PMR355 Gearless machine for high-rise elevators
Gearless machine PMR355 for high-rise elevators
Main specification Travel height
max. 200 m *)
Rated speed
2.5 m/s - 4 m/s
Rated load (car)
max. 2000 kg
Roping
2:1
Code compliance
Global
*) Maximum travel height according to drive calculation
Gearless machine PMR355
Features & Benefits Energy savings
Energy savings approx. amounting to 15 - 25 % can be achieved compared with an asynchronous gearless machine of same application range. The exact savings depend on the actual elevator configuration, system utilization and type of frequency inverter.
Reduced system costs
Due to a higher degree of efficiency, the overall system costs can be lower such as smaller frequency inverter, depending on the actual elevator configuration and system utilization.
High reliability
Proved by design review by technical university regarding best practice. Proved by long term test run up to 10 mio. load cycles.
Short installation time
The machine is tested in the factory and delivered fully assembled including machine frame and leveling units (secondary sheave separate).
Compact design
Min. dimensions to pass through standard machine room doors > 950 mm.
Optimized dimensions
Overall dimensions do not exceed the corresponding hoistway dimensions.
Optimized ride quality
Ride quality optimized by a) Constructive measures, b) Consideration of overall system requirements and c) First-priority consideration in production
Characteristics Weight with secondary sheave
2’040 kg
Weight without secondary sheave 1’780 kg Number of starts per hour
240
Degree of protection
IP21
Rated motor output
max. 53 kW
Rated voltage of motor
340 / 460 V
Frequency
50 / 60 Hz
Height to center line of motor shaft
355 mm
Traction sheave –– Wrapping –– Diameter –– Width
double 440 mm 225 mm
Diameter of suspension ropes
11 mm
Distance of rope falls
800 mm - 1275 mm
Number of ropes
max. 8
Number of rope grooves
16
Roping
2:1
Shape of grooves
Semicircular
Gearless machine PMR355 Dimensions
960
1177
1042
Description
–– –– –– –– ––
Frequency controlled three-phase permanent magnet synchronous motor Double wrap traction sheave with semi circular grooves and integral brake drum Dual circuit spring applied; electro-magnetically released Compliance with ISO 14000 for environmental requirements Mechanical safety factor 8 for steel and 10 for cast iron, based on ASME A17.1-2000
Externally mounted items –– The motor cooling fan –– Secondary sheave to provide double wrap and distance between falls of rope –– Sinewave generator for current speed feedback Manual emergency operating devices (for moving the car in case of power failure) –– Worm wheel with worm shaft, housed in a detachable box (manual drive assembly) –– Separate hand wheel –– Brake release lever
Gearless machine PMR355 Application Range
Note: The table above represents the general application range and only considers the travel height and rated load of the car. The selection of the correct machine must be determined for each case. The gross weight of the car and the rated speed have to be taken into account.
Schindler Elevator Ltd. Top Range Division Zugerstrasse 13 CH-6030 Ebikon Phone: +41 41 445 31 31 Fax: +41 41 445 36 69
[email protected] www.schindler.com
