OTIS

Com

fort

GeN2™ Comfort lift. Taking ride quality to a higher level.

A machine roomless sys-

tem with unsurpassed

levels of comfort, reliability,

safety and environmental

protection.

Using a unique polyurethane-coatedsteel belt drive system – a revolutionarytechnology invented and patented byOtis – the GeN2 Comfort system providesa highly efficient and cost-effectivesolution ideally suited for residentialand commercial markets.

The GeN2 Comfort system enablesarchitects greater freedom of designand builders benefit from a more controlledinstallation process with minimum buildinginterface. Developers and owners canmanage the building more economicallyand, moreover, benefit from increasedrentable space.

GeN2 Comfort lift

KEY COMPONENTS:

➊ Flat, polyurethane-coated steel belts

➋ Gearless machine with PM Synchronous motor

➌ Closed-loop variable frequency control

➋

➊

➌

The coated steel reinforced belt:technology that re-invents an industry.

In the year 2000, the GeN2 drive system – an innovation

developed and patented by Otis – transformed the lift

industry by replacing the conventional traction steel

rope with a flexible polyurethane-coated steel belt.

This pioneering advance complies with all relevant

EU lift regulations.

Com

fort

Otis GeN2 Comfort system: The Benefits

➊ Replacing conventional steel ropes with smooth, polyurethane-coated

steel belt results in a quieter and smoother ride.

➋ A gearless machine controlled by a closed loop variable frequency drive

provides a comfortable ride with outstanding stopping accuracy.

➌ A low-inertia gearless machine with a permanent magnet (PM) synchronous

motor means energy savings and reduced operating costs.

➍ The belts and gearless machine with sealed-for-life bearings require no

addition of oil or polluting lubricants and thus protect the environment.

➎ The interaction of the flat, coated steel belt with the smooth-surface

crowned sheaves results in reduced belt wear.

➏ A flexible belt means a more compact machine which removes the need

for a machine room and reduces building costs.

➐ Otis’ PULSE™ system continually monitors the status of the belt’s steel

cords 24h/7d.

➑ A patented battery-operated rescue system with electronic speed moni-

toring enables safe and fast rescue of a trapped passenger in the event

of a power failure.

➒ With the machine on the rails, loads are transferred down to the pit thereby

improving interface and reducing structural building costs.

➓ GeN2 Comfort technology enables rapid, safe and controlled installation

that doesn’t interfere with other building trades.

� CONVENTIONAL STEEL ROPES

The stiffness of conventional steel ropes requires a largebending radius.

� FLEXIBLE STEEL BELTS

The polyurethane-coated flat steel belt is up to 20% lighterand lasts up to 3 times longer than conventional ropes. Itsflexibility results in a much smaller bending radius.

� COMPACT GEARLESS MACHINE

A sheave - which can be as small as 8 cm in diameter -hasallowed Otis to design a machine that is up to 70% smallerthan conventional machines.

� MACHINE ROOM SYSTEM

In a conventional system, the large machine and controllerrequire a machine room typically positioned above the hoistway.All bearing loads are supported by the building structure.

� MACHINE ROOMLESS SYSTEM

The compact GeN2 gearless machine does not require amachine room and can be easily positioned on top of the carand counterweight rails. This means all bearing loads can betransferred to the pit, thus reducing structural building costs.

� CONVENTIONAL MACHINE

The broad bending radius of steel ropes requires a largemachine with a sheave that is typically 50-60 cm in diameter.

D d

The lift reimagined.

Conventional Geared Lift With GeN2 Technology

Gearless machine withsealed-for-life bearings andmaintenance-free brake disc.

Flat coated steel belt

Smooth crowned sheave

Cross section of a radial designmotor with embedded perma-nent magnets (PM).

The GeN2 Comfort system establishes newbenchmarks for comfort and performance.

VerticalVibration[milli-g] Horizontal

Vibration[milli-g]

In-Car Noise[dB(A)]

Interaction of Otis’ flat belt andthe smooth crowned sheave.

UNRIVALLED RIDE QUALITY

Replacing metal ropes with smooth flatbelts means a quieter and smoother rideEnhanced ride quality is achieved through thecombination of a number of factors: Otis’ flatpolyurethane-coated steel belt which eliminatesthe metal-to-metal effect of conventionalropes together with the specially designedcrowned-surface sheaves (with no twisting ofthe belt through 180°) results in quiet operation.The gearless machine combined with an analogload-weighing device and a closed-loop variablefrequency drive with vector control enable asmooth ride with outstanding stopping accuracy(within +/- 3 mm at every landing). Cumula-tively, these features have allowed Otis toachieve a quiet, smooth and comfortable rideexperience. With appropriate treatment of thehoistway walls, the low noise gearlessmachine mounted on isolation rubber padsreduces vibration to the building and keepsaverage noise levels in adjacent rooms tobelow 30 dB(A) - in compliance with strict EUbuilding regulations.

A HIGHLY EFFICIENT MACHINE

A flexible belt means a more compactmachine The low inertia gearless machine with sealed-for-life bearings is equipped with a highlyefficient PM synchronous motor of radialconstruction.

The result is a machine which is up to

• 50% more efficient than conventionalgeared machines.

• 10% more efficient than conventional gearless machines with induction asyn-chronous motors.

• 15% more efficient than other machineswith PM motors of axial constructiondesign.

50

25

12

45

28

12

75

65

53

Industry hydraulic system

Industry geared system

GeN2 Comfort system

GeN2 system protects the environment while reducing operating costs and increasingsystem reliability.

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0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

10 20 30 40 50 60 70 80 90 100

Percentage of load in the car.

Based on 630kg at 1,0 m/s and 150 starts per hour.

Rel

ativ

e en

ergy

con

sum

ed (

kw/h

)

Industry geared system

GeN2 Comfort system

ENVIRONMENTALLY FRIENDLY

Lubrication-free and more energy efficient Neither the belts nor the gearless machinewith sealed-for-life bearings require any formof polluting lubricants. The low-inertia gearless PM machine, controlledwith a closed-loop variable frequency drivewith vector control, results in:

• Substantial energy cost savings when com-pared with conventional machines.

• Reduction of power installed thereby reducingoperational cost.

• Lower starting and nominal currents thusreducing the feeder size lines and installationcosts.

Additionally, the VF drive suspend-mode featurefurther reduces energy consumption.

INCREASED RELIABILITY

Reliable by design and durable by construction The long-lasting coated steel belt, the smoothcrowned sheaves and the reduction of movingparts in the gearless machine dramaticallyreduce wear and increase durability.

Reliability and safety are further enhancedwith Otis’ PULSE electronic system whichcontinually monitors the status of the belt’ssteel cords 24h/7d. Contrary to current visualinspections of conventional steel ropes, theOtis PULSE system automatically detects andinforms Otis technicians on the quality of thebelt cords, thus eliminating downtime andgreatly enhancing the reliability of the inspection.

Otis’ PULSE system monitors the integrity of belt cords 24h/7d.

Otis GeN2 innovative features reflect our absolute commitment to safety.

Stopping accuracy: to within +/- 3 mm

LAMBDA 2D entranceprotection

SAFETY FEATURES

For lift users and service technicians

• Door Deterrent DeviceIf the car is stopped between floors, adeterrent device prevents the car door fromopening. Hence a person cannot take therisk of exiting.

• Hoistway Access DetectionTo protect a person entering the hoistway, aspecial safety feature prevents the lift fromoperating after a landing door has beenopened.

• Rescue SystemA patented, battery-operated rescue systemwith electronic speed monitoring enablesthe safe and fast rescue of trapped passengersin the event of a power failure.

• LAMBDA™ 2D – Entrance ProtectionA screen of infrared beams acts as an invisiblesafety curtain. When an obstacle breaksthis screen, the sensitive LAMBDA 2 systemdetects it and immediately reopens thedoors.

• Stopping AccuracyThe belt’s reduced stretch compared toconventional steel ropes together with aclosed loop VF control results in outstandingstopping accuracy (within +/-3 mm at everylanding).

• Machine Brake SystemTo further improve safety, the machine’sdual brake system is equipped with twoswitches to prevent the lift from movingbefore the brake is fully released.

RAPID INSTALLATION

A controlled process minimizes installation time and improves safetyWith all major components located inside thehoistway, the streamlined installation processof the GeN2 Comfort lift has minimal impacton building construction and other trades.

The machine is integrated on top of the railsthus virtually eliminating the interface with thebuilding. The car serves as a constructionplatform for rapid installation and alignment of rails.

Finally, the controller and drive are integratedinto a single cabinet which is factory pre-tested.

Load capacity (kg)

Passenger capacity

Car dimensions (mm) - Width x Depth

Speed

Maximum rise

Maximum number of stops

Machine

Drive

Control system

Cars in a group

Door opening Telescopic

width (mm) Centre opening

Door opening height (mm)

Car entrances

Power (3 phases + neutral)

Frequency

320 450 480 630 900 1000

4 6 6 8 12 13

800 x 1100 1000 x 1250 1000 x 1300 1100 x 1400 1400 x 1500 1100 x 2100

1.0 m/s

45 meters

16

Gearless with permanent magnet synchronous motor

Otis OVF Variable Frequency with closed loop vector control

MCS 220 TCBC modular control system

up to 3

700 800 800 - 900 800 - 900 900 800 - 900

800 800 - 900 900 800 - 900

2000 - 2100

1 or 2 (opposite)

400 volts ( + - 10% )

50 or 60 Hz

❚ The REM system (Remote ElevatorMonitoring) is the most advanced ofits kind for ensuring lift reliability.

❚ Twenty-four hours a day, the REMsystem continuously monitors liftfunctions – detecting deterioratingcomponents, intermittent anomalies,and small nuisances that might otherwisego unnoticed. It provides immediate,two-way voice communication betweenpassengers and trained Otis personnelat the OTISLINE™ centre, simultane-ously delivering greater peace ofmind.

❚ Otis maintenance systems reflect the philosophy that the best time toresolve problems is before they arise.Otis technicians pursue a rigorous serviceprogramme to meet a building’s require-ments. Working with the REM system’s24-hour monitoring capabilities, Otisservice technicians can more effec-tively locate performance anomalies andcorrect them before they affect liftservice.

❚ Otis has met the stringent ISO 9000international standards for qualityassurance. The control of processes,from design to manufacturing to fieldoperations, makes it possible to consistently produce and supply highquality lifts, while meeting customerspecifications.

❚ The entire GeN2 system – includingmachine, coated steel belts, brakes,controller and drive – has been testedworldwide. The system has weatheredconditions of extreme temperaturesand has withstood tests of thermalshock, voltage variations, powershortages and interruptions, andtransient power surges – representingvirtually every possible breakdown ofa building’s electrical system.

GeN2 Comfort lift - Specifications

SERVICE

QUALITY ASSURANCE AND TESTING

e*SERVICE

REM® MONITORING

❚ Through e*Service at www.otis.comcustomers with units under Otis servicecontract can have round-the-clockaccess to maintenance records, asnap-shot of the lift performance historyand fast verification of the work done.

Twenty-four-hour RemoteElevator Monitoring observes lift performance continuously

Service and quality assurance.The REM units send diagnostic

information to the OTISLINE centre.

Data are recieved by OTISLINE

specialists.

An OTISLINErepresentative alertsand briefs the field

technician, if necessary.

The technicianarrives with

appropriate diagnosis,tools and parts to begin work.

Op

tima, S

electa, Lumina

OPTIMA

The Optima car perfectly illustrates the principle that elegance can be achieved

through simplicity - provided it’s based on an inspired idea. With the Optima

design, that idea is embodied by the car operating panel actually illuminating the

car. Important to the car’s refined appearance are the panels themselves. In three

finishes, they are cheering to the eye and easy to maintain. In fact it is the balance

between the aesthetic and the practical that defines the Optima car.

Groundbreaking technology complemented by class leading aesthetics.

OPTIMA™

Prin

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Details of the product design are subject to change.