Product Description
Electrical DC Brushless Motor
Product Brief
E-MAX motor is the special designed permanent magnet synchronous motor based on the IEC norm. E-MAX PMSM will be used for next generation which need more energy saving product. Exceed IE4 variable speed AC motor (IEC60034-30-2-2016).
E-MAX motor is the first generation of CHINAMFG EC motor. E-MAX has led to develop the next generation of technology in motor efficiency and performance.
E-MAX motor contain 2 series:
E-Max commercial
IEC Frame 71 to 90 permanent magnet synchronous motor integrated drive
E-Max Industrial
IEC Frame 71 to 132 permanent magnet synchronous motor
E-Max Commercial series (ECI series)
| Model | Frame | Rated | Output | Output | Maximum |
| size | torque | @1500rpm | @3000rpm | speed | |
| (Nm)** | (kW) | (kW) | (rpm) | ||
| T71ECI01X36 | 71 | 1.2 | 0.2 | 0.41 | 3600 |
| T71ECI02X36 | 2.4 | 0.41 | 0.82 | 3000 | |
| T71ECI03X18 | 3.2 | 0.55 | – | 1800 | |
| T90ECI03X36 | 90 | 3.2 | 0.55 | 1.1 | 3600 |
| T90ECI05X30 | 4.8 | 0.75 | 1.5 | 3000 | |
| T90ECI07X18 | 7 | 1.1 | – | 1800 |
** The rated torque is based on the motor cooling method. The detail torque please see data sheet.
E-Max Commercial Motor Drive Function
CW/CCW chooseStart-stop terminal0-10VDC speed controlRS485 ModbusSpeed hand control by adjustable resistanceSpeed feedback
E-Max Industrial series (EC series)
| Model | Frame | Rated | Output | Output | Maximum |
| size | torque | @15000rpm | @3000rpm | speed | |
| (Nm)** | (kW) | (kW) | (rpm) | ||
| T71EC01X36 | 71 | 1.2 | 0.2 | 0.41 | 3600 |
| T71EC02X36 | 2.4 | 0.41 | 0.82 | 3600 | |
| T71EC03X36 | 3.2 | 0.55 | 1.1 | 3000 | |
| T90EC03X36 | 90 | 3.2 | 0.55 | 1.1 | 3600 |
| T90EC05X36 | 4.8 | 0.75 | 1.5 | 3600 | |
| T90EC07X36 | 7 | 1.1 | 2.2 | 3600 | |
| T100EC10X36 | 100 | 9.5 | 1.5 | 3 | 3600 |
| T100EC14X36 | 14 | 2.2 | 4 | 3600 | |
| T100EC19X30 | 19.1 | 3 | 5.5 | 3000 | |
| T132EC26X30 | 132 | 25.5 | 4 | 7.5 | 3000 |
| T132EC35X30 | 35 | 5.5 | 11 | 3000 | |
| T132EC48X30 | 47.7 | 7.5 | 15 | 3000 | |
| T132EC59X30 | 58.9 | 9.2 | 18.5 | 3000 | |
| T132EC70X30 | 70 | 11 | 22 | 3000 |
** The rated torque is based on the motor cooling method. The detail torque please see data sheet.
Efficiency class
E-MAX motor has ultra-high efficiency both at full load and light load. The flat efficiency curve can save more energy when the motor drive the fan or pump in CHINAMFG field.
Compare to IE4 motor efficiency class E-MAX
E-Max Commercial series
** System efficiency include the motor and drive efficiency.
E-Max Industrial series
** Efficiency is only motor efficiency.
Model number nomenclature
T 90 EC 03 V 36 C2 B14 P T1
1 2 3 4 5 6 7 8 9 10
| Position | Character | Description |
| 1 | “T” | Product platform |
| 2 | “90” | Frame size: IEC 90# |
| 3 | “EC” | EC: permanent magnet motor ECI: permanent magnet motor with integrated drvie |
| 4 | “03” | Rated torque |
| 5 | “V” | Cooling method: |
| G = General purposes, with fan and fan hood. IC411 | ||
| V = Ventilation applications, without fan and fan hood. | ||
| 6 | “36” | Maximum speed: 3600 rpm |
| 7 | C2 | Power line connection method: T1 = Terminal box on top T2 = Terminal box on NDE C1 = No terminal box, power line from housing C2 = No terminal box, power line from NDE |
| 8 | B14 | Mounting method: B3, B14, B5, B34, B35 |
| 9 | P | P = Slid rail |
| 10 | T1 | Voltage code: T1: 3 phase 360-440 V T2: 3 phase 200-240 V S1: 1 phase 200-240 V S2: 1 phase 115 V |
VFD consideration
PMSM must drive by the VSD. The motor cannot connect to the normal AC power directly. The VSD can be the commercial drive with vector control or PM motor control mode. VSD need to be set up the correct motor parameter (see below table). The detail parameters can be find in the model data sheet.
Power choose consideration
The power and torque in above model list is the rated power or torque when the motor has not any cooling method (IC410). If the motor cooled by the wheel or the load the motor power can be larger. The detail running range please see detail model data sheet. Below chart is a sample to decide the power at different cooling condition.
Technology
- Experienced on the fan, pump, compressor and motion application with permanent magnet motor design
- Motor model building and simulation, performance calculation, noise optimization
- Motor material database: silicon steel, magnet, copper, aluminum
- High precision test equipment and instrument
Manufacturing and quality control
- Automatic winding machine to get better consistency
- Electrical test equipment
- Magnetic flux checking
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| Application: | Universal, Industrial |
|---|---|
| Operating Speed: | Adjust Speed |
| Excitation Mode: | Permanent Maganetic |
| Function: | Control, Driving |
| Casing Protection: | Closed Type |
| Structure and Working Principle: | Brushless |
| Samples: |
US$ 300/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
|
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What are the key differences between brushed and brushless DC motors?
Brushed and brushless DC motors are two distinct types of motors that differ in their construction, operation, and performance characteristics. Here’s a detailed explanation of the key differences between brushed and brushless DC motors:
1. Construction:
Brushed DC Motors: Brushed DC motors have a relatively simple construction. They consist of a rotor with armature windings and a commutator, and a stator with permanent magnets or electromagnets. The commutator and brushes make physical contact to provide electrical connections to the armature windings.
Brushless DC Motors: Brushless DC motors have a more complex construction. They typically consist of a stationary stator with permanent magnets or electromagnets and a rotor with multiple coils or windings. The rotor does not have a commutator or brushes.
2. Commutation:
Brushed DC Motors: In brushed DC motors, the commutator and brushes are responsible for the commutation process. The brushes make contact with different segments of the commutator, reversing the direction of the current through the armature windings as the rotor rotates. This switching of the current direction generates the necessary torque for motor rotation.
Brushless DC Motors: Brushless DC motors use electronic commutation instead of mechanical commutation. The commutation process is managed by an external electronic controller or driver. The controller determines the timing and sequence of energizing the stator windings based on the rotor position, allowing for precise control of motor operation.
3. Efficiency:
Brushed DC Motors: Brushed DC motors tend to have lower efficiency compared to brushless DC motors. This is primarily due to the energy losses associated with the brushes and commutation process. The friction and wear between the brushes and commutator result in additional power dissipation and reduce overall motor efficiency.
Brushless DC Motors: Brushless DC motors are known for their higher efficiency. Since they eliminate the use of brushes and commutators, there are fewer energy losses and lower frictional losses. The electronic commutation system allows for precise control of the motor’s operation, maximizing efficiency and reducing power consumption.
4. Maintenance:
Brushed DC Motors: Brushed DC motors require regular maintenance due to the wear and tear of the brushes and commutator. The brushes need periodic replacement, and the commutator requires cleaning to maintain proper electrical contact. The maintenance requirements contribute to additional costs and downtime for brushed DC motors.
Brushless DC Motors: Brushless DC motors have a relatively maintenance-free operation. As they do not have brushes or commutators, there is no need for brush replacement or commutator cleaning. This results in reduced maintenance costs and increased reliability of brushless DC motors.
5. Speed Control:
Brushed DC Motors: Brushed DC motors offer simpler speed control options. The speed can be controlled by adjusting the applied voltage or by varying the resistance in the armature circuit. This allows for relatively straightforward speed regulation.
Brushless DC Motors: Brushless DC motors provide more advanced and precise speed control capabilities. The speed can be controlled through the electronic commutation system by adjusting the timing and sequence of the stator windings’ energization. This allows for precise control of the motor’s speed and acceleration.
These key differences between brushed and brushless DC motors make each type suitable for different applications depending on factors such as efficiency requirements, maintenance considerations, and control complexity.
How is the efficiency of a DC motor determined, and what factors can affect it?
In a DC (Direct Current) motor, efficiency refers to the ratio of the motor’s output power (mechanical power) to its input power (electrical power). It is a measure of how effectively the motor converts electrical energy into mechanical work. The efficiency of a DC motor can be determined by considering several factors that affect its performance. Here’s a detailed explanation of how the efficiency of a DC motor is determined and the factors that can influence it:
The efficiency of a DC motor is calculated using the following formula:
Efficiency = (Output Power / Input Power) × 100%
1. Output Power: The output power of a DC motor is the mechanical power produced at the motor’s shaft. It can be calculated using the formula:
Output Power = Torque × Angular Speed
The torque is the rotational force exerted by the motor, and the angular speed is the rate at which the motor rotates. The output power represents the useful work or mechanical energy delivered by the motor.
2. Input Power: The input power of a DC motor is the electrical power supplied to the motor. It can be calculated using the formula:
Input Power = Voltage × Current
The voltage is the electrical potential difference applied to the motor, and the current is the amount of electrical current flowing through the motor. The input power represents the electrical energy consumed by the motor.
Once the output power and input power are determined, the efficiency can be calculated using the formula mentioned earlier.
Several factors can influence the efficiency of a DC motor:
1. Copper Losses:
Copper losses occur due to the resistance of the copper windings in the motor. These losses result in the conversion of electrical energy into heat. Higher resistance or increased current flow leads to greater copper losses and reduces the efficiency of the motor. Using thicker wire for the windings and minimizing resistance can help reduce copper losses.
2. Iron Losses:
Iron losses occur due to magnetic hysteresis and eddy currents in the motor’s iron core. These losses result in the conversion of electrical energy into heat. Using high-quality laminated iron cores and minimizing magnetic flux variations can help reduce iron losses and improve efficiency.
3. Friction and Windage Losses:
Friction and windage losses occur due to mechanical friction between moving parts and air resistance. These losses result in the conversion of mechanical energy into heat. Proper lubrication, efficient bearing systems, and aerodynamically optimized designs can help minimize friction and windage losses.
4. Brush and Commutator Losses:
In brushed DC motors, brush and commutator losses occur due to the friction and electrical resistance at the brush-commutator interface. These losses result in the conversion of electrical energy into heat. Using high-quality brushes and commutators, reducing brush voltage drop, and minimizing the number of commutator segments can help reduce these losses.
5. Magnetic Field Design:
The design of the magnetic field in the motor significantly affects its efficiency. Optimizing the magnetic field for the specific application, such as selecting appropriate magnet materials or designing efficient electromagnets, can improve the motor’s efficiency.
6. Motor Load:
The load on the motor, including the torque and speed requirements, can impact its efficiency. Operating the motor close to its optimal load conditions or utilizing speed control techniques, such as pulse width modulation (PWM), can help improve efficiency by reducing unnecessary power consumption.
7. Motor Size and Construction:
The size and construction of the motor can influence its efficiency. Properly sizing the motor for the intended application and optimizing the design for reduced losses, improved cooling, and efficient heat dissipation can enhance overall efficiency.
It’s important to note that the efficiency of a DC motor is typically highest at or near its rated load conditions. Deviating significantly from the rated load can result in reduced efficiency.
In summary, the efficiency of a DC motor is determined by comparing the output power to the input power. Factors such as copper losses, iron losses, friction and windage losses, brush and commutator losses, magnetic field design, motor load, and motor size and construction can all influence the efficiency of a DC motor. By considering and optimizing these factors, the overall efficiency of the motor can be improved.
Where can individuals find reliable resources for learning more about DC motors and their applications?
Individuals seeking reliable resources to learn more about DC (Direct Current) motors and their applications can explore various sources that provide comprehensive and accurate information. Here’s a detailed explanation of where individuals can find reliable resources for learning about DC motors:
1. Manufacturer Websites:
Many DC motor manufacturers have dedicated sections on their websites that provide detailed information about their products, including specifications, application notes, technical guides, and whitepapers. These resources offer valuable insights into the design, operation, and application considerations of DC motors. Examples of reputable DC motor manufacturers include Baldor, Maxon Motor, and Faulhaber.
2. Industry Associations and Organizations:
Industry associations and organizations related to electrical engineering, automation, and motor technology can be excellent sources of reliable information. Examples include the Institute of Electrical and Electronics Engineers (IEEE) and the American Society of Mechanical Engineers (ASME). These associations often provide access to technical publications, research papers, conferences, and educational resources related to DC motors and their applications.
3. Technical Books and Publications:
Technical books and publications authored by experts in the field of electrical engineering and motor technology can provide in-depth knowledge about DC motors. Books such as “Electric Motors and Drives: Fundamentals, Types, and Applications” by Austin Hughes and “Practical Electric Motor Handbook” by Irving Gottlieb are widely regarded as reliable resources for learning about DC motors and their applications.
4. Online Educational Platforms:
Online educational platforms offer a wealth of resources for learning about DC motors. Websites like Coursera, Udemy, and Khan Academy provide online courses, tutorials, and video lectures on electrical engineering, motor theory, and applications. These platforms often have courses specifically dedicated to DC motors, covering topics such as motor principles, control techniques, and practical applications.
5. Research Papers and Scientific Journals:
Research papers published in scientific journals and conference proceedings can provide detailed insights into the latest advancements and research findings related to DC motors. Platforms like IEEE Xplore, ScienceDirect, and Google Scholar can be used to search for scholarly articles on DC motors. These papers are authored by researchers and experts in the field and provide reliable and up-to-date information on various aspects of DC motor technology.
6. Online Forums and Communities:
Online forums and communities focused on electrical engineering, motor technology, and DIY projects can be valuable resources for learning about DC motors. Platforms like Reddit, Stack Exchange (Electrical Engineering section), and specialized motor forums provide opportunities to ask questions, engage in discussions, and learn from experienced individuals in the field. However, it’s important to verify information obtained from online forums as they may contain a mix of opinions and varying levels of expertise.
When accessing these resources, it’s essential to critically evaluate the information and cross-reference it with multiple sources to ensure accuracy and reliability. By utilizing a combination of manufacturer websites, industry associations, technical books, online educational platforms, research papers, and online communities, individuals can gain a comprehensive understanding of DC motors and their applications.
editor by CX 2024-04-10