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Electrical Installation

 

WARNING! 

ELECTRIC SHOCK CAN KILL 

 

Machine grounding and High Frequency Interference Protection

 

This plasma cutter must be grounded to earth. See national electrical codes for 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 leads   

   

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.   

3.  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 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 input power OFF at the mains switch & fuse box before working on this equipment. Have a qualified electrician 

install & 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 

 

 

 

 

 

Summary of Contents for 50CNC

Page 1: ...1 www r techwelding co uk Tel 01452 733933 Fax 01452 733939 PLASMA 50CNC INVERTER PLASMA CUTTER OPERATION INSTRUCTIONS Version 2016 1...

Page 2: ...2...

Page 3: ...reference This information can be found on data plate at rear of machine Product PLASMA 50CNC Serial No ___________________________________ Date of Purchase _____________________________ Where Purchas...

Page 4: ...Amps DC Equipment Limitations The R Tech PLASMA 50CNC is protected from overloads beyond the output ratings and duty cycle as per machine specifications with thermostat protection of the output coils...

Page 5: ...ons can result in excessive operating temperatures which can lead to plant failure Grinding Do not direct grinding particles towards the plasma cutter An abundance of conductive material can cause pla...

Page 6: ...and ground Earth 2 Keep the work and electrode leads as short as possible Tape the leads together where practical 3 Be sure the torch and earth leads rubber coverings are free from cuts and cracks th...

Page 7: ...AL SPECIFICATION AND MUST BEFITTED 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 connectin...

Page 8: ...o adjust pressure once correct pressure is obtained press down knob to secure 2 Air pressure input Screw supplied PCL fitting into regulator ensuring no air leaks You can also fit other connectors to...

Page 9: ...hen arc OK Front machine connections Fig 2 1 Earth Work piece connector Connect the earth lead to this connector Insert male connector into socket and twist clockwise until tight Secure other end of e...

Page 10: ...essure 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 When in the down position this...

Page 11: ...n be dangerous Keep your head out of fumes gases produced from welding Use ventilation or exhaust to remove fumes gases from breathing zone and general area WARNING WELDING SPARKS can cause fire or ex...

Page 12: ...ced by approximately 20 6 Hold torch in starting position on work and press torch switch and the high frequency will initiate the pilot arc and contact with the work piece and machine will automatical...

Page 13: ...0 3 5 0 0 1 7 1140 2070 40 3 0 2 70 PSI 20 3 5 0 0 1 7 1760 3240 4 0 3 70 PSI 30 3 5 0 1 1 7 1310 1310 5 0 3 70 PSI 30 3 5 0 2 1 7 1120 1120 6 0 3 70 PSI 30 3 5 0 2 1 7 940 940 50 1 0 2 70 PSI 20 3 5...

Page 14: ...is being cut all way through You are traveling too slow or cutting with too high amperage for work 11 It can take a while to get used to plasma cutting if never done before Experiment with settings on...

Page 15: ...burns 3 Unscrew the retaining nozzle 4 Remove the cutting tip 5 Check the condition of cutting electrode replace cutting electrode if tip is worn 1 2 mm and end is concave 6 Fit new cutting tip if re...

Page 16: ...orking 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...

Page 17: ...by pressing water release button on bottom of air regulator water trap Fit new consumables as per instructions earlier in this manual 5 Machine keeps overheating Warning light is lit on machine Check...

Page 18: ...0 Retaining Nozzle RT PT100 60500 Double Pointed Spacer RT PT100 60444 Swirl Ring RT PT100 60025 O Ring RT PT100 51190 41 Torch Head Machine Type RT PT100 09710 Complete 6M Machine Torch RT P100CNC 6M...

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