+49 2680 181-0. A list of authorised sales partners can be found at www.ewm-group.com. 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.
Contents Notes on the use of these operating instructions Contents 1 Contents ..............................3 2 Safety instructions ..........................6 Notes on the use of these operating instructions ................6 Explanation of icons ........................7 General ............................8 Transport and installation ......................12 2.4.1 Ambient conditions .......................
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Contents Notes on the use of these operating instructions 5.8.5 Welding data display ..................... 41 5.8.5.1 Power-saving mode ..................41 5.8.6 MIG/MAG operating point ..................... 42 5.8.6.1 Selecting the welding parameter display mode ..........42 5.8.6.2 Operating point setting using material thickness .......... 42 5.8.6.3 Arc length correction setting ................
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Wire feed rollers for aluminium wire ................81 10.1.3 Wire feed rollers for cored wire ..................81 10.1.4 Conversion sets ......................82 11 Appendix A ............................83 11.1 JOB-List ............................83 12 Appendix B ............................84 12.1 Overview of EWM branches ......................84 099-005266-EW501 07.05.2014...
Safety instructions Notes on the use of these operating instructions Safety instructions 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. •...
Safety instructions Explanation of icons Explanation of icons Symbol Description Press Do not press Turn Switch Switch off machine Switch on machine ENTER ENTER (enter the menu) ENTER NAVIGATION NAVIGATION (Navigating in the menu) EXIT EXIT (Exit the menu) Time display (example: wait 4s/press) Interruption in the menu display (other setting options possible) Tool not required/do not use Tool required/use...
Safety instructions General General DANGER Electromagnetic fields! The power source may cause electrical or electromagnetic fields to be produced which could affect the correct functioning of electronic equipment such as IT or CNC devices, telecommunication lines, power cables, signal lines and pacemakers. •...
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Safety instructions General WARNING Smoke and gases! Smoke and gases can lead to breathing difficulties and poisoning. In addition, solvent vapour (chlorinated hydrocarbon) may be converted into poisonous phosgene due to the ultraviolet radiation of the arc! • Ensure that there is sufficient fresh air! •...
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Safety instructions General CAUTION Obligations of the operator! The respective national directives and laws must be observed for operation of the machine! • National implementation of the framework directive (89/391/EWG), as well as the associated individual directives. • In particular, directive (89/655/EWG), on the minimum regulations for safety and health protection when staff members use equipment during work.
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Safety instructions General CAUTION EMC Machine Classification In accordance with IEC 60974-10, welding machines are grouped in two electromagnetic compatibility classes (see technical data): Class A machines are not intended for use in residential areas where the power supply comes from the low-voltage public mains network.
Safety instructions Transport and installation Transport and installation WARNING Incorrect handling of shielding gas cylinders! Incorrect handling of shielding gas cylinders can result in serious and even fatal injury. • Observe the instructions from the gas manufacturer and in any relevant regulations concerning the use of compressed air! •...
Safety instructions Transport and installation 2.4.1 Ambient conditions CAUTION Installation site! The machine must not be operated in the open air and must only be set up and operated on a suitable, stable and level base! • The operator must ensure that the ground is non-slip and level, and provide sufficient lighting for the place of work.
Intended use Applications Intended use WARNING Hazards due to improper usage! 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 proper usage and by trained or expert staff! •...
Intended use Documents which also apply Documents which also apply 3.2.1 Warranty NOTE For further information, please see the accompanying supplementary sheets "Machine and Company Data, Maintenance and Testing, Warranty"! 3.2.2 Declaration of Conformity The designated machine conforms to EC Directives and standards in terms of its design and construction: •...
Machine description – quick overview Front view Machine description – quick overview Front view Figure 4-1 099-005266-EW501 07.05.2014...
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Machine description – quick overview Front view Item Symbol Description Transport bar Carrying handle Protective cap Cover for the wire feed mechanism and other operating elements. Depending on the machine series, additional stickers with information on the replacement parts and JOB lists will be located on the inside. Wire spool inspection window Check wire supply Slide latch, lock for the protective cap...
Machine description – quick overview Inside view Inside view Figure 4-3 Item Symbol Description Key button, Automatic cutout Wire feed motor supply voltage fuse (press to reset a triggered fuse) Button, Wire inching For inching the wire electrode when changing the wire spool. The welding wire is inched into the tube package with the current off and without the gas being expelled.
Machine description – quick overview Machine control – Operating elements Machine control – Operating elements Figure 4-4 Item Symbol Description Three-figure LED display Welding parameter display (see also chap. “Welding data display”). Signal light, JOB-List Illuminates upon display or selection of the JOB number Key button, JOB-List Selection of the welding task (JOB) from the JOB list “Collective interference”...
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Machine description – quick overview Machine control – Operating elements Item Symbol Description Gas test / rinse button • Gas test: For setting the shielding gas quantity • Rinse: For rinsing longer hose packages See also "Shielding Gas Supply" chapter Button, Select welding type MIG/MAG standard welding MIG/MAG pulse arc welding...
Design and function Machine control – Operating elements Design and function WARNING Risk of injury from electric shock! Contact with live parts, e.g. welding current sockets, is potentially fatal! • Follow safety instructions on the opening pages of the operating instructions. •...
Design and function Installation CAUTION Damage due to incorrect connection! Accessory components and the power source itself can be damaged by incorrect connection! • Only insert and lock accessory components into the relevant connection socket when the machine is switched off. •...
Design and function Machine cooling Machine cooling To obtain an optimal duty cycle from the power components, the following precautions should be observed: • Ensure that the working area is adequately ventilated. • Do not obstruct the air inlets and outlets of the machine. •...
Design and function Welding torch holder Welding torch holder NOTE The item described in the following is part of the machine´s scope of delivery. Figure 5-1 Item Symbol Description Crossmember of the transport handle Torch holder Fan-type lock washers Fixing screws (x 4) •...
Design and function Notes on the installation of welding current leads Notes on the installation of welding current leads NOTE Incorrectly installed welding current leads can cause faults in the arc (flickering). Lay the workpiece lead and hose package of power sources without HF igniter (MIG/MAG) for as long and as close as possible in parallel.
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Design and function Notes on the installation of welding current leads NOTE Use an individual welding lead to the workpiece for each welding machine! Figure 5-3 NOTE Fully unroll welding current leads, torch hose packages and intermediate hose packages. Avoid loops! Always keep leads as short as possible! Lay any excess cable lengths in meanders.
Design and function Mains connection Mains connection DANGER Hazard caused by improper mains connection! An improper mains connection can cause injuries or damage property! • Only use machine with a plug socket that has a correctly fitted protective conductor. • If a mains plug must be fitted, this may only be carried out by an electrician in accordance with the relevant national provisions or regulations! •...
Design and function Shielding gas supply (shielding gas cylinder for welding machine) Shielding gas supply (shielding gas cylinder for welding machine) 5.7.1 Connection WARNING Incorrect handling of shielding gas cylinders! Incorrect handling of shielding gas cylinders can result in serious and even fatal injury. •...
Design and function Shielding gas supply (shielding gas cylinder for welding machine) 5.7.2 Gas test, rinse hose package • Slowly open the gas cylinder valve. • Open the pressure reducer. • Switch on the power source at the main switch. •...
Design and function MIG/MAG welding MIG/MAG welding 5.8.1 Welding torch and workpiece line connection NOTE Fault with the wire guide! On delivery, the central connector is fitted with a capillary tube for welding torches with spiral guides. Conversion is necessary if a welding torch with a plastic core is used! Welding torch with plastic core: •...
Design and function MIG/MAG welding 5.8.1.1 MIG/MAG standard welding NOTE Choose welding current connection socket according to the signal light for the polarity setting! • Select JOB (see chapter “Function description, selecting MIG/MAG or TIG welding tasks”) • Polarity selection “+” or polarity selection “-” signal lights show the polarity setting. Figure 5-7 Item Symbol Description...
Design and function MIG/MAG welding 5.8.1.2 MIG/MAG cored wire welding NOTE Choose welding current connection socket according to the signal light for the polarity setting! • Select JOB (see chapter “Function description, selecting MIG/MAG or TIG welding tasks”) • Polarity selection “+” or polarity selection “-” signal lights show the polarity setting. Figure 5-8 Item Symbol Description...
Design and function MIG/MAG welding 5.8.2 Wire feed 5.8.2.1 Open the protective flap of the wire feeder CAUTION To perform the following steps, the protective flap of the wire feeder needs to be opened. Make sure to close the protective flap again before starting to work. •...
Design and function MIG/MAG welding 5.8.2.3 Changing the wire feed rollers NOTE Unsatisfactory welding results due to faulty wire feeding! Wire feed rollers must be suitable for the diameter of the wire and the material. • Check the roller label to verify that the rollers are suitable for the wire diameter. Turn or change if necessary! •...
Design and function MIG/MAG welding 5.8.2.4 Inching the wire electrode 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! •...
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Design and function MIG/MAG welding Figure 5-11 Item Symbol Description Adjusting nut Feed roll tensioner Fixing the clamping unit and setting the pressure. Clamping unit Knurled screw Pressure roller Wire feed nipple Guide tube Drive roller Axle • Extend and lay out the torch hose package. •...
Design and function MIG/MAG welding 5.8.2.5 Spool brake setting Figure 5-12 Item Symbol Description Allen screw Securing the wire spool retainer and adjustment of the spool brake • Tighten the Allen screw (8 mm) in the clockwise direction to increase the braking effect. NOTE Tighten the spool brake until the wire spool no longer turns when the wire feed motor stops but without it jamming during operation!
Design and function MIG/MAG welding 5.8.4.1 JOB selection Determine welding task (JOB) Item. Selection Welding process MIG/MAG (solid wire) Material type G3 Si1 (steel) Shielding gas type 80-90% Ar Wire diameter 0,8 mm JOB 6 Set JOB 6 M 1.81 A M P M ate rial VOLT...
Design and function MIG/MAG welding • Select JOB (welding task) by means of the JOB list. The "JOB list" sticker is on the inside of the cover of the wire feed unit. • Set the operating point by means of the panel thickness (see chapter "Setting the MIG/MAG operating point).
Design and function MIG/MAG welding 5.8.5 Welding data display Diagram 5-14 The button for the welding parameter display mode is next to the display. Each time the button is pressed the display changes to the next parameter. After the last parameter is reached the display continues with the first parameter.
Design and function MIG/MAG welding 5.8.6 MIG/MAG operating point 5.8.6.1 Selecting the welding parameter display mode The operating point (welding performance) can be displayed or set as the welding current, material thickness or wire speed. Operating Action Result element Switching the display between: Welding current Welding voltage (correction) Material thickness...
Design and function MIG/MAG welding 5.8.7 Further welding parameters NOTE Validity of the settings. Settings for • Spot time, • Pause time and • Wire feed speed apply for all JOBs. • Choke effect/dynamics, • Gas post-flow time, • Gas pre-flow time and •...
Design and function MIG/MAG welding 5.8.7.3 Spot time NOTE Select the respective operating mode before setting the spot or pause time. Operating Action Result Display element Selecting the parameter to be set Parameter value set The LED indicates the parameter selected. Choke effect/dynamics Gas post-flow time Spot time...
Design and function MIG/MAG welding 5.8.7.5 Burn-back • Preselection: Select a MIG/MAG JOB (see chapter “Selecting MIG/MAG welding tasks”). ENTER NAVIGATION EXIT DY N DY N m /m in A M P Figure 5-15 Display Setting/selection Burn-back correction 0 to 499 of the burn back time specified in the JOB 5.8.7.6 gas pre-flow time •...
Design and function MIG/MAG welding 5.8.8 MIG/MAG functional sequences / operating modes 5.8.9 Explanation of signs and functions Symbol Meaning Press torch trigger Release torch trigger Shielding gas flowing Welding output Wire electrode is being conveyed Wire creep Wire burn-back Gas pre-flows Gas post-flows Non-latched...
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Design and function MIG/MAG welding Non-latched mode Figure 5-17 Step 1 • Press and hold torch trigger. • Shielding gas is expelled (gas pre-flows). • Wire feed motor runs at “creep speed”. • Arc ignites after the wire electrode makes contact with the workpiece; welding current flows. •...
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Design and function MIG/MAG welding Latched mode Figure 5-18 1. cycle • Press and hold torch trigger • Shielding gas is expelled (gas pre-flows) • Wire feed motor runs at “creep speed” • Arc ignites when the wire electrode makes contact with the workpiece Welding current flows •...
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Design and function MIG/MAG welding Spot welding Figure 5-19 Start • Press and hold torch trigger. • Shielding gas is expelled (gas pre-flows). • Arc ignites after the wire electrode makes contact with the workpiece at creep speed. • Welding current flows. •...
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Design and function MIG/MAG welding Interval Figure 5-20 Start • Press and hold torch trigger. • Shielding gas is expelled (gas pre-flows). Sequence • Arc ignites after the wire electrode makes contact with the workpiece at creep speed. • Welding current flows. •...
Design and function MIG/MAG welding 5.8.10 Conventional MIG/MAG Welding (GMAW non synergic) • Select JOB 188 It is only possible to change the JOB number when no welding current is flowing. Operating Action Result Display element Select JOB list (LED is on) Set JOB number.
Design and function MIG/MAG welding 5.8.11.1 Setting the operating point (welding output) The operating point (welding performance) is set with the wire speed and the welding voltage. Operating Action Result element Switch the display between: Welding current (only actual and hold values are displayed) Welding voltage Material thickness (will be skipped) Wire speed...
Design and function MMA welding MMA welding CAUTION Risk of being crushed or burnt. When replacing spent or new stick electrodes • Switch off machine at the main switch • Wear appropriate safety gloves • Use insulated tongs to remove spent stick electrodes or to move welded workpieces and •...
Design and function MMA welding 5.9.2 Welding task selection Determine welding task (JOB) Item. Selection Welding process JOB 128 Set JOB 128 M 1.81 A M P M ate rial VOLT Wire JOB- LIST DY N m /m in A M P Set welding current M 1.81 A M P...
Design and function MMA welding • Select MMA JOB 128. It is only possible to change the JOB number when no welding current is flowing. Operating Action Result Display element Select JOB list (LED is on) Set JOB number. Wait 3 s until the setting has been applied. 5.9.3 Welding current setting Set the welding current with the rotary dial for the welding parameter settings.
Design and function MMA welding 5.9.5 Arcforce During the welding process, arcforce prevents the electrode sticking in the weld pool with increases in current. This makes it easier to weld large-drop melting electrode types at low current strengths with a short arc in particular.
Design and function MMA welding 5.9.6.1 Hotstart settings • Select MMA JOB 128. (see chapter “Selecting MMA welding tasks”) ENTER NAVIGATION EXIT DY N DY N m /m in A M P Figure 5-26 Display Setting/selection Hotstart current 0% to 200% of the welding current (1% increments) Hotstart time 0.0 s to 20.0 s (0.1 s increments) 5.9.7...
Design and function TIG welding 5.10 TIG welding 5.10.1 Preparing the TIG welding torch The TIG welding torch is to be equipped to suit the relevant welding task! • Fit suitable tungsten electrodes and • an appropriate shielding gas nozzle. •...
Design and function TIG welding 5.10.3 Welding task selection Determine welding task (JOB) Item. Selection Welding process JOB 127 Set JOB 127 M 1.81 A M P M ate rial VOLT Wire JOB- LIST DY N m /m in A M P Set welding current M 1.81 A M P...
Design and function TIG welding • Select TIG JOB 127. It is only possible to change the JOB number when no welding current is flowing. Operating Action Result Display element Select JOB list (LED is on) Set JOB number. Wait 3 s until the setting has been applied. 5.10.4 Welding current setting Set the welding current with the rotary dial for the welding parameter settings.
Design and function TIG welding 5.10.6 Further welding parameters • Preselection: Select TIG JOB 127. (see chapter “Selecting TIG welding tasks”) ENTER NAVIGATION EXIT DY N DY N m /m in A M P Figure 5-30 Display Setting/selection Gas pre-flow time 0.0 s to 20.0 s (0.1 s increments) Ignition current 0% to 200% of the welding current (1% increments)
Design and function TIG welding 5.10.7 TIG welding data display Diagram 5-31 The button for the welding parameter display mode is next to the display. Each time the button is pressed it switches between welding current and welding voltage. The display shows: •...
Design and function TIG welding 5.10.9 Function sequences/operating modes 5.10.9.1 Legend Symbol Meaning Press torch trigger Release torch trigger Welding current Gas pre-flows Gas post-flows Non-latched Latched Time Upslope time Downslope time Down Ignition current start End-crater current 099-005266-EW501 07.05.2014...
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Design and function TIG welding Non-latched mode Figure 5-33 1st cycle • Press and hold torch trigger. • Shielding gas is expelled (gas pre-flows). The arc is ignited using liftarc. • The welding current flows with the value set for the starting current I start •...
Design and function TIG welding Latched mode Figure 5-34 1st cycle • Press and hold torch trigger. • Shielding gas is expelled (gas pre-flows). The arc is ignited using liftarc. • The welding current flows with the value set for the starting current I start 2nd cycle •...
Design and function Machine configuration menu 5.11 Machine configuration menu 5.11.1 Selecting, changing and saving parameters NOTE ENTER (Enter the menu) • Switch off the machine at the main switch. • Press and hold the "sequence parameter" push-button and switch the machine on again at the same time.
Design and function Machine configuration menu 5.11.2 Matching the cable resistance The resistance value of cables can either be set directly or it can be matched using the power source. The factory setting of the power sources is 8 m-ohm. This value correponds to a 5 m earth cable, a 1.5 m intermediate hose package and a 3 m water-cooled welding torch.
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Design and function Machine configuration menu 1 Preparation • Switch off the welding machine. • Unscrew the gas nozzle of the welding torch. • Cut off the welding wire to be flush with the contact tip. • Retract the welding wire a bit (approx. 50 mm) on the wire feeder. Now there should be no more welding wire in the contact tip.
Maintenance, care and disposal General Maintenance, care and disposal DANGER 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. •...
Maintenance, care and disposal Maintenance work 6.2.3 Annual test (inspection and testing during operation) NOTE The welding machine may only be tested by competent, capable personsl. A capable person is one who, because of his training, knowledge and experience, is able to recognise the dangers that can occur while testing welding power sources as well as possible subsequent damage and who is able to implement the required safety procedures.
In addition to this, returns are also possible throughout Europe via EWM sales partners. Meeting the requirements of RoHS We, EWM AG Mündersbach, hereby confirm that all products supplied by us which are affected by the RoHS Directive, meet the requirements of the RoHS (Directive 2002/95/EC).
Rectifying faults Checklist for rectifying faults Rectifying faults All products are subject to rigorous production checks and final checks. If, despite this, something fails to work at any time, please check the product using the following flowchart. If none of the fault rectification procedures described leads to the correct functioning of the product, please inform your authorised dealer.
Rectifying faults Error messages (power source) Error messages (power source) NOTE A welding machine error is indicated by an error code being displayed (see table) on the display on the machine control. In the event of a machine error, the power unit is shut down. The display of possible error numbers depends on the machine version (interfaces/functions).
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Rectifying faults Error messages (power source) Error Category Possible cause Remedy Error 18 No speedometer signal from Check the connection and particularly the (WF. Sl.) second wire feeder (slave speedometer of the second wire feeder drive) (slave drive). Legend for categories (error reset) a) The error message will disappear once the error has been rectified.
Rectifying faults Resetting welding parameters to the factory settings Resetting welding parameters to the factory settings RESET D YN VOLT D YN VOLT Figure 7-1 Display Setting/selection Code of machine control Initialisation complete All customised welding parameters haven been overwritten by the factory settings. 099-005266-EW501 07.05.2014...
Rectifying faults Resetting JOBs (welding tasks) to the factory settings Resetting JOBs (welding tasks) to the factory settings 7.4.1 Resetting a single JOB RESET ENTER JOB- JOB- LIST LIST EXIT Figure 7-2 Display Setting/selection Reset to factory settings The RESET will be done after pressing the button. The menu will be ended when no changes are done after 3 sec.
Rectifying faults Resetting JOBs (welding tasks) to the factory settings 7.4.2 Resetting all JOBs NOTE All customised welding parameters that are stored will be replaced by the factory settings. RESET ENTER JOB- JOB- LIST LIST EXIT Figure 7-3 Display Setting/selection Reset to factory settings The RESET will be done after pressing the button.
Technical data Picomig 305 puls D2 Technical data NOTE Performance specifications and guarantee only in connection with original spare and replacement parts! Picomig 305 puls D2 Setting range MIG/MAG Welding current 5 A to 300 A Welding voltage 14.3 V to 29 V 10.2 V to 22 V 20.2 V to 32 V Duty cycle (DC) at 40 °C...
Technical data Picomig 305 puls D3 Picomig 305 puls D3 Setting range MIG/MAG Welding current 5 A to 300 A Welding voltage 14.3 V to 29 V 10.2 V to 22 V 20.2 V to 32 V Duty cycle (DC) at 40 °C 300 A 260 A 100%...
Accessories General accessories Accessories NOTE Performance-dependent accessories like torches, workpiece leads, electrode holders or intermediate hose packages are available from your authorised dealer. General accessories Type Designation Item no. 5POLE/CEE/16A/M Machine plug 094-000712-00000 DM AR/MIX 35L/MIN Manometer pressure regulator 094-000009-00000 G1 G1/4 R 3M Gas hose 094-000010-00003...
Replaceable parts Wire feed rollers Replaceable parts CAUTION Damage due to the use of non-genuine parts! The manufacturer's warranty becomes void if non-genuine parts are used! • Only use system components and options (power sources, welding torches, electrode holders, remote controls, spare parts and replacement parts, etc.) from our range of products! •...
Appendix A JOB-List Appendix A 11.1 JOB-List NOTE MIG/MAG pulse arc welding can be selected with JOBs 6-9, 34-36, 42-44, 74-76, 78-80, 82-84, 86-88, 90-92, 94-96, 110, 111, 114, 115, 118, 119, 122, 123, 206 and 207. • If an attempt is made to set another JOB to pulse, "noP" = "no Pulse" appears briefly on the display and the machine is reset to standard.
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