Frekvenční měniče Katalogy, manuály (EN+CZ)

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Vydal: ABB s.r.o, ELSYNN Autor: ABB ELSYnn

Strana 44 z 825







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2004 . separate pulse encoder inter­ face module also possible. 12-pulse bridge configuration can imple­ mented with the unit supplied three-winding transformer with thirty degree phase shift between secondary windings.3. . However, an optional fuse switch with capacitor charging device can selected disconnect the whole drive unit. Diode Supply Unit (DSU) A Diode Supply Unit used non-regenerative drive systems convert three-phase voltage DC voltage. Several different I/O extension modules for different functions such control, monitoring and measurement purposes are available. These sections are called multidrive units and the most important units are: ■ drive units ■ diode supply units ■ IGBT supply units ■ thyristor supply units ■ dynamic braking units ■ control units (optional) Drive Units Inverters have built-in capacitors for smoothing the voltage the busbars.Overview the construction An ABB multidrive made several different units (see figure below). ■ Each inverter has Drive Control Unit (DCU) which contains the RMIO Board and optional I/O modules. Other optional features include the prevention unexpected start-up for the inverters provide safe interlock for the system. ACU Supply Unit ICU DCU/TSU/ISU Drive Unit(s) 6 3AFE 68248531 REV 31. . The electrical connection to the common busbar fuse protected