Frequently Asked Questions
1. Q: has opened the air switch on the power supply, but the power indicator is not on what is the reason?
A: A: welding power source input is added 3 ~ 380 v.
B: air switch is open, if cooling fan rotation.
C: at both ends of the indicator for DC voltage.
2. Q: a power indicator, but can't welding is what reason?
A: A: check the power supply insurance, click on the torch to check whether the wire feed.
B: output cable connection is normal.
C: back if there is a light output is measured with a multimeter.
3. Q: sudden stop welding (arc) output is what reason?
A: A: abnormal indicator is displayed on.
B: presence of welding wire with conductive mouth sticking phenomenon? For the top silk?
C: the wire feeding wheel with the same wire diameter or do you have any serious wear and tear?
D: the wire feeding tube jam?
4: q: weld porosity have what reason?
A: A: open the torch gas send out.
B: check whether the protective atmosphere is good
C: check whether the workpiece is rust or oil
D: check if there is water in the welding torch
E: check whether the wire feed wheel oil pollution is serious
5: q: output to adjust (no-load voltage normal) what is the reason?
A: A: check is adjust current or voltage adjustment
B: check current potentiometer with voltage potentiometer are in good condition
C: check whether the control cable is lack of phase
6: q: brittle arc or conductive mouth what reason?
Answer: A: brittle arc, check the wire diameter is consistent with the size of the conductive mouth, wire feeding hose are in good condition
B: stick conductive mouth, decrease the welding voltage test weld
C: conductive mouth, wire feed tube
7: q: in use, more than the duty cycle and the rated power output, abnormal indicator.
A: A: turn off the torch switch, the power switch is still placed in the "open" position (cooling fan rotation) standby, when the internal temperature of the welding power source to A specified value, will start automatically, and can start operation.
B: after the light is off, don't immediately start homework and waited for more than 20 minutes, and let the cooling fan has been turning, make; Welding power source are fully cooling inside
C: start operation, be sure to pay attention to reduce construction conditions (shorter welding time or reduce the output current) to use, if under the same conditions continue to work, will cause the same fault again, lead to welding machine to stop working, and assignments.
D: if repeated in more than the duty rate and the rated output under the state of use, can reduce the insulation of the internal components and shorten the service life, and then welding machine faults and burning accident.
8: q: welding parameter is normal, but there arc unstable parts should check when
A: A: whether the wire feed wheel wear, if wear will change
B: whether the wire for the pressure, if there are skid phenomenon, to adjust the pressure of pressure regulating handle
C: conductive nozzle aperture hair, wear or damage, should be replaced
D: all if there is a loose connection plug
9: q: other function is normal, but the car can't walk
A: A: check whether the control box side fuse FUSE1 is disconnected, disconnect the replacement.
B: bad speed control board, replace the control board
10: q: press the start button, the power supply hum, no arc, even the power shut down?
Answer: the wire due to the short circuit with thick front and artifacts with larger area, wire to resist the power of the workpiece is too big, this kind of situation will cause too much electricity, power supply hum, even the state of over-current protection and shut off the power, the solution in the manual into silk, reduce wire to resist the pressure of the workpiece, see the nose up appropriate annealing silk silk, make the welding wire is coincided with the workpiece short circuit and power is not very big
11: q: air plasma cutting machine service life of the electrode?
Answer: the electrode is easy to small consumption throughout the air plasma cutting system of one of the parts, and it has a limited service life, when the gas in the middle of the electrode materials consumed 2.5 3.0 mm, must change in time, and otherwise likely to burn out the nozzle, gas core and other parts, even burning torch.
12: extending the service life of the cutting machine which should pay attention to what time?
A: 1. Do not break the cutting torch
2. Do not put the torch and its cable is placed on the board that overheating
3. Check the air compressor and installed on the cutter on the filtering pressure reducing valve mouth water
4. Compressed air contains water will damage the cutting torch, should use do not contain moisture and oil content of compressed air, checking the filtering pressure reducing valve installed on the cutter's mouth water.
5. Replace the electrode is used when accompanied with special spanner.
13. The car and the welding power source output terminal connection?
A: 1. The connection end of the car in control box on the back of the shunt.
2. Dc reverse when the car should be connected to the power of positive, artifacts are connected to the power of the cathode
3. The positive dc solution when the car should be connected to the power of the cathode, artifacts are connected to the power of the anode
14. When lifting beam should be pay attention to?
A locking arm of adjustable set the handle and the cross arm positioning is adjustable to set the handle, do not let go at the same time, in order to prevent the cross arm and head suddenly fall.
15. Press the start button, the car welding extremely unstable what reason be?
Answer 1. The welding power supply mode switch position (constant current/constant voltage) and the car the location of the toggle switch on the main control board do not match, master plate toggle switch to the right for constant current mode, the car for variable speed wire feeding, the corresponding mode switch on the power supply should be allocated to the constant current position, when using constant pressure, mode switch on the power supply to the constant pressure position, the car on the main control board should dial to the left toggle switch, at this time is constant.
16. The car won't start what reason be?
A: 1. Check whether the car shell contact with electrically charged objects, when when there is a voltage difference between casing and the power of the chassis, the car since the protection.
2. The main control board bad, need to change.
3. Bad need to change control board.
17. In order to give full play to the performance of the machine, ensure the safety of every operation, daily maintenance is pay attention to what matters?
Answer: daily maintenance, welding torch, wire feeding device in various parts of wear, deformation, pore blockage, in turn, check the following parts, if necessary to deal with some spare parts for descaling, replacement, etc., when the replacement parts to keep the original machine performance, be sure to use the company the integrity of the welding machine parts. Written content
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