EWM PM 301 W User manual

Operating instructions
EN
welding torch
PM 301 W
PM 451 W
PM 551 W
PM 551 W Alu
099-700003-EW501
Observe additional system documents!
14.09.2020

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 sa-
fety 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 re-
pair the machine.
• Technical changes due to further development in machine technology may lead to a dif-
fering 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 ac-
cepted 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: [e-mail]
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 using these operating instructions
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1 Contents
1Contents .......................................................................................................................................... 3
2For your safety ............................................................................................................................... 5
2.1 Notes on using these operating instructions .......................................................................... 5
2.2 Explanation of icons ............................................................................................................... 6
2.2.1 Part of the complete documentation ....................................................................... 7
3Intended use ................................................................................................................................... 8
3.1 Applications ............................................................................................................................ 8
3.2 Documents which also apply ................................................................................................. 9
3.2.1 Warranty ................................................................................................................. 9
3.2.2 Declaration of Conformity ....................................................................................... 9
3.2.3 Service documents (spare parts) ........................................................................... 9
4Product description – quick reference ...................................................................................... 10
4.1 Product variants ................................................................................................................... 10
4.2 Standard welding torch ........................................................................................................ 11
4.3 Function torch ...................................................................................................................... 12
4.3.1 Euro torch connector without control cable .......................................................... 13
4.3.2 Euro torch connector with control cable ............................................................... 13
5Design and function ..................................................................................................................... 14
5.1 Scope of delivery ................................................................................................................. 14
5.2 Transport and installation .................................................................................................... 15
5.2.1 Ambient conditions ............................................................................................... 15
5.2.1.1 In operation ........................................................................................... 15
5.2.1.2 Transport and storage ........................................................................... 15
5.2.2 Welding torch cooling system ............................................................................... 15
5.2.2.1 Permitted torch coolant ......................................................................... 15
5.2.2.2 Maximal hose package length .............................................................. 16
5.2.3 Settings ................................................................................................................. 16
5.2.4 Operating elements in the machine ...................................................................... 17
5.2.5 Operating elements 2 for up/down welding torch ................................................. 17
5.2.6 Operating elements for RD2 welding torch .......................................................... 18
5.2.7 Welding data display ............................................................................................ 19
5.2.8 Operating elements for RD3 welding torch .......................................................... 19
5.2.9 Welding data display ............................................................................................ 20
5.2.9.1 Programs, setting operating points ....................................................... 21
5.2.9.2 Component management on the welding torch .................................... 23
5.2.10 LED lighting .......................................................................................................... 24
5.3 Configure welding torch ....................................................................................................... 24
5.3.1 Turning the torch neck .......................................................................................... 25
5.3.2 Changing the torch neck....................................................................................... 25
5.4 Equipment recommendations .............................................................................................. 27
5.4.1 acArc puls XQ ....................................................................................................... 29
5.5 Adapting the Euro torch connection on the device .............................................................. 29
5.5.1 Liner ...................................................................................................................... 29
5.5.2 Replace steel liner ................................................................................................ 29
5.6 Assemble the wire guide ...................................................................................................... 29
5.6.1 Liner / combined liner ........................................................................................... 30
5.6.2 Guide spiral .......................................................................................................... 33
6Maintenance, care and disposal ................................................................................................. 36
6.1 General ................................................................................................................................ 36
6.2 Maintenance work, intervals ................................................................................................ 37
6.2.1 Daily maintenance tasks....................................................................................... 37
6.2.2 Monthly maintenance tasks .................................................................................. 37
6.3 Maintenance work ................................................................................................................ 37
6.4 Disposing of equipment ....................................................................................................... 38
7Rectifying faults ........................................................................................................................... 39
7.1 Checklist for rectifying faults ................................................................................................ 39
7.2 Vent coolant circuit ............................................................................................................... 40

Contents
Notes on using these operating instructions
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8Technical data ............................................................................................................................... 41
8.1 PM 301 / 451 / 551 W .......................................................................................................... 41
9Accessories .................................................................................................................................. 42
9.1 General accessories ............................................................................................................ 42
10 Replaceable parts ......................................................................................................................... 43
10.1 PM 301 W............................................................................................................................. 43
10.2 PM 451 W............................................................................................................................. 44
10.3 PM 551 W............................................................................................................................. 46
11 Service documents....................................................................................................................... 49
11.1 Circuit diagrams ................................................................................................................... 49
11.1.1 PM 301 - 551 W .................................................................................................... 49
11.1.2 PM 301 - 551 W LED ............................................................................................ 50
11.1.3 PM 301 - 551 W TT .............................................................................................. 51
11.1.4 PM 301 - 551 W TT LED ...................................................................................... 52
11.1.5 PM 301 - 551 W 2U/D ........................................................................................... 53
11.1.6 PM 301 - 551 W 2U/DX ........................................................................................ 54
11.1.7 PM 301 - 551 W RD2 X ........................................................................................ 55
11.1.8 PM 301 - 551 W RD3 X ........................................................................................ 56
12 Appendix ....................................................................................................................................... 57
12.1 Display, explanation of symbols ........................................................................................... 57
12.2 Searching for a dealer .......................................................................................................... 59

For your safety
Notes on using these operating instructions
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2 For your safety
2.1 Notes on using 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 sym-
bol.
• 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 warn-
ing 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 u-
ser 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 / ac-
tuate)
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
Explanation of icons
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2.2.1 Part of the complete documentation
This document is 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
Applications
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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 stand-
ards applicable for use in industry and trade. It may only be used for the welding proce-
dures 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 Applications
Welding torch of multi-process welding machines for arc welding covering the following welding proce-
dures:
Machine series
Main procedure for MIG/MAG welding
Standard arc
Pulsed arc
MIG/MAG XQ
forceArc XQ
rootArc XQ
coldArc XQ
MIG/MAG pulse XQ
forceArc puls XQ
rootArc puls XQ
coldArc puls XQ
acArc puls XQ
PM 301 - 551 W
PM 551 W Alu

Intended use
Documents which also apply
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3.2 Documents which also apply
3.2.1 Warranty
For more information refer to the "Warranty registration" brochure supplied and our information regarding
warranty, maintenance and testing at www.ewm-group.com!
3.2.2 Declaration of Conformity
This product corresponds in its design and construction to the EU directives listed in the decla-
ration. The product comes with a relevant declaration of conformity in the original.
The manufacturer recommends carrying out the safety inspection according to national and in-
ternational standards and guidelines every 12 months.
3.2.3 Service documents (spare parts)
WARNING
Do not carry out any unauthorised repairs or modifications!
To avoid injury and equipment damage, the unit must only be repaired or modified by
specialist, skilled persons!
The warranty becomes null and void in the event of unauthorised interference.
• Appoint only skilled persons for repair work (trained service personnel)!
Spare parts can be obtained from the relevant authorised dealer.

Product description – quick reference
Product variants
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4 Product description – quick reference
4.1 Product variants
Version
Functions
Performance class
PM
Professional MIG
PM221/301/401G,
PM301/451/551W
W
Water-cooled
Switching the welding process on and off with torch trigger.
PM301/451/551W
G
Gas-cooled
Switching the welding process on and off with torch trigger.
PM221/301/401G
S
Short torch neck
PM451/551W
L
Extended torch neck
For welding operating points which are difficult to reach.
High duty cycle.
PM451/551W
C
Interchangeable torch neck
Torch neck can be continuously fixed through 360°.
PM221/301G
PM301/451W
2U/D
2 up/down welding torch
The welding power (welding current / wire feed speed) and
the voltage correction or the program number can be changed
on the welding torch.
PM221/301/401G,
PM301/451/551W
RD2
Remote display-2-welding torch
The welding power (welding current / wire feed speed) and
the voltage correction or the program number can be changed
on the welding torch. Values and changes are shown on the
welding torch display.
PM221/301/401G,
PM301/451/551W
RD3
Remote display-3-welding torch
The welding power (welding current / wire feed speed),
welding voltage correction, program number, dynamics and
welding procedure can be changed from the welding torch.
Values, changes, faults and error messages are displayed on
the welding torch display.
PM221/301/401G,
PM301/451/551W
X
X Technology
Welding torch with X technology – function torch without sepa-
rate control cable
PM221/301/401G,
PM301/451/551W
Alu
Aluminium AC welding
Equipped with contact tip (forced contact) and combined liner.
PM551W

Product description – quick reference
Standard welding torch
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4.2 Standard welding torch
Figure 4-1
Item
Symbol
Description 0
1
Gas nozzle
2
Grip plate
3
Ball joint
4
Anti-kink device
5
Lock ring
6
Torch trigger
7
Torch neck 45°

Product description – quick reference
Function torch
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4.3 Function torch
Figure 4-2
Item
Symbol
Description 0
1
Gas nozzle
2
Torch neck 45°
3
Operating elements
4
Grip plate
5
Ball joint
6
Anti-kink device
7
Lock ring
8
Torch trigger
9
LED lighting

Product description – quick reference
Function torch
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4.3.1 Euro torch connector without control cable
Figure 4-3
Item
Symbol
Description 0
1
Anti-kink spring
2
Euro central connection
Welding current, shielding gas and torch trigger included
3
Quick connect coupling, blue (coolant supply)
4
Quick connect coupling, red (coolant return)
4.3.2 Euro torch connector with control cable
Figure 4-4
Item
Symbol
Description 0
1
Anti-kink spring
2
Euro central connection
3
Control cable plug
Only for control variant 2U/D.
4
Quick connect coupling, blue (coolant supply)
5
Quick connect coupling, red (coolant return)

Design and function
Scope of delivery
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5 Design and function
WARNING
Risk of injury from electrical voltage!
Contact with live parts, e.g. power connections, can be fatal!
• Observe the safety information on the first pages of the operating instructions!
• Commissioning must be carried out by persons who are specifically trained in handling
power sources!
• Connect connection or power cables while the machine is switched off!
CAUTION
Risk of injury due to moving parts!
The wire feeders are equipped with moving parts, which can trap hands, hair, clothing
or tools and thus injure persons!
• Do not reach into rotating or moving parts or drive components!
• Keep casing covers or protective caps closed during operation!
Risk of injury due to welding wire escaping in an unpredictable manner!
Welding wire can be conveyed at very high speeds and, if conveyed incorrectly, may es-
cape in an uncontrolled manner and injure persons!
• Before mains connection, set up the complete wire guide system from the wire spool to the
welding torch!
• Check wire guide at regular intervals!
• Keep all casing covers or protective caps closed during operation!
Read and observe the documentation to all system and accessory components!
5.1 Scope of delivery
The delivery is checked and packaged carefully before dispatch, however it is not possible to exclude the
possibility of damage during transit.
Receiving inspection
• Check that the delivery is complete using the delivery note!
In the event of damage to the packaging
• Check the delivery for damage (visual inspection)!
In the event of complaints
If the delivery has been damaged during transport:
• Please contact the last haulier immediately!
• Keep the packaging (for possible checking by the haulier or for the return shipment).
Packaging for returns
If possible, please use the original packaging and the original packaging material. If you have any queries
on packaging and protection during transport, please contact your supplier.

Design and function
Transport and installation
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5.2 Transport and installation
CAUTION
Risk of accidents due to supply lines!
During transport, attached supply lines (mains leads, control cables, etc.) can cause
risks, e.g. by causing connected machines to tip over and injure persons!
• Disconnect all supply lines before transport!
5.2.1 Ambient conditions
Equipment damage due to contamination!
Unusually high amounts of dust, acids, corrosive gases or substances can damage the machine
(observe maintenance intervals).
• Avoid large amounts of smoke, steam, oily fumes, grinding dust and corrosive ambient air!
5.2.1.1 In operation
Temperature range of the ambient air:
• -10 °C to +40 °C (-13 F to 104 F)[1]
Relative humidity:
• up to 50 % at 40 °C (104 F)
• up to 90 % at 20 °C (68 F)
5.2.1.2 Transport and storage
Storage in a closed area, temperature range of the ambient air:
• -25 °C to +55 °C (-13 F to 131 F)[1]
Relative humidity
• up to 90 % at 20 °C (68 F)
[1] Ambient temperature dependent on coolant! Observe the coolant temperature range of the torch coo-
ling
5.2.2 Welding torch cooling system
Insufficient frost protection in the welding torch coolant.
Depending on the ambient conditions, different liquids are used to cool the welding torch. Coo-
lant with frost protection (KF 37E or KF 23E) must be checked at regular intervals for sufficient
frost protection to prevent damage to the machine or the accessory components.
• The coolant must be checked with the frost protection tester TYP 1 for sufficient frost protec-
tion.
• Replace coolant with insufficient frost protection if necessary.
Coolant mixtures!
Mixtures with other liquids or the use of unsuitable coolants result in material damage and ren-
ders the manufacturer's warranty void!
• Only use the coolant described in this manual (overview of coolants).
• Do not mix different coolants.
• When changing the coolant, the entire volume of liquid must be changed.
Dispose of the coolant in accordance with local regulations and the material safety data sheets.
5.2.2.1 Permitted torch coolant
Coolant
Temperature range
KF 23E (Standard)
-10 °C to +40 °C (14 °F to +104 °F)
KF 37E
-20 °C to +30 °C (-4 °F to +86 °F)

Design and function
Transport and installation
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5.2.2.2 Maximal hose package length
All information relates to the total hose package length of the complete welding system and presents
exemplary configurations (of components of the EWM product portfolio with standard lengths). A straight
kink-free installation is to be ensured, taking into account the max. delivery height.
Pump: Pmax = 3,5 bar (0.35 MPa)
---------------------------------------------------------------------------------------------------------------------- ►
Power source
Hose package
Wire feeder
miniDrive
Welding torch
Max.
Compact
(25 m / 82 ft.)
(5 m / 16 ft.)
30 m
98 ft.
(20 m / 65 ft.)
(5 m / 16 ft.)
Decompact
(25 m / 82 ft.)
(5 m / 16 ft.)
(15 m / 49 ft.)
(10 m / 32 ft.)
(5 m / 16 ft.)
Pump: Pmax = 4.5 bar (0.45 MPa)
---------------------------------------------------------------------------------------------------------------------- ►
Power source
Hose package
Wire feeder
miniDrive
Welding torch
Max.
Compact
(25 m / 82 ft.)
(5 m / 16 ft.)
30 m
98 ft.
(30 m / 98 ft.)
(5 m / 16 ft.)
40 m
131 ft.
Decompact
(40 m / 131 ft.)
(5 m / 16 ft.)
45 m
147 ft.
(40 m / 131 ft.)
(25 m / 82 ft.)
(5 m / 16 ft.)
70 m
229 ft.
5.2.3 Settings
After the torch component has been connected, the control elements of the welding machine control are
no longer in operation, other accessories for remote control must not be connected.
Parameter changes are saved immediately and displayed on the welding machine control!
The full functional range of the PM function torch is only available in connection with the device series
Titan XQ and the wire feeder drive XQ.
If the function torch is connected to another EWM device series using Multimatrix, the welding torch swit-
ches to compatibility mode and is restricted in its functions.
Depending on the torch version, the user can change the following welding parameters of the main pro-
grams.
control welding torch
2U/D
RD2
RD3
Program switching
JOB switching
Process switching
Operating mode
Welding method
Wire feed speed
Voltage correction
Dynamics

Design and function
Transport and installation
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5.2.4 Operating elements in the machine
This setting affects the torch types 2U/D, and RD2.
Figure 5-1
• Switch the"Program or up/down mode“ changeover switch at the welding machine to the up/down or
program mode position (see chapter "Design and function").
The 'Program or up/down function' changeover switch may look different on your machine. Use
the operating instructions for your power source to operate the switch.
5.2.5 Operating elements 2 for up/down welding torch
Figure 5-2
Item
Symbol
Description 0
1
"B -" button (program mode)
Decrease JOB number
"B -" button (up/down mode)
Welding voltage correction, decrease value
2
"B +" button (program mode)
Increase JOB number
"B +" button (up/down mode)
Welding voltage correction, increase value
3
"A -" button (Program mode)
Decrease program number
"A -" button (Up/Down mode)
Reduce welding performance (welding current/wire-feed speed)
4
"A +" button (Program mode)
Increase program number
"A +" button (Up/Down mode)
Increase welding performance (welding current/wire-feed speed)

Design and function
Transport and installation
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5.2.6 Operating elements for RD2 welding torch
Figure 5-3
Item
Symbol
Description 0
1
OLED display
Graphical display to show the functions.
2
"B -" button (program mode)
Decrease JOB number
"B -" button (up/down mode)
Welding voltage correction, decrease value
3
"B +" button (program mode)
Increase JOB number
"B +" button (up/down mode)
Welding voltage correction, increase value
4
"A -" button (Program mode)
Decrease program number
"A -" button (Up/Down mode)
Reduce welding performance (welding current/wire-feed speed)
5
"A +" button (Program mode)
Increase program number
"A +" button (Up/Down mode)
Increase welding performance (welding current/wire-feed speed)

Design and function
Transport and installation
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5.2.7 Welding data display
The display shows the currently selected welding parameter and the corresponding parameter value.
When the welding machine is switched on, the display shows the nominal welding current set point set
point set by the control unit.
During the up/down operation, the corresponding parameter value is shown on the display when the para-
meter is changed. If this parameter is not changed for more than approx. 5 s, the display switches back to
the values set by the control unit.
Examples for welding parameters in the welding data display
Welding parameters
Display
Welding current
Wire feed speed
Voltage correction
Programs
JOB number
5.2.8 Operating elements for RD3 welding torch
Figure 5-4
Item
Symbol
Description 0
1
OLED display
Graphical display to show the functions.
2
Parameter selection push-button
Welding parameters are selected one after the other.
3
Parameter selection push-button
Welding parameters are selected one after the other.
4
Push-button “+”
Increase JOB number or parameter value.
5
Push-button “-”
Decrease JOB number or parameter value.

Design and function
Transport and installation
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5.2.9 Welding data display
The display shows the currently selected welding parameter and the corresponding parameter value.
When the welding machine is switched on, the display shows the nominal welding current set point set
point set by the control unit.
During the up/down operation, the corresponding parameter value is shown on the display when the para-
meter is changed. If this parameter is not changed for more than approx. 5 s, the display switches back to
the values set by the control unit.
Examples for welding parameters in the welding data display
Welding parameters
Display
Welding current
Wire feed speed
Welding voltage
Programs
Welding procedure
Dynamics
Fault, error message