Parker AC890 Product Manual page 127

Operating the Drive
Advantages
Using the 890 as a 4-Q power supply in common DC Bus schemes provides the following advantages:
 Simplified approach to Common DC Link systems
 Allows standard 890 drive to act as 4-Q DC Link power supply unit
 Near-sinusoidal supply currents (Motoring and Regenerating)
 Near-unity power factor operation (0.99 or better)
 Low supply harmonics currents (helps to meet G5/4 and IEEE519)
890 drives operating in 4-Q REGEN control mode are NOT suitable for use on systems where the
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Page
WARNING!
mains supply (L1, L2, L3) is provided by a generator
(where the supply cannot absorb the regenerated current).
890SD (Standalone) Drive: Frame G, H & J