DRIVING CONTROL METHOD OF MAGNETIC CRANE

摘要

PURPOSE: A driving control method of a magnetic crane is provided to reduce the increase of repairing expenses according to the periodical substitution of a magnetic contactor, to improve the productivity by reducing the repairing time, to use semi-permanently. CONSTITUTION: A driving control method of a magnetic crane comprises the steps of:constituting a main magnetic contactor(1) with many IGBT devices; constituting a sub-magnetic contactor(2) with many IGBT devices; orderly connecting the main IGBT driving circuit(4) composed of a light-insulating circuit(11) and a filter circuit(12) and delay and dead time occurring circuit(13) and IGBT driving circuit(14) to the IGBT devices; connecting the sub-IGBT driving circuit(5) orderly composed with a light-insulating circuit(21) and a filter circuit(22) and a IGBT driving circuit(23) to the IGBT devices.