Features
• Increases life of 1-phase squirrel motors and mechanical drives
• Devices available in 2 enclosure version:
IL 9017: depth 61 mm with terminals at the bottom for
installations systems and industrial distribution systems
according to DIN 43 880
SL 9017: depth 100 mm with terminals at the top for
cabinets with mounting plate and cable duct
• For single phase motors up to 1.5 kW
• Adjustable ramp time and starting torque
• Semiconductors will be bridged after start up
• LED indication
• Width 35 mm
Applications
• Drives with gears, belts or chains
• Conveyor belts, fans
• Pumps, compressors
Function
Softstarters are electronic devices designed to enable 1-phase induction
motors to start smoothly IL 9017. Slowly ramps up the current, allowing
the motor torque to build up slowly. This reduces the mechanical stress on
the machine and prevents damage to conveyed material.
When the motor is up to full speed the semiconductors in IL 9017 are
bridged to prevent internal power losses and heat build up.
Principle of Operation
Terminal L1 is connected to the mains contactor, terminal N to neutral,
the motor is connected to terminals T1, T2. As soon as power is connected to terminal L1, the softstart will commence. Potentiometer
"tan" (1 - 10 sec.) adjusts the ramp time (time the motor takes to get to full
speed) and potentiometer "Man" adjusts the start voltage (20 - 70 % Vnom).
When the softstart is complete the internal semiconductor is automatically
bridged.