BB inverter repair -ACS300 ACS300 drive failure often encounter the switching power supply damaged. Inverter switching power supply using the LT1244 approximate UC3844 function waveform generator blocks, by working voltage transients, and the load carried by the switching power supply damaged, resulting in damage occurred when this manifold, when used for a long number of years, but also to its electrolytic capacitors years of use, it is used to filter capacitor will become the direct cause of the switching power supply damaged. Maintenance will encounter ACS300 inverter rectifier bridge often damaged, because the choice of International Rectifier's one of the most compact three-phase full-bridge rectifier, the volume and load currents are small, poor thermal performance, there will be a period of time after damage . ACS300 control board failure probability is quite high, control communication failure between the disc and the motherboard, CPU motherboard failure has occurred and maintenance of such failures have a certain degree of difficulty. ACS300 selected Mitsubishi IPM module, relatively low probability of failure, damage to the module can be replaced, but must ensure that the drive circuit is completely normal before replacement. ABB drive repair method ABB ACS500 drive repair -ACS500 drive failure is more common faults are driven thick film damage. This driver is included thick drive circuit further comprises a short-circuit detection, IGBT module detects overcurrent detection, with good protection. ACS500 power module is rarely damaged. Repair damage encountered in driving thick, in the absence of accessory circumstances, can only be repaired thick, thick film components are soldered to the ceramic sheet, heat quite fast, not a long time to pay special attention to the heated soldering iron components, resulting in damage to the device. By using the time limit, ACS500 cooling fan also fails, a common phenomenon is only to hear the "buzz" sound after power, but the fan does not turn, these axial fan fan coil and bearing most of the time is good, generally deflection capacitor failure can return to normal after the replacement. ABB drive repair method ABB ACS600 drive repair performance -ACS600 drive failure, the quality is relatively stable, but by the surrounding environment, the parameters set properly, and improper operation may have resulted in damage to the drive. Of course, the natural damage is inevitable for each electrical products. And other products different is, ACS600 inverter using a fiber-optic communications, a substantial increase in the communication time between the CPU board and the I / O board, but may also cause a "LINKORHWC" "PPCCLINK" such a failure, and that failure fiber damage have a greater relationship. "PPCCLINK" ACS600 drive failure is more common faults, CPU boards and I / O board damage are likely to cause this failure. ACS600 inverter will encounter the same switching power supply damage, malfunction occurred mainly on the switch, the switch will cause a short circuit for limiting power resistor burned. ACS600 uses an intelligent module, when the load fault, and the use of some of the problems can lead to damage to the module. ABB drive repair ABB drive repair methods - the daily inspection should be preceded by the inverter detects the surrounding temperature and humidity of electricity, the temperature is too high will cause the inverter overheating alarm, will directly result in severe damage to the inverter power devices, short circuit ; the air is too moist will cause a direct short circuit inside the drive, the drive running pay attention to the cooling system is normal. ABB drive repair ABB drive repair method - regular maintenance cleaning air filters and dust inside the cooling duct. Check the screws, bolts and plug-ins that is loose, input and output reactor ground.interphase resistance is a short circuit, the normal should be more than tens of megohms. Conductors and insulators for corrosion phenomena, if you want to promptly wipe clean with alcohol. ABB drive repair method