Introduces Low Cost Soft Starters for AC Induction Motors – CD Automation UK

Placed: 27/07/16
Region: East Sussex
Location: Eastbourne
Category: Electronics


Content of the advertisement:

Leading supplier of power control devices CD Automation UK is launching a family of low-cost soft
starters for small AC induction motors to the UK market.
Designed to control a three-phase AC motor from 6A to 200A nominal with internal bypass
contactor, the STB range offers three adjustments: initial start voltage, start ramp time and
soft stop ramp time. Features include kickstart in 100-300 msec which can be configured by DIP
switch; DIN rail or fixing hole mounting from 6 to 32A; and fixing hole mounting from 42 to 200A.
Soft starters within the STO family control a three-phase AC motor from 48A to 200A nominal with
internal bypass contactor. Rotary adjustments can be made via the front display panel with regard
to initial start voltage, start and stop ramp times. Featuring kickstart in 100, 200 or 300 msec
which can be configured by DIP switch; internal electronic overload relay; hole mounting from 42
to 200A fixing; Modbus RTU and USB device as standard - Modbus TCP, Profibus, Profinet and
Devicenet connection is available as an option.
STE soft starters are designed to control a 3-phase motor from 48 to 200A and feature a colour
touch panel/HMI; special vector control; message/information front display panel in different
languages; voltage current/power; trend of electrical variable, 2 configurable digital inputs and
outputs; Modbus RTU and USB device as standard. The above Fieldbus connections in addition to
Powerlink, Ethercat and Ethernet are available on the STE as an option.
Soft starters are solid-state devices that protect AC electric motors from damage caused by
sudden influxes of power by limiting the large initial inrush current associated with motor
startup. They provide a gentle ramp up to full speed and are used only at start-up (or stop).
Applications that need constant variable speed control require a variable speed controller or
drive (VFD). Starting from a set initial voltage soft starters ramp up to the nominal voltage in
a set time.
In addition, it is possible to start high friction load with a kickstart that gives to the motor
for 100÷300 msec 80% of full voltage without current limit. When started the motor reaches full
speed and remains there until stopped and can reach zero speed by inertia or via set ramp down.
Dynamic braking is available as an optional extra on the STB, STO and STE soft starters.
Electronic motor thermal protection has been implemented in STO and STE soft starter families,
further reducing the mechanical stress on motor and shaft and thereby its energy consumption.
Soft starters are typically used in applications where:
 Speed and torque control are required only during startup (and stop if equipped with soft
stop)  Reducing large startup inrush currents associated with a large motor is required  The
mechanical system requires a gentle start to relieve torque spikes and tension associated with
normal startup for example, conveyors, belt-driven systems, gears, etc)  Pumps are used to
eliminate pressure surges caused in piping systems when fluid changes direction rapidly
About CD Automation
CD Automation UK boasts the most comprehensive power control device range on the market today.
The extensive range is capable of accurately controlling a wide spectrum of electrical loads up
to 3000kW; from simple single-phase heaters up to complex high temperaturecoefficient three phase
loads.
Supplying industry for over 25 years CD Automation UK delivers value for money solutions and
reliable systems backed by individual service. Products and applications can be found in most
sectors including: automotive, defense, aerospace and transport; food and beverage;
manufacturing; building and construction including HVAC suppliers; and power generation, waste
and waste-water management.
T: 01323 811100
mark.e@cdautomation.co.uk
www.cdautomation.co.uk
Industry Connections: CD Automation UK Ltd

Price / Salary: £100.00