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The capacity of the bucket capacitor is small, and the gap between the aluminum plate of the capacitor is adjusted to increase the capacity of the capacitor.
6. The anode current rises rapidly to the larger value when it is empty, and the machine appears protection action, and the protection indicator lights up.
(1) fire inside the resonant bucket. Remove dust or foreign objects.
2. The barrel side capacitor is fired. Clean the aluminum plate and repair the ablative place.
The connection of the resonant bucket and the casing is bad. Remove rust, tighten the screw connection.
(4) there is a touch connection between the conductive belt drawn from the resonant bucket and the capacitive aluminum plate on the side of the cavity or the bucket. Adjust the position of the conductive band.
The aluminum cover of the resonant bucket is not in contact with the cavity. Remove the polished with emery cloth back and tighten the screws.
The electron tube heater bypass capacitor circuit. Change.
The gate capacitance circuit breaker. Change.
The gate connect missed. Tighten the screws.
7. The anode current rises rapidly and the protection action occurs when the welding is connected, and the protection indicator lights up.
(1) mold fire. Find out the reason for exclusion (see 12).
The setting of the homology is too high. Bottom setting value.
8. The anode current rises slowly at the time of welding. The capacity of the bucket capacitor is large, and the gap between the aluminum plate is reduced so that the capacity of the capacitor is reduced.
9. The brightness of the tube is obviously weakened with the increase of the output power, and the AC contactor can not be firmly absorbed. The power supply voltage is too low or the power line is too thin.
10, the luminance of the electron tube is obviously lower than that of the original. Power line electronic lamp or poor contact tube aging, eliminate bad contact or replace the electronic tube.
11, welding AC contactor bounce can be closed, or pull in there will be obvious noise.
(1) the bridge type high voltage rectifier has one or two groups of breakdown short circuits. Change.
(2) high voltage direct current channel high voltage capacitor breakdown or line has connection with the casing. Replace high voltage capacitor or eliminate short circuit fault.
The high voltage transformer is short circuited. Change.
12. When melting, the mold often fires.
The mold has a burr or too dirty. A polishing or cleaning mold.
The die is not leveled. Adjust the mold.
(3) the damage of the insulating material of the lower mold or the mark of fire is not cleaned up. Replace the insulating material or clean the fire marks.
(4) the welding current is adjusted too much. Adjust the welding current.
The melt receiving too much water or impurities. The change is melting graft.
13, when the welding current is small, the overcurrent protection action occurs when the welding current is relatively small, or the current exceeds the maximum allowable value (5000S is 0.8A and 8000S is 1.2A), and the over current protection is not yet able to move. Over current protection adjustment resistance (30W10 omega) is not adjusted. Readjusting.
14. When the mold is fired, there is no spark protection action, or although there is a movement, the die burns more seriously.
(1) the sensitivity of spark protection is adjusted too low. The clockwise rotating potentiometer on the circuit board to increase sensitivity.
The spark signal line is broken. Repair the circuit breakpoints.
(3) the fault of the spark circuit board. Change or repair.
Protect the relay from damage. Change.
15, at the beginning of the weld joint, the protection action appears.
(1) the sensitivity of spark protection is adjusted too high. Moving counter clockwise on the circuit board to reduce the sensitivity of the potentiometer.
2. The heating body of the hanging die hot plate is leaking. Replace the heating body.
The spark signal line is touched with the machine shell. Check and exclude.
(4) the fault of the spark circuit board. Change or repair.
The welding current is set too much. Adjust the homology to reduce the setting value of the welding current.
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