Fagor APS-24, Hardware Manual

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2
DDS
HARDWARE
Ref.1310
POWER SUPPLIES
The FAGOR power supplies are connected after the filter to mains (see figure F.
H1/1 ) with a mains voltage between 400 and 460 V AC at a mains frequency of
50/60 Hz and its functions are:
 Provide a DC voltage output that will supply the drive modules through the
power bus.
 manage the energy excess accumulated in the power bus as a result of brak-
ing the motors.
Hence, we refer to:
Non-regenerative power supplies when they provide a DC voltage output (de-
pending on mains voltage) and its exceeding energy is dissipated as heat in
electrical resistors.
Regenerative power supplies when they provide a DC voltage (depending on
mains voltage) and its exceeding energy is returned to mains, hence reducing
the electrical consumption without generating additional heat.
Regenerative regulated power supplies (boost power supplies) when they pro-
vide a programmable DC voltage (depending on mains voltage) and its exceed-
ing energy is returned to mains with a power factor close to 1, hence reducing
the electrical consumption without generating additional heat.