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Overload Non Start
When the car load exceeds the capacity or rated load of the elevator, the elevator will stop operation with the doors fully opened on that floor and a buzzer is annunciated. The buzzer will stop when a sufficient number of passengers have exited the car and the car load is less than the rated load. |
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Automatic Bypass
If the car load has exceeded 80% of the rated load or capacity of the elevator, the elvator will automatically ignore all the hall calls in the direction of service and respond to car calls only. |
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Door Safety Edge
The leading safety edge of each car door panel is equipped with an electro-mechanical safety edge device. When a passenger or an object touches the safety edge, the elevator will stop the doors at the point of contact and re-open the car doors immediately.
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Interphone
In cases of emergencies, the interphone installed inside the elevator facilites direct two-way communication with the rescue personnel in the motor room. Communication is also possible with the building superintendent if an optional intercom is installed in the building control room. The interphone is activated by simply pressing the interphone button on the car operating panel.
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Emergency Car Lighting
An emergency ceiling light switches on automatically in the event of a power failure, providing illumination within the car. The emergency light will allow any passengers inside the car to locate and utilize the interphone or the alarm bell to alert the building superintendent.
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Fire Emergency Return
When the building's fire or smoke detectors are activated or the switch on the supervisory panel (optional) is activated, all calls are cancelled and all the elevators will immediately travel to the main lobby and park there with the doors fully open. However, the electrical signal that indicates the actuation of the fire sensors, must be supplied to the elevator controller by others. |
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Car Light & Fan Automatic Shut Off
When no calls are registered after a predetermined period of time, the car lighting & ventilation fans will automatically switch off to save energy consumption. |
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Anti-Nuisance Cancellation
All car calls are automatically cancelled to avoid unnecessary stops caused by registration of nuisance car calls when the number of car calls registered do not corelated with the car load detected by load switches at the bottom of the lift.
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Car Call Cancellation
Car calls may be cancelled by pressing the car call button twice. This will avoid unnecessary stops when car calls are wrongly pressed by passengers. |
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Attendant Service
The operating mode of an elevator can be switched to attendant service from the normal full-automatic operation by activating the override switch as and when required. This switch is installed on the maintenance recess panel, which is located on the lower part of the car operating panel.
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Door Photosensor
This versatile door safety device re-opens closing doors immediately when the double infrared beams installed on the car doors are interrupted. The doors will close again after re-opening.
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| Arrival Chime
All car calls are automatically cancelled to avoid unnecessary stops caused by registration of nuisance car calls when the number of car calls registered do not corelated with the car load detected by load switches at the bottom of the lift. |
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Fireman Operation
The firemen's switch is usually installed at the elvator main lobby. When it is activated, all car and hall calls are automatically cancelled and all elevators in the same bank will return immediately to the main lobby. The doors will be opened to allow passengers to disembark. Subsequently, the fireman's elevator responds only to car calls; the purpose of this mode of operation is to facilitate fire rescue and fire fighting operations.
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Password Access
Access to change the lift operating parameters inside the main controller board is controlled by password. There are 3 levels of password access. The first level is for service technicians, second level for service supervisors and third level for testers. Only authorised personnel with the correct password can modify the lift parameter settings for maintenance, modification or lift testing purposes.
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Next Landing
The lift will automatically stop at the next closest landing if the landing door at the intended landing cannot open due to malfunction or blockage.
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| Independent Operation
The lift can be used exclusively by the lift attendant when serving executive or VIP passenger. The lift will respond to car calls only. This mode of operation can be activated by a switch in the maintenance recess panel which is located on the lower part of the car operating panel.
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| Fault Records
The main microprocessor can identify up to 130 types of lift failure root causes to assist maintenance personnel in trouble shooting when lift fail in operation.
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| Emergency Power Operation
When normal power supply fails, this feature will direct each elevator automatically to a specific floor (normally, the elevator main lobby) one by one, powered by the building's standby generator. When the elevator car arrives at the specified floor, the door will open to allow passengers to disembark and then the elevator will shut down. Normally, the fireman's lift or more designated elevators can respond to car and hall calls under the normal operation mode but powered by the building standby generator.
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Group Control System
The group control system for two or more elevators employs artificial intelligence and fuzzy logic. The highest refined knowledge and experience harnessed in the field of group control have been incorporated into the microprocessors, allowing car assignments to the most used location and thereby providing superb elevators efficiency and optimum service.
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Continuity of Service
The system will exclude an elevator from the assignment of hall calls when the car cannot respond to the calls registered. Another car in the group will operate as a backup for the excluded car to ensure continuity of service to all hall calls. |
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Automatic Parking
During off-peak hours, after the elevator cars have been dormant with doors closed for a predetermined amount of time, the system disperses each car to a designated location (main floor and upper floor), thus allowing more efficient service to future hall calls.
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| Peak Traffic Control
To alleviate traffic congestion at the main floor, cars are automatically assigned to the floor where traffic is heaviest.
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Non-Service of Specified Floor
A key switch can be installed on the maintenance recess panel, which is located on the lower part of the car operating panel, to suspend elevator service to specified floor(s) when activated. This feature allows the client to selectively suspend elevator service to selected floors for various reasons such as unoccupied floors, after office hours operation or even for sercurity reasons.
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| Passenger–Sensing Doors
A sensor can be mounted above the car entrance to monitor passengers boarding or existing the car. With this sensor, the elevator can control the opening / closing time of the doors more efficiently, effectively reducing travel and waiting times.
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Ultrasonic Door sensor
An ultrasonic sensor mounted above the car entrance is capable of detecting passengers or objects near the elevator entrance and keeps the doors open as long as required. Unnecessary open/close cycles are eliminated. Doors are closed promptly when no passengers are detected, to increase operating efficiency.
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Hall Lantern
Hall lanterns on each floor will flash to indicate elevator car arrival and service direction to passengers waiting at the elevator lobby. The flashing hall lantern is intended to indicate to waiting passengers the elevator in a bank that will arrive to service the particular floor and the direction of its travel.
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Auxiliary Car Operating Panel
An auxiliary car operating panel can be installed on the unoccupied front return panel in large capacity elevators or elevators in high occupancy buildings to provide easier access to passengers in the car. Special auxiliary car operating panels with features catered to the handicapped are also available upon request.
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| AutomaticRescue Device (ARD)
During normal power supply fails, the Automatic Rescue Device (ARD) converts stored energy from its bank of rechargeable batteries to drive the elevator car to the nearest floor and open the elevator doors to let passenger out. The ARD optimize the use of the stored battery power by selecting the direction of which requires the least effort. (This device is suitable for those buildings without an emergency power source allocated for the elevator.) |
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| Supervisory Panel
With this panel, the building superintendent can monitor elevator operations and control emergency operations from the building's control room. Position indicators, direction lights and interphone set can be installed on this panel if requested. Additional features can also be accommodated where possible.
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Pre-level Opening
The lift doors will open in advance before levelling within approximately +/- 150mm of the landing floor. This wil reduce waiting time. This feature is suitable for use in office buildings.
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Earthquake Emergency
When the shock of the earthquake is detected by seismic device installed in the machine room, the lift will return to the main lobby and open its doors to allow passengers to disembark.
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| Voice Synthesizer
A voice synthesizer can be installed inside the lift car to broadcast information such as floor numbering, welcome messages, etc to passengers. |
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Key Switch Parking Operation
When the lift is not being used, it can be parked at a designated parking floor by using a key switch installed at the hall call button faceplate. |
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| Card Access System
To prevent access by unauthorised persons, a card access reader can be installed to allow only passengers with valid cards to use the lift or to access to certain floors.
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Lift Monitoring System
This system comprising of monitoring software and computer is able to monitor the elevator operation status and the lift breakdown analysis. The computer can be used to send commands such as parking and fire emergency to lift controller.
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Monochrome Liquid Crystal Display (LCD)
This display is installed in the Car Operating Panel and Hall Position Indicators in place of the normal dot matrix display. It provides a monochrome graphical representation of lift position, directional arrows, date, time and messages.
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Full Colour Liquid Display (LCD)
This full colour display is a high end, sophisticated display crystal system customized to show different effects like three dimensional arrows, floor legends, floor directories, analog clock face, digital clock, date, time and messages. It is installed in the Car Operating Panel and Hall Position Indicators in place of the normal dot matrix display.
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