Motor soft starter MINISTART | BA 9010

electronicsingle-phase

Increases the life of squirrel cage motors and mechanical drives • Easily fitted to existing installations • 1 phase control • For motors up to 5,5 kW (BA 9010) and to 11 kW (BN 9011) • Semiconductors bridged after softstart • Adjustable ramp time and starting torque • LED indication • DIN-rail mounting • BA 9010: width 45 mm BN 9011: width 100 mm Applications • Motor with gears, belt or chain drive • Fans, pumps, conveyor systems, compressors • Door drives, packaging machines • Start current limiting on single phase motors Function Softstarters are electronic devices designed to enable 1-phase or 3-phase induction motors to start smoothly. BA 9010 / BN 9011 slowly ramps up the current on one phase, therefore 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 BA 9010 / BN 9011 are bridged to prevent internal power losses an heat build up. Principle of Operation For direct on line or star delta applications at 400 V, terminals L1, L2, L3 are connected to the mains contactor, terminals X3, X4 should be bridged and the motor connected to terminals T1, T2, T3. As soon as power is connected to terminals L1, L2, L3 the softstart will commence. Potentiometer "tan" (0,5 - 5 sec.) adjusts the ramp time (time the motor takes to get fo full speed) and potentiometer "Man" adjusts the start voltage (0 - 70 % nomV). When the softstart is complete the internal semiconductor is automatically bridged.