each FastMig X 350MV unit should be connected close to each other
and away from other units’cables (see the pictures below).
2.5.4 Connecting to mains power
FastMig power sources are delivered as standard with 5 meters of mains power cable. No
mains plug is tted at the Kemppi factory.
NOTE! If local country-based regulations state an alternative power cable is required, the mains
cable must be replaced in conformity with the regulations. Connection and installation of the
mains cable and plug should only be carried out by a suitably qualied person.
Remove the machine cover plate to enable mounting of a mains cable. FastMig X 350MV
power sources can be connected to the mains supply of 220...230 V 3~ or 380...440 V 3~ .
If changing the mains cable take into consideration the following:
The cable is entered into the machine through the inlet ring on the rear panel of the machine
and fastened with a cable clamp (05). The phase conductors of the cable are coupled to
connectors L1, L2 and L3. The earth protection coloured green-yellow is coupled to the
marked connector.
If you are using 5-lead cable, do not connect the neutral conductor.
05
*)
L3
L2
L1
*) In cables of S type there is a protective grounding conductor coloured green-yellow.
Generator use
If no mains connection is available, you can use FastMig X 350MV on a generator. The
minimum recommended generator output is 35 kVA. The greater the output, the more stable
is the FastMig X 350MV operation.

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2.5.5 Cables
Kemppi always recommend the use of high quality copper cables with a suitable cross-
sectional area. Cable size should be selected depending on the intended welding application.
50 mm² copper cables may be used for low duty work in basic or synergic 1-MIG. However,
using pulsed MIG/MAG process, longer cables, or higher welding power increase the voltage
loss, and therefore smaller cross sectional interconnection cables and earth return cables will
restrict the welding performance of your machine.
Recommended cross-sectional area of FastMig X 350MV cables: 70 – 95 mm².
The enclosed table shows typical load capacities and voltage loss values of rubber insulated
copper cables for duty cycles 100%, 60% and 30%, when ambient temperature is 25 °C and
the cable temperature is 85 °C.
Cable size 100 % 60 % 30 % Voltage loss / 10 m
50 mm² 285 A 370 A 520 A 0.35V / 100 A
70 mm² 355 A 460 A 650 A 0.25V / 100 A
95 mm² 430 A 560 A 790 A 0.18V / 100 A
Do not overload the cables due to voltage losses and heating.
NOTE! Always check the serviceability of the earth return cable and clamp. Ensure the metal
surface to which the cable is connected is clean from metal oxide or paint. Check the connector to
the power source is fastened correctly.
2.5.6 Interconnection with wire feeder
Kemppi provide a choice of interconnection cable sets for dierent environments. Only
materials that meet the demands of Kemppi's international markets are used in their
construction.
Used correctly, Kemppi cable sets ensure high welding performance and serviceability.
Before use, always ensure the cable set is in good condition and that connectors are correctly
fastened. Loose connections reduce welding performance and may result in damage to
connectors due to heating eects.
For correct connection and conguration of cable sets, please refer to schematic drawings in
section 2.5 of this manual.
NOTE! FastMig X 350MV power sources are designed to be used with WFX wire feed units.

FastMig X 350MV
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3. OPERATION CONTROL
3.1 Main switch I/O
When you turn the on/o switch into position I, the pilot warning lamp is illuminated and the
machine is ready for use. Always turn the machine on and o with the power source mains
switch. Never use the mains plugs as a switch.
3.2 Pilot lamps
The pilot lamps of the machine report its operational state:
When the green pilot lamp is on, it indicates that the machine is switched on and ready for
use.
When the orange pilot lamp is on, it indicates that the machine is overheated due to higher
than normal working loads that exceed the rated duty cycle. The cooling fan will continue to
run and cool the machine down. When the lamp is o the machine is again ready to weld.
3.3 Operation of cooling fan
FastMig X 350MV power sources incorporate two simultaneously operating fans.
• The fan is started momentarily when the main switch is turned into position I.
• The fan will start during welding as the machine reaches operational temperature, and
it will run for 1 to 10 minutes after the welding has stopped, depending on the welding
cycle completed.
3.4 Manual Metal Arc Welding
MMA electrode welding is a standard feature of FastMig X 350MV power source. To use it you
need to connect the electrode holder to the power source positive pole (+) and select the
MMA welding mode either from the power source or from the wire feeder:
• In power source control panel, select MMA/CC/CV Mode from the main menu list.
– OR –
• in wire feeder control panel, select MMA/CC/CV option with a long press of the
corresponding up-down-arrow.
NOTE! There must be an MMA memory channel dened before you can use these modes. To create
a memory channel, see the Control panel section of this manual.
3.5 Using external devices with CC and CV modes
FastMig X 350MV is a CC (constant current) and CV (constant voltage) power source. With this
function you can use it as a power source for the voltage sensing wire feeder ArcFeed and TIG
welding device MasterTig LT 250.
To use the CC/CV function you select MMA/CC/CV Mode option from the main menu of the
power source control panel.
NOTE! There must be a CC or CV memory channel dened before you can use these modes. To
create a memory channel, see the Control panel section of this manual.

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4. CONTROL PANEL X 37
FastMig X 350MV power source features X 37 control panel with a clear and logical LCD menu
display. The menu allows the operator to rene, adapt and manage the arc process and system
function before, during and after welding.
The following information details control panel layout, button functions, operation and set-
up. The menu options and their descriptions are listed for each menu command.
4.1 Layout and button functions
MENU
CHANNEL
INFO USER WF#
F1 F2 F3 X 37
W007238
1. 4.
5.6.
2. 7.
3.
8.
1. ON/OFF button
• Short press returns the panel to default initial view (channel information).
• Long press (>5 sec) turns X 37 panel and wire feeder panel XF 37 (or XF 38) ON or OFF.
• Keeping this button pressed while turning the machine ON restores to factory settings. The
panel asks for a conrmation before restoring to defaults.
• If X 37 panel is OFF and a wire feeder panel XF 37 (or XF 38) is turned ON, the X 37 panel will
also be turned ON and linked automatically to this wire feeder panel.
NOTE! This button connects power to the control panel. Use the main switch on the front of the
power source to switch the power source on or o.
2. Welding channel selection buttons
FastMig X 350MV oers 100 memory channels (10 for each user) for storing frequently used
welding jobs.
• To browse memory channels, press + and – buttons.
• To store a new welding job to an empty channel, press the soft key under the display
text NEW.
3. MENU button
This button takes you to the main menu list. Proceed following the instructions on screen.
X 37 main menu list
Edit Channel Make changes to existing welding channel
User Identification Selecti one user out of ten
Weld Data Check out the values of the last weld
System Config Menu Show device conguration and information

FastMig X 350MV
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Language Select your menu language
Select Feeder (WF#) Select another parallel wire feeder as a setup target
MMA/CC/CV Mode Activate MMA welding, or use CC or CV mode for ArcFeed or MasterTig LT
250
4. Adjustment knob
Turn the knob to change the value of the selected parameter. In MMA/CV/CC mode when
panel is in default initial view (channel information), knob can be used to adjust current
(MMA and CC) or voltage (CV).
5. Menu browsing buttons
Use up and down arrows to move the selection up and down in the menu structure. In
MMA/CV/CC mode when panel is in default initial view (channel information), Up/Down
buttons can be used to adjust Arcforce (MMA) and Dynamics (CV/CC).
6. Menu shortcut buttons
• F1 (CHANNEL INFO) displays the basic data recorded to the displayed channel. Pressing
F1 multiple times gives more information of the selected memory channel. Keeping F1
pressed while turning the machine ON restores the menu language to English.
• F2 (USER) Browses and selects users: 1…10, Administrator. When MMA/CC/CV is
selected, only Administrator is allowed.
• F3 (WF#) Selects another wire feeder as a setup target. Panel allows selecting only those
WF numbers that are found connected on the system. When MMA/CC/CV is selected, the
display shows text ”MMA/CC/CV Mode”.
NOTE! FastMig X 350MV allows up to 3 wire feeders to be connected to one power source. Only
one wire feeder can be active at a time and must be selected before it will operate.
7. LCD menu display
8. Soft key buttons for menu selection
Use these buttons to select menu items. Their functions depend on selected menu items.
The function is shown on the display.
4.2 Using the menus
4.2.1 Selecting the interface language
The default menu language is English. If you want to select another menu language, do the
following:
1. Connect the mains power and switch on the power source at the main switch.
• If this is the initial system activation (if SYSTEM OFF text is in the display), you may
need to press and hold the POWER ON button in the to left corner of the X 37 control
panel. Hold the button down for 5 seconds.
2. Press the MENU button to display the main menu, which includes 7 menu items.
• You can move around in the menu list by pressing the up and down arrow buttons.
• As you browse the menu item list, the currently selected item is shown at the bottom
of the display, marked as 1/7, 2/7, 3/7 etc.
• The selected menu item is marked with a black arrow-shaped cursor.
3. Browse to the menu item LANGUAGE (5/7) and press the SELECT soft key button.
4. BrowsetoyourlanguageandpresstheSELECT/SAVE softkeybutton.Yourlanguagechoiceis
now conrmed and will remain selected unless you change it later.
4.2.2 About memory channels
You can have several setups of welding parameter values for use in various welding
applications. These setups (or welding jobs) are stored as memory channels in X 37 control
panel.
Up to 10 user proles can be dened in one FastMig X 350MV unit, and each of them are
assigned up to 10 memory channels. So, you have maximum of 100 memory channels to
store your frequently used welding jobs. In addition to them, there are 10 memory channels

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available for MMA/CC/CV use.
To dene a new welding job, you need to make the necessary welding parameter selections
and then save them to a memory channel of your choice.
When you want to use these settings, you simply select the corresponding memory channel
number on the power source or wire feeder control panel and start welding. Only the most
often used controls are available in the wire feeder control panel, making welding easy and
convenient.
You can use and update any memory channel, unless it is locked via the four-digit
administrator pin code lock.
4.2.3 Creating the rst memory channel
If you are starting a new FastMig X 350MV that contains no memory channels, follow these
steps to create the rst memory channel.
1. Poweronthemachinefromthemainswitch.Youmayneedtopressthecontrolpanel'sPower
On button for 5 seconds to activate the X 37 control panel.
2. An empty memory channel appears. Press the NEW soft key.
3. With Create New selected, press SELECT soft key.
4. Select the desired welding process and other welding parameters.
• Use up and down arrow buttons to move around in the menus
• Approve selections by pressing the SELECT soft key.
5. When you have made all settings , press SAVE soft key to store the settings in the active
memory channel.
4.2.4 Creating the rst MMA/CC/CV memory channel
If you are starting a new FastMig X 350MV that contains no MMA/CC/CV memory channels,
follow these steps to create the rst MMA/CC/CV memory channel.
1. Press MENU button to display the main menu.
2. With up and down arrows, browse to MMA/CC/CV Mode (7/7) and press SELECT.
• MMA/CC/CV Mode view appears
3. With the adjustment knob, select ON and press SELECT.
• An empty MMA/CC/CV memory channel appears.
4. When an empty MMA/CC/CV memory channel appears, press NEW soft key.
5. With Create New selected, press SELECT soft key.
6. Select MMA, CC or CV and other parameters.
7. When you have made all settings, press SAVE soft key to store the settings in the active
memory channel.
4.2.5 Creating and modifying memory channels
1. Press MENU button to display the main menu.
2. With Edit Channel selected, press SELECT.
3. Select the channel number to be changed and press SELECT.
• Use up and down arrow buttons to browse the displayed channel numbers.
• Use Channel Info (F1) button to see the show the settings of the displayed channel.
• To create a new channel, select a channel that is marked (Empty).
4. Browse the menu to select the desired options and parameters.
• Use up and down arrow buttons to move around in the menus.
• Approve selections by pressing the SELECT soft key.
• See the welding parameters and functions section of this manual.
5. When you have made all settings, press SAVE soft key to store the settings in the selected
memory channel number.
When you have created a memory channel, the system is ready to weld. You select the desired
memory channel number on wire feeder's control panel, set the welding power and arc length
and start welding.

FastMig X 350MV
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4.3 Welding parameters
MIG
WFSpeed 0.7…25 m/min Sets the wire feed speed.
Changes by steps of 0.05, whenWFSpeed < 5 m/min, and
by 0.1, whenWFSpeed > 5 m/min
WFS-Max Sets the limit for maximumWFSpeed
WFS-Min Sets the limit for minimumWFSpeed
Voltage 8…50V Step: 0.1 Controls the length of the arc
VoltageMax Sets the limit for maximum voltage value
VoltageMin Sets the limit for minimum voltage value
Dynamics -9…+9 Factory setting is 0 Controls the short circuit behaviour of the arc.The lower
the value the softer the arc is.The higher the value the
rougher the arc is.
1-MIG
WFSpeed 0.7…25 m/min * Sets the wire feed speed.
Changes by steps of 0.05, whenWFSpeed < 5 m/min, and
by 0.1, whenWFSpeed > 5 m/min
WFS-Max Sets the limit for maximumWFSpeed
WFS-Min Sets the limit for minimumWFSpeed
FineTuning -9.0…+9.0 Factory setting is 0.0
( = curve point)
Adjusts the arc voltage of the curve (arc length) within
certain limits
FineTuningMax -9.0…+9.0 Step: 0.5 Sets the limit for maximum arc length
FineTuningMin -9.0…+9.0 Step: 0.5 Sets the limit for minimum arc length
Dynamics -9…+9 Factory setting is 0 Controls the short circuit behaviour of the arc.The lower
the value the softer the arc is.The higher the value the
rougher the arc is.
PULSE MIG
WFSpeed 0.7…25 m/min * Sets the wire feed speed.
Changes by steps of 0.05, whenWFSpeed
< 5 m/min, and by 0.1, whenWFSpeed > 5 m/min
WFS-Max Sets the limit for maximumWFSpeed
WFS-Min Sets the limit for minimumWFSpeed
FineTuning -9.0…+9.0 Factory setting is 0.0
( = curve point)
Adjusts the base current of the curve (arc length) in
certain limits
FineTuningMax -9.0…+9.0 Step: 0.5 Sets the limit for maximum arc length
FineTuningMin -9.0…+9.0 Step: 0.5 Sets the limit for minimum arc length
Dynamics -9…+9 Factory setting is 0 Controls the short circuit behaviour of the arc.The lower
the value the softer the arc is.The higher the value the
rougher the arc is.
Pulse Current -10…+15% Factory setting is
0 %
Reduces (–) or raises (+) the pulse current of the curve

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DOUBLE PULSE MIG
WFSpeed 0.7…25 m/min * Sets the wire feed speed.
Changes by steps of 0.05, whenWFSpeed < 5 m/min, and
by 0.1, whenWFSpeed > 5 m/min
WFS-Max Sets the limit for maximumWFSpeed
WFS-Min Sets the limit for minimumWFSpeed
FineTuning -9.0…+9.0 Factory setting is 0.0
( = curve point)
Adjusts the base current of the curve (arc length) in
certain limits
FineTuningMax -9.0…+9.0 Step: 0.5 Sets the limit for maximum arc length
FineTuningMin -9.0…+9.0 Step: 0.5 Sets the limit for minimum arc length
Dynamics -9…+9 Factory setting is 0 Controls the short circuit behaviour of the arc.The lower
the value the softer the arc is.The higher the value the
rougher the arc is.
Pulse Current -10…+15% Factory setting
is 0%
Reduces (-) or raises (+) the pulse current of the curve
DPulseAmp 0.1…3.0 m/min Factory setting is
CURVE
Adjusts the amplitude of theWFSpeed by steps of 0.1.
Value comes from welding program.
DPulseFreq 0.4…8.0 Hz Factory setting is
CURVE
Adjusts the frequency of the double pulse by steps of 0.1.
Value comes from welding program.
WISEROOT+
WFSpeed 1.5…8.0 m/min * Sets the wire feed speed.
Changes by steps of 0.05, whenWFSpeed < 5 m/min,
and by 0.1, whenWFSpeed > 5 m/min
WFS-Max Sets the limit for maximumWFSpeed
WFS-Min Sets the limit for minimum WFSpeed
FineTuning -9.0…+9.0 Factory setting is 0.0
( = curve point)
Adjusts the base current of the curve (heat of the arc)
within certain limits.
FineTuningMax -9.0…+9.0 Step: 0.5 Sets the limit for maximum heat of the arc
FineTuningMin -9.0…+9.0 Step: 0.5 Sets the limit for minimum heat of the arc
* Dierent welding programs may further restrict the value range.
WISETHIN+
WFSpeed 0.7…25 m/min * Sets the wire feed speed.
Changes by steps of 0.05, whenWFSpeed < 5 m/min, and
by 0.1, whenWFSpeed > 5 m/min
WFS-Max Sets the limit for maximumWFSpeed
WFS-Min Sets the limit for minimumWFSpeed
FineTuning -9.0…+9.0 Factory setting is 0.0
( = curve point)
Adjusts the arc voltage of the curve (arc length) within
certain limits
FineTuningMax -9.0…+9.0 Step: 0.5 Sets the limit for maximum arc length
FineTuningMin -9.0…+9.0 Step: 0.5 Sets the limit for minimum arc length
Dynamics -9…+9 Factory setting is 0 Controls the short circuit behaviour of the arc.The lower
the value the softer the arc is.The higher the value the
rougher the arc is.

FastMig X 350MV
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MMA PROCESSES
Current 14…350 A Welding current
CurrentMax 14…350 A Set the limit for maximum current value
CurrentMin 14…350 A Set the limit for minimum current value
ArcForce -9…+9 Factory setting is 0 Controls the short circuit behaviour of the arc.The lower
the value the softer the arc is.The higher the value the
rougher the arc is.
StartPower -9…+9 Factory setting is 0 Adjusts arc ignition
CC PROCESS
Current 10…350 A Welding current
CurrentMax 10…350 A Set the limit for maximum current value
CurrentMin 10…350 A Set the limit for minimum current value
Dynamics -9…+9 Factory setting is 0 Controls the short circuit behaviour of the arc.The
lower the value the softer the arc is.The higher the
value the rougher the arc is.
StartPower -9…+9 Factory setting is 0 Adjusts arc ignition
CV PROCESS
Voltage 10…50V Welding voltage
VoltageMax 10…50V Set the limit for maximum voltage value
VoltageMin 10…50V Set the limit for minimum voltage value
Dynamics -9…+9 Factory setting is 0 Controls the short circuit behaviour of the arc.The
lower the value the softer the arc is.The higher the
value the rougher the arc is.
StartPower -9…+9 Factory setting is 0 Adjusts arc ignition
4.4 Welding functions
WISEROOT+ AND OTHER PROCESSES
2T/4T 2T, 4T, MATCHLOG,
USER
Factory setting is USER (user
chooses the switching logic)
Sets switching logic
HotStart ON, OFF, USER Factory setting is USER (user
chooses ON or OFF)
HotStartLevel -50…+100 % Step: 1
Factory setting 40%
Hot 2T Time 0…9.9 s Step: 0.1
Factory setting is 1.2 s
CraterFill ON, OFF, USER Factory setting is USER (user
chooses ON or OFF)
CraterStart 10…250 % Factory setting is 100% Sets the level of the curve where the crater
lling will start
CraterFillEnd 10…250 %, not
higher than start
Step: 1
Factory setting is 30%
Sets the level of the curve where the crater
lling will end.
CraterTime 0.0…10.0 s Step: 0.1.
Factory setting is 1.0 s
Sets slope time for crate lling

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Crater 4T Timer On, OFF Factory setting is OFF ON: if 4T is selected, crater lling will last
at least time that has been adjusted by
CraterTime or as long as trigger is pressed.
OFF: if 4T is selected, crater lling will last
as long as trigger is pressed.
Creep Start 10…99 % Step: 1
OFF, CURVE (OFF=100%)
Factory setting is CURVE
CURVE means that the creep start value
comes from welding program.
StartPower -9…+9 Factory setting is 0 Adjusts arc ignition.
ADVANCED FUNCTIONS
WisePenet ON, OFF Penetration control selection
Penet%(123A) -30…+30 % Factory setting: 0 % WisePenetration percent setting. Set
penetration current.
WiseFusion ON, OFF WiseFusion selection
WiseFusion% 10…60 % or
CURVE
Factory setting is CURVE WhenWiseFusion is ON, it controls the
amount of short circuits in the arc.The
lower the value, the less short circuits in
the arc, and the higher the value, the more
short circuits in the arc.
MatchFunc * Minilog, MatchCh
OFF
Default is OFF Selects the type of function for toggling
between two sets of welding parameters
during welding:
Minilog=percentage of base current
MatchCh=alternative memory channel
MinilogLevel -99…+125 % Factory setting is 20 Sets the alternative current level to a
percentage of the base current
MatchMemChannel 0…9 Factory setting is 0 Sets the pre-dened memory channel,
where the alternative set of parameters is
stored
* MatchFunc is a function that allows you to use two pre-dened sets of welding parameters
during welding. You can toggle between these parameter sets by pressing the welding gun
trigger briey without having to stop welding.
SYSTEM CONFIG MENU
Water Cooling ON, OFF, AUTO Factory setting is AUTO Water cooler control.
ON:Water cooler is always ON
OFF:Water cooler is always OFF
AUTO: Water cooler starts when welding
starts and turns o after a delay when
welding stops.
Cable Length 10…100 m Step: 5
Factory setting is 10m
Welding cable loop length setting for
optimising arc control.
FineCalib 0V/100A…10V/100A Step: 0.1V
Factory setting is 1.0V/100A
FineTuning Calibration Point. Compensation
for varying cable resistance.
System Clock System Clock Settings
Device List Shows a list of connected devices.

FastMig X 350MV
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Info Shows following information about the selected device.
Device name:
DevSW: Unit software version.
SysSW: System software version (base software version).
BootSW: Boot software version.
SW Item: Software item number (IFS code).
Serial: Device serial number.
Prog: Programmer name
Date: Programming time and date.
Restore Settings User 1 (one of ten users) Channel:
Selected user can restore to his backup memory channels one by one.
Other users’memory channels remain untouched.
Setup settings remain untouched.
User 1 (one of ten users) All Channels:
Selected user can restore all of his backup memory channels (0-9) at one time.
Other users’memory channels remain untouched.
Setup settings remain untouched.
RestoreTo Factory:
All channels (of all users) are removed.
All users’backup channels are removed.
All setup settings are set to defaults.
When MMA/CC/CV Mode is selected, the Restore Settings options are:
MMA/CC/CV Channel
MMA All channels
RestoreTo Factory
Licence Menu Licence Code allows you to enter the licence code:
- Up and down arrows are used to select the code number position.
- Pulse encoder is used to select the code number (0–255) to be entered.
- Soft key button on the right is used to activate the licence number (after all numbers have been
entered). In case the code was wrong the earlier view will be displayed.
Licence Timers allows you to check the remaining time of the time-basedWise features.
WeldData Delay 1…60 s Step: 1
Factory Setting is 20 s.
Denes how long time theWeld Data is
displayed after welding ends.
Weld Data display is also turned o when
pulse encoder is turned or any button is
pressed.
Display Delay 1…20 s Step: 1
Factory setting is 10
Denes how long time the information is
displayed (e.g.“Setting Saved”text).This is
not always the exact time.
Pre Gas Time 0.0…9.9 s, CURVE. Step: 0.1
Factory settings is CURVE
CURVE: Pre Gas time is read from the
Welding program.
0.0 – 9.9s: User Pre Gas time setting.
Post Gas Time 0.0…9.9 s, CURVE. Step: 0.1
Factory settings is CURVE
CURVE: Post Gas time is read from the
Welding program.
0.0 – 9.9s: User Post Gas time setting.