FUJI elevator supplier: Do not ignore the chinese elevator safety

Elevator as a vertical transport, bring the public safe, comfortable, efficient enjoyment of daily life has become and indispensable part of the public work, which are highly valued members of the public security situation of great concern and the government and relevant departments. Supermarkets, what are the problems of the elevator safety residential area? Elevator malfunction have? What causes the elevator fault is it?

Chinese Elevator supplier-fujihd.net more and more operating years of growth, elevator security risks become more prominent. After security checks for urban supermarkets, commercial and residential elevators, etc., quality and technology supervision department found the following problems.
When the elevator manufacturer and property management companies transfer elevator has legacy issues. Inspection of the elevator when the elevator company and the proposed property management companies transfer security issues that need rectification, blame on each other, it is difficult to be resolved.
Elevator use units do not pay attention to the management. As the elevator inspection, security inspection found no timely rectification, no signed contract and maintenance units for elevator maintenance; not set specifically (and) security management agencies and professionals (and) security management staff, or have not diligence, security management personnel are not qualified by training and examination certificates;
Emergency improper disposal. Elevator malfunction especially off people, the property management company does not notify or do not meet maintenance professionals to dispose of the unit, but to dispose of, resulting in accidents.
Elevator Security Sources strict, lay hidden innate; elevators safe place, leading to failure; elevator units do not use self-declaration inspection, extended operation; elevator maintenance is not in place, the most hidden faults; elevator maintenance, repair, inspection and other unfunded, sick to run the elevator; the elevator is no prescribed number of years, the old elevator risks and other factors will cause more lift malfunction or accidents.
FUJI elevator. Always put your safety first, the intention to customer service, to become the first safety elevator manufacturer, buy elevator to fujihd elevator company, best FUJI elevator.
 The article from fujihd.net.

How to Confirm Passenger Lift Rotary Encoder Failure Quickly

Passenger Lift-fujihd.net has not run smoothly when the maintenance costs of the trip a lot of effort to go a lot of detours eventually found to be due to the rotary encoder: 9 Several photoelectric sensor hole closure caused by dust after cleaning the fault eliminated.

An elevator carrying empty car safety gear linkage test after a governor appeared abnormal phenomenon, after the election elevator starter layer about 50mm stopped crawling, I think, since the elevator has a running condition, and no other obvious abnormalities phenomenon, then it is surely a rotary encoder is a problem. The last to find out why it really is a rotary encoder and the computer is connected to the phenomenon of virtual access.
In actual operation, the usual elevator, the elevator malfunction caused by the rotary encoder it is not a minority, it is also quite cumbersome checks, sometimes Although the investigation but still not reassuring.
So I will introduce to you a simple way to confirm rotary encoder failure, can be clearly seen from the drive regulating system diagram, it is was because the rotary encoder makes the computer a drive between an electric motor. Constitute a closed loop speed control system. This solid if there is a problem turn encoder feedback signal is not normal is bound to affect the normal operation of the motor.
If at this point we simply rotary encoder feedback disconnection - become open-loop control, motor if it is capable of running fast now normal state, then you can set the fault does have an elevator on a rotary encoder, or should at Zhu actively look for other aspects of fault. This is to confirm the rotary encoder faults.
Elevator industry maintenance personnel in their work often encounter a variety of phenomena, if careful investigation and analysis, good at summing improve, given the future work will provide a lot of shortcuts.