Stall condition detection

• Main Authors: KORVENRANTA, SAKARI, LAITINEN, JUKKA, MARTONEN, PETTER, VALJUS, PETTERI, STOLT, LAURI, HELVILÄ, JARI
• Format: Patent
• Language: English; French; German
• Published: 30.11.2016
• Subjects: ELEVATORS; ESCALATORS OR MOVING WALKWAYS; HAULING; HOISTING; LIFTING; PERFORMING OPERATIONS; TRANSPORTING

Stall condition in an elevator is potentially dangerous situation if it causes slack to the ropes of the elevator. In such situation a counterweight or elevator car does not move even if the hoisting machine is still operating. This situation may be prevented by stopping the elevator as early as pos...