![]() from the resultant of the forces of the rope bent over the pulleys, which have an effect on the force sensor. The unknown tensile force in the rope is determined by an “indirect method”, i.e. ![]() ![]() The device is equipped with three, mutually attached pulleys, over which the rope is installed. In an overwhelming number of cases, elevator technicians use them for setting up the unequally distributed tensile forces in elevator ropes. The laboratory device is modified for checking operations of commonly used rope sensors. The paper describes the structural design of a laboratory device that allows for presenting operation, simulating work procedures and checking functionality of the elevator “rope sensors” when equalizing different tensile forces in partial ropes of a rope system of traction elevators.
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