Used drive repair, Shenyang on people (certified), West District, Shenyang drive repair provided by the people Electric Co. Shenyang on China Electric Co. (www.zsmsy.com) is specialized in the "high-low-voltage inverter, high and low voltage soft starter, magnetic switches, programmable logic controller (PLC)" of the enterprise, the company of "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Wei Song. Dynamic test drive repair test results normal after the static test, dynamic test can be conducted, that the power test machine. Before and after the power must note the following points: 1, before the power, make sure the input voltage is wrong, will appear 380V 220V class inverter power access into the bombing (fried capacitors, varistors, modules, etc.) ; 2, check whether the inverter connected to each jack is properly connected inverter repair training, connections for loose connections may cause abnormal sometimes drive fails, and in severe cases, such as the bombing; 3, after power failure detection display, and the preliminary determination and the reasons for failure; 4, if not display fault inverter repair, first check whether there is an exception, and the arguments after the reversion, the load (not connected to the motor) start the drive case and test the U , V, W phase output voltage value. Such as phase, three-phase inverter applications imbalance situation occurs, the module or driver boards faulty; 5, when the output voltage is normal (non-phase, three phase) inverter repair quote, load testing, Try a full load test. Converter repair the drive circuit characteristics HCPL-316J HCPL-316J is manufactured by Agilent an IGBT gate drive optocouplers, the internal integration of the collector-emitter saturation voltage detection circuit and fault owe state feedback circuit for the driver circuit provide a guarantee of reliable operation. Its features are: compatible CMOS / TYL level; optical isolation, fault status feedback; maximum switching time of 500ns; "soft" IGBT turn-off; under-saturation detection and undervoltage lockout protection; overcurrent protection; wide operating voltage range (15 ~ 30V); user-configurable automatic reset, shut down automatically. DSP combined with the coupler to achieve IGBT drive makes IGBT VCE saturation detection less compact, low cost and easy to implement, while meeting a wide range of security and adjust as needed.