CG Drives & Automation 01-7318-01r1 General description 11
2. General description
The Emotron active front end (AFE) is a regenerative active
front end unit designed to be used either in combination
with Emotron motor inverter (VSIs) i.e. VFX/FDU or
without Emotron motor inverter (VSIs). The main objective
of the Emotron AFE is to rectify the supply AC voltage into
DC voltage to be fed to or regenerated from the VSIs. This
is achieved with the minimal impact on the supply by the
control of the active rectifier module which provides
sinusoidal input currents with a very low harmonic content,
typically a THD(I) below 5%. Different variants of
Emotron active front end drives are:
AFR: Regenerative, low harmonic active front end
without Emotron motor inverter.
AFG: Regenerative, low harmonic active front end
without Emotron motor inverter. AFG offers full/
advance grid support functionality.
FDUL: Non-regenerative, low harmonic drive including
active front end (AFR) together with Emotron
motor inverter FDU.
VFXR: Regenerative, low harmonic drive including active
front end (AFR) together with Emotron motor
inverter VFX.
FDUG: Regenerative, low harmonic drive including active
front end for generation (AFG) together with
Emotron motor inverter FDU. FDUG offers full/
advance grid support functionality.
VFXG: Regenerative, low harmonic drive including active
front end for generation (AFG) together with
Emotron motor inverter VFX. VFXG offers full/
advance grid support functionality
.
CAUTION!
Always consult CG Drives & Automation
before connecting an Emotron AFR/AFG to a
standard VSI.
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