Safety method and an elevator drive system for an elevator system comprising reduced buffers
AssigneeKone Corporation
InventorsAri KATTAINEN, Juha-Matti AITAMURTO
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Abstract
A safety method is performed for an elevator system including reduced buffers. The method includes: detecting a reduced braking force of a hoisting machinery brake arrangement, and adjusting at least one limiting parameter limiting an elevator motion in response to detecting the reduced braking force, the elevator motion representing a motion of an elevator car of elevator system. An elevator drive system and an elevator system are also provided.
Claims20
A safety method for an elevator system comprising reduced buffers, the method comprises:
- detecting a reduced braking force of a hoisting machinery brake arrangement, and
- adjusting at least one limiting parameter limiting an elevator motion in response to detecting the reduced braking force, wherein the elevator motion represents a motion of an elevator car of elevator system.
An elevator drive system of an elevator system comprising reduced buffers, the elevator drive system comprising:
- at least one processor;
- and
- at least one memory including computer program code;
- wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the elevator drive system to perform:
- detect a reduced braking force of a hoisting machinery brake arrangement, and
- adjust at least one limiting parameter limiting an elevator motion in response to detecting the reduced braking force, wherein the elevator motion represents a motion of an elevator car of elevator system.
Dependencies are inferred from the claim text.