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A-5                          INSTALLATION                                      A-5 

 

Using fuses or circuit breakers smaller than 
recommended may result in "nuisance" shut-off 
from welder inrush currents even if not welding at 
high currents.   

1Also called "inverse time" or "thermal/magnetic" circuit 
breakers; circuit breakers which have a delay in tripping action 
that decreases as the magnitude of the current increases.   

 

INPUT RECONNECT PROCEDURE   

On multiple input voltage welders, be sure the 
machine is connected per the following instructions 
for the voltage being supplied to the welder.   
Failure to follow these instructions can cause 
immediate failure of components within the welder 
and void machine's warranty.   
Multiple voltage models are shipped connected for 
the highest voltage. To change this connection refer 
to the following instructions.   

 

 

  ELECTRIC SHOCK can kill.   

  Turn the input power OFF at the 
disconnect switch or fuse box 
before working on this equipment.   

. Have a qualified electrician 
install and service this 

equipment.  
. Turn the input power OFF and unplug the 
machine from the receptacle   
before working on 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 hot parts.   
. Machine must be plugged into a receptacle 
that is grounded according to the National 
Electrical Code and local codes.   
. Do not remove or defeat the purpose of the 
power cord ground pin.   

RECONNECT PROCEDURE   

The Inverter machine auto reconnects to either 
115V or 230V supply.   
Fuse the input circuit with time delay fuses or delay 
type1 circuit breakers. Using fuses or circuit 
breakers smaller than recommended may result in 

nuisance

  shut-offs from welder inrush currents 

even if not welding at high currents.   
The Inverter machine is recommended for use on 

an individual branch circuit.   
1Also called 

inverse time

 or 

thermal/magnetic

 

circuit breakers.   
These circuit breakers have a delay in tripping 
action that decreases as the magnitude of the 
current increases.   
 

3x208V/480V INPUT   

The equipment is provided with a    cable, 6.6ft.(2m) 
in length . 
The Inverter machine performs best when 
connected to 3x480VAC inputs. This input allows 
full output of the machine (320 amps). 

 

 
 

   
 

 

. Failure to wire as instructed may cause 
personal injury or damage to equipment. 
To be installed or checked by an 
electrician or qualified person only.   

In all cases, the green or green/yellow grounding 
wire must be connected to the grounding pin of the 
plug, usually identified by a green screw.   
Attachment plugs must comply with the Standard 
for Attachment Plugs and Receptacles,.   
The product is considered acceptable for use only 
when an attachment plug as specified is properly 
attached to the supply cord.   
For use on engine drives, keep in mind the above 
input draw restrictions and the following precaution.

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for Digi-Tig320ACDC

Page 1: ...MACHINE Suitable for 3x208V or 3x480V Operators s Manual Safety Setup and General Use Guide REV 2 0 00140 16 Issue Date May 1 9 2016 Manual No 0 1530 EMPRESAS CARBONE S A Calle 5ta Rio Abajo Panam Pan...

Page 2: ...erformance Should you have an issue or question concerning your unit please contact performance technical support available through the main company headquarters available in your country For best ser...

Page 3: ...________ Where Purchased _____________________________ Whenever you request replacement parts or information on this equipment please always supply information you have recorded above This product is...

Page 4: ...e information please contact our Support The warranty does not cover improper use maintenance or consumables Do not attempt to alter or defeat any piece or part of your unit particularly any safety de...

Page 5: ...tection is available exclude them from the work area Even brief expo sure to the rays from the welding arc can damage unprotected eyes Always wear hearing protection because welding and cutting can be...

Page 6: ...s nose or throat are signs that you need to increase ventilation Stop immediately and relocate work if necessary until adequate ventilation is ob tained Stop work completely and seek medical help if i...

Page 7: ...materials including rags and spare clothing away from area Keep all flammable fuels and liquids stored separately from work area Visually inspect work area when job is completed for the slightest trac...

Page 8: ...pability B 2 Limitations B 2 Control Panel B 3 Controls and Settings 2 Step and 4 Step Tig Sequence B 3 B 6 Operating steps B 7 Welding in Tig mode B 7 Welding Polarity B 7 DC Electrode Negative Polar...

Page 9: ...usting Range 10 320A SP AC balance 10 90 AC Square Wave Frequency 30 250Hz AC TIG Rated Duty Cycle 35 Current Adjusting Range 5 320A DC TIG Rated Duty Cycle 35 Peak Current 5 320A Base peak Current ra...

Page 10: ...1 National Electric Code Use a Super Lag type fuse or circuit breaker with a delay in tripping action Models with NEMA 6 50P plug may be used with a 50 amp protected 6 50R receptacle or with a maximu...

Page 11: ...blems STACKING The machine cannot be stacked TRANSPORT UNLOADING Never underestimate the weight of the equipment Never make the cargo pass or leave it suspended over people or things Neither let the e...

Page 12: ...to an earth ground close to the work clamp using one of the following methods a A metal underground water pipe in direct contact with the earth for ten feet or more b A 3 4 19mm galvanized pipe or a 5...

Page 13: ...g to the National Electrical Code and local codes Do not remove or defeat the purpose of the power cord ground pin RECONNECT PROCEDURE The Inverter machine auto reconnects to either 115V or 230V suppl...

Page 14: ...per procedure on grounding the work clamp and work piece SHIELDING GAS CONNECTION Obtain the necessary inert shielding gas usually argon Connect the cylinder of gas with the pressure regulator and flo...

Page 15: ...der electrically hazardous conditions such as welding in wet areas or on or in the workpiece FUMES AND GASES can be dangerous Keep your head out of fumes Use ventilation or exhaust at the arc or both...

Page 16: ...s many industry standard items such as TIG torches adapted for Twist Mate hoses PROCESS LIMITATIONS The Precision TIG machines are not recommended for arc gouging due to it s limited output capacity a...

Page 17: ...er 16 output Ground clamp 17 argon out 18 argon arc control or remote control 19 Amp Adjustment slector remote control panel pedal finger torch 20 power switch 21 argon inlet 22 power supply 23 safety...

Page 18: ...e presettable The default start current is 15 amps and the default upslope time is 0 2 seconds 2 Release the Arc Start Switch to stop welding The machine will now decrease the output current at a cont...

Page 19: ...ntrol knob is used increase or decrease parameter values To increase adjustment speed push in on the knob while turning 15 output Electrode Connection Positive For quick disconnect system using Twist...

Page 20: ...EN50199 EN60974 10 international standards and contains the following information a Manufacturer s name and address b Trademark c Model No Serial number The welding power source comprises a frequency...

Page 21: ...on with the output and remain on continuously until the remote control is released WELDING POLARITY DC Electrode Negative Polarity Direct Current Straight Polarity see FIGURE B 4 While Welding there...

Page 22: ...gas Considering the fluidity of molten copper the use of backup support may prove useful FILLER MATERIAL In order to avoid the oxidation of the molten material filler materials containing phosphorus...

Page 23: ...2 4 Up to MAX A Up to 160 A Up to MAX A 13 17 6 8 11 15 5 7 1 8 3 2 X Up to MAX A X 15 23 7 11 11 15 5 7 Tungsten electrodes are classified as follows by the American Welding Society AWS Pure EWP gree...

Page 24: ...aces a lot of heat on the tungsten In a balanced wave where both EP and EN are equal in time length 50 penetration is reduced and over cleaning results in wide etch lines running parallel to the side...

Page 25: ...l and service this equipment Turn the input power off at the fuse box disconnect or unplug supply lines and allow machine to sit for five minutes minimum to allow the power capacitors to discharge bef...

Page 26: ...ator may have to turn the cur rent control up and depress the Ampcontrol approximately 1 4 of the way down Depressing the Ampcontrol to its minimum position may not start the arc Also if the current c...

Page 27: ...B 13 OPERATION B 13...

Page 28: ...B 14 OPERATION B 14...

Page 29: ...B 15 OPERATION B 15...

Page 30: ...the power switch is turned on 5 Turn the power switch to ON 6 Adjust the Current Control to the desired amps 7 Strike an arc and weld NOTE When the MMA TIG switch is set to MMA the output is always on...

Page 31: ...nd automatic amp response needed to maintain the arc when voltage falls below the threshold 6011 Cellulose electrodes may require more arc force control than other rods but each brand and size will we...

Page 32: ...quire no maintenance 7 SPARK GAP ADJUSTMENT The spark gap 020 5mm is set at the factory to a gap of 0 015 inches 0 4mm See Figure D 1 This setting is adequate for most applications Where less high fre...

Page 33: ...This column describes possible symptoms that the machine may exhibit Find the listing that best describes the symptom that the machine is exhibiting Step 2 POSSIBLE CAUSE The second column labeled PO...

Page 34: ...duty cycle Allow the unit to run until the fan cools the unit and the yellow light goes out Machine does not respond no gas flow no high frequency and no open circuit voltage when arc start switch or...

Page 35: ...ignificantly when AC Balance control knob is set near or at max penetration or when Output control is set near or at full output 1 Input power to machine doesn t have sufficient capacity Try changing...

Page 36: ...2 Tungsten not sharp when welding in DC mode 3 Gas shielding may be insufficient Increase gas flow reduce tungsten stick out beyond gas cup 4 Check for contaminated gas or leaks in the gas line torch...

Page 37: ...k Spark Gap operation and setting 0 5mm High frequency spark is present at tungsten electrode but operator is unable to establish a welding arc Machine has normal open circuit voltage refer to Technic...

Page 38: ...your local welder gas distributor When AC TIG welding the arc is erratic and there is a loss of cleaning of the work piece 1 Tungsten electrode may be too small for process Use a larger diameter tung...

Page 39: ...er diameter electrode 2 Arc too short Excessive spatter 1 Long arc 2 High current Craters 1 Fast movement of the electrode away from piece Inclusions 1 Poor cleanliness or distribution of the Welding...

Page 40: ...1 NOTE This diagram is for reference only It may not be accurate for all machines covered by this manual If the diagram is illegible write to the Service Department for a replacement Give the equipme...

Page 41: ...ustable foot control 1 Adjustable finger control torch 1 optional accessory Operation instructions 1 Certificate of quality 1 No Certificate of quality Name of product AC DC TIG WELDING Type of produc...

Page 42: ...electrically live parts or electrode with skin or wet clothing Insulate yourself from work and ground No toque las partes o los electrodos bajo carga con la piel o ropa moja da Aislese del trabajo y...

Page 43: ...e Be und Entl ftung des Arbeitsplatzes Mantenha seu rosto da fuma a Use ventila o e exhaust o para remover fumo da zona respirat ria Turn power off before servicing Desconectar el cable de ali mentaci...

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