REHM INVERTIG.PRO digital 240 DC, 240 AC/DC Operating Instructions Manual Download Page 29

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Functional description

3.7.1.3

AC curve shape selection facility

Sine wave

Fig. 14: INVERTIG.PRO digital / Classic application control panel

Graphical display of sine wave curve

Triangle

Fig. 15: INVERTIG.PRO digital / Classic application control panel

Graphical display of triangle curve shape

Square wave

Fig. 16: INVERTIG.PRO digital / Classic application control panel

Graphical display of rectangle curve shape

AC-Matic

Fig. 17: INVERTIG.PRO digital / Classic application control panel

Graphical display of AC-Matic

Noise-optimised

Better penetration than
sine wave shape

Best penetration, low
electrode loading and even
better arc stability.

AC curve shape is automatically
adapted to current strength: With low
currents (< 180A) a sine wave curve
shape is automatically selected, and
higher currents (> 180A) the square
wave curve shape is used.

Summary of Contents for INVERTIG.PRO digital 240 DC, 240 AC/DC

Page 1: ...GB OPERATING INSTRUCTIONS TIG inert gas welding units INVERTIG PRO digital 240 450 DC AC DC...

Page 2: ...http www rehm online de Document number 730 0143 Release date 25 06 2015 Rehm GmbH u Co KG Uhingen Germany 2011 The contents of this description are the sole property of Rehm GmbH u Co KG The disclosu...

Page 3: ...c application 16 3 4 2 Basic settings of the multifunction buttons 17 3 5 Welding procedure multifunction button 17 3 5 1 TIG welding 17 3 5 2 TIG points 17 3 5 2 1 TIG spot welding 2 step 18 3 5 2 2...

Page 4: ...n button 49 3 14 1 System overview 49 3 14 2 Basic selection of machine settings 50 3 14 3 Explanation of system settings 50 3 14 4 Gas test 54 3 14 5 Access authorisation 54 3 14 6 Diagnosis 56 4 Acc...

Page 5: ...essages 72 8 Maintenance work 73 8 1 Safety notes 73 8 2 Maintenance table 73 8 3 Cleaning the inside of the unit 74 8 4 Correct disposal 74 9 Circuit diagrams 75 10 Components of the INVERTIG PRO dig...

Page 6: ...all REHM welding units contain components that live up to strict REHM quality requirements The INVERTIG PRO digital welding unit has been designed and built in accordance with established safety requi...

Page 7: ...Introduction 7 1 2 General description Figure 1 INVERTIG PRO digital...

Page 8: ...ormance transistor switch regulates the set welding current In conjunction with the high switching frequency of 100 kHz this generates an extreme stable and quiet arc A precise processor controller gu...

Page 9: ...ervation of the correct measures with regard to mounting removal and remounting taking into service operation and maintenance as well as disposal Please pay special attention to the specifications in...

Page 10: ...ates a potentially dangerous situation If this is not avoided it may lead to death or serious injury Caution indicates a situation in which damage may occur If this is not avoided it may lead to sligh...

Page 11: ...such The INVERTIG PRO digital inert gas welding units are designed in accordance with EN 60974 1 Arc welding equipment Welding power sources for overvoltage category III and pollution level 3 and wit...

Page 12: ...ains important notes regarding use of the device which enables you to fully use the technical advantages of this REHM devices In addition you will also find information regarding maintenance and upkee...

Page 13: ...Page 37 3 Assist application button Page 46 4 System application button Page 50 5 Multifunction button for top right TFT display Page 15 et seq 6 Multifunction button for bottom right TFT display Pag...

Page 14: ...ontrol functions Call up takes place using the multifunction buttons 5 6 8 9 which are located around the push and rotate knob R Pilot 7 Fig 3 INVERTIG PRO digital Classic application control panel Vi...

Page 15: ...of the control panel Provided that the arc has been ignited all selected parameters are saved in the device when the power is switched off at the main switch After the device has been switched on all...

Page 16: ...rview of all welding parameters including all currently set values Designation of selected parameter 3 4 1 Multifunction buttons of the Classic application The multifunction buttons 5 6 and 8 9 can be...

Page 17: ...the multifunction button 8 as described in chapter 3 4 2 3 5 1 TIG welding The welding parameters for TIG welding are set as described in Chapter 3 4 2 For an explanation of the TIG inert gas welding...

Page 18: ...self to the starting current After the upslope time has elapsed the welding current reaches the preset value I1 The set spot welding time starts to run After the spot welding time has elapsed the curr...

Page 19: ...current automatically sets itself to the pre selected value after the upslope time has elapsed The set spot welding time starts to run The torch button does not have to be pressed and released again f...

Page 20: ...n The set gas pre flow time starts to run and the gas valve opens The arc is ignited after the gas pre flow time has elapsed The welding current automatically sets itself to the starting current After...

Page 21: ...ed in the welding curve that is shown are selected using the push and rotate knob 7 The setting facilities are always selected and adjusted using the same principle 3 6 1 Basic setting of welding para...

Page 22: ...matically set to 0 seconds by the processor controller This speeds up re ignition which saves time when tacking for example 3 6 3 Ignition energy The ignition energy is set as described in Chapter 3 6...

Page 23: ...6 5 Upslope time The upslope time is set as described in Chapter 3 6 1 The upslope time is the time during which the welding current undergoes a linear increase from the starting current to the presel...

Page 24: ...nt I1 to warm up the workpiece then welding with lower current I2 Starting with lower current I1 at workpiece edges then welding with higher current I2 Changing over is possible during 2 step and 4 st...

Page 25: ...percentage ratio can be set to a fixed value in the System application Selecting a suitable end crater current makes the following possible Prevents notches and end crater cracks at end of seam due t...

Page 26: ...the polarity at the output connectors switches continuously between positive and negative polarity With TIG pulsing TIG interval and TIG and electrode welding the torch and the electrode holder are no...

Page 27: ...s the proportion of the negative welding current increases up to 80 and the positive proportion decreases This makes the arc narrower and generates deeper penetration with less electrode loading With...

Page 28: ...ing current again The sine wave shape that is used in this process controlled procedure leads to a considerable reduction in the amount of noise and has technical welding advantages in AC current weld...

Page 29: ...RTIG PRO digital Classic application control panel Graphical display of rectangle curve shape AC Matic Fig 17 INVERTIG PRO digital Classic application control panel Graphical display of AC Matic Noise...

Page 30: ...r for the TIG torch During TIG welding or TIG spot welding with DC current welding usually takes place with this setting During electrode welding the electrode holder is also connected to the upper ou...

Page 31: ...seconds using the graphic Fig 20 INVERTIG PRO digital Classic application control panel Graphical display top left AC frequency auto AC balance view 65 AC curve shape Dual Wave AC and DC time 2 5 s an...

Page 32: ...e Fig 21 Procedure for 2 step welding Special features Re 2nd step By pressing the torch button again during current reduction the welding current can be abruptly reset to I1 This procedure is known a...

Page 33: ...tion is automatically switched off The HF ignition device makes contact free ignition of the arc possible between the electrode and the workpiece by pre ionising the air gap during DC and DC current w...

Page 34: ...matic switching between currents I1 and I2 takes place continuously When doing this you have free choice of which current is the bigger high current and which is the smaller low current Fig 23 Welding...

Page 35: ...t I2 for 0 01 s 10 ms then the value of current I2 again for 0 01 s 10 ms etc Pulsing with such short times results in a narrower and more concentrated arc and deeper penetration 3 9 2 I2 pulse time t...

Page 36: ...setting The setting can be made between 0 and 200 of the selected current I1 infinitely variable using the push and rotate knob 7 but max Imax e g Hotstart 30 and welding current I1 100A Hotstart 130...

Page 37: ...uality Also the individual basic settings of the welding device such as start and end crater current ignition energy etc can be saved and quickly retrieved again for each person if the equipment is be...

Page 38: ...this folder Fig 25 INVERTIG PRO digital Programs application Progr control panel New folder Managing existing folders If you press the Progr application button 2 you will be taken to the Programs app...

Page 39: ...always selected and set using the same principle see chapter 3 12 2 The letters numbers and symbols are arranged on the screen in the same way as they are on the control panel see fig 28 The letters...

Page 40: ...d and set using the same principle see chapter 3 12 2 Rotate the push and rotate knob 7 to the folder to be moved in order to move the selected folder or program to the required location Move appears...

Page 41: ...g the push and rotate knob again The setting options are always selected and set using the same principle see chapter 3 12 2 Rotate the push and rotate knob 7 to select the position to which the progr...

Page 42: ...he selection Fig 31 INVERTIG PRO digital Programs application Progr control panel Delete view Yes No 3 12 3 Loading programs Rotate the push and rotate knob to select the required program The paramete...

Page 43: ...the top right of the screen 12 Fig 33 INVERTIG PRO digital Classic application control panel The loaded program number appears in green text at the top right 3 12 4 Saving programs Make the required m...

Page 44: ...ram or create a new one Press Save multifunction button 5 The program has been saved A new program is stored under the next free program number If an existing program is being overwritten you must rep...

Page 45: ...an be entered Fig 35 INVERTIG PRO digital Assist Application control panel Data value entry selection option Select materials Select weld type butt weld fillet weld Select material thickness for both...

Page 46: ...Note If the material thicknesses differ considerably the Assist application does not calculate a suggestion D1 D2 too great appears on the TFT display After entering all of the required data select t...

Page 47: ...c application control panel Display optimum welding parameters for welding task 3 13 2 Welding tip The welding tip is called up by pressing the multifunction button 5 As well as the parameters additio...

Page 48: ...n button 9 The library is a comprehensive technical database to do with welding and provides information about gas fillers electrodes types of seam and welding position Fig 41 INVERTIG PRO digital Ass...

Page 49: ...ns and procedures can be defined in an extremely convenient and clear way The yellow border colour indicates that you are in the System application Fig 43 INVERTIG PRO digital Assist application contr...

Page 50: ...Down button ignition energy start current pulse time t1 Pulse time t2 pulse frequency end crater current AC balance AC frequency current I1 Current I2 gas pre flow time start current time upslope time...

Page 51: ...s set percentage wise to I1 or can be set to an absolute value Classic application end crater current Percentage or absolute End crater current is set percentage wise to I1 or can be set to an absolut...

Page 52: ...Functional description 52 Welding device language Fig 45 Overview of System application with language selection pull down menu...

Page 53: ...etting Gas preflow time 0 1 s Ignition current 50 Start current 50 Upslope time 0 1 s Current I1 100 A Current I2 80 A Pulse time t1 0 3 s Pulse time t2 0 3 s Downslope time 0 1 s End crater current 2...

Page 54: ...ation An increasing number of companies stipulate fixed parameters for certain tasks in order to safeguard quality However users have different preferences and capabilities For example in terms of wel...

Page 55: ...y 4 characters required by pressing the multifunction button 8 The password is entered as described in Chapter 3 12 2 1 The defined password is accepted by pressing Enter Program application button 2...

Page 56: ...ation of numbers and letters To unlock your INVERTIG PRO digital please notify your REHM customer service of this unlocking code The entry of the password can be repeated by pressing the multifunction...

Page 57: ...x iSystem Water cooled 7631736 R TIG 12 260W 4m Up Down Highflex iSystem 7631703 R TIG 12 260W 12m Up Down Highflex iSystem 7631737 R TIG 12 450W 4m Up Down Highflex iSystem 7631705 R TIG 12 450W 12 m...

Page 58: ...older size 2 4mm CU 5 7733240 Electrode holder size 3 2mm CU 5 7733241 Electrode holder size 4 0mm CU 5 7733242 Electrode holder size 4 8mm CU 5 7730190 Gas diffuser size 1 6 mm CU 5 7730191 Gas diffu...

Page 59: ...ional disruptions or cause defects to the INVERTIG PRO digital CAUTION When using TIG torches with remote control of any type not specifically recommended by REHM the guarantee claim is voided 4 4 REH...

Page 60: ...n is made using the standard 7 pin remote control socket on the rear of the INVERTIG PRO digital The following signals are available Start Stop to start the welding procedure Current I1 to remotely co...

Page 61: ...ronic control This ensures that when welding using alternating current the arc is only ever ignited with direct current and only when the welding current starts to flow does the machine switch to alte...

Page 62: ...orking with welding power sources Welding tasks may only be carried out by specialists or trained personnel familiar with the technology and procedures When welding wear protective clothing and ensure...

Page 63: ...y EMC specifications Always use the accessories provided by REHM Please note that the length of the INVERTIG PRO iSystem cable between the first and last subscribers must not exceed 20m because of the...

Page 64: ...ent with bare skin or wet clothing Always wear gloves and welding masks with the appropriate protection filters when welding Ensure that all parts that you must touch during your work for example clot...

Page 65: ...or solvent treated work pieces as these may give off poisonous gases 6 6 Checks before starting The prerequisites that the unit is set up correctly in accordance with Chapter 5 Putting into operation...

Page 66: ...ure You can choose between lower current or when using alternating current using a larger minus proportion in the balance setting When welding with direct current the electrode is pointed The REHM TIG...

Page 67: ...half wave the aluminium oxide skin is destroyed and a higher temperature occurs at the electrode During the negative half wave the electrode cools down and the aluminium is heated Since tearing the al...

Page 68: ...the work piece then the torch button pressed and the electrode lifted from the work piece by tipping the torch over the gas nozzle Ignition of the arc without high frequency is of benefit when for ex...

Page 69: ...aults REHM control panel not working No display on screen Cause Remedy No mains power supply possibly mains fuse Check mains voltages Fault in power cable or plug Check Current rise time and current d...

Page 70: ...he fan will turn at lower revolutions to higher revolutions when put under more or switches off load Fan is defective Contact service No high voltage impulse Cause Solution HF ignition is set to off S...

Page 71: ...load too high Use thicker electrode Proportion of Plus too high when welding Use the Balance to increase with alternating current the proportion of Minus Connectors for torch and earth cable swapped C...

Page 72: ...orch Switch to TIG operation 30 Through flow coolant Through flow monitor identifies too low a throughput of coolant Monitor blocked by dirt Switch off power source immediately Check whether the CAN c...

Page 73: ...be capped and switched without pressure The warning notes given in Chapter 2 Safety must be taken into account The welding unit and its components are to be maintained in accordance with the specific...

Page 74: ...vironment then the inside of the unit must be cleaned regularly by vacuuming or blasting The frequency of the cleaning process depends on the conditions under which it is used Use clean dry air to cle...

Page 75: ...Circuit diagrams 75 9 Circuit diagrams...

Page 76: ...Circuit diagrams 76...

Page 77: ...Circuit diagrams 77...

Page 78: ...Circuit diagrams 78...

Page 79: ...6900561 6900561 22 IMS rectifier B3 6900585 6900585 6900585 6900585 6900586 6900586 6900586 6900586 23 Anti interference board A8 6900580 6900580 6900580 6900580 6900580 6900580 6900580 6900580 24 IMS...

Page 80: ...07 7301604 7301608 7301605 7301609 7301606 7301610 51 Resistor 5000258 5000258 5000258 5000258 5000258 5000258 5000258 5000258 52 Anti interference board AC switch 6900592 6900592 6900592 6900592 53 G...

Page 81: ...Components 81 Figure 53 Exploded view of an INVERTIG PRO digital 240 DC 450 AC DC left...

Page 82: ...Components 82 Figure 54 Exploded view of an INVERTIG PRO digital 240 DC 450 AC DC right...

Page 83: ...otection class IP 23 IP 23 IP 23 IP 23 Apex voltage HF Up kV 12 12 12 12 Insulation class B B B B Torch cooling type Gas Water Gas Water Gas Water Gas Water Dimensions L W H mm 520 x 360 x 460 520 x 3...

Page 84: ...nside of the unit 74 Connecting the earth cable 65 Correct use 9 D Dilemmas 34 Direct current welding 67 DVS 68 F Faults 69 G Gap bridging 34 H High voltage ignition 33 I Ignition 68 Increased electri...

Page 85: ...operation 61 R REHM control panel 13 Remote control units 57 Residual dangers 11 S Safety Dangers of non observation 11 Safety notes 6 10 11 Safety symbols 6 Setting up 61 Stick electrodes 68 Storing...

Page 86: ...in this Directive and meet the safety requirements for equipment used for arc welding in accordance with the following product standards EN 60 974 1 2006 07 Arc welding equipment Part 1 Welding power...

Page 87: ......

Page 88: ...ls Welding smoke extraction fans Welding rotary tables and positioners Technical welding consultation Torch repair Machine Service Please contact your local distributor REHM WELDING TECHNOLOGY German...

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