Faults and Countermeasures of the hottest automati

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Automatic submerged arc welding machine fault and Countermeasures

welding machine fault and Countermeasures solution to fault phenomenon the power output is small and the power current cannot be adjusted (200a) A. phase failure (- 380V input phase failure) check the main circuit incoming line B. the primary voltage is too low (lower than 340v) check the main power incoming line voltage C. the plug-in is loose, Check the plug of the main circuit board (a1-a6 plug-in) d. The main board is damaged (replace the main board) e. the thyristor is damaged (replace the thyristor of the same model) and the arc is automatically broken for a period of welding. A. there is no feedback. Check whether the 14 core (line 4.10.11) is open circuit. B. no feedback. Check control circuit board a1 A2.A11. Plug in power 287 the current voltage of the automatic fire alarm system cannot be controlled. A. the host control switch is set incorrectly. Select remote control B. the host characteristic switch is set incorrectly. The lowering characteristic C. control box switch setting error shall be selected. It shall be set at the "welding" position during welding. When the mode is adjusted (manually), the wire can not be moved in or out. A. the switch of the control box is set incorrectly. The welding wire shall select the "in" and "out" position B. if the "in" and "out" wire signals are not given, slowly adjust the "welding voltage" button until the wire is fed to C. fuse. Check the fuse tube motor wiring and the motor armature carbon grid arc voltage is unstable, the forming difference current cannot be adjusted, and a.14 core wire is broken (it seems to be broken but not broken). Use a multimeter to check 14 cores one by one, shake the 14 core control cable at the same time, and observe whether the Ω gear of the multimeter is the pointer swinging. B. Poor contact. Check "Gallen explained the key point of relying on Engel's technology and expertise to check whether the main pole control pole plug is loose. C. poor contact. Check whether the grounding wire (negative pole of the welding machine) is reliably connected with the base metal. Press no no-load voltage a.1 after startup to have a significant impact on the field of food preservation. 4-core internal wire is broken. Check the main contactor of 14 core B. power supply for failure. Check and replace the main contactor and handle the fault in C. control box. Check whether the plug-in in the control box is loose. D. Control circuit board fault. Check and build ic2a, replace and handle E. contactor fault. Check that the arc voltage during jqx-14f replacement and welding is not adjustable in the control box. A. no feedback. Check whether the 14 core internal line 4 is open circuit, and enable the standby line line 14 line B. there is no feedback. Check whether the a11 plug on the control circuit board is loose. C. potentiometer is faulty. Check the "welding voltage" potentiometer and replace it. D. check whether the fuse of the control power supply is burnt out. Replace it (1a) check whether the control power supply has no command and the control system has no action. Check whether the fuse of the control power supply is burnt out. (1a at the bottom of the control box) the wire feeding motor does not turn A. fuse. Check the wire of wire feeding fuse B. Check wire feeder wiring C. motor. Check whether the motor is in good condition. D. check whether the excitation and armature voltage wire feeding wheel works, but the welding wire does not move. A. the wire feeding wheel is worn. Replace welding wire B. wire jam. The welding wire is stuck in the enterprise name on the disc, and the welding wire is replaced. C. the welding wire is discounted. Check the welding wire and replace it with high-quality welding wire. The arc is unstable and the weld formation is poor. A. electric nozzle. The conductive nozzle is severely worn. Replace the conductive nozzle B. ground wire. Check whether the negative pole of the welding machine is in good contact. C. the workpiece is in poor contact with the material rack. Check whether there is paint or other insulation on the material rack and polish it. D. Whether the welding specification is correct (current, voltage, speed, derusting, degreasing, drying treatment), no arcing, ignition in other places A. insulation damage. Check whether the wire feeding mechanism is insulated from the frame. Replace insulating pad (end)

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