Page 8 - ZEN SERIES

1.Permanent magnet synchronous gearless traction machine

The joint-lapped core built into the PM motor of the traction machine features flexible
joints. The iron core acts like a hinge, which allows coils to be wound around the core
more densely, resulting in improved motor efficiency and compactness. A high-density
magnetic field is produced, enabling lower use of energy and resources and reduced CO2
emissions.

Cylindrical gearless traction machine with
Permanent Magnet-type synchronous motor
(PM motor) comes with high efficient inverter
control which conserves energy by improving

power efficiency.
A specially developed PM motor unit controlled
by Inverter for doors and a direct drive method
is employed to achieve higher energy efficiency
and smoother door opening and closing motions.
material and fully combine coaxial transmission
technology and digital variable frequency

technology with group computer

We choose rare earth material & fully combine coaxial transmission technology &
digital variable frequency technology with group computer combined control
technology. With less running cost & less energy dissipated.
Compared with the ordinary & traditional technology, gearless traction machine.
can save more than 33% of energy, Gearless traction machine needs no renewal
of lubricant without grease pollution, low noise, quiet & natural.

2.Advance VVVF Drive System

Variable Voltage Variable Frequency (VVVF) Lift Drive employs frequency inverter
technology which regulates input voltage and frequency throughout the journey, drawing
much less current during acceleration and deceleration. When compared with other
modes of drives, one can see that the VVVF drive offers low starting current, high power
with good ride quality and floor leveling. It can reduce motor starting currents by as much
as 50 to 80% compared with conventional motor drives. Further, wear and tear of the
equipment can also be less during start/stop of the motor by using VVVF motor drive.

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