Schneider drive repair Series: AVT08ATV16ATV28

Schneider Inverter ATV68 / 78 maintenance questions: 1. Schneider Inverter ATV68 / 78 how to add expansion I / O card (VW3A68201) by X2, X3 connector plug up to two I / O cards?. If only plug an I / O card, you must add the X2 connector. 2. Schneider Inverter ATV68 / 78 line reactor has six outlet terminals, depending on how the wiring of the main circuit voltage levels, different output terminal wiring position, see the figure below:? 3, ATV78 series inverter Schneider has no built-in The Modbus communication protocol? ATV78 series inverter Schneider is not integrated Modbus communication protocol. If the ATV78 communication, you can select the communication module for communication, the choice of protocols Modbus, CANopen, ProfibusDP, DeviceNet and LonWorks. 4, Schneider Inverter ATV68 / 78 is running at 2-wire control commands can delay the start? Can . I / O menu parameters "LID" can adjust the delay of a logic input status changes (adjustment range 0-200 milliseconds). 5, Schneider Inverter ATV68 / 78 can use absolute encoders do not, only the incremental encoder. 6, power Schneider Inverter ATV68 / 78 main circuit is powered, why sometimes prompts NLP (the main circuit is not energized)? Because DC reactor terminal PO, no short wiring between + PA /, the main circuit can not supply . Less than 90KW inverter factory wiring is plugged in short, greater than or equal 90KW inverter needs of customers themselves short. Schneider Inverter maintenance questions more to do on this site!