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Function description

Hotstart
current

t (s)

Current
[A]

Hotstart

Time

Welding
current

Hotstart

Slope

time

5.2.1 2 cycle operating mode

The 2 cycle mode is recommended for fast, controlled tacking and manual spot
welding.



1. cycle Operate the torch trigger



The inert gas solenoid valve opens



After the set gas pre-flow time has expired the power unit is switched on



Welding voltage on



Wire feed runs at the initial wire feed speed



Arc is ignited after the welding wire contacts the workpiece



The feed switches to the set wire feed speed of the welding process



The welding current flows with the set Hotstart value



After the Hotstart time has elapsed, the welding current is adjusted from
the Hotstart value to the welding current over the duration of the Hotstart
slope time



2. cycle Release the torch trigger



Wire feed stops



Freeband and freeband control are executed



The inert gas is switched off after the gas post-flow time has expired

Figure 12:

2 cycle operating mode procedure with Hotstart

Содержание FOCUS.ARC P 250

Страница 1: ...GB OPERATING INSTRUCTIONS MIG MAG impulse welding systems FOCUS ARC P 250 450...

Страница 2: ...e de Document No 730 2600 Date of issue 18 02 2019 REHM GmbH u Co KG Uhingen Germany 2018 The content of this description is the property of REHM GmbH u Co KG The copying and distribution of this docu...

Страница 3: ...s of the operating panel 23 5 CORNER MENU FUNCTIONS 24 5 1 Corner menu welding processes top left 24 5 1 1 Conventional MIG MAG MSG welding 24 5 2 Corner menu operating mode top right 24 5 2 1 2 cycle...

Страница 4: ...50 8 4 Temperature monitoring of the power units 50 8 5 External cooling of the power units 50 8 6 Fan and water pump control 50 9 ACCESSORIES AND OPTIONS 51 9 1 Unit versions accessories and options...

Страница 5: ...R 64 13 1 Safety instructions 64 13 2 Maintenance table 65 13 3 Cleaning the inside of the unit 65 13 4 Cooling water check 66 13 5 Proper disposal 66 14 CIRCUIT DIAGRAMS 67 14 1 Characteristic curve...

Страница 6: ...ing only parts that comply with our strict quality demands The FOCUS ARC P has been developed and designed according to the generally accepted rules of technology and safe operation All relevant legal...

Страница 7: ...Introduction 7 1 2 General description Figure 1 FOCUS ARC P450 WS Figure does not illustrate standard equipment...

Страница 8: ...ly stated in writing by REHM only for sale to commercial industrial users and are only intended to be used by commercial industrial users The machines may only be operated by persons who trained in th...

Страница 9: ...steps that must be performed in the order listed Section 2 2 Warning symbols on the system Cross section here to Section 2 2 Warning symbols on the system Bold text is used for emphasis Note indicates...

Страница 10: ...ially dangerous situation Death or serious injury may result if the warning is not heeded Caution warns of a potentially harmful situation Slight or minor injuries or property damage may result if the...

Страница 11: ...ructions contained in the current text must also be observed Beside the advice given in these operating instructions the general safety and accident prevention regulations in Germany among others UVV...

Страница 12: ...ating instructions must be constantly at hand in a suitable place at the site of use of the system Before using the system be sure to read the information compiled in these operating instructions Thes...

Страница 13: ...Function description 13 3 Unit description Figure 2 FOCUS ARC P 450WS with case and water cooling unit Front view Figure does not illustrate standard equipment...

Страница 14: ...Function description 14 Figure 3 FOCUS ARC P 300W compact and water cooled Front view Figure does not illustrate standard equipment...

Страница 15: ...Function description 15 Figure 4 FOCUS ARC P 450 Rear view Figure does not illustrate standard equipment...

Страница 16: ...Function description 16 Figure 5 FOCUS ARC P wire feed case...

Страница 17: ...the welding current source 8 Current socket negative 9 Current socket positive 10 Cooling air inlet 11 Inlet Filling Coolant Water cooling unit 12 Viewing window Stand Coolant Water cooling unit 13 Ad...

Страница 18: ...Function description 18 4 Functional description 4 1 Overview of the operating elements Figure 6 Operating element and main screen FOCUS ARC P...

Страница 19: ...l submenus Button Main screen Home Jumps directly to the first screen page Button Back Back Always jumps back one level Fig 9 Corner function buttons Corner menu selection buttons Direct menu buttons...

Страница 20: ...unctions No Symbols Description function BF1 Corner menu welding processes MSG welding BF2 Corner menu operating modes 2 cycle 2 cycle with slope down 4 cycle 4 cycle with slope down Spot Spot with sl...

Страница 21: ...u welding process MSG Normal Power Arc Power Puls II Focus Puls Root BF5 Display panel Welding current A BF6 Display panel Voltage V BF7 Display panel Material thickness mm BF8 Display panel Wire feed...

Страница 22: ...BF14 Language BF15 Function Assist not available at present BF16 Function Job Memory Program BF17 Setup Settings BF18 Back button Home and Back BF19 Fault message BF20 Links in the characteristic cur...

Страница 23: ...unit is switched off When the unit is switched back on the stored parameters are automatically activated An arc must be struck for any changes to the parameters to be saved when the unit is switched o...

Страница 24: ...ng With continuous MSG welding very different material transitions and also different types of arc occur depending on the selected arc power and the inert gas used see also Section 5 4 welding process...

Страница 25: ...at the initial wire feed speed Arc is ignited after the welding wire contacts the workpiece The feed switches to the set wire feed speed of the welding process The welding current flows with the set H...

Страница 26: ...the workpiece The feed switches to the set wire feed speed of the welding process The welding current flows with the set Hotstart value After the Hotstart time has expired the welding current is chang...

Страница 27: ...speed Arc is ignited after the welding wire contacts the workpiece The feed switches to the set wire feed speed of the welding process The welding current flow is at the set Hotstart value set for we...

Страница 28: ...the welding wire contacts the workpiece The feed switches to the set wire feed speed of the welding process The welding current flows with the set Hotstart value 2 cycle Release the torch trigger The...

Страница 29: ...as expired the power unit is switched on Welding voltage on Wire feed runs at the initial wire feed speed Arc is ignited after the welding wire contacts the workpiece The feed switches to the set wire...

Страница 30: ...is at the set value set for welding The spot time welding time is running The welding process is automatically terminated after the set spot time has expired The wire feed stops after the slope down t...

Страница 31: ...g voltage on Wire feed runs at the initial wire feed speed Arc is ignited after the welding wire contacts the workpiece The feed switches to the set wire feed speed of the welding process The welding...

Страница 32: ...ng time is running After the set welding time has expired the welding current is reduced to the value set for the slope down current over the duration of the slope down time Wire feed stops after the...

Страница 33: ...transition of the filler metal the heat input and the arc length The corner menu welding process BF4 is used to select MSG Normal Power Arc Power Puls II Focus Puls Root 5 4 1 Power Arc The Power Arc...

Страница 34: ...niversal applications Robust compensates for tolerances Particularly for Fe 5 5 Display panel Welding current A The required display panel welding current BF5 can be selected by actuating the rotary e...

Страница 35: ...The material thickness of the base material to be welded can be adjusted by turning the rotary encoder 5 10 Display panel Wire feed speed The required wire feed speed display panel BF8 can be selecte...

Страница 36: ...he welding parameters is carried out for the most part directly in the illustrated welding wave using the push and rotate encoder Fig 10 The representation and setting options depend on the unit type...

Страница 37: ...Function description 37 Figure 20 Submenu MSG parameters...

Страница 38: ...ent time can be set individually for each characteristic curve Hotstart slope time to set the time in which the current is reduced or increased from the hot start to the welding current Double pulse a...

Страница 39: ...er and a lower value provides a longer wire end Burning off set too large Wire end may burn to the contact tip Gas post flow time Time between the power section being switched off end of burning off t...

Страница 40: ...s are displayed as flags in a selection list Use the cursor to select a language and confirm by pressing the rotary encoder The language becomes active immediately The selected language is illustrated...

Страница 41: ...selection list drop down list for the existing submenu Select the Job folder by turning and pressing the rotary encoder Select the required field by turning and pressing the rotary encoder The select...

Страница 42: ...42 Press the Home button BF18 to return to the main screen Figure 23 Submenu Job Text input Symbol Function Cursor left Cursor right New line Delete letter to the left of the cursor Table 4 Explanatio...

Страница 43: ...tary encoder Select the required field by turning and pressing the rotary encoder The selected field has a blue frame Select the Load function by pressing the Corner menu key The selected field is hig...

Страница 44: ...turning and pressing the rotary encoder Select the required field by turning and pressing the rotary encoder The selected field has a blue frame Select the Delete function by pressing the Corner menu...

Страница 45: ...ary encoder Select the required job by turning and pressing Select the Rename function by pressing the Corner menu key The stored name can be changed The new job name is saved by selecting and pressin...

Страница 46: ...ry encoder Fig 10 The selected line is highlighted in orange Press the push and rotary encoder Fig 10 to display or activate the selection of the setting to be changed The value or setting to be chang...

Страница 47: ...s test Time Seconds Hold mode Inactive Action Action and time Hold time Seconds LBL correction Type Voltage Wire feed Welding circuit Inductance Micro Henry Welding circuit Resistance Milli Ohm Up Dow...

Страница 48: ...the torch or electrode holder The symbol is located on the left in the characteristic curve info bar The symbol illuminates red and flashes in the event of excess temperature The power section is swit...

Страница 49: ...er a period of approx 2 seconds to the set threading speed t VD ca 2 s ca 2 s Figure27 Threading procedure 8 2 Gas test The gas test is used to set the required gas quantity at the pressure reducer Th...

Страница 50: ...n the main screen After the power components have cooled down the system automatically switches back to the operating state without power 8 5 External cooling of the power units The power units of the...

Страница 51: ...1307057 FOCUS ARC P 300 WS 0 8 1 0 operation in the wire feed case 1307058 FOCUS ARC P 350 S 1 0 1 2 operation in the wire feed case 1307067 FOCUS ARC P 350 WS 1 0 1 2 operation in the wire feed case...

Страница 52: ...7601566 Torch MAG MB 24D 4m Grip 7601567 Torch MAG MB 24D 5m Grip 7601568 Torch MAG MB 26D 3m Grip 7601569 Torch MAG MB 26D 4m Grip 7601570 Torch MAG MB 26D 5m Grip 7601562 Torch MAG MB 36D 3m Grip 76...

Страница 53: ...s set W 340 7700621 Wear parts set W 440 7700622 Wear parts set W 540 7700623 Ground cable Item no Ground cable 35mm 4m 13mm 400A clamp 7810102 Ground cable 50mm 4m 13mm 500A clamp 7810109 Ground cabl...

Страница 54: ...etrofit equipment Housing Item no Torch holder on compact machine 1180270 Torch holder on wire feed case 1180273 Options Housing Item no Operation on the machine 1381153 Without trolley with base plat...

Страница 55: ...Section 2 26 previously VGB 15 S The REHM FOCUS ARC P gas welding equipment complies with the above mentioned regulations It must be noted that for work under increased electrical hazard the welding...

Страница 56: ...and 450W compact units and the FOCUS ARC P 250WS 300WS 350WS 400WS and 450WS units with separate wire feed case cool the torch with water The water level in the tank must be checked before commissioni...

Страница 57: ...ally through the guides to the feed rolls Ensure that you use the appropriate drive rollers according to the wire diameter and wire type solid When the wire has been inserted into the guide of the tor...

Страница 58: ...been checked by the operator are functional and ready for use the operator and the assisting persons are wearing the appropriate protective clothing and the securing of the work area has been complete...

Страница 59: ...me in litres The MIG MAG welding torchesrecommended by REHM are to be connected in gas cooled design to the REHM units of the types FOCUS ARC P 250 300 350 400 450 250S 300S 350S 350S 400S and 450S wa...

Страница 60: ...access must be closed to avoid the risk of injury e g crushing The wire feed speed must be set so that a smooth and stable arc is produced When increasing the welding energy the wire feed speed incre...

Страница 61: ...lts Fan does not rotate Cause Remedy Fuse defective Replace fuse Fan defective Service required Control defective Service required Cable break Service required Control lamp TEMPERATUR on Cause Remedy...

Страница 62: ...djust speed Arc has a strange colour Cause Remedy Too little or no inert gas Check inert gas supply Incorrect inert gas Use appropriate inert gas Wire unwinds uncontrolled Cause Remedy Wire coil brake...

Страница 63: ...again If the error occurs again Contact service 35 Data record Job Data record for Job is not available or not compatible Load job again If the error occurs again Contact service 42 Permitted temperat...

Страница 64: ...the unit must be switched off and disconnected from the mains supply Before maintenance work the welding system must be switched off and disconnected from the mains supply and secured against unintend...

Страница 65: ...connecting lines and torch hoses checked by qualified personnel log the checks in the logbook provided Perform checks more regularly depending on the country specific laws Every six months Have the c...

Страница 66: ...cleaned by blowing out or sucking out Coolants are hazardous to the environment they must not be drained into the sewage system Dispose of these agents at appropriate collection points for hazardous s...

Страница 67: ...Circuit diagrams 67 14 Circuit diagrams Figure 28 FOCUS ARC P current source...

Страница 68: ...Circuit diagrams 68 Figure29 FOCUS ARC P wire feed case...

Страница 69: ...Circuit diagrams 69 Figure30 FOCUS ARC P water cooling...

Страница 70: ...ol process card E 690 0770 A5 Raspberry PI 3 E 690 0801 A6 PI CAN2 E 690 0802 A7 Power supply E 24VDC_ 5VDC_3A 420 0200 A8 A11 M2 BDE E 690 0795 Complete controls 7 inch E 210 2289 A9 A12 Encoder circ...

Страница 71: ...socket ZWIPA E Case systems 360 0757 X5 Mounting socket Ground workpiece E 430 0122 X6 Mounting socket positive E 430 0540 X7 X12 Mounting socket positive for ZWIPA E 430 0122 X8 X13 Welding torch ce...

Страница 72: ...ipple SET blue Series V Plastic 0 6 1 6 2600400 2 Solid wire feed rolls V 0 6 0 8 7503054 V 0 8 1 0 7503055 V 0 9 1 1 7503065 V 1 0 1 2 7503053 V 1 2 1 6 7503056 Core wire feed rolls V 1 2 1 6 7503066...

Страница 73: ...Components 73...

Страница 74: ...Components 74...

Страница 75: ...Components 75...

Страница 76: ...Components 76...

Страница 77: ...parate wire feed case Water cooled WS kg 70 70 73 73 73 Dimensions without trolley LxWxH Compact gas cooled mm 650x330x624 Compact water cooled W mm 650x330x820 With separate wire feed case Gas cooled...

Страница 78: ...nit 56 Contact tips 59 Cooling the welding unit 56 E Electrodes 59 F Fault 61 64 Function description 18 G Gas nozzles 59 I Increased electrical hazard 55 Inert gases 59 Instructions for use 59 M Mach...

Страница 79: ...s 12 Symbols 9 T Table of faults 61 Technical data 77 Threading 49 Torch accessories 59 Type number 2 Typographic distinctions 9 U Uncoiling mandrel setting 60 W Warning symbols on the system 10 Warni...

Страница 80: ...d comply with the safety requirements for arc welding units in accordance with the following product standards EN 60 974 1 2006 07 Arc welding equipment Part 1 Welding current source EN 60 974 2 2003...

Страница 81: ......

Страница 82: ...ing units Welding accessories and additional materials Welding smoke extraction fans Welding rotary tables and positioners Technical welding consultation Torch repair Machine Service Please contact yo...

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