CD Automation introduces low-cost soft starters to 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 a kickstart adjustable between 100, 200 or 300 msec; 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. As well as kickstart STO features include; internal electronic overload relay; fixing hole mounting from 42 to 200A; Modbus RTU and USB device as standard - Modbus TCP, Profibus, Profinet and Devicenet field 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; trending of electrical variables, 2 configurable digital inputs and outputs; Modbus RTU and USB as standard. The above Fieldbus connections in addition to Powerlink, Ethercat and Ethernet are available on the STE as an option.

Soft starters are typically used in applications where:

• Speed and torque control are required during startup only (or stop if equipped with soft stop)
• Reducing large startup inrush currents associated with large motors
• Mechanical systems that require a gentle start to relieve torque spikes and tension associated with motor start up. Examples include conveyors, belt-driven systems, gears, etc.
• Pumps are used to eliminate pressure surges resulting from rapid fluid changes in pipe systems

 To request a copy of the new soft starter catalogue email [email protected]