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1.2

 

Rear panel illustration and parts number reference 

 

Figure 6: Rear panel 

1. Circuit breaker 

The  function  of  circuit  breaker  is  to  protect  cutting  machine  by  automatic  trip  to 

turn-off power supply while the machine is overloaded or in failure. Normally, the circuit 

breaker flipped to upward means power-on. Use switch on the switchboard to start or stop 

cutting machine, avoiding using the circuit breaker. 

2. Input power cable 

It  is  4-pin  cable.  The  mixed-colored  wire  must  be  firmly  grounded,  the  rest  wires 

connect to corresponding 3-phase power supply. 

3. Compressed air filter 

Connect to air compressor by gas hose for reducing gas pressure and filtering moisture 

in  the  air.  Adjust  the  knob  to  alter  the  output  air  pressure  of    filter,  the  values  of  air 

pressure displaying at the air gauge are normally in the range of 0.6-0.8Mpa.The  water 

accumulated in the water trap should not touch on the filter element. Please let out the 

accumulated  water  in  time  by  releasing  the  valve  on  the  bottom.  Otherwise,  the 

accumulated water will enter the cutting torch, thus influencing arc starting and cutting 

performance. 

4. Specification plate 

5. Cooling fan 

Содержание WP-120A

Страница 1: ...in mind However your overall safety can be increased by proper installation and thoughtful operation in your part DO NOT INSTALL OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT And most importantly think before you act and be careful C V A N U G R A H D U T A N I A G A Jln Arief Rahman Hakim 51 Komplek Ruko 21 Klampis Blok D 1 Telp 031 5...

Страница 2: ...16 Index 1 Principle Technical data 1 2 Features Applications 5 3 Installation Guide 6 4 Operating Instruction 9 5 Repair Maintenance 12 ...

Страница 3: ... and anti fluctuating ability due to loop control of reasonable logic circuit design First the signals of the set parameters transmit into set circuit to adjust output current Secondly the feedback circuit amplifies output current to get feedback signal PWM circuit compares the set signals with feedback signals to determine output pulse width Finally driving circuit will control pulse to amplify p...

Страница 4: ...A 30 120 Open load V 345 Rated load volt V 128 Rated duty cycle 60 Air pressure for cutting torch MPa 0 45 Gas flow rate L min 250 Max cutting thickness for carbon steel mm 35 Optimum cutting thickness for carbonsteel 1 30 Dimension 576 297 557 Weight Kg 43 5 Insulated class of main transformer H Insulated class of output reactor B Table 1 Parameter Specification ...

Страница 5: ...19 2 Main circuit diagram WP120A Figure 3 Main Circuit Diagram of WP 120A ...

Страница 6: ...transformer LGK 100 3 1 0 D2 Fast recovery diode module DWC2F100N060S D3 Fast recovery diode module DWC2F100P060S L2 Current exchange inductor ZX7 400Ⅲ 5 2 0 T4 Transformer for ZKB QDB ATIG 500 3 1 8 F1 Fuse 2A 5 20 M Fan AK2072HB 220V single phase SW Thermal switch JUC 6F 70 close QDB Drive board ZX7 400Ⅲ 7 0 ZKB Main control board LGK 100 6 0 DF Electromagnet valve DF2 5 0 8MPa AC36 Switch KCD4 ...

Страница 7: ...c start Features and benefits HF inverter small size light weight Soft switch transform high efficiency Delayed post flow can protect plasma torch effectively Outstanding cutting quality with trim and slick edge Short circuit protection inside cutting torch HF arc starting easy to strike Non source power factor compensation technology high PF 2 cycle 4cycle operating modes provided Thermal protect...

Страница 8: ...where humidity or perspiration considerably reduces the skin resistance of the human body and the insulation properties of accessories Environments with adverse conditions do not include places where electrically conductive parts in the near vicinity of the operator which can cause increased hazard have been insulated 1 2 Installation Location Be sure to locate the welder according to the followin...

Страница 9: ...sition Removing fuses from fuse box or shutting off and red tagging circuit breaker or other disconnecting device 1 4 Power Supplier Requirement Input volt must be standard sine wave effective value 380V frequency 50Hz Unbalance degree of 3 phase volt must be no more than 5 Power supply Product type WP120A Power supply 3 phase AC380V 50Hz Min capacity Power network 38 5 KVA Generator 51 4 KVA Inpu...

Страница 10: ...4 Connection Chart for WP series 1 3 phase 380V power source 2 Gas hose 3 Air compressor 4 Cutting torch 5 Output cable 6 Workpiece The max gas pressure of optional air compressor should be 0 8 Mpa and gas flow rate be no less than 250L min Connect air compressor to inlet of air gauge on the rear panel of cutter Turn on air compressor to let gas pressure climb up to proper value for cutting Then t...

Страница 11: ...ting seam To Auto lock after successfully starting arc by pressing torch trigger then you can perform cutting by releasing the trigger When you press torch trigger again torch will stop cutting This mode is suitable for long cutting seam 3 Power on off indicator Indicating whether power source is effectively connected to power supply 4 Protection indicator lamp Cutting machine will automatically s...

Страница 12: ...ust be firmly grounded the rest wires connect to corresponding 3 phase power supply 3 Compressed air filter Connect to air compressor by gas hose for reducing gas pressure and filtering moisture in the air Adjust the knob to alter the output air pressure of filter the values of air pressure displaying at the air gauge are normally in the range of 0 6 0 8Mpa The water accumulated in the water trap ...

Страница 13: ...type cutting torch When cutting let the nozzle of torches touch workpiece then press the torch button to start arc ACUT100 andACUT120 cutting machine apply non contact type cutting torch When cutting keep a distance from 3 to 5 mm between nozzle and workpiece to start arc and allow no touch between nozzle and workpiece in the process of cutting 2 4 Usually cutting begins at the margin of the workp...

Страница 14: ...xially nozzle cover press the nozzle toughly 3 While in cutting avoid moving cutting torch too quickly in case burning out nozzle due to arc flame rebounding from non cut through workpiece base as well as moving too slow to influence cutting quality 4 While in cutting please keep air pressure in the range of 0 6 to 0 8Mpa Let out accumulated water in the compressed air filter timely 5 The machine ...

Страница 15: ...ked 3 Gas test Cutting switch is damaged 4 The output air pressure of air compressed filter is too high 1 Replace 2 Inspect gas way 3 Replace 4 Regulate pressure knob on the filter to reduce air pressure and release water valve After air pressure get down tighten up the valve 4 The cutting torch s button does not work 1 Button is damaged 2 Wire is broken 3 Control board is damaged 1 Replace 2 Conn...

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