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4.4.3    Discharging the Current after a test fire (the Stud is not welded) 

  

WARNING – ELECTRIC SHOCK CAN INJURE OR KILL! 

 

The gun and ground circuits are electrically charged or ”hot” when The Studhorse is switched on 
and the gun trigger is depressed.  Do not touch these ”hot” parts with bare skin or wet clothing 
before the discharging to ground.  The electrical charge in live in the gun for approximately 20 
seconds after the trigger is pulled on a ”dry fire”. 
 
Water, moisture and human skin are electrical conductors and complete an electrical circuit to 
ground (earth) allowing current to easily flow.  Never weld in wet clothing, gloves or footwear.  
Always protect yourself from electricity using dry insulation 
 
Never leave an energized machine unattended and always check the condition of cables, 
connections and protective gear. 
 
Always keep one hand free when testing an energized machine and unplug equipment before 
cleaning or servicing. 
 
Please review and follow all safety precautions in this manual before using the equipment. 

4.4.4  Responding to the 5 Zones Thermal Protection Control 

 

 
The display will begin blinking if any component is overheating.  The operator must  stop welding 
Studs and allow the power source to cool down. This may take 3 minutes or more depending on 
which component is overheated. The following components monitor the internal temperature in 
The Studhorse welder: 

The 5 Zones of termal protection are incorporated to protect the machine from over temperature 
and extend the useful life of the machine.  The feature also reduces the risk of costly repairs. 

The following zones are protected in your Studhorse power source: 
 

Main Transformer  

If overheating occurs, wait 1 minute before restarting.  

 

Main Inductor  

If overheating occurs, wait 7-8 minutes before restarting. 

 

Output Capacitor 

The Output Capacitor may overheat and shut down the welder.  If this occurs, wait 
10 minutes before restarting.  The temperature sensor will protect the output 
capacitor. 
 

Input Capacitor: 

Should one phase be lost when welding with three-phase input power, current to 
the Input Capacitor could increase causing it to potentially overheat or be 
destroyed.  Wait 10 minutes

 

before restarting the welder. 

 

Fan Motor:  

Some operation with restricted airflow will overheat the fan motor. Wait 10 minutes 
before restarting the welder. 

Содержание DT1200i

Страница 1: ...OTEK Birkedam 10 C DK 6000 Kolding Denmark Tlf 45 7550 5666 Fax 45 7550 4795 sales dabotek com www dabotek eu DABOTEK DT1200i P N 101201 1200 Amp Drawn Arc Stud Welder OPERATING MANUAL REVISED MARCH 2...

Страница 2: ...t is in conformity with the requirements of the Low Voltage Directive 73 23 EEC and Machinery directive 89 392 EEC 91 368 EEC 93C 133 04 93 68 EEC Compliance Certified by Goran Hedberg Design Engineer...

Страница 3: ...g and Unpacking the Welder 12 3 2 Selecting a Location 12 3 3 Selecting Suitable Supply Cables 12 3 4 Connecting Input Power 12 3 5 Fuse and Circuit Breaker Ratings 13 3 6 Output Connections and Stud...

Страница 4: ...the inverter design Figure 8 1 28 8 2 Main Circuit Diagram 29 8 3 Front Panel Drawing with part references 30 8 4 Rear Panel Drawing with part references 31 8 5 Chassis Plate Drawing 1 with part refer...

Страница 5: ...e and is limited to defect in materials or workmanship The original purchaser must furnish notice of defect or failure to DABOTEK Welding Equipment or one of DABOTEK s authorized repair centers using...

Страница 6: ...mer protected and coated to resist corrosion Output board encapsulated in repair friendly material to eliminate the failures Control board coated to protect against salt water arc over Input board coa...

Страница 7: ...tors must take caution in the method and manner of handling or using the machine when this symbol is displayed 1 2 Safety Precautions Do not install operate or repair The Studhorse welding equipment w...

Страница 8: ...energized supply line before moving a welding power source 9 Always be sure the work cable makes a good electrical connection with the metal being welded The connection should be as close as possible...

Страница 9: ...oatings paper etc 2 Hot sparks or hot metal can fall through cracks or crevices in floors or wall openings and cause a hidden smoldering fire Make certain that such openings are protected from hot spa...

Страница 10: ...to expose themselves to the rays of the electric arc or hot metal 3 Wear flameproof type gloves heavy long sleeve shirt cuff less trousers and a welding helmet or cap for hair protection to protect a...

Страница 11: ...create the suitable welding characteristics The auxiliary transformer steps down the input voltage to 48V center tapped This transformer powers the cooling fan and the control logic 2 3 SAFETY STANDA...

Страница 12: ...l power Use care against toppling over if the machine is placed on a tilted surface or plane It is important that the machine be located in an open area where air can circulate freely through the fron...

Страница 13: ...7 Stud Guns There are several manufacturers of Stud welding guns A Stud gun is shaped to fit in the hand in the shape of a handgun and is a semi automatic stud welding tool Guns vary in design connec...

Страница 14: ...eld power and time adjustment short circuit protection automatic line voltage protection and 5 zones of thermal protection 4 3 Operational Controls and Settings also refer to Figure 4 1 4 3 1 Circuit...

Страница 15: ...t will be 1100 Amps Normally the difference between set and measured is less and only one stud is needed for tuning in process The measured current may fluctuate up to 5 60 Amps 1200 Amps dependent on...

Страница 16: ...ER ON INDICATOR 4 3 1 4 4 4 WELDING CURRENT CONTROL 4 3 3 4 4 1 STUD TIMER CONTROL 4 3 3 4 4 1 CIRCUIT BREAKER POWER ON OFF 4 3 1 OUTPUT TERMINALS 3 6 INPUT POWER CORD 12 FT 3 65m LONG 3 4 GUN CONTROL...

Страница 17: ...m 550A 0 250 3 8 10mm 650A 0 350 1 2 12mm 850A 0 550 5 8 16mm 1200A 0 700 1 If 5 8 inch studs are to be welded set the current timer to 1200 Amps and the timer setting to 0 7 Seconds 2 Shoot weld stud...

Страница 18: ...rmal Protection Control The display will begin blinking if any component is overheating The operator must stop welding Studs and allow the power source to cool down This may take 3 minutes or more dep...

Страница 19: ...uide to visually inspect welded studs to determine the quality of weld The correct relationship between the Lift Plunge Time and Current is essential in order to obtain good weld results Operators sho...

Страница 20: ...20 5 1 Visually Inspecting Welded Studs continued...

Страница 21: ...21 5 1 Visually Inspecting Welded Studs continued...

Страница 22: ...22 5 1 Visually Inspecting Welded Studs continued...

Страница 23: ...23 5 1 Visually Inspecting Welded Studs continued...

Страница 24: ...ing parts other than the fan in the power source basic preventive maintenance only involves keeping the welder clean and free from metallic dust Periodically you should ask your Authorized Service Cen...

Страница 25: ...educe duty cycle 1b Make sure that intake and exhaust vents are not blocked In heavy dust areas clean unit out once per month with compressed air B Circuit breaker trips 1 Over voltage or spikes 2 Inc...

Страница 26: ...air 1 Clean surface 2 Read gun manual for procedure 3 Read gun manual for procedure G Display has fluctuating amperage levels H Display is flashing 1 Unit is self calibrating and will complete calibra...

Страница 27: ...of type X to be allowed to be connected between phases and also to comply with the European community CE norms The type X capacitors are connected to a common point making it a virtual neutral This p...

Страница 28: ...ter Design The inverter function is perhaps easiest understood using the simplified block diagram below AC INPUT FIGURE 8 1 RECTIFIER INVERTER MAIN TRANSFORMER RECTIFIER OUTPUT FILTER CONTROL BOARD AU...

Страница 29: ......

Страница 30: ......

Страница 31: ...1 of 1...

Страница 32: ...1 of 1...

Страница 33: ...1 of 1...

Страница 34: ...1 of 1...

Страница 35: ...001 FAN ASSY 15 011216 001 FAN BLADE 17 011220 002 INDUCTOR OUTPUT 18 011230 001 INDUCTOR MAIN w PTC 19 011241 001 INDUCTOR COMMUTATING FRONT 20 011251 001 INDUCTOR COMMUTATING REAR 21 011272 001 TRAN...

Страница 36: ...1 CLAMP OUTPUT CAPACITOR 65 017102 003 CLAMP INPUT CAPACITOR w PTC BOARD 66 017110 001 BRACKET MOUNTING TRANSFORMER 67 018500 001 JACK OUTPUT DINSE FOR PLASTIC PANEL 68 018500 005 JACK OUTPUT DINSE FO...

Страница 37: ...CAMLOCK WA1200 021 EXTENSION CABLE FOR REMOTE 32FT WA1200 031 WORK CLAMP HEAVY DUTY w 10FT 2 0 CABLE CAMLOCK WAP1200 011 CONNECTOR CAMLOCK MALE FOR CABLE WAP1200 012 CONNECTOR CAMLOCK FEMALE FOR CABL...

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