We are veteran manufacturer, supplier and exporter of a latest range of Crane Driver in Kharkiv, Kharkiv, Ukraine. Triol AT24 VFD Line 1 is an optimized solution for every elevator. This line is specially designed to provide safety and reliability of the lift mechanisms operation. The equipment features are state-of-the-art technical solutions and functionality suitable for the most critical applications. Key functions â¢ start, stop and control of motor rotation frequency; â¢ acceleration and deceleration ramps including S-shaped ramps; â¢ reversal; â¢ acceleration, decreasing, stop; â¢ protection of the motor overcurrent, overload protection â¢ lift operation at fixed speeds, capability of universal setting to the lift VSD (variable speed drives) and integration with lift control systems used for an old housing stock; â¢ saving control configuration of motor; â¢ dynamic braking of motor; â¢ operation mode Â«EvacuationÂ»; â¢ operation mode Â«Short floorÂ»; â¢ operation mode Â«InspectionÂ»; â¢ braking unit control support; â¢ motor contactor control; â¢ vector control with and without speed feedback Protection functions â¢ protection against overheating of power modules; â¢ motor protection against overheating using motor temperature sensor; â¢ overvoltage and under voltage protection in DC-link of VFD; â¢ short-circuit at VFD output protection; â¢ protection against increasing currents at VFD output; â¢ desaturation protection.