SPECIAL FEATURE: MOTORS AND GEARBOXES
N O R D :
E N E R G Y- E F F I C I E N T
P U M P D R I V E S O L U T I O N S
26 June 2018
REN146
Running permanently at full speed
may work for you but not so much
for your pump drives. Speed
control balanced to actual requirements
greatly enhances the energy
efficiency of pump systems.
Nord DriveSystems supplies
complete pre-assembled distributed
drive units for a wide performance
range up to 22 kW. In addition
to energy savings of up to 60%,
users benefit from reduced noise
emissions, low wear, and increased
plant service life as well as the
ecological advantages.
Nord DriveSystems’ integrated pump
drives can store up to four operation
modes which can be displayed and
changed directly at the control unit.
The SK 200E series comprises
reliable and economical frequency
inverters, especially tailored to
pump applications that require
precise adjustments of power
output; these are compatible with
mains voltages worldwide.
For improved customer ease, Nord
configures complete drive systems
for various application areas (IP55/
IP66, ATEX zone22/3D), and its
integrated process and PI controller
functions enables the fully-automated
control of process variables
as well as compensation of disturbances.
This is applicable both in
stand-alone and mobile applications
as well as in complex setups
with several drives.
Martin Broglia, managing director of
Nord DriveSystems Australia says
that thanks to two analogue inputs,
the inverters can directly process
sensor data such as pressure or
flow rate. “Optional signal and
power plug connectors facilitate
handling and ensure compatibility.
A programmable energy-saving
function automatically reacts to
partial load operation – increasing
efficiency and significantly reducing
running costs.”
Operation is straightforward and
flexible via control terminals, bus, or
via an optional potentiometer that
enables adjustments directly at the
inverter.
“In an effort to reduce labour hours
whilst being cognisant of productivity
levels, up to four operation
modes can be stored to save on
setup time,” Martin says.
In addition, the customised
parameters can be quickly exported
to other units via a pluggable
storage module, the system bus,
or Ethernet interfaces. Once again
keeping productivity in mind, with
control cabinets no longer required,
the decentralised option minimises
cabling effort for users, and since
the inverter is supplied pre-assembled
the electrotechnical effort
doing installation is nominal.