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2 - Fagor Automation

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POWER SUPPLIES<br />

2<br />

The FAGOR power supplies are connected after the filter to mains (see figure F.<br />

H1/1) with a mains voltage between 400 and 460 V AC at a mains frequency of<br />

50/60 Hz and its functions are:<br />

Provide a DC voltage output that will supply the drive modules through the<br />

power bus.<br />

manage the energy excess accumulated in the power bus as a result of braking<br />

the motors.<br />

Hence, we refer to:<br />

Non-regenerative power supplies when they provide a DC voltage output (depending<br />

on mains voltage) and its exceeding energy is dissipated as heat in<br />

electrical resistors.<br />

Regenerative power supplies when they provide a DC voltage (depending on<br />

mains voltage) and its exceeding energy is returned to mains, hence reducing<br />

the electrical consumption without generating additional heat.<br />

Regenerative regulated power supplies (boost power supplies) when they provide<br />

a programmable DC voltage (depending on mains voltage) and its exceeding<br />

energy is returned to mains with a power factor close to 1, hence reducing<br />

the electrical consumption without generating additional heat.<br />

DDS<br />

HARDWARE<br />

Ref.1307<br />

31

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