EWM LP-XQ User manual

Operating instructions
EN
Control
LP-XQ (M3.7X-J)
099-00LPXQ-EW501
Observe additional system documents!
13.03.2018

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.......................................................................................................................................7
2.1 Notes on the use of these operating instructions ..........................................................................7
2.2 Explanation of icons.......................................................................................................................8
2.3 Part of the complete documentation..............................................................................................9
3Intended use.........................................................................................................................................10
3.1 Use and operation solely with the following machines................................................................10
3.2 Documents which also apply.......................................................................................................10
3.3 Software version..........................................................................................................................10
4Machine control –Operating elements..............................................................................................11
4.1 Overview of control sections........................................................................................................11
4.1.1 Control section A..........................................................................................................12
4.1.2 Control section B..........................................................................................................14
4.2 Welding data display....................................................................................................................16
4.3 Operating the machine control.....................................................................................................17
4.3.1 Main screen..................................................................................................................17
4.3.2 Welding power setting..................................................................................................17
4.3.3 Changing basic settings (machine configuration menu) ..............................................17
4.3.4 Lock function ................................................................................................................17
5Functional characteristics...................................................................................................................18
5.1 Shielding gas volume settings.....................................................................................................18
5.1.1 Gas test........................................................................................................................18
5.1.2 Purge hose package.....................................................................................................18
5.2 Wire thread ..................................................................................................................................19
5.3 Wire return...................................................................................................................................19
5.4 MIG/MAG welding........................................................................................................................20
5.4.1 Welding task selection..................................................................................................20
5.4.1.1 Basic welding parameters.............................................................................20
5.4.1.2 Welding procedure........................................................................................20
5.4.1.3 Operating mode ............................................................................................21
5.4.1.4 Welding type .................................................................................................21
5.4.1.5 Welding power (operating point)...................................................................22
5.4.1.6 Accessory components for operating point setting.......................................22
5.4.1.7 Arc length......................................................................................................22
5.4.1.8 Arc dynamics (choke effect)..........................................................................23
5.4.2 Programs (PA1-15) ......................................................................................................23
5.4.2.1 Selection and adjustment..............................................................................23
5.4.3 Program sequence.......................................................................................................25
5.4.4 Operating modes (functional sequences) ....................................................................26
5.4.4.1 Explanation of signs and functions ...............................................................26
5.4.4.2 Automatic cut-out..........................................................................................26
5.4.5 forceArc / forceArc puls................................................................................................33
5.4.6 wiredArc........................................................................................................................34
5.4.7 rootArc/rootArc puls......................................................................................................34
5.4.8 coldArc / coldArc puls...................................................................................................35
5.4.9 Standard MIG/MAG torch.............................................................................................35
5.4.10 MIG/MAG special-torches............................................................................................35
5.4.10.1 Program and up/down operation...................................................................35
5.4.10.2 Switching between Push/Pull and intermediate drive...................................36
5.5 TIG welding..................................................................................................................................36
5.5.1 Welding task selection..................................................................................................36
5.5.1.1 Welding current setting .................................................................................36
5.5.2 TIG arc ignition.............................................................................................................37
5.5.2.1 Liftarc ............................................................................................................37
5.5.3 Operating modes (functional sequences) ....................................................................38
5.5.3.1 Explanation of signs and functions ...............................................................38
5.5.3.2 Automatic cut-out..........................................................................................38
5.6 MMA welding ...............................................................................................................................41

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5.6.1 Welding task selection..................................................................................................41
5.6.1.1 Welding current setting..................................................................................42
5.6.2 Arcforce.........................................................................................................................42
5.6.3 Hotstart .........................................................................................................................42
5.6.4 Antistick.........................................................................................................................42
5.7 Options (additional components).................................................................................................43
5.7.1 Electronic gas flow control (OW DGC).........................................................................43
5.7.2 Wire reserve sensor (OW WRS) ..................................................................................43
5.7.3 Wire spool heater (OW WHS) ......................................................................................43
5.8 Access control..............................................................................................................................43
5.9 Voltage reducing device...............................................................................................................43
5.10 Special parameters (advanced settings)......................................................................................43
5.10.1 Selecting, changing and saving parameters.................................................................44
5.10.1.1 Ramp time for wire inching (P1)....................................................................46
5.10.1.2 Program "0", releasing the program block (P2).............................................47
5.10.1.3 Display mode for Up/Down welding torch with one-digit 7-segment
display (P3) ...................................................................................................47
5.10.1.4 Program limit (P4) .........................................................................................47
5.10.1.5 Special cycle in the operating modes special latched and non-latched
(P5)................................................................................................................47
5.10.1.6 Correction operation, threshold value setting (P7)........................................48
5.10.1.7 Switching programs with the standard torch trigger (P8)..............................49
5.10.1.8 Latched/special-latched tap start (P9)...........................................................50
5.10.1.9 "Single or dual operation" (P10) setting........................................................50
5.10.1.10Latched special tapping time setting (P11)...................................................50
5.10.1.11JOB list switching (P12) ................................................................................51
5.10.1.12Lower and upper limits of the remote JOB changeover process (P13,
P14)...............................................................................................................51
5.10.1.13Hold function (P15)........................................................................................51
5.10.1.14Block JOB mode (P16)..................................................................................52
5.10.1.15Selecting programs with the standard torch trigger (P17).............................52
5.10.1.16Mean value display for superPuls (P19) .......................................................52
5.10.1.17Predefined execution of the pulsed arc welding process in the PA
program (P20)...............................................................................................53
5.10.1.18Predefined absolute value for relative programs (P21).................................53
5.10.1.19Electronic gas flow control, type (P22)..........................................................53
5.10.1.20Program settings for relative programs (P23)...............................................53
5.10.1.21Correction or nominal voltage display (P24).................................................53
5.10.1.22JOB selection in Expert mode (P25).............................................................53
5.10.1.23Nominal value wire heater (P26)...................................................................53
5.10.1.24Mode switching at welding start (P27) ..........................................................53
5.10.1.25Error threshold electronic gas flow control (P28)..........................................53
5.10.1.26Units system (P29)........................................................................................53
5.10.1.27Selection option –Program sequence with welding power rotary knob
(P30)..............................................................................................................53
5.10.2 Reset to factory settings...............................................................................................54
5.11 Machine configuration menu........................................................................................................54
5.11.1 Selecting, changing and saving parameters.................................................................54
5.11.2 Aligning the cable resistance........................................................................................56
5.11.3 Power-saving mode (Standby).....................................................................................57
6Rectifying faults....................................................................................................................................58
6.1 Display machine control software version....................................................................................58
6.2 Error messages (power source)...................................................................................................58
6.3 Warnings......................................................................................................................................60
6.4 Resetting JOBs (welding tasks) to the factory settings................................................................61
6.4.1 Resetting a single JOB.................................................................................................61
6.4.2 Resetting all JOBs........................................................................................................61
7Appendix A............................................................................................................................................62
7.1 JOB-List........................................................................................................................................62

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8Appendix B ...........................................................................................................................................69
8.1 Parameter overview –setting ranges..........................................................................................69
8.1.1 MIG/MAG welding ........................................................................................................69
8.1.2 MMA welding................................................................................................................69
9Appendix C ...........................................................................................................................................70
9.1 Searching for a dealer .................................................................................................................70

Contents
Notes on the use of these operating instructions
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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.

For your safety
Explanation of icons
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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
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

For your safety
Part of the complete documentation
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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
The illustration shows a general example of a welding system.
Item
Documentation
A.1
Wire feeder
A.2
Remote adjuster
A.3
Controller
A.4
Power source
A.5
Welding torch
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
Diese Beschreibung darf ausschließlich auf Geräte mit Gerätesteuerung M3.7X-J angewendet
werden.
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 5.11 chapter.

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

Machine control –Operating elements
Overview of control sections
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4.1.1 Control section A
Figure 4-2
Item
Symbol
Description 0
1
Welding task push-button (JOB)
•---------- Pressing the push-button briefly: Fast switching of the available welding
procedures in the selected basic parameters (material/wire/gas).
•---------- Pressing the push-button longer: Select the welding task (JOB) from the
welding task list (JOB-LIST) > see 5.4.1 chapter. 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 4.3.2 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 modes push-button (functional sequences) > see 5.4.4 chapter
-------- Non-latched
------ Latched
-------- Signal light turns green: Special non-latched
---- Signal light turns red: MIG spots
-------- Special latched
4
Push-button, welding type
•---------- Standard: Welding with standard arc
•---------- Pulses: Welding with pulsed arc
•---------- Positionweld: Positional welding
5
Display of arc dynamics
The height and orientation of the set arc dynamics are displayed.

Machine control –Operating elements
Overview of control sections
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Item
Symbol
Description 0
6
Correction of arc length click wheel
•-----------Setting the arc length correction > see 5.4.1.7 chapter
•-----------Setting arc dynamics > see 5.4.1.8 chapter
•-----------Setting various parameters values depending on the preselection.
The white signal lights (LED) around the rotary knob light up when setting is possible.
7
Push-button shielding gas supply > see 5.1 chapter
•-----------Gas test
•-----------Purge hose package
8
Wire return > see 5.3 chapter
Potential and gas-free return of the wire electrode.
9
Wire inching push-button
Potential and gas-free inching of the wire electrode > see 5.2 chapter.
10
End
Signal light wire reserve sensor (ex works option) > see 5.7.2 chapter
Lights up when the welding wire is less than approx. 10% residual quantity.

Machine control –Operating elements
Overview of control sections
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4.1.2 Control section B
Figure 4-3
Item
Symbol
Description 0
1
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 4.3.4 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 5.10 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
Signal light program
Display of the current program number in the welding data display.
8
Correction voltage arc length signal light
Display of correction voltage arc length in volts.
9
Welding power signal light
Display of welding power in kilowatts.
10
Electronic gas flow control signal light OW DGC > see 5.7.1 chapter
Shows the gas flow rate in the device display.
11
Display push-button, right
Primary display of arc length correction and other parameters and their values.

Machine control –Operating elements
Overview of control sections
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Item
Symbol
Description 0
12
Motor current signal light
During wire inching, the current motor current (wire feed mechanism) is displayed in
amperes.
13
Display right - Primary display of welding voltage
This display shows the welding voltage, arc length correction, programs or welding
power (switching by Display right push-button). Furthermore, dynamics and, depending
on the preselection, various welding parameter valuesare displayed. Parameter times
or hold values > see 4.2 chapter.
14
Excess temperature signal light / Welding torch cooling failure
For error messages > see 6 chapter
15
Coolant fault signal light
Indicates flow fault or low coolant level.
16
Second signal light
The displayed value is displayed in seconds.
17
VRD
Voltage reduction device (VRD) signal light > see 5.9 chapter
18
JOB number display (welding task) > see 5.4.1 chapter
19
Status display signal light (Hold)
Display of mean values across the entire welding process.
20
Percent signal light
The displayed value is displayed in percent.
21
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 5.10 chapter.
22
Display left - Primary display of welding power
This display shows the welding power either as wire feed speed, welding current or
material thickness (switching by display push-button on the left). Furthermore,
depending on the preselection, various welding parameter valuesare displayed.
Parameter times or hold values > see 4.2 chapter.

Machine control –Operating elements
Welding data display
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4.2 Welding data display
On the left and right of the parameter displays there are push-buttons for the selection of parameters.
They are 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 4-4
MIG/MAG
Parameter
Nominal values [1]
Actual values [2]
Hold values [3]
Welding current
Material thickness
Wire feed speed
Welding voltage
Welding power
Motor current
Shielding gas
TIG
Parameter
Nominal values [1]
Actual values [2]
Hold values [3]
Welding current
Welding voltage
Welding power
Shielding gas
MMA
Parameter
Nominal values [1]
Actual values [2]
Hold values [3]
Welding current
Welding voltage
Welding power
When settings are changed (e.g. wire feed speed) the display immediately switches to nominal value
setting.
[1] Nominal values (before welding)
[2] Actual values (during welding)
[3] Hold values (after welding, display of mean values across entire welding process)

Machine control –Operating elements
Operating the machine control
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4.3 Operating the machine control
4.3.1 Main screen
The machine control switches to the main screen after it has been turned on or a setting has been
completed. This means that the previously selected settings (indicated by signal lights where applicable)
and the nominal value for the current (A) are displayed in the left-hand welding data display. Depending
on the selection, the right-hand display shows the welding voltage (V) nominal value or the welding power
(kW) actual value. The control always switches back to the main screen after 4 sec..
4.3.2 Welding power setting
The welding power is 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.
4.3.3 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 5.11 chapter.
4.3.4 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
Shielding gas volume settings
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5 Functional characteristics
5.1 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 5.1.1 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
5.1.1 Gas test
25s
0
Figure 5-1
5.1.2 Purge hose package
5s
0
300s
Figure 5-2

Functional characteristics
Wire thread
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5.2 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 5.10.1.1 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.
Figure 5-3
5.3 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 5.10.1.1 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.
+
Figure 5-4

Functional characteristics
MIG/MAG welding
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5.4 MIG/MAG welding
5.4.1 Welding task selection
Zur Schweißaufgabenanwahl sind folgende Schritte durchzuführen:
•Grundparameter (Materialart, Drahtdurchmesser und Schutzgasart) und Schweißverfahren wählen
(JOB-Nummer anhand JOB-List > see 7.1 chapter wählen und eingeben).
•Betriebs- und Schweißart wählen
•Schweißleistung einstellen
•Lichtbogenlänge und Dynamik ggf. korrigieren
5.4.1.1 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 5-5
5.4.1.2 Welding procedure
After setting the basic parameters you can switch between the welding procedures MIG/MAG, forceArc,
wiredArc, rootArc und coldArc (if there is a corresponding combination of the basic parameters). The
process change will also change the JOB number, but the basic parameters remain unchanged.
Figure 5-6