Motors & drIVEs 11
Holistic energy saving strategy unites
production and the environment
A holistic and practical
approach to satisfy
today’s energy saving
requirements can
deliver more than
just cutting waste and
improving efficiency
for manufacturing
industries.
Un planteamiento
integral y práctico
para satisfacer las
necesidades de ahorro
de energía actuales
consigue mucho más
que la reducción de
energía y la mejora
de la eficacia para la
industria manufacturera.
Ein ganzheitlicher und
praktischer
uring the past decade of
Lösungsansatz zur
intense industrial growth,
Erfüllung moderner
Energiesparkonzepte
environmental concerns have not
von heute kann mehr
D
Fig. 1. FR-F700 inverter drives can produce
savings of up to 57 per cent compared with
conventional drives.
been the primary focus of most
bieten als nur eine
manufacturing industries. There are now strong 57 per cent compared with conventional drives,
Verringerung des
initiatives within energy intensive industries when used on variable torque loads such as fans
Müllaufkommens und such as steel, chemicals, aluminum, paper, glass, and pumps.
eine gesteigerte foundries, food and beverage, ceramics, cement
With a major proportion of industrial
Effizienz für die
and extraction to use inverter drives to reduce electricity consumption (around 40 per cent)
herstellenden
energy consumption. utilised as the motive power for electric motors
Industriezweige.
The major effort within industry is that drive pumps, fans and compressors, savings
concentrated on reducing the amount of energy of over 50 per cent on motor running costs are
consumed by pumps, fans and compressors, a major contributor to reducing a company’s
usually by fitting inverter drives to control speed carbon footprint.
and improve torque response, while also reducing They also reveal the scale upon which energy
off-load running. This approach is still highly is wasted unnecessarily, giving a clue to the
creditable. wider application of ac inverter drive technology
The concept of ‘Environmental in more secondary areas of production such as
Manufacturing’ from Mitsubishi Electric however conveyors, mixers and machine tools, which do
can be taken much further, Mitsubishi has a not immediately suggest themselves, but can also
complete range of automation equipment that provide useful savings. Before moving into these
can be applied to gain the maximum benefit secondary areas and exploring the benefits of
in any industry, allowing efficiency gains to synergised control, it is appropriate to consider
be spread far wider. For example, Mitsubishi another, newly emerging drive feature that acts
Electric’s FR-F700 series of power-saving not just to reduce energy consumption, but to
inverter drives – manufactured in common reverse it, this is regeneration.
with all Mitsubishi products in ISO 14001 The regeneration feature is integrated into
accredited factories – can produce savings of up to Mitsubishi’s new FR-A741 inverter drive to
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