How to Order a Reliable Permanent Magnet Synchronous Traction Machine?
How to Choose a Reliable PMSM Traction Machine? With the advancement of energy-saving and intelligent elevator technologies, permanent magnet synchronous traction machines (PMSM) have become the mainstream choice for modern elevator systems. Compared with traditional geared traction machines, PMSM traction machines offer higher efficiency, lower energy consumption, lower noise, and maintenance-free operation—but only if you […]
Common Causes of Inaccurate Elevator Leveling and Recommended Parts Replacement
Causes of Inaccurate Elevator Leveling & Recommended Replacements During daily elevator operation, inaccurate leveling is one of the most common issues encountered by both maintenance technicians and passengers. When an elevator stops above or below the floor level, it not only affects ride comfort but may also create safety risks such as tripping or door […]
How to Choose Wear-Resistant and Quiet Elevator Door Hanger Rollers?
How to Choose Elevator Door Hanger Rollers? In an elevator door system, elevator door hanger rollers are key components that directly affect door smoothness, noise levels, and long-term stability. The quality of the hanger rollers often determines whether the elevator door operates smoothly or suffers from vibration, abnormal noise, or jamming. Choosing durable, low-noise, and […]
Analysis of Common Elevator Inverter Alarm Codes and Maintenance Recommendations
In modern elevator control systems, the elevator inverter (VVVF drive) is the core component that enables smooth starting, precise speed control, and energy-efficient operation. When an inverter malfunctions, the system usually indicates the fault source through alarm codes. Being able to quickly identify and handle these alarms is critical for maintenance teams and building operators. […]
Are Elevator Button Brands and Models Not Interchangeable, Making Replacement Difficult?
Are different elevator button brands hard to replace? In elevator maintenance and modernization projects, elevator buttons are among the components that fail most frequently and require the most frequent replacement. However, many maintenance engineers encounter the same problem: elevator button models from different brands are completely incompatible, making replacement extremely difficult! There are many brands […]
Common Elevator Traction Sheave Models
Common Elevator Traction Sheave Models In the entire operating system of an elevator, the traction sheave is one of the most critical components in power transmission. It determines whether the elevator can run smoothly, steadily, and safely. The friction between the traction sheave and the wire rope generates traction force, enabling the car and counterweight […]
What Are the Common Failures of Encoders?
What Are the Common Failures of Encoders? In elevator and escalator control systems, the encoder is an important electronic component used for speed detection, position feedback, and synchronous control. It functions like the “sensor of the elevator’s brain,” responsible for telling the main control system “at what speed and in which direction the elevator is […]
What Hitachi Elevator Button Models and Styles Are Commonly Used?
What Hitachi Elevator Button Models and Styles Are Commonly Used? In elevator parts procurement, “buttons” are always one of the most frequently used, most easily worn, and most commonly replaced components. As one of the most well-known global brands, Hitachi elevators are widely used in residential buildings, commercial complexes, hotels, and public facilities. Therefore, Hitachi […]
DI2 Elevator Main Electronic Parts List
DI2 Elevator Main Electronic Parts List DOC-130 Elevator Main Board DOC-131 Elevator Main Board DOC-132 Elevator Main Board DPP210 Elevator Drive Board DPP200 Elevator Drive Board DOC-220 Elevator Group Control Main Board DOR-231 Elevator Group Control Board DPC-121 Elevator Drive Board DPC-123 Elevator Drive Board DCL-243 Elevator Car Communication Board DCL-244 Elevator Car Communication Board DCD-220 Elevator Door Operator […]
How Does the Elevator Light Curtain Sensor Protect Passengers' Safety?
How Does the Elevator Light Curtain Sensor Protect Passengers' Safety? In an elevator's safety system, there is an invisible yet extremely crucial "invisible guardian" — the elevator light curtain sensor. It enables the elevator door to automatically detect obstacles before closing, preventing passengers from being trapped and providing intelligent protection for daily elevator rides. Today, […]
Are More Light Beams in an Elevator Light Curtain Always Better?
Are More Light Beams in an Elevator Light Curtain Always Better? In modern elevator safety systems, the elevator light curtain has become one of the most important devices for preventing door-closing accidents. Many people assume that the more infrared “light beams” a light curtain has, the safer the elevator will be. But is that really […]
DOP-116 Elevator Board Solutions MMR TYPE ELEVATOR
DOP-116 Elevator Board Solutions MMR TYPE ELEVATOR If a single indicator light on the DOP-116 elevator board isn't on, the fuse located beside the board is likely damaged. Replace the fuse to restore normal function. If all indicator lights on the DOP-116 elevator board aren't on, the elevator board is probably not receiving power. This […]
