iWeld CUT 50 IGBT Manual de usuario
CUTTING EDGE WELDING
USER’S MANUAL
IGBT inverter technology
plasma cutting power sources
CUT 50 IGBT
CUT 70 IGBT
EN
WARNING!
Welding and cutting is dangerous to the operator, people in or near the working area,
and the surrounding, if the equipment is not correctly operated. Therefore, the perfor-
mance of welding/cutting must only be under the strict and comprehensive obser-
vance of all relevant safety regulations. Please read and understand this instruction
manual carefully before the installation and operation.
• The switching of function modes is possibly damaging to
the equipment, while the welding operation is performed.
• Do disconnect the electrode-holder cable with the
equipment, after the performance of welding.
• A safety switch is necessary to prevent the equipment
from electric-leakage.
• Welding tools should be of high quality.
• Operators should be qualied.
ELECTRIC SHOCK: It may be fatal
• Connect the earth cable according to standard reg-
ulation.
• Avoid all contact with live components of the welding
circuit, electrodes and wires with bare hands. It is nec-
essary for the operator to wear dry welding gloves while
he performs the welding task.
• The operator should keep the working piece insulat-
ing from himself/herself.
Smoke and Gas generated while welding or cutting:
harmful to people’s health.
• Avoid of breathing the smoke and gas of welding or
cutting.
• Keep the working area in good ventilation
Arc light-emission: harmful to people’s eyes and skin
• Wear the welding helmet, anti-radiation glass and
work clothes while the welding operation is performed.
• Measures also should be taken to protect people in or
near the working area.
FIRE HAZARD
• The welding splash may cause fire, thus remove flam-
mable material away from the working place.
• Have a re extinguisher nearby, and have a ted re
person ready to use it.
Noise: Possibly harmful to peoples’ hearing.
• Surface noise is generated while welding/cutting, the
hearing aids is necessary in some cases.
Machine Fault:
• Consult this instruction manual.
• Contact your local dealer or supplier for further advice.
EN
12
INDEX
AN INTRODUCTION TO DC WELDERS 14.
MAIN PARAMETERS 15.
INSTALLATION 16.
OPERATION 17-18.
CAUTIONS 19.
MAINTENANCE 20.
EN
13
1. Introduction
First of all, thank you for choosing our cutting equipment and uses.
Cutting using advanced technology and a high-frequency inverter , high power IGBT
rectied current, and then by using the PWM output direct current makes it suitable
for high-performance work , greatly reducing the weight and dimensions of the main
transformer 30% increase in efciency.
The efciency of the machine up to 85% resulting in 30 % energy savings in comparison
with conventional transformer machines .
The cutting machine inverter technology for lighter , smarter and more efcient pre-
decessors . Double Inverter technology provides a square wave , which is straight ,
concentrated heat , cleaning makes them stronger and wider the arc , with excel-
lent quality.
Cutting machine gun has a proper length cable and hose connection for water cool-
ing .
In this cutting machine is suitable for industrial and professional use , complies with the
IEC60974 international safety standard requirements.
Warranty for one year after purchase of the product. The guarantee is only valid to the
original invoice and ticket validated date of purchase warranty! A machine with a
serial number, please make sure that the serial number and the warranty and the bill
is placed on the rst copy !
Please read and use this manual before installation and operation !
EN
14
The main parameter
EN
Parameters\Model CUT 50 CUT 70
800CUT50IGBT 800CUT70IGBT
Input power voltage (V) AC 220V +- 15% 50/60Hz AC 380V +- 10% 50/60Hz
Rated input current(A) 28,5 14,5
No-load voltage (V) 230 280
Output current scope (A) 10-50 20-70
Rated output voltage (V) 100 108
Load duration rate (%) 60 60
Efciency (%) 85 85
Power factor(Cosφ) 0,93 0,93
Arc striking method Contact Arc Striking HF
Recommended air pressure
(bar) 4,5 5,5
Air exhaust via air compressor
recommended (m3/min) 0,17 0,25
Insulation class F F
Housing protection class IP21S IP21S
Weight (KG) 9 21
External dimensions (mm) 410x170x320 555x218x355
15
EN
Workpiece
Pressure
reducing valve
Ground
IN Air duct
OUT
Ground
Distribution box
connected to 220V
Earth clamp
Positive output terminal
Connected to
the cutting gun
Cutting switch connector
Pneumo-electric output
2. Installation
The connection diagram of the cutter is shown above.
Be sure to use this welding machine with the specied cutting gun, earth clamp
together; otherwise, it will affect the welding performance and may damage the
machine.
• Connect the output terminal of thecompressor to the input terminal (IN) of
the pressure reducing valve via the air duct, and tightly connect the output terminal
(OUT) of the pressure reducing valve to the copper tube on the rear of this machine
via high-pressure leather hose.
• Connect the copper nut on the cutting gun with the pneumo-electric output
terminal on the front of this machine, and tighten this nut clockwise (to prevent gas
leakage); connect the rapid socket on the earth clamp with the positive output ter-
minal on the front panel of the cutter and tig hten the socket.
• Connect the switch plug on the cutting gun with the switch connector of
the cutting gun on the panel. Screw the electrode into the cutting torch to the end,
slightly tighten them with force and then properly install the nozzle and protection
cover in a proper order.
Important to set the correct air pressure before cutting. At low pressures the arc con-
dent but the molten material of the cutting gap is therefore more difcult to leave the
cut surface will not be smooth. At high air pressure in the ignition more difcult, but at
the cutting surface is smoother.
Use the machine parameter table given pressure setting!
16
3. Operation Instruction
3-1 Front Panel
EN
①O.HPOWER
70
A
20 2
S
15s
POST GA
2T
CUT70C IGBT
4T
CURRENT
③
④
PILOT ARC
②
⑥
⑦
③
ON
①
OFF
IGBT
CUT50C
O.H
②
④
POWER
50
A
10 210s
POST GAS
⑤
⑥
8
9
11
10
AC 220V
GAS IN
1 Digital panel meter
2Current adjusting knob
3Abnormity indicator
4Power indicator
5Power switch
6Post-blow adjusting knob
72T/4T switch
8Power incoming wire
9Fun
10 Grounding erminal
11 Gas inlet
17
- 2T/4T button: “2T” n is short welding, pressing button will power up when released, stop
power supply. The rst is the power button is pressed “4T” was and will remain so until the
next time you press the button.
- Given current : The cutting power within the specied range of the parameter table, the
corresponding value for the work must be adjusted. The current is adjustable and the
display shows.
- Gas after-ow time: workpiece oxidize due to heat and must be cooled by gas welding
completion of approx. To 10s, this button controls the pre-ow time.
EN
Air plasma cutting specs for low-carbon steel
Plate
thickness (mm)
Conduction
nozzle
aperture (mm)
Cutting
current (A)
Airow (L/min) Cutting
speed (M/min)
6 ø 1 30 8 0,24
10 ø1,2 40 70 0,3
20 ø 2 100 70 0,35
30 ø 2,5 125 70 0,3
Air plasma cutting specs for stainless steel
Plate
thickness (mm)
Conduction
nozzle
aperture (mm)
Cutting
current (A)
Airow (L/min) Cutting
speed (M/min)
6 ø 1 30 8 0-2,5
10 ø 1,2 40 70 0-2,5
20 ø 2,5 100 70 0-2,0
30 ø 3 125 70 0-2,0
Air plasma cutting specs for aluminum and aluminum alloy
Plate
thickness (mm)
Conduction
nozzle
aperture (mm)
Cutting
current (A)
Airow (L/min) Cutting
speed (M/min)
6 ø 1,2 40 10 0-30
10 ø 1,5 100 70 0-30
20 ø 2,5 125 70 0-25
30 ø 3,5 125 70 0-25
3-2. Working Parameters of Cutter
18
EN
4. Precautions
4-1. Workspace
1. welding equipment free of dust, corrosive gas, non-ammable materials, up to 90%
humidity for use!
2. Avoid welding outdoors unless protected from direct sunlight, rain, snow, work area
temperature must be between -10 ° C and +40 °.
3. Wall to position the device at least 30 inches away.
4. well-ventilated area to perform welding.
• When preparing for cutting, hold the cutting gun (the cutting gun does not contact
the workpiece for a model of non-contact arc striking) and press the gun switch; at
this time, plasma arc will eject from the nozzle hole, indicating the electrode, nozzle,
etc are installed correctly. If there is no plasma arc or only weak plasma arc ejected
from the nozzle hole, it indicates the electrode and nozzle are installed improperly,
so reinstallation is necessary after power-on.
• When cutting starts, the outer edge of the nozzle hole should be aligned to the edge
of the workpiece. Press the cutting torch switch to strike the arc; if the arc is not
struck, release the switch and press it again. After successful arc striking, move the
cutting torch at a constant speed to conduct normalcutting (the moving speed
should vary from different plate thicknesses; if the sparks upturn, it indicates the mov-
ing speed is too fast and the workpiece is not cut through, and the moving speed
should be slower. If the sparks splash vertically to the workpiece, it indicates the mov-
ing speed is too slow and the adhering slags may increase, and the speed should
be improved properly.
• At the end of the cutting, when the workpiece will be cut off, the cutting speed
should be slowed down, release the cutting torch switch to complete the cutting.
• Splashes adhering to the nozzle surface will affect the cooling effect of the nozzle,
so they should be removed in time, and dust and splashes on the cutting gun head
should be removed regularly so as to maintain a good heat emission effect.
• The cutting torch rack ensures the distance from the nozzle to the plate(Tianzong
Gun). Never remove the cutting torch rack during cutting; otherwise the normal dis-
tance from the nozzle to the plate can not be guaranteed, thus causing the nozzle
to touch the plate so as to lead to the gun burned.
• Replace the electrode and nozzle.
In case of the following cases, be sure to replace the electrode and nozzle in time.
1) above 1.5mm electrode consumption depth;
2) irregularly deformed nozzle aperture;
3) obviously slower cutting speed and green ames occurring for arc
4) difcult arc striking;
5) Slanting kerf or widening kerf
3-3. Notices to Cutting
19
4-2 . Safety requirements
Welding provides protection against overvoltage / overcurrent / overheating. If any
of the above events occurs, the machine stops automatically. However, over-
stress damage to the machine , keep the following guidelines :
1. Ventilation . When welding a strong current going through the machine , so the
machine is not enough natural ventilation for cooling . The need to ensure ad-
equate cooling, so the distance between the plane and any object around it at
least 30 cm . Good ventilation is important to normal function and service life of the
machine.
2. Continuously , the welding current does not exceed the maximum allowable value.
Current overload may shorten its life or damage to the machine .
3. Surge banned ! Observance of tension range follow the main parameter table .
Welding machine automatically compensates for voltage , allowing the voltage
within permissible limits of law. If input voltages exceed the specied value , dam-
aged parts of the machine .
4. The machine must be grounded! If you are operating in a standard, grounded
AC pipeline in the event of grounding is provided automatically . If you have a
generator or foreign , unfamiliar , non-grounded power supply using the machine
, the machine is required for grounding connection point earth to protect against
electric shock .
5. Suddenly stopping may be during welding when an overload occurs or the ma-
chine overheats . In this case, do not restart the computer , do not try to work with
it right away, but do not turn off the power switch , so you can leave in accord-
ance with the built-in fan to cool the welding machines .
5. Maintenance
1. Remove power unit before maintenance or repair!
2. Ensure that proper grounding!
3. Make sure that the internal gas and electricity connections are perfect and
tighten, adjust if necessary, if there is oxidation, remove it with sandpaper and then
reconnect the cable.
4. Hands, hair, loose clothing should be kept away under electric parts, such as wires,
fan.
5. Regularly dust from the machine clean, dry compressed air, a lot of smoke and pol-
luted air to clean the machine every day!
6. The gas pressure is correct not to damage components of the machine.
7. If water would be, for example. rain, dry it in the machine and check the insulation
properly! Only if everything is all right, go after the welding!
8 When not in use for a long time, in the original packaging in a dry place.
EN
20
Este manual sirve para los siguientes modelos
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