VARIABLE SPEED DRIVES
Why Trend Variable Speed Drives?
Energy Savings
Reduced Installation Costs
Energy efficiency and environmental considerations are
Not only are significant operational savings possible but
attracting intense interest in the design of HVAC systems
so are savings on installation costs, as switchgear
and the energy performance throughout the 'whole-life'
associated with the motor control is eliminated, motor
operation of these systems is now seen as a key design
cables are reduced from six to three wires and power
consideration. Consequently HVAC system designs
factor correction capacitors are no longer required.
increasingly incorporate variable speed drives (VSDs)
As starting current is always kept within the nominal value,
enabling motors to be used with maximum efficiency,
size and cost of cabling and fuses are also minimised.
resulting in significant energy savings.
100%
DIRECT ON LINE
POWER
700%
STAR DELTA
50%
ELECTRONIC SOFT START
INVERTER
500%
400%
300%
200%
22%
FULL LOAD AND SPEED
% FULL LOAD CURRENT
600%
100%
90
HZ
MOTOR SPEED/FLOW
60%
80%
100%
SPEED
Trend's variable speed drives can be applied across a wide
Both the Trend NX and NXL ranges are amongst the most
range of industrial and commercial applications, however
compact per kW in design available in the HVAC industry
in an HVAC environment they enable motors on fans and
(typically up to 30% smaller in footprint than competitors
pumps to regulate flows of air and water in variable flow
product). They are available in IP54 and IP21 packages;
applications. Such systems are inherently more efficient,
being slim they can easily be mounted on the wall or in an
avoiding the wasteful pumping and heating or cooling of
enclosure, even if space is limited. The “bookshelf” design
water for only a proportion of the delivered media to be
means side-by-side installation makes the most of the
used. In applications where flow rates can be reduced,
tightest of spaces, saving cost on installations.
motor energy can be significantly reduced as the
relationship between flow rate and motor power follows a
Putting Trend variable speed drives to work couldn't be
cube-law i.e. reducing the flow rate by 20% reduces power
easier. The NXL range has a quick setup routine that
consumed by approximately 50%.
allows the drive to be configured in 4 simple steps,
minimising the amount of time required to commission
The payback on the investment is dependent on the cost
the drive.
of electricity, the number of hours per week the fan or
pump is running, the size of the fan or pump and the
Additionally software tools are available for both the NX
amount of reduction that can be made to the flow rate.
and NXL range of drives for commissioning, developing
and loading more complex applications.
Typically we have found the payback period for retrofitting
a variable speed drive to be less than 2 years and
sometimes as little as three months. See the payback
calculator CD ROM included with this brochure.
VARIABLE SPEED DRIVES
Reduces energy costs
All Trend VSDs qualify for
the government (UK only)
backed ECA (Enhanced
Capital Allowance) scheme.
This enables 100% first year
capital allowances to be
claimed against the investment
in Trend VSDs.
Keypad display panel
Providing complete control
of the system which can
be tailored with or without
optional cards.
Intelligent networking
The NX range of drives have
the option of network cards
that allow it to reside on a
Trend LAN or a Trend Virtual
LAN over TCP/IP.
Easy installation
means reduced costs
Compact size and flexible
installation makes Trend drives
ideal when space is at a
premium. Drives can be easily
mounted using a DIN rail or
they can be wall mounted.
VARIABLE SPEED DRIVES
NX Range
The NX is designed to be a high
performance, easy-to-use drive for
a wide range of applications.
It is based on an advanced sensorless vector control
concept, which provides excellent motor control in all
circumstances. An automatic torque maximiser feature is
available, ensuring that loads can be started reliably.
The drive also includes an automatic energy saving feature,
which optimises the motor flux as a function of motor load
and speed. The basic drive operation is also suitable for
multi-motor applications.
Trend variable speed drives are built on the principles of
modularity. This creates robust drives that can be modified
according to customer requirements. The control section
contains the microprocessor required for advanced motor
control and the keypad display panel. It can also
accommodate a range of input, output and interface
options, including the NXNI and NXIP.
NXNI is an interface card, which can be installed into
an NX variable speed drive. It enables the drive to be
connected directly to the Trend current loop local network
(LAN). NXIP takes all of the features of the NXNI and
Key Features
places them onto Ethernet. It enables the drive to be
n
Trend LAN fully compatible
connected to an IQ system network running on Ethernet.
n
Compact physical size
n
ECA certified (UK only)
With these interfaces the drives can be integrated into
n
Metric gland plate up to 30kW
the Trend system for interaction with controllers and for
n
Low torque ripple
user supervision.
n
High immunity to resonant vibrations
n
Starting torque > 200 %, depending on motor
Both interface cards can eliminate the wiring of fault,
and drive sizing
start, stop and ramp signals thus
further reducing the installation
Applications
costs. They also allow the
supervisor to view all of the
internal parameters of the
drive that would otherwise
only be available at the
display panel.
Select the software application best matching the
characteristics of the actual function. This simplifies
set up, because only those parameters relevant to the
application will be visible. For each application there is a
start-up wizard that guides the user through the start-up
process and parameter settings. The drive is also capable
of identifying motor parameters, further easing start-up.
VARIABLE SPEED DRIVES
NXL Range
The NXL is designed as an economical
drive ideal for the HVAC industry.
The compact size and flexible installation options make the
NXL suitable for applications where space is at a premium.
The small MF2 frames can be mounted using a DIN rail
either at the back or at the side of the drive; the larger MF3
- MF6 frames are wall mounted, and use the same power
section enclosures as the NX drives.
The drives are easy to program with a quick setup routine
consisting of only 4 steps. In addition to the standard I/O
in the basic drive, there is space for two option cards
providing additional I/O or other functionality.
The NXL builds on the modular design concept of the NX
family of drives and are all delivered with a keypad display
panel. The drives come in different enclosure classes: the
Microdrives, with the small MF2 and MF3 frames, are IP20,
whereas the Ecodrives drives, with MF4 - MF6 frames, are
available in IP21 and IP54.
Key Features
n
Quick 4 step configuration
n
Compact physical size
n
ECA certified (UK only)
n
Metric gland plate
n
Low torque ripple
n
High immunity to resonant vibrations
n
Starting torque > 200 %, depending on motor
and drive sizing
Multi-Control Application
The NXL includes an easy-to-use and flexible multi-control
application, keeping parameter adjustments to a minimum.
The versatile features include full motor protection, flying
start function, sleep function and a PID controller, with the
option to control multiple pumps.
VARIABLE SPEED DRIVES
Trend Variable Speed Drives 0.37 to 250 kW
Trend’s range of variable speed drives is designed to cover most industrial and commercial
applications and are easy to use, by both installers and end users.
Trend's general purpose and high performance variable speed drives are provided with filtering
suitable for conventional commercial applications and a range of expansion cards are available to
meet most requirements. All Trend drives come with detachable keypads as standard and the NX
keypad can be used to store the active parameters and transfer them between drives.
NXL
Microdrives
NXL
Ecodrives
NX
High Performance
Power & Voltage
EMC
Enclosure
Options
208 - 240V Single Phase*
0.37 - 1.5 kW
380 - 500V Three Phase
0.55 - 0.75 kW
N
IP20
NXOPTAA Expansion Card**
Keypad Door Mounting Kit
H Level Filter Kit
Din Rail Mounting Kit
RS232 Adapter Kit
380 - 500V Three Phase
1.1 - 30 kW
H, T
IP21 or IP54
NXOPTAA Expansion Card**
Keypad Door Mounting Kit
RS232 Adapter Kit
380 - 500V Three Phase
1.1 - 160 kW
H, T
IP54
NXOPTA1 Expansion Card***
NXOPTA3 Expansion Card****
NXOPTB5 Expansion Card*****
Trend LAN Network Card
Trend LAN TCP/IP Network Card
Keypad Door Mounting Kit
Keypad Blanking Kit
*NXL 208 - 240V single phase input, three phase 208 - 204V output
**NXOPTAA - NXL input option card AA - 3*DI, 2*DO (1 relay output, 1 open collector)
***NXOPTA1 - NX input option card A1 - 2*AI, 6*DI, 1*AO, 1*DO (open collector)
****NXOPTA3 - NX output card A3 - 1*AI (thermistor input), 2*DO (1 changeover, 1 normally open)
*****NXOPTB5 - NX output card B5 - 3*DO (normally open)
VARIABLE SPEED DRIVES
Like to save 50% off fan
and pump running costs?
See the savings with the
Trend VSD Payback Calculator
CD missing?
Call +44 (0)1403 216451
Energy savings for Pumps and Fans
Enhanced Capital
Allowance (ECA)
Variable speed control of centrifugal
Installation of a VSD is easy and the
fans and pumps offers a significant
payback is fast, typically measured
All Trend VSDs qualify for the
opportunity to reduce building
in months not years.
government (UK only) backed ECA
(Enhanced Capital Allowance)
running costs. Reducing their speed
by just 20% will give you an energy
Use the VSD calculator to get an
scheme. This enables 100% first
saving of around 50%.
idea of the level of savings that can
year capital allowances to be
be achieved. The size of the motor
claimed against the investment in
This saving can be achieved by the
and the time it operates is all that is
Trend VSDs.
installation and correct application
required - the calculator can do the rest.
Detailed information can be found
of a Variable Speed Drive (VSD).
at the ECA website www.eca.org.uk
The VSD will provide the capability
to accurately control the speed of
a fan or pump motor and
consequently its energy usage.
To run the CD
Simply insert into the CD disc drive and
follow the instructions.
If the CD does not auto start, view the
contents of the CD and double click the
vsd.exe file.
Trend Controls
c/o Novar Austria GmbH
Fernkorngasse 10
Vienna A-1100
AUSTRIA
Telephone +43 1 600 6030 151
Facsimile +43 1 600 6030 906
Trend Control Systems
c/o Honeywell (China) Co. Ltd.
35F Tower A City Center
100 Zunyi Road
Shanghai 200051
CHINA
Telephone: +86 (21) 5257 4568
Facsimile: +86 (21) 5855 5856
Trend Control Systems
Østergade 23-29, 3. sal
DK8000
Århus C
DENMARK
Telephone +45 7020 9955
Facsimile +45 7020 9957
Trend Control Systems
9, Avenue du Marais
Parc des Algorithmes
Immeuble Sophocle
95815 Argenteuil
FRANCE
Telephone: +33 (0)1 39964964
Facsimile: + 33 (0)1 39964951
Novar GmbH
Bereich Trend
Kaiserleistraße 39
63067 Offenbach
GERMANY
Tel.: +49 (0)69 / 80 64 - 100
Fax: +49 (0)69 / 80 64 - 101
Trend Control Systems
c/o Honeywell Automation
India Ltd.
No.2234, 23rd Cross, K. R. Road
Banashankari llnd Stage
Bangalore 560070
INDIA
Telephone: +91 80 5514 6587
Facsimile: +91 80 5514 6566
Trend Control Systems
Via del Tintoretto, 15
Cassano Magnago (VA)
21012 Milan
ITALY
Telephone +39 0331 704779
Facsimile +39 0331 704780
Trend Control Systems Ltd
Laarderhoogtweg 18
1101 EA
Amsterdam Z.O
THE NETHERLANDS
Telephone +31 (0)20 56 56 395
Facsimilie +31 (0)20 56 56 314
Trend Control Systems
Kompleks Perusahaan LTAT
Jalan Pengapit 15/19
40000 Shah Alarm
Selangor Darul Ehsan
MALAYSIA
Telephone: +603-55191198
Facsimile: +603-55104259
Trend Control Systems
Avenida de la Vega
1 Edificio Veganova
Edificio 2°, Planta 1a, Of. 1
28108 Alcobendas
Madrid
SPAIN
Telephone +34 91 657 35 84
Facsimile +34 91 657 35 87
Trend Control Systems
c/o Honeywell (Middle East)
Suite 307, 3rd Floor, Mini Tower
Oud Metha Office Complex
PO Box 60832
Dubai
UAE
Telephone: +971 (4) 324 4240
Facsimile: +971 (4) 324 1343
Trend Control Systems USA
6670, 185th Avenue NE
Redmond
WA 98052
USA
Telephone +1 425 897 3900
Facsimile: +1 425 869 8445
Trend Control Systems Limited
P.O.Box 34, Horsham, West Sussex, RH12 2YF, United Kingdom
Tel:+44 (0)1403 211888 Fax:(UK)+44 (0)1403 241608 Fax:(Int)+44 (0)1403 210982 www.trend-controls.com
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