EWM Puls User manual

Operating instructions
EN
Control
Puls (M3.7X-K)
099-0M37XK-EW501
Observe additional system documents!
16.07.2018

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

Contents
Notes on the use of these operating instructions
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1 Contents
1Contents..................................................................................................................................................3
2For your safety.......................................................................................................................................5
2.1 Notes on the use of these operating instructions ..........................................................................5
2.2 Explanation of icons.......................................................................................................................5
2.3 Part of the complete documentation..............................................................................................6
3Intended use...........................................................................................................................................7
3.1 Use and operation solely with the following machines..................................................................7
3.2 Documents which also apply.........................................................................................................7
3.3 Software version............................................................................................................................7
3.4 Machine control –Operating elements..........................................................................................7
3.4.1 Overview of control sections ..........................................................................................7
3.4.1.1 Control section A.............................................................................................9
3.4.1.2 Control section B...........................................................................................10
3.5 Welding data display....................................................................................................................12
3.6 Operating the machine control.....................................................................................................12
3.6.1 Main screen..................................................................................................................12
3.6.2 Welding power setting..................................................................................................12
3.6.3 Setting advanced welding parameters (Expert menu).................................................12
3.6.4 Changing basic settings (machine configuration menu) ..............................................13
3.6.5 Lock function ................................................................................................................13
4Functional characteristics...................................................................................................................14
4.1.1 Shielding gas volume settings......................................................................................14
4.1.1.1 Gas test.........................................................................................................14
4.1.1.2 Purge hose package.....................................................................................14
4.1.1.3 Wire thread....................................................................................................15
4.1.2 Wire return....................................................................................................................15
4.2 MIG/MAG welding........................................................................................................................16
4.2.1 Welding task selection..................................................................................................16
4.2.1.1 Basic welding parameters.............................................................................16
4.2.1.2 Operating mode ............................................................................................16
4.2.2 Welding type.................................................................................................................17
4.2.2.1 Welding power (operating point)...................................................................17
4.2.2.2 Accessory components for operating point setting.......................................17
4.2.2.3 Arc length......................................................................................................18
4.2.2.4 Arc dynamics (choke effect)..........................................................................18
4.2.3 Expert menu (MIG/MAG)..............................................................................................19
4.2.3.1 Burn-back......................................................................................................20
4.2.4 Program sequence.......................................................................................................20
4.2.5 Operating modes (functional sequences) ....................................................................20
4.2.5.1 Explanation of signs and functions ...............................................................20
4.2.5.2 Automatic cut-out..........................................................................................21
4.2.6 Standard MIG/MAG torch.............................................................................................24
4.2.6.1 Switching between Push/Pull and intermediate drive...................................24
4.3 MMA welding ...............................................................................................................................24
4.3.1 Welding task selection..................................................................................................24
4.3.2 Welding current setting.................................................................................................25
4.3.3 Arcforce........................................................................................................................25
4.3.4 Hotstart.........................................................................................................................25
4.3.5 Antistick........................................................................................................................25
4.4 Special parameters (advanced settings) .....................................................................................26
4.4.1 Selecting, changing and saving parameters................................................................26
4.4.1.1 Ramp time for wire inching (P1)....................................................................27
4.4.1.2 Latched/special-latched tap start (P9) ..........................................................27
4.4.1.3 Hold function (P15) .......................................................................................27
4.4.1.4 Correction or nominal voltage display (P24).................................................27
4.4.1.5 Units system (P29)........................................................................................27
4.4.1.6 Reset to factory settings ...............................................................................27
4.5 Machine configuration menu........................................................................................................28

Contents
Notes on the use of these operating instructions
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4.5.1 Selecting, changing and saving parameters.................................................................28
4.5.2 Aligning the cable resistance........................................................................................29
4.5.3 Power-saving mode (Standby).....................................................................................30
5Rectifying faults....................................................................................................................................31
5.1 Display machine control software version....................................................................................31
5.2 Error messages (power source)...................................................................................................31
5.3 Resetting JOBs (welding tasks) to the factory settings................................................................32
5.3.1 Resetting a single JOB.................................................................................................32
5.3.2 Resetting all JOBs........................................................................................................33
6Appendix A............................................................................................................................................34
6.1 JOB-List........................................................................................................................................34
7Appendix B............................................................................................................................................35
7.1 Parameter overview –setting ranges ..........................................................................................35
7.1.1 MIG/MAG welding.........................................................................................................35
7.1.2 MMA welding................................................................................................................35
8Appendix C............................................................................................................................................36
8.1 Searching for a dealer..................................................................................................................36

For your safety
Notes on the use of these operating instructions
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2 For your safety
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.
Technical aspects which the user must observe to avoid material or equipment damage.
Instructions and lists detailing step-by-step actions for given situations can be recognised via bullet
points, e.g.:
•Insert the welding current lead socket into the relevant socket and lock.
2.2 Explanation of icons
Symbol
Description
Symbol
Description
Indicates technical aspects which the
user must observe.
Activate and release / Tap / Tip
Switch off machine
Release
Switch on machine
Press and hold
Switch
Incorrect / Invalid
Turn
Correct / Valid
Numerical value –adjustable
Input
Signal light lights up in green
Navigation
Signal light flashes green
Output
Signal light lights up in red

For your safety
Part of the complete documentation
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Symbol
Description
Symbol
Description
Time representation (e.g.: wait 4 s /
actuate)
Signal light flashes red
Interruption in the menu display (other
setting options possible)
Tool not required/do not use
Tool required/use
2.3 Part of the complete documentation
These operating instructions are part of the complete documentation and valid only in
combination with all other parts of these instructions! Read and observe the operating
instructions for all system components, especially the safety instructions!
The illustration shows a general example of a welding system.
Figure 2-1
Item
Documentation
A.1
Wire feeder
A.2
Conversion instructions
A.3
Power source
A.4
Cooling unit, voltage converter, tool box etc.
A.5
Trolley
A.6
Welding torch
A.7
Remote control
A.8
Control
A
Complete documentation

Intended use
Use and operation solely with the following machines
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3 Intended use
WARNING
Hazards due to improper usage!
The machine has been constructed to the state of the art and any regulations and
standards applicable for use in industry and trade. It may only be used for the welding
procedures indicated at the rating plate. Hazards may arise for persons, animals and
material objects if the equipment is not used correctly. No liability is accepted for any
damages arising from improper usage!
•The equipment must only be used in line with its designated purpose and by trained or
expert personnel!
•Do not improperly modify or convert the equipment!
3.1 Use and operation solely with the following machines
This description may only be applied to machines with the M3.7X-K machine control.
3.2 Documents which also apply
•Operating instructions for the connected welding machines
•Documents of the optional expansions
3.3 Software version
These instructions apply to the following software version:
1.0.9.0
The software version of the machine control can be displayed in the machine configuration menu
(menu Srv) > see 4.5 chapter.
3.4 Machine control –Operating elements
3.4.1 Overview of control sections
For description purposes, the machine control has been divided into two sections (A, B) to
ensure maximum clarity. The setting ranges for the parameter values are summarised in the
parameter overview section > see 7.1 chapter.

Intended use
Machine control –Operating elements
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Figure 3-1
Item
Symbol
Description 0
1
Control section A
> see 3.4.1.1 chapter
2
Control section B
> see 3.4.1.2 chapter

Intended use
Machine control –Operating elements
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3.4.1.1 Control section A
Figure 3-2
Item
Symbol
Description 0
1
JOB-
LIST
Welding task push-button (JOB)
Select the welding task from the welding task list (JOB-LIST). The list can be found
inside the protective cap on the wire feeder and in the appendix to these operating
instructions.
2
Click wheel welding power
•-----------Setting the welding power > see 3.6.2 chapter
•-----------Setting various parameters values depending on the preselection.
The white signal lights (LED) around the rotary knob light up when setting is possible.
3
Operating mode selection push-button
---------Non-latched
--------Latched
---------Special latched
4
"Welding type" push-button (for machine versions with pulsed arc welding
procedures only)
--------standard MIG/MAG welding
----pulsed MIG/MAG welding
5
Display of arc dynamics
The height and orientation of the set arc dynamics are displayed.

Intended use
Machine control –Operating elements
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Item
Symbol
Description 0
6
Correction of arc length click wheel
•---------- Setting the arc length correction > see 4.2.2.3 chapter
•---------- Setting arc dynamics > see 4.2.2.4 chapter
•---------- Setting various parameters values depending on the preselection.
The white signal lights (LED) around the rotary knob light up when setting is possible.
3.4.1.2 Control section B
Figure 3-3
Item
Symbol
Description 0
1
Display left / Lock function push-button
Switching the device display between various welding parameters. Signal lamps show
the selected parameter.
-------- Press for 3 s to put the machine into lock function > see 3.6.5 chapter.
2
Wire feed speed unit signal light
m/min--- Parameter value is displayed in meters per minute.
ipm ------ Parameter value is displayed in inches per minute.
Switching between metric or imperial system via special parameters
"P29" > see 4.4 chapter.
3
Material thickness signal light
Indication of the selected material thickness.
4
Welding current signal light
Display of the welding current in amperes.
5
Signal light, Wire speed
Lights when the wire speed is shown on the display.
6
Lock function signal light
Use display left / lock function push-button to switch on and off.
7
Correction voltage arc length signal light
Display of correction voltage arc length in volts.
8
Display, right > see 3.5 chapter
V --------- welding voltage
9
Excess temperature signal light / Welding torch cooling failure
For error messages > see 5 chapter

Intended use
Welding data display
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Item
Symbol
Description 0
10
Coolant fault signal light
Indicates flow fault or low coolant level.
11
Second signal light
The displayed value is displayed in seconds.
12
JOB number display (welding task) > see 4.2.1 chapter
13
Status display signal light (Hold)
Display of mean values across the entire welding process.
14
Percent signal light
The displayed value is displayed in percent.
15
Material thickness unit signal light
mm-------Parameter value is displayed in millimeters.
inch ------Parameter value is displayed in inches.
Switching between metric or imperial system via special parameters
"P29" > see 4.4 chapter.
16
Display, left
Welding current, material thickness, wire speed, hold values

Intended use
Welding data display
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3.5 Welding data display
To the left of the parameter displays, there is the parameter selection push-button. It is used to select the
welding parameters to be displayed and their values.
Each time one the button is clicked, the display proceeds to the next parameter (signal lights indicate the
selection). After reaching the last parameter, the system is restarted with the first one.
Figure 3-4
MIG/MAG
Parameter
Nominal values [1]
Actual values [2]
Hold values [3]
Welding current
Material thickness
Wire feed speed
Welding voltage
MMA
Parameter
Nominal values [1]
Actual values [2]
Hold values [3]
Welding current
Welding voltage
When settings are changed (e.g. wire feed speed) the display immediately switches to the nominal value
setting.
[1] Nominal values (before welding)
[2] Actual values (during welding)
[3] Hold values (after welding, display of mean values for entire welding process)
3.6 Operating the machine control
3.6.1 Main screen
The machine control switches to the main screen after it has been turned on or a setting has been
completed. This means that the previously selected settings (indicated by signal lights where applicable)
are adopted and that the nominal value for the current (A) is shown in the left-hand welding data display.
The right-hand display shows the nominal value for the welding voltage (V). The control always switches
back to the main screen after 4 sec.
3.6.2 Welding power setting
The welding power is adjusted with the welding power rotary knob (click wheel). You can also adjust the
parameters in the operation sequence or settings in the different machine menus.
3.6.3 Setting advanced welding parameters (Expert menu)
The Expert menu contains functions and parameters which cannot be set directly in the machine control
or which do not need to be et on a regular basis. The number and display of these parameters depends
on the previously selected welding procedure or the functions. To select them hold the welding power
click wheel (> 2 s). Select the required parameter/menu item by turning (navigating) and pressing the
click wheel.

Intended use
Operating the machine control
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3.6.4 Changing basic settings (machine configuration menu)
The basic welding system functions can be adjusted in the machine configuration menu. Only
experienced users should change the settings > see 4.5 chapter.
3.6.5 Lock function
The lock function protects against accidental adjustment of the device settings.
The user can switch the lock function on or off by pressing the button for a long time from each machine
control or accessory component with the symbol .

Functional characteristics
Operating the machine control
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4 Functional characteristics
4.1.1 Shielding gas volume settings
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!
•Slowly open the gas cylinder valve.
•Open the pressure regulator.
•Switch on the power source at the main switch.
•Trigger gas test > see 4.1.1.1 chapter function (welding voltage and wire feed motor remain switched
off –no accidental arc ignition).
•Set the relevant gas quantity for the application on the pressure regulator.
Setting instructions
Welding process
Recommended shielding gas quantity
MAG welding
Wire diameter x 11.5 = l/min
MIG brazing
Wire diameter x 11.5 = l/min
MIG welding (aluminium)
Wire diameter x 13.5 = l/min (100 % argon)
TIG
Gas nozzle diameter in mm corresponds to l/min gas throughput
Helium-rich gas mixtures require a higher gas volume!
The table below can be used to correct the gas volume calculated where necessary:
Shielding gas
Factor
75% Ar/25% He
1.14
50% Ar/50% He
1.35
25% Ar/75% He
1.75
100% He
3.16
4.1.1.1 Gas test
The operating elements are installed under the protective cap of wire feed mechanism.
25s
0
Figure 4-1
4.1.1.2 Purge hose package
The operating elements are installed under the protective cap of wire feed mechanism.
5s
0
300s
Figure 4-2

Functional characteristics
Operating the machine control
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4.1.1.3 Wire thread
The wire inching function is used for potential- and gas-free inching of the wire electrode after the wire
spool change. By pressing and holding the wire inching button for a long time, the wire inching speed
increases in a ramp function (special parameter P1 > see 4.4.1.1 chapter) from 1 m/min to the set
maximum value. The maximum value is set by simultaneously pressing the wire inching button and
turning the left click wheel.
The operating elements are installed under the protective cap of wire feed mechanism.
Figure 4-3
4.1.2 Wire return
The wire return function is used to retract the wire electrode without tension and protection gas. By
simultaneously pressing and holding the wire inching and gas test buttons, the wire return speed
increases in a ramp function (special parameter P1 > see 4.4.1.1 chapter) from 1 m/min to the set
maximum value. The maximum value is set by simultaneously pressing the wire inching button and
turning the left click wheel.
During the process, the wire spool must be turned by hand clockwise to wind up the wire electrode again.
The operating elements are installed under the protective cap of wire feed mechanism.
+
Figure 4-4

Functional characteristics
MIG/MAG welding
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4.2 MIG/MAG welding
4.2.1 Welding task selection
The following steps have to be carried out to select the welding job:
•Select basic parameters (material type, wire diameter and shielding gas type) and welding procedures
(select and enter JOB number by means of JOB-List > see 6.1 chapter).
•Select operating and welding type
•Adjust welding power
•Correct arc length and dynamics if necessary
4.2.1.1 Basic welding parameters
The user must first determine the basic parameters (material type, wire diameter and shielding gas type)
of the welding system. These basic parameters are then compared with the welding job list (JOB-LIST).
The combination of the basic parameters gives a JOB number, which must now be entered on the control
unit. This basic setting must be rechecked or adjusted only when changing the wire or gas.
JOB-LIST
Figure 4-5
4.2.1.2 Operating mode
The operating mode determines the process sequence controlled by the welding torch. Detailed
descriptions of the operating modes > see 4.2.5 chapter.
Figure 4-6

Functional characteristics
MIG/MAG welding
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4.2.2 Welding type
Different forms of MIG/MAG processes are collectively referred to as welding type.
Standard (welding with standard arc)
Depending on the set combination of wire feed speed and arc voltage, the arc types short arc, transitional
arc or spray arc can be used for welding.
Pulse (welding with pulsed arc)
A selective change in the welding current generates current pulses in the arc, which lead to a 1 drop per
pulse of material transfer. The result is an almost spatter-free process, suitable for welding of all
materials, in particular high-alloy CrNi steels or aluminium.
Figure 4-7
4.2.2.1 Welding power (operating point)
The welding power is adjusted according to the principle of one-knob operation. The user can set their
operating point optionally as wire feed speed, welding current or material thickness. The optimum welding
voltage for the operating point is calculated and set by the welding machine. If necessary, the user can
correct this welding voltage > see 4.2.2.3 chapter.
Figure 4-8
4.2.2.2 Accessory components for operating point setting
The operating point can be set at various accessory components as well, such as remote control, special
welding torches or robot and industrial bus interfaces (optional interface for automated welding required,
not available for all machines of this series).
See the operating instructions for the machine in question for a more detailed description of the individual
machines and their functions.

Functional characteristics
MIG/MAG welding
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4.2.2.3 Arc length
When required, the arc length (welding voltage) can be adjusted for the welding task in hand by +/–9.9 V.
Figure 4-9
4.2.2.4 Arc dynamics (choke effect)
This function can be used to adjust the arc between a narrow, hard arc with deep penetration (positive
values) and a wide and soft arc (negative values). In addition, the selected settings are displayed with
signal lights below the rotary knobs.
Figure 4-10

Functional characteristics
MIG/MAG welding
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4.2.3 Expert menu (MIG/MAG)
The Expert menu has adjustable parameters stored that don’t require regular setting. The number of
parameters shown may be limited, e.g. if a function is deactivated.
A
B
A
B
A
A
A
A
A
A
B
B
B
B
B
B
Figure 4-11
Display
Setting/selection
Ignition current
Setting range in percent: depending on main current
Setting range, absolute: Imin to Imax.
Correction of arc length in start program PSTART
Slope time of start program PSTART to main program PA
Slope time of main program PA to end program PEND
End-crater current
Setting range in percent: depending on main current
Setting range, absolute: Imin to Imax.
Correction of arc length in end program PEND
Burn-back time > see 4.2.3.1 chapter
•-----------Increase value > increase wire burn-back
•-----------Decrease value > decrease wire burn-back

Functional characteristics
MIG/MAG welding
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4.2.3.1 Burn-back
The wire burn-back parameter prevents the sticking of the wire electrode in the weld pool or at the contact
tip at the end of the welding process. The value is optimally preset for a variety of applications (but can be
adjusted if necessary). The adjustable value stands for the time until the power source switches off the
welding current after the welding process has been stopped.
Welding wire behaviour
Setting instructions
Wire electrode is sticking in the weld pool.
Increase value
Wire electrode is sticking on the contact tip or large ball
formation on the wire electrode
Reduce value
4.2.4 Program sequence
Certain materials require special functions for reliable and high-quality welding. In this case, the special
latched mode is used with the following programs:
•Start program PSTART (avoidance of cold welds at start of seam)
•Main program PA(continuous welding)
•End program PEND)(avoidance of end-craters by targeted heat reduction)
The programs contain parameters such as wire feed speed (operating point), correction of arc length,
slope times, program duration, etc.
Figure 4-12
4.2.5 Operating modes (functional sequences)
4.2.5.1 Explanation of signs and functions
Symbol
Meaning
Press torch trigger
Release torch trigger
Tap torch trigger (briefly press and release)
Shielding gas is flowing
I
Welding power
Wire electrode is being fed
Wire creep
Wire burn-back
Gas pre-flow