Stone carving machine spindle inverter is always the cause of the alarm

Stone carving machine using frequency converter, is not a generic model can satisfy the frequency converter, general-purpose inverter even installed temporarily can be normal use, but the service life of carving spindle motor will have a big impact. Directly to the spindle voice more and more large and sharp, frequency converter always alarm for no apparent reason, the last is the spindle cannot be started, stopped state of rotating spindle head, found that trouble with the sense of rotation resistance. Actually at that time the spindle bearing has been broken. Some inverter manufacturer they said this is main problem, but just use several months of new spindle, how so easily damaged? And other brand inverter, such as Mr Anwar frequency converter used in stone carving machine, why have no fault. This is because the technical personnel of stone carving machine learning more deeply, have a lot of strange field are studied, is today's experience. Stone engraving machine carving process because there is water cooling, so the spindle has been in a wet environment for a long time, over time the steam enters the coil through clearance, leading to a doubling of no-load current of frequency converter, then some inverter will be uninterrupted alarm, is one of the main reasons for this. Another reason is that according to the smoothness of the inverter output current, some inverter manufacturer software algorithm is relatively backward, the output of the sine wave is not standard, impact on the main shaft of the coil is large, and parameter setting is not comprehensive, for the main shaft damage is very large, over time, all kinds of alarm are evident. Let the customer can't normal production. And the site of the low voltage, voltage fluctuation range is large, some inverter without automatic voltage stabilizing function, low voltage, will be submitted to the under-voltage alarm, which is the alarm more.