Elevator Drive System
Your Professional Elevator Drive System Supplier
STEP Electric Corporation is an industrial inverter supplier with research and development centers and manufacturing bases in both China and Germany.
Why choose us
Our Certifications
The product meets the EN81-20 safety standard, ensuring compliance with European
elevator regulations. It is also CE certified, confirming adherence to European
health, safety, and environmental protection standards. The product follows ISO
standards, guaranteeing quality and consistency. It has passed TÜV certification,
indicating it meets rigorous safety and quality requirements. Additionally, it holds
the CCC certification, proving compliance with Chinese safety standards.
Furthermore, it is recognized with the Q+ Plus certification, showcasing its
high-quality performance.
Sales Market
Our products and services are widely welcomed by customers in over fifty countries
and regions, including Germany, Malaysia, Vietnam, Indonesia, Singapore, Australia,
India, Turkey, Kenya, South Africa, and many others.
Multi-language Support
Yixin International is a comprehensive international trading company with
multi-language business support, including English, Spanish, Russian, and others.
An Elevator Drive refers to the system that controls the elevator motor’s operation, including its acceleration, deceleration, and speed control. It is typically a combination of an electric motor (often an AC motor or DC motor) and an associated control system. This drive system regulates the elevator’s movement by converting electrical energy into mechanical energy, which moves the elevator car between floors.
Elevator drives are used in both traction elevators (which use ropes and pulleys to lift the car) and hydraulic elevators (which use a piston to lift the car). However, the most common drive systems today are traction drives, which are more energy-efficient and capable of handling high-rise buildings with multiple floors.
Specification Data
|
Model AS320 |
Rated capacity (kVA) |
Rated output current (A) |
Adaptation rated power of motor (kW) |
Model AS320 |
Rated capacity (kVA) |
Rated output current (A) |
Adaptati rated power of motor (kW) |
|
200V-level frequency converter |
400V-level frequency converter |
||||||
|
2S01P1 |
2.3 |
6.0 |
1.1 |
4T01P1 |
2.7 |
3.5 |
1.1 |
|
2S02P2 |
4.6 |
12 |
2.2 |
4T02P2 |
4.7 |
6.2 |
2.2 |
|
2S03P7 |
6.9 |
18 |
3.7 |
4T03P7 |
6.9 |
9 |
3.7 |
|
2S05P5 |
9.5 |
25 |
5.5 |
4T05P5 |
8.5 |
13 |
5.5 |
|
2S07P5 |
12.6 |
33 |
7.5 |
4T07P5 |
14 |
18 |
7.5 |
|
2S00P11 |
17.9 |
47 |
11 |
4T0011 |
18 |
27 |
11 |
|
2S00P15 |
23 |
60 |
15 |
4T0015 |
24 |
34 |
15 |
|
2S18P5 |
29 |
75 |
18.5 |
4T18P5 |
29 |
41 |
18.5 |
|
2S00P22 |
32 |
80 |
22 |
4T0022 |
34 |
48 |
22 |
|
4T0030 |
50 |
65 |
30 |
||||
|
4T0037 |
61 |
80 |
37 |
||||
|
4T0045 |
74 |
97 |
45 |
||||
|
4T0055 |
98 |
128 |
55 |
||||
|
4T0075 |
130 |
165 |
75 |
||||
Technical Indicators
|
Item |
Indicators |
|
|
Maximum output voltage |
Input voltage |
|
|
Input power supply |
Number of phases, voltage, and frequency |
200V-level: ≤3.7kW single phase or three phase 220V 50/60Hz; > 3.7 kW three phase 220V, 50/60Hz 400V-level: Three phase 380V, 50/60Hz |
|
Voltage range |
-15%-+10% |
|
|
Frequency range |
-5%~+5% |
|
|
Instantaneous voltage drop |
200V-level: Input voltage < AC180V, low-voltage protection
after 15 ms running |
|
|
Control features |
Control mode |
Close loop vector control |
|
Overload capacity |
Zero speed, 150%;< 3Hz,160%; > 3Hz, 200% |
|
|
Braking torque |
150% (External brake resistor), built-in brake unit |
|
|
Protection grade |
IP20 |
|
|
Installation mode |
Installed in the cabinet |
|
Smooth Operation
The most significant benefit of modern elevator drives is the smooth, jerk-free
operation of the elevator. Passengers experience a more comfortable ride, as the
elevator accelerates and decelerates smoothly.
Energy Efficiency
Elevator drives optimize the motor’s performance, reducing energy consumption by
adjusting the motor’s speed based on the load. Regenerative braking also
contributes to energy savings by returning power to the grid.
Cost Savings
By improving energy efficiency and reducing wear on the system, elevator drives help lower operating and maintenance costs. The energy savings from regenerative braking alone can result in significant cost reductions over time.
Reliability and Longevity
Elevator drives improve the overall reliability of the system by providing precise motor control and minimizing mechanical stress on the motor and other components. This increases the lifespan of the elevator system and reduces the need for frequent maintenance.
Environmental Benefits
The energy-efficient operation of elevator drives contributes to a building’s overall sustainability. By using less power and recovering energy during braking, elevator drives help reduce the building’s carbon footprint and lower its overall energy demand.
Types of Elevator Drive System
AC (Alternating Current) Elevator Drives
AC drives are widely used in modern elevator systems due to their simplicity,
reliability, and energy efficiency. AC elevator drives are controlled by Variable
Frequency Drives (VFDs), which adjust the speed and torque of the motor based on the
load and speed requirements of the elevator. AC drives are ideal for both low and
high-rise buildings, offering smooth, quiet operation and reduced energy
consumption.
DC (Direct Current) Elevator Drives
Although less common than AC drives, DC elevator drives are still used in some
applications. These systems use DC motors, which are highly responsive and provide
excellent speed control. DC elevator drives are often used in older buildings or in
situations where precise speed control and torque are necessary. However, DC motors
generally require more maintenance than AC motors.
Gearless Elevator Drives
Gearless traction drives are becoming increasingly popular in modern elevator
systems, especially in high-rise buildings. In a gearless system, the motor directly
drives the sheave (the pulley system), eliminating the need for a gearbox. This
results in quieter, more efficient operation, with fewer moving parts that require
maintenance.
Geared Elevator Drives
In geared elevator drives, the motor is connected to the sheave via a gearbox, which
provides a mechanical advantage and enables slower motor speeds. These drives are
less efficient than gearless drives but are still commonly used in low- to mid-rise
buildings where space and cost are more critical factors.
Hydraulic Elevator Drives
Hydraulic elevator drives use a pump, motor, and fluid (usually oil) to move the
elevator car. The motor drives the pump, which moves hydraulic fluid into a
cylinder, pushing the elevator car upwards. While hydraulic elevators are ideal for
low-rise buildings (typically under 8 floors), they are less energy-efficient than
traction systems and require more space due to the hydraulic system components.
Key Functions of an Elevator Drive System
An elevator drive performs several important functions to ensure the smooth and efficient operation of the elevator system:
Speed Control
The primary function of an elevator drive is to control the speed of the elevator.
By adjusting the input frequency (in the case of AC drives) or the voltage (for DC
drives), the drive system determines how quickly the motor accelerates and
decelerates the elevator car.
Torque Control
The elevator drive also manages the torque required to move the elevator car. Torque
control ensures that the elevator can move smoothly, even under varying loads, such
as when there are different numbers of passengers or when the elevator is at
different stages of travel.
Smooth Start and Stop
Modern elevator drives ensure that the elevator starts and stops smoothly without
jerking or abrupt movements. This is achieved through soft-start and soft-stop
technologies, which gradually ramp up or slow down the motor’s speed, ensuring
comfort and reducing wear on the system.
Energy Efficiency
An elevator drive helps optimize energy use by adjusting the motor speed and power
based on the load. For example, when the elevator is lightly loaded or moving
downward, the drive reduces the power supplied to the motor, leading to lower energy
consumption.
Regenerative Braking
Many modern elevator drives incorporate regenerative braking technology, which
allows the elevator to recover energy during deceleration. This energy is then
returned to the building’s electrical grid, reducing overall energy consumption and
making the elevator system more environmentally friendly.