Problems Caused by Uneven Elevator Wire Rope Tension
What Problems Can Be Caused by Uneven Tension in Elevator Steel Wire Ropes? In an elevator traction system, steel wire ropes play a core role in both load-bearing and power transmission. When multiple ropes work together, their tension must remain basically equal to ensure smooth and safe elevator operation. However, in real maintenance practice, uneven […]
Early Warning Signs of Traction Machine Bearing Failure
Early Warning Signs of Traction Machine Bearing Failure In an elevator traction system, the traction machine bearing is one of the key elevator components that ensures the stable operation of the motor and traction sheave. Bearings support rotating parts and reduce friction. Once they become damaged or their performance declines, it can not only affect […]
GPSI,GPSII,GPSII NEXWAY,MAXIEZ Summary of Common Elevator Door Motor Models
GPSI,GPSII,GPSII NEXWAY,MAXIEZ Summary of Common Elevator Door Motor Models 1. Applicable Elevator Series GPSI GPSII GPSII NEXWAY MAXIEZ 2. Common Door Motor Model Categories 1) EMB Series (AC / Synchronous Door Motors) EMB-80-4 Voltage: 113V Power: 80W Speed: 600 r/min EMB-48-8 Type: Permanent Magnet Synchronous (SE-BL door motor) Reference Model: YA171B911G EMB-125-4 Type: Three-phase AC Asynchronous […]
Impact of Traction Sheave Groove Wear on Wire Rope Service Life
Impact of Traction Sheave Groove Wear on Wire Rope Service Life In an elevator traction system, the interaction between the traction sheave and the wire ropes is one of the key factors ensuring safe operation. Among these, the condition of the sheave grooves directly determines the load distribution and wear pattern of the wire ropes. […]
Common Abnormalities in Permanent Magnet Synchronous Traction Machines
Analysis of Common Operating Abnormalities in Permanent Magnet Synchronous Traction Machines With the development of elevator technology, permanent magnet synchronous traction machines (PMSMs) have been widely used in various elevator systems due to their high efficiency, low energy consumption, and compact structure. However, during long-term operation, these machines may still experience various abnormalities that can […]
Magnetic vs Photoelectric Leveling Switches in Elevators
Differences Between Magnetic Leveling Switches and Photoelectric Switches in Elevators In elevator control systems, leveling detection devices are essential for achieving precise floor stopping. Among them, two common types are magnetic leveling switches and photoelectric switches. Although both types of elevator components serve the same purpose—detecting the car position—they differ significantly in working principles, application […]
Light Curtain Installation Angle & Detection Coverage
Impact of Elevator Light Curtain Installation Angle on Detection Coverage In elevator door systems, the elevator light curtain is one of the most important safety components. It forms a detection field at the doorway using multiple infrared beams. When an obstruction is detected, the system prevents the door from closing or reopens it, effectively avoiding […]
Troubleshooting Elevator Door Lock Jamming
Troubleshooting Approach for Elevator Door Lock Mechanical Jamming In elevator door systems, the door lock is one of the core safety components. The elevator can only start running when the door lock is fully engaged and sends a correct signal. Therefore, if the mechanical structure of the door lock becomes jammed, it will not only […]
The Role of Elevator Emergency Power Systems
The Role of Elevator Emergency Power Systems In modern buildings, elevators have become an essential means of vertical transportation. However, in the event of a sudden power outage, elevators may stop operating and trap passengers inside the car, creating potential safety risks. Therefore, the elevator emergency power system has become a critical elevator component for […]
Common Causes of False Triggering of Elevator Light Curtains
Common Causes of False Triggering of Elevator Light Curtains In elevator door systems, the elevator light curtain is one of the most important safety components. It uses infrared beams to detect the doorway area. Once an obstacle is detected, the system prevents the door from closing or reopens it, effectively avoiding passenger entrapment. However, in […]
Safety Risks of Aging Elevator Door Operator Header Assemblies
What Safety Risks Are Caused by Aging Elevator Door Operator Header Assemblies? In elevator door systems, the door operator header assembly is one of the core structures responsible for controlling door opening and closing. It typically integrates key components such as the motor, transmission mechanism, door hanger rollers, belts, and control devices. Once the header […]
Typical Symptoms of Poor Contact in Elevator Door Lock Contacts
Typical Symptoms of Poor Contact in Elevator Door Lock Contacts In elevator safety systems, the door lock device is one of the most critical components for ensuring passenger safety. The door lock contacts, as a key electrical part of this system, can directly affect elevator operation if poor contact occurs—potentially leading to shutdowns or safety […]
