Plasma Cutter Owners Manual P40HF - R
Contents
1. Make sure work area is protected by proper shielding to avoid injury to passers by 12 Operating Machine Please ensure all torch consumables are tight before use Ensure machine has been setup as previously stated Turn on the machine and the power light indicates and cooling fan is running Set the function switch in the test gas position air will flow from torch head now set the air pressure in gauge using adjuster on regulator on rear of machine to 50PSI Once the correct air pressure has been set press down the adjuster on air regulator and set the function switch to the cutting position Ensure earth clamp is connected to workpiece or workbench ensuring a good clean point of contact Select cutting amperage knob to desired cutting power the following guide lines will vary in accordance to material grade characteristics and user operation 20 Amps for up to 6mm on mild steel 30 Amps for up to 9mm on mild steel 40 Amps for up to 12mm on mild steel When cutting aluminium alloys and stainless steel cutting thickness is reduced by approximately 2096 Hold torch in starting position on work and press torch switch and the pilot arc will initiate blue flame from torch once the pilot arc is in contact with the workpiece it will sense this and switch to main cutting power Once you come to the end of cut workpiece the machine will sense this and turn off main cutting power and re start the pilot arc If you have now fi2. PLASMA 40HF INVERTER PLASMA CUTTER OPERATION INSTRUCTIONS www r techwelding co uk Tel 01452 733933 Thank you for selecting the R Tech Plasma 40 Inverter Plasma Cutter The Plasma 40 has many benefits over traditional transformer plasma cutters including infinite power control HF pilot start and HF pilot restart which is ideal for cutting mesh etc quick fitting cost effective torch long life cost effective torch consumables and a 60 industrial duty cycle We want you to take pride in operating our Plasma 40HF as much pride as we have taken in making this product for you Please read all information in this manual before operation PLEASE EXAMINE THE CARTON AND EQUIPMENT FOR DAMAGE IMMEDIATELY When this equipment is shipped title passes to the purchaser upon receipt from the courier Consequently all claims for material damaged in shipment must be made by purchaser against the transportation company used Please record your equipment identification below for future reference This information can be found on the data plate at rear of machine Product Plasma 40HF Serial No Date of Purchase Where Purchased Whenever you request replacement parts or information on this equipment please always supply information you have recorded above This product is covered by a 2 year parts and labour warranty we will cover cost of collecting and returning the item to you External items torch earth lead etc are
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4. covered by a 3 month warranty Any faults damage found caused by a customer will be charged accordingly Pay particular attention to the safety instructions we have provided you for your protection The level of seriousness to be applied to each section is explained below WARNING This statement appears where the information must be followed exactly to avoid serious personal injury CAUTION This statement appears where the information must be following to avoid a minor personal injury or damage to this equipment Introduction The R Tech Plasma 40HF is a member of our field acclaimed family of welding products Premium features include Inverter power source more efficient to operate provides smoother weld characteristics Infinite cutting power adjustment allows fine tuning of cut characteristics HF Pilot start Enables easy arc start even on painted surfaces HF pilot arc restart ideal for cutting mesh etc Digital amp meters Quick fitting torch for easy torch fitment replacement Long life Low cost torch consumables 60 Duty cycle at 40 Amps 40 Dr Duo Recommended Processes The R Tech Plasma 40HF is recommended for the plasma cutting processes within its output capacity of 40 Amps DC Equipment Limitations The R Tech Plasma 40 is protected from overloads beyond the output ratings and duty cycle as per machine specifications with thermostat protection of the output coils and recti
5. hand held P60100 THH 17 Torch Head Machine P60100 THM Torch Complete 6m Hand Held P60100 6MHHT Torch Complete 6m Machine type 60100 6 Plasma torch switch TS1 Wiring Diagram 18 PLASMA WHF with pilot arc DC INVERTER AIR PLASMA CUTTING MACHINE WIRING DIAGRAM POWER SWITCH eis INPUT Tn 1X2207230240V transformer T DWI DRiI6V I Mn MA Cum ORIAV E D D RI6V phase over heat e YER R BBL Y GR GR BEN DGKRI6V DWIETV SOL GAS VALVE UNLOAD VOLTAGE Hw gi B EI G2 JB 2 B Bn G3 PS R equal Red Y equal Yellow G equal Bl equal W equa B equal Br equal O equal Gr equal Green Blue White Black Brown Orange Gray D DOUBLE 19 e Do nol touch electrically live parts e Keep flammable materials away e Wear eye ear and body proleclion elecirode with skin or wel clothing e Insulate yourself from work and ground AVI S O D E e No toque las partes los electrodos e Mantenga el material combustible e Prot jase los ojos los o dos y el carga con la piel o ropa moja fuera del rea de trabajo cuerpo a R ECAUCION e Aislese del trabajo y de la tierra French e Ne laissez la peau ni des v te e Gardez l cart de tout mat riel e Prot gez vos yeux vos oreilles el ill amp eere c inflammable v
6. Amperage control knob This adjusts the amperage cutting power from 20 to 40 amps Note LED display will show cutting amperage when you are cutting 3 L E D amperage display When cutting this shows the actual cutting amperage 4 Test Gas Cutting selector switch When in the up position this is test gas mode when setting air pressure switch to test gas so you obtain actual air flow cutting pressure When in the down position this is cutting mode you can now start cutting 5 Auto Standard switch 11 When in the down position this is in standard cutting mode this is the normal operating position for plasma cutting with a hand held and machine type torch When in the up position this is in auto mode this is for special applications when using automated machinery Not normally used Operating machine SAFETY PRECAUTIONS ELECTRIC SHOCK CAN KILL Do not touch electrically live parts or electrode with skin or wet clothing Insulate yourself from work and ground Always wear dry insulating gloves WARNING FUMES AND GASES can be dangerous Keep your head out of fumes amp gases produced from welding Use ventilation or exhaust to remove fumes amp gases from breathing zone and general AW WELDING SPARKS can cause fire or explosion WARNING Keep flammable material away from work area Do not weld on containers that have held combustibles A 224 ARC RAYS can burn WARNING Wear eye ear and body protection
7. ained press down knob to secure Air pressure input Screw supplied PCL fitting into regulator ensuring no air leaks You can also fit other connectors to suit your needs 2 Earth connection This can be used to earth the machine to workbench if you are experiencing interference from the HF Sometimes required when using CNC automated machinery Not normally used Mains input cable Fit required plug as per your electrical installation 5 POWER On Off Switch Turns machine on and off the switch illuminates when machine turn on Front machine connections Fig 2 1 Earth Workpiece connector Connect the earth lead negative to this connector Insert male connector into socket and twist clockwise until tight Secure other end of earth lead to Workpiece via the earth clamp 2 FUSE pilotarc fuse 3 Torch switch socket Connect the torch switch plug 4 pin and screw on retaining ring to secure 4 Pilot lead connector Connect the ring terminal from torch Un screw retainer fit ring terminal onto shaft and refit retainer ensuring it is tight Torch power connector Connect the main torch cable by screw clockwise until tight 10 Controls and Settings 4 1 TEST GAS CUTTING AUTO 0 SE AIR PRESSURE STANDARD PLASIAAAOHF Ce Fig 1 1 Air pressure gauge This shows the air pressure as set by regulator at rear of machine This should be set to 50PSI when the test gas button is activated 2
8. arning light is lit on machine 16 Check if fan is running if not contact R Tech for repair Check the cooling vents for obstruction blow out machine with clean dry low pressure air supply Check for adequate ventilation around machine 6 Erratic cut Torch spitting when cutting Check torch consumables and replace if necessary as per instructions earlier in this manual Check if correct amperage for thickness of metal if to slow travel speed or to much cutting power increase speed of cut or reduce cutting amperage When machine senses no metal left to cut it will switch of main cutting power and switch on HF pilot arc this is the HF pilot arc restart Water contamination in torch head Check for water in water trap at rear of machine if water is present drain air compressor clean water out of air lines empty water trap by pressing water release button on bottom of air regulator water trap Fit new consumables as per instructions earlier in this manual Plasma Torch Consumables parts list R Tech Torch Spares Plasma 40HF Part No Electrode P40 EL Cutting Tip 1 0mm 40 Amp P40 CT1 Ceramic Cup P40 CC Spring Stand off P40 SS Torch Head Hand Held P40 THH Torch Complete Hand Held 6M P40 6MHHT Plasma 60 80 100 HF Electrode P60100 EL Cutting tip 0 8mm 30 Amp 60100 8 Cutting tip 1 1mm 60 Amp P60100 CT11 Cutting tip 1 3mm 80 Amp P60100 CT13 Cutting tig 1 5mm 100 Amp P60100 CT15 Shroud P60100 SH Torch Head
9. carry out the following procedure aer Nr 19 Switch off machine Ensure torch has cooled down to avoid burns Unscrew the pink ceramic shroud Remove the silver cutting tip Check the condition of cutting electrode replace cutting electrode if tip is worn 1 2 mm and end is concave Fit new cutting electrode by screwing in and tweaking with pair of pliers Do not over tighten as this will cause thread torch head damage Fit new cutting tip by screwing in and tweaking with a pair of pliers Do not over tighten as this will cause thread torch head damage Refit pink ceramic cup by screwing on hand tight Turn machine back on and continue cutting WARNING 14 Maintenance Routine and periodic maintenance ELECTRIC SHOCK CAN KILL Turn the input power OFF at the mains switch amp fuse box and remove mains plug from socket before working on this equipment Have a qualified electrician install amp service this Plasma cutting equipment Allow machine to sit for 5 minutes minimum after disconnection from mains power to allow the power capacitors to discharge before working inside this equipment Do not touch electrically live parts 1 Periodically 3 6 months depending on use environment remove the side top panels of machine and clean out machine with a low pressure dry air line paying particular attention to PC Boards Fan blades and switchgear Failure to maintain plant can void manufacturers warranty In
10. fiers Cutting Capability Duty Cycle The R Tech Plasma 40HF is rated at 40 Amps at 60 duty cycle on a ten minute basis If the duty cycle is exceeded a thermal protector will shut machine off until the machine cools Technical Specifications MODEL PLASMA 40HF Power Voltage 220 240V 50 60Hz Input Current 28A Rated Output Current 40A Current Adjusting Range 20 40A No load Voltage 200V Rated Duty Cycle 6096 Working Mode HF Start Air Pressure 50 PSI Max Cutting Thickness Clean cut mild steel 12mm Max Cutting Thickness Severance cut mild steel 16mm After Flow Time 10 Seconds Dimensions 390 X 190 X 290 5 Safety Precautions Read entire section before starting installation WARNING N Electric Shock can kill Only qualified personnel should perform this installation Turn off input power at the fuse box before working on this equipment Do not touch electrically live parts Always connect the machine to an earthed mains supply as per national recommended standards Select suitable location Place the plasma cutter where clean cooling air can freely circulate in and out of the front amp rear louver vents Dirt dust or any foreign material that can be drawn through vents into plasma cutter must be kept to a minimum Failure to observe these precautions can result in excessive operating temperatures which can lead to plant failure Grinding Do not direct
11. grinding particles towards the plasma cutter An abundance of conductive material can cause plant failure Stacking This machine cannot be stacked Transport Unloading Never underestimate the weight of equipment never move or leave suspended in the air above people Use recommended lifting equipment at all times WARNING Falling Equipment can cause injury Never lift plasma cutter with gas bottle attached Never lift above personnel Tilting Machine must be placed on a secure level surface or on a recommended undercarriage trolley This machine may topple over if this procedure is not followed Environmental Rating The plasma power source carries the 215 rating It may be used in normal industrial and commercial environments Avoid using in areas where water rain is around 6 Electrical Installation WARNING AN ELECTRIC SHOCK CAN KILL Machine grounding and High Frequency Interference Protection This plasma cutter must be grounded to earth See national electrical codes fro proper grounding methods The high frequency generator being similar to a radio transmitter may cause interference to radio TV and other electronic equipment These problems may be the result of radiated interference Proper grounding methods can reduce or eliminate this Radiated interference can develop in the following ways 1 Direct interference from welder power source 2 Direct interference from the welding lead
12. nished cutting release torch trigger and pilot arc will stop Air will continue to flow from torch for a preset time to cool torch consumables Getting correct amperage cutting speed for desired job The combination of correct cutting amperage and travel speed can change per user here are some tips on obtaining optimum settings Blow back when cutting If you experience blow back and the metal is not cut all the way through you either are traveling too fast or you need to increase the cutting amperage Cutting arc is erratic and work is being cut all way through You are traveling too slow or cutting with too high amperage for work What is happening is the machine is sensing that there is no metal left to cut and turning off main cutting power and going back to pilot arc mode and when you move again it senses more metal to cut and brings main cutting power back in P 13 It can take a while to get used to plasma cutting if never done before Experiment with settings on some scrap material until you find the best amperage cutting speed for user If you ever have any questions on settings call us and speak to one of our experienced technicians who will be happy to help you Replacing torch consumables ELECTRIC SHOCK CAN KILL lease ensure machine is turned off before changing consumables If cutting performance is poor you probably need to check change the torch consumables To change the plasma cutting consumables
13. nput power OFF at the mains switch amp fuse box before working on this equipment Have a qualified electrician install amp service this equipment Allow machine to sit for 5 minutes minimum to allow the power capacitors to discharge before working inside this equipment Do not touch electrically live parts The Plasma 40HF Plasma Cutters require a 240V 50 60Hz 1 Phase supply It requires an 32A supply It comes with a 3 metre mains cable attached Connect wires according to national coding Brown wire Live Blue wire Neutral Green Yellow Wire Earth Ground Connecting to a mains electrical supply THIS MACHINE IS OF AN INDUSTRIAL SPECIFICATION AND MUST BE FITTED TO A 32AMP 240V MAINS INPUT DO NOT RUN ON 13AMP PLUG FAILURE TO RUN ON CORRECT SUPPLY WILL IN VALIDATE WARRANTY Connecting to an Engine Driven Generator If connecting this Plasma Cutter to an engine driven generator please ensure the following Minimum Generator Output 8KVA continuous Generator to be fitted with AVR automatic voltage regulation DO NOT USE ON A GENERATOR WITHOUT AVR Connecting to a generator without the above minimum requirements will in validate your warranty Connections for Plasma 40HF Rear Machine connections Fig 1 Air pressure regulating knob This regulates the air pressure as displayed in gauge on front of machine To adjust pressure pull knob upwards and turn to adjust pressure once correct pressure is obt
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15. s 3 Direct interference radiated from feedback into power lines 4 Interference from re radiation by un grounded metallic objects Keeping these contributing factors in mind installing equipment as per following instructions should minimize problems 1 Keep the welder input power lines as short as possible and enclose as much of them as possible in metal conduit or equivalent shielding There should be a good electrical contact between this conduit and ground Earth 2 Keep the work and electrode leads as short as possible Tape the leads together where practical Be sure the torch and earth leads rubber coverings are free from cuts and cracks that allow welding power leakage 4 Keep earth lead connection to work in good condition Clean area on workbench where earth clamp is situated on a regular basis Input Connections Make sure the voltage phase and frequency of input power is as specified on machine rating plate located at rear of machine Have a qualified electrician provide suitable input power as per national electrical codes Make sure machine is earthed grounded Make sure fuse or circuit breaker is correct rating for machine Using fuses or circuit breakers 7 smaller than recommended will result in nuisance shut off from welder inrush currents even if cutting at low amperages Failure to follow these instructions can cause immediate failure within the welder and void machines warranty Turn the i
16. spect input and output cables amp hoses for fraying and cuts replace if damaged present Keep cutting torch and earth cables in good condition Clean air vents to ensure proper air flow and cooling The fan motor has sealed bearings which requires no maintenance 15 FAULT DIAGNOSTICS Power light not lit Check machine on off switch is in the on position Check Input power to machine Check plug wiring Check mains trip fuses No output Fan runs Power light is lit Check torch connections are secure and torch switch operation try replacing plasma cutting torch No output Power light is lit Warning light is lit Welding application may have exceeded recommended duty cycle allow machine to cool down until the warning light goes out No output Power light is lit Air at torch tip No Pilot Arc Check condition of torch consumables and replace if worn Check pilot arc protecting fuse on front panel of machine and replace if blow If fuse keeps blowing contact R Tech for repair replacement torch Please ensure machine is switched off before checking fuses Check for water in water trap at rear of machine if water is present drain air compressor clean water out of air lines empty water trap by pressing water release button on bottom of air regulator water trap Fit new consumables as per instructions earlier in this manual HF PCB Failure Contact R Tech for repair Machine keeps overheating W
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