... 4.Hoistway parameter self-learningController can learn the parameter of hoistway by automatically running. The information comprises total floor, ... provides an audio signal to inform waiting passengers of the arrival of the elevator car at each floor. The chime ... decoration,Comb plate,Return chain,Step chain,Roller of step &chain,Guide roller,Tachometer roller,V-Belt pulley,Handrail,Inlet cover,Inlet ...