Common faults and maintenance of electroplating high frequency switching power supply
1、 Fault appearance: the power indicator is not on.
Check content: whether the power supply is connected well, whether the knife switch is closed, if it is three-phase power supply, whether there is phase loss.
Cleaning method: connect the power supply and close the knife switch
2、 Fault appearance: the power indicator is normal, the fan is normal, and the operation indicator is not on.
Check content: electroplating high frequency switching power supply starting switch is not in the starting position
Cleaning method: if the starting switch is in the starting position and the whole machine does not work, then turn the starting switch again to the starting position
3、 Fault appearance: the operation indicator is normal, and the current and voltage cannot be adjusted.
Check content: check whether the voltage stabilizing and current limiting knob is adjusted to the minimum position
Cleaning method: turn the knob to the appropriate position according to the requirements of electroplating process
4、 Fault representation: no current output, operation indicator is normal.
View content: check whether the connection from power output to plating bath is disconnected
Cleaning method: replace or connect from the beginning
5、 Symptom: no current output, maintenance indicator flashing.
Check content: 1. Check whether the working environment temperature is too high and whether the fan works normally
Sweep method: sweep fan fault, improve ventilation condition
Check content: 2. Judge whether it is instantaneous over-current maintenance
Cleaning method: according to the boot procedure, the power supply can work normally
Check content: 3. Whether the input voltage is normal, whether there is overvoltage, undervoltage, and whether there is phase loss when three-phase input
Cleaning method: after cleaning the power supply fault of the distribution line, start the machine from the beginning according to the startup procedure
Check content: 4. Check whether the power rectifier tube has short circuit
Cleaning method: replace the rectifier tube
Check content: 5. Check whether the power equipment is damaged and whether the input rectifier module is damaged
Cleaning method: replace the same type of power equipment, and check whether the drive circuit is damaged, if any, replace the input electroplated rectifier module.
6、 Defect appearance: start the machine according to the normal operation procedure, and the maintenance indicator flashes.
Check content: 1. Check whether the working environment temperature is too high and whether the fan works normally
Sweep method: sweep fan fault, improve ventilation condition
Check content: 2. Judge whether it is instantaneous over-current maintenance
Cleaning method: according to the boot procedure, the power supply can work normally
Check content: 3. Whether the input voltage is normal, whether there is overvoltage, undervoltage, and whether there is phase loss when three-phase input
Cleaning method: after cleaning the power supply fault of the distribution line, start the machine from the beginning according to the startup procedure
Check content: 4. Check whether the power rectifier tube has short circuit
Cleaning method: replace the rectifier tube
Check content: 5. Check whether the power equipment is damaged and whether the input rectifier module is damaged
Cleaning method: replace the same type of power equipment, and check whether the drive circuit is damaged, if any, replace the input electroplated rectifier module. repair
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