When using CNC plasma flame cutting machine, some faults may occur due to improper operation, wrong program setting or igniter. Jinan REBOUND CNC will give you answers one by one on how to judge the machine failure and what countermeasures to take.

1. No gas is ejected during ignition.

While operating the "fire test" key, open fire can be used to ignite at the fire spraying place of the igniter, so as to confirm whether there is fuel gas ejected during ignition.

If no gas is ejected, check the main control panel and solenoid valve indicator according to the gas circuit fault inspection and troubleshooting method in 15.3. If the indicator lights of the main control board and solenoid valve are normal and there is no valve blockage, the small hole of the gas nozzle on the igniter may be blocked. The method of diagnosis is to loosen the nut under the adjusting knob on the igniter and put the knob in water to see if there is gas ejected during ignition. If there is gas at such a place and there is no gas at the fire spraying place of the igniter, the gas nozzle must be blocked. The gas nozzle hole is very small, which is Ф 0.4mm。 The treatment method is to use a waste hand hacksaw blade to grind out a slender tip, and then use it to straighten out the small hole.

2. Check whether the ignition control is correct.

Whether there is carbon collection on the spark plug will also cause the spark plug not to ignite, which needs to be removed. Secondly, check the high-voltage package connected to the spark plug, as well as their interconnection and connecting plug. Apply dc3v (two ordinary batteries) voltage to the input end of the high-voltage package, and spark discharge shall be generated between the two output lines of the high-voltage package (the distance between the two lines is 2-10mm), otherwise the high-voltage package will be damaged.

3. When igniting, there is gas, and the spark plug also ignites, but it still cannot be ignited.

The main reason for this phenomenon is that the gas concentration is too high. If the gas concentration is not appropriate, it often cannot be ignited normally, especially when using gas such as gas and propane. At this time, it needs to be solved by adjusting the "adjustment knob" and changing the gas concentration.

4. The spark plug does not ignite during ignition.

During ignition, there should be obvious discharge sparks between the spark plug and the igniter body, which can be clearly seen or heard.

If the spark plug does not ignite, first check whether the ignition indicator on the main control board is on for 1-2 seconds when operating the "fire test" key to confirm the main control board

5. Check whether the ignition control is correct.

Whether there is carbon collection on the spark plug will also cause the spark plug not to ignite, which needs to be removed. Secondly, check the high-voltage package connected to the spark plug, as well as their interconnection and connecting plug. Apply dc3v (two ordinary batteries) voltage to the input end of the high-voltage package, and spark discharge shall be generated between the two output lines of the high-voltage package (the distance between the two lines is 2-10mm), otherwise the high-voltage package will be damaged.

6. When igniting, there is gas, and the spark plug also ignites, but it still cannot be ignited.

The main reason for this phenomenon is that the gas concentration of NC plasma flame cutting machine is too high. If the gas concentration is not appropriate, it often cannot be ignited normally, especially when using gas such as gas and propane. At this time, it needs to be solved by adjusting the "adjustment knob" and changing the gas concentration.

Jinan REBOUND CNC Machine Co., Ltd. is mainly engaged in CNC cutting machine, CNC plasma cutting machine, portable CNC cutting machine, gantry CNC cutting machine, CNC fiber laser cutting machine, CNC flame cutting machine, etc. you are welcome to visit our factory at any time.