ELEVATOR BRAKE CONDITION TESTING

摘要

A brake (42) is tested in an elevator system (10) including a car (12) and a counterweight (14) connected to the car (12) by a rope (16). The car (12) is positioned at a reference position in the hoistway (HW) adjacent to a hoistway limit switch (23), and the brake (42) is engaged to hold the car (12) at the reference position. The rotating member (46) is then driven to provide a testing force on the brake (42) that simulates a load in the elevator car (12) of at least a maximum rated load for the car (12). The brake test is terminated if the hoistway limit switch (23) is actuated.