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MOTOR DRIVE CONTROLLER
- Applicable for 12V, 24V, 48V, 220V powered system
- Compact & lightweight design, ideal for system with space constraints
- Featuring precision control to regulate motor performance in real-time
- Offer customization, highly flexible and adaptable to various applications
- Built to withstand harsh environments and operate reliably over long periods of time
Motor Drive Controller
An Advanced Drive Board Offering Precision Control & High Efficiency
Motor drive controller ( PCB – drive board) is a device or group of device that are used to control the start, stop, and speed of an electric motor. They can either be manually operated or programmed to work automatically, with possible functions including selecting the rotational direction and speed, regulating or limiting torque, and stopping or starting the motor. A motor controller helps to protect the motor itself from overloading or electrical faults.
MOIR is an expert offering a portfolio of motor drive board of innovative, high-performance and economical compact thermal solutions. All our products (mini rotary compressors, liquid chiller modules, DC condensing units, micro air coolers) will be shipped with our patented motor drive controller ( PCB drive board).
MOIR’s drive board controller, is a universal low noise sinusoidal, variable speed drive. This allows the cooling capacity of the system to be regulated by increasing or decreasing the compressor speed. The motor controller supports 3 different control methods: UART communication control, Potentiometer resistance control, PWM control. The user can use one of these methods to control their refrigeration systems speed.
The compressor controller adopts T1 DSP 280025 as drive chip and FOC (Field Oriented Control ) 180° control method. The firmware has a minimum speed of 1800 RPM (condition-dependent) and a maximum speed of 6500 RPM. The compressor speed accuracy can control within ±10rpm, providing variable speed and load following capability for precise temperature control and high efficiency.
Offered in 24V, 48V, and 220V voltage input options, MOIR’s drive board are used in various applications to control the speed of pumps, fans, blowers, machine tools, electric vehicles, etc.
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Variable Frequency Inverter AC & DC Motor Drive Controller
Tailored for electronic systems powered by 12V, 24V, 48V, 220V voltage
24V Drive Board
- Applicable: 24V compressor
- Input current (max): 12A
- Input Power (max): 24V * 12A
- Speed Range: 1800~6500rpm
- Compressor speed accuracy: ±10rpm
- Input voltage ( rated): 24V DC
- Cooling model: Heat sink cooling
- Drive: Sine wave
- Communications: UART (Reserved)
- Controller size: 96 * 57 mm
- Heat sink size: 100 * 77 mm
48V Drive Board
- Applicable: 48V compressor
- Input current (max): 12A
- Input Power (max): 48V * 12A
- Speed Range: 1800~6500rpm
- Compressor speed accuracy: ±10rpm
- Input voltage ( rated): 48V DC
- Cooling model: Heat sink cooling
- Drive: Sine wave
- Communications: UART (Reserved)
- Controller size: 96 * 57 mm
- Heat sink size: 100 * 77 mm
220V Drive Board
- Applicable: 220V compressor
- Input current (max): 3A
- Input Power (max): 220V * 3A
- Speed Range: 1800~6500rpm
- Compressor speed accuracy: ±5rpm
- Input voltage ( rated): 220V DC
- Cooling model: Heat sink cooling
- Driving mode: Forward wave drive
- Communication: UART (Reserved)
- Operating Environment: -20℃ ~ 55℃
- Controller size: 140 * 100 mm
Motor Drive Controller Features & Advantages
Offers adjustable speed and varying loads for precise temperature regulation
Precision Control Drive
The drive board is designed with variable speed control, allowing for precise temeprature regulation. With speeds ranging from 1800rpm to 6500rpm and a speed accuracy of ±10rpm, you can tailor the cooling output to match your specific application needs. This ensures stable and consistent performance, even under varying loads and conditions.
Wide Operating Range
The DC drive controller supports a wide input voltage range, from 18V to 32V DC for 24V systems and from 41V to 65V DC for 48V systems. It can also withstand a max input voltage of up to 100V, ensuring compatibility with various power sources and applications. The drive board with 220V voltage input is optional to meet different needs.
Flexible Control Method
Supporting 3 different ways for compressor speed control, UART communication, PWM signal and Potentiometer resistance control, allowing the user adopting the optimal interface for seamless integration with their systems and devices. It provides greater convenience and flexibility.
Comprehensive Protection
The motor drive features a suite of protection functions, including software & hardware overcurrent protection, overvoltage & undervoltage protection, phase loss protection, etc.. These features work together to protect the compressor and extends its lifespan.
Drive Board for Compressor Control
Suited for DC & AC Powered Applications Covering the Ordinary to the Extraordinary
Our inverter drive board is specially designed for controlling the mini rotary compressors in micro refrigeration systems. It provides a compact and efficient solution for regulating the compressor’s speed and torue, ensuring stable and reliable operation. Besides of that, the drive board is applicable for other systems or devices matching the same function.
The drive board can be easily integrated into existing systems and devices, thanks to its simple and intuitive UART communication and PWM signal interface. This allows for seamless integration with microcontrollers, sensors, and other compoents, enabling advanced control and monitoring capabilities.
In addition, the AC & DC motor controller features a wide operating temperature range of -20℃ to 55℃, making it suitable for use in a variety of environments. Its heat sink cooling design ensures that the drive board remains cool and operates efficiently, even under high-load conditions.
Drive Board Features
The drive board, also known as motor controllers, are essential components in various electrical and electronic systems. They serve as the brains of the operation, controlling the performance and behavior of electric motors.
- Handle high power output, delivering required torque and speed
- Support UART communication, PWM, potentiometer speed control interface
- Precision control the speed of the motor, protect against overheating, overloading, and other potential issues
- Protect both the controller and the motor (compressor) from damage, safety and reliability
- Customization and programmability, highly flexible and adaptable to a wide range of applications
- Compact size and lightweight design, easy to install and integrate into existing systems
Drive Board Typical Applications
A motor drive board, specially designed to control the operation of motions, is a crucial component in numerous industries and applications. The controller supports 12V, 24, 48V DC, as well as 220V voltage input option for different selection.
- Electric vehicles
- Consumer electronics
- Industrial automation
- LCD monitors
- Audio equipment
- Industrial laser
- 3D printers
- Home applicance
- Advertising display
- Refrigeration & Air Conditioning
Drive Board Technology
The drive board(PCB) is designed and developed in-house, optimized for specific MOIR compressors.
With controller speed variability, the compressor can effectively load match to smooth and easy temperature adjustment. Thanks to this configuration, it allows the end user to precisely control the refrigeration & air conditioning system to the desired temperature and decrease operating costs.
The motor drive come with clear instructions and are equipped with terminals that make wiring and configuration straightforward, making them easy to install and integrate into the systems. Additionally, the motor controller is designed in compact size and light weight. This helps reduce the overal weight and footprint of the system, making it more efficient and cost-effective.
Motor Drive Controller Applications
At MOIR, we specialize in providing innovative and reliable compact cooling solutions tailored to customer’s specific needs, including mini DC compressors, mini chiller systems, and micro air conditioners. All of the products are shipped with the drive board, allowing it to adjust the compressor speed to regulate the cooling capacity of the system. The drive board is variable frequency sine wave designed, providing load following capability for precise temperature control and high efficiency.
Motor controllers are used with both direct current and alternating current motors. A controller includes means to connect the motor to the electrical power supply, and may also include overload protection for the motor, and over-current protection for the motor and wiring. A motor controller may also supervise the motor’s field circuit, or detect conditions such as low supply voltage, incorrect polarity or incorrect phase sequence, or high motor temperature. Some motor controllers limit the inrush starting current, allowing the motor to accelerate itself and connect mechanical load more slowly than a direct connection. Motor controllers may be manual, requiring an operator to sequence a starting switch through steps to accelerate the load, or may be fully automatic, using internal timers or current sensors to accelerate the motor.
Besides controlling the compressor of the cooling systems, the drive board controllers are designed to be versatile and compatible with a wide range of motors and systems. They can be configured to work with types of motors, including AC motors, and DC motors. Additionally, the controllers for electric motors are able to adjust the control algorithms, set speed, and configure communication protocols. This customization and programmability make them highly flexible and adaptable to a wide range of applications.
- Refrigeration & Air Conditioning
- Industrial Monitoring systems
- Lighting systems
- Audio equipment
- Automative Displays
- Household appliances
- Personal electronics
- Signage & Advertising
- Medical Imaging
- Military & Aerospace
- Touchscreen Devices
How the Drive Board Controlls the Compressor?
The motor drive controller is a crucial component in a wide range of applications, such as industrial automation, new energy vehicles, home appliances, LCD monitors, consumer electronics, etc, where it plays a pivotal role in regulating the operation of the drive motor.
No matter you’re looking for small DC compressors only, integrated cooling systems from us, or you’re expecting an entirely new solution from scratch, the electrical drive board will be packed together to you for driving the compressor.
The motor drive controller works by converting input power into a controlled electrical signal that drives the mini compressor or other equipment. It uses the TI DSP280025 drive chip and FOC control method to accurately regulate the compressor’s speed and torque.
Coupled with the programmable main controller (developed by OEM engineer and integrator), the motor drive board also monitors the compressor’s operating conditions and activates protection functions if any abnormalities are detected. For example, if the input voltage exceeds a safe level, the overvoltage protection function will activate, shutting down the compressor to prevent damage. Similarly, if the compressor stalls or fails to start, the stall protection function will activate, ensuring the compressor does not continue to operate in an unsafe state.
Drive Board Interface Description
- UART Communication: Used for communication between the compressor communication board and the control board
- Compressor resistance debugging: (reserved)：Utilize 51KΩ for regulating the compressor operating speed.
- Switching signal: For potentiometer speed control, disconnect to turn off the compressor, short circuit to enable the compressor
- Temperature Sensor: The discharge temperature sensor detects the compressor discharge temperature.
- Chip programming: Simulation and program solidification of chips
- Positive pole(V+): Connect the positive pole of the power supply.
- Negative pole (V-): Connect the negative pole of the power supply.
- Compressor output interface: Connect the U, V, W phase of the compressor
- Fan drive interface: Control the DC fan on/off.
Frequently Asked Questions
The motor drive board from MOIR is a variable frequency drive, which is designed to control and regulate the inverter compressor’s speed. It is responsible for converting input power into the appropriate signals to drive the compressor’s motor, ensuring efficient and reliable operation.
MOIR offers drive board in both DC and AC connection to meet different customer’s needs for different applications. These variable speed drive board can be used in a various applications including industrial automation, robotics, automotive, and consumer electronics.
The motor control is a critical component in any system that uses electric motors to control its speed, direction, and torque. It converts power and signals into the appropriate form to drive the motor efficiently.
It also includes protective features that help prevent damage to the compressor and its motor. For example, it may include overcurrent protection, overheating protection, and short-circuit protection.
MOIR’s micro-refrigeration solutions are based on advanced inverter tech, hence, the drive board developed also supports URAT communication with other components of the devices, such as sensors and controllers, to provide feedback and adjust operation based on real-time conditions.
About our drive board, it is engineered with 3 available methods for the compressor speed control: Potentiometer speed control, PWM speed control, and UART communication speed control.
Among them, the option suggested is Communication speed control > PWM speed control > Potentiometer resistance speed control.
For the potentiometer interface, it can be through resistance speed regulation, not supporting the analog voltage signal yet. To achieve this, a modification would need to be made.
For UART communication, the length of the cables suggested would not be exceed 10 meters
For RS485, the length of the cables can be reached to 100 meters.
At MOIR, we offers both the UART and RS485 option for selection to meet your specific needs.
The maximum cable length connecting the drive board and compressor can be up to 650mm. Typically it is enough for most of your electrical connection.
MOIR’s compressor is a kind of variable speed, 3-phase inverter compressor. The drive board is designed with 3 interfaces ( U phase, V phase, W phase) for connecting the compressor.
The driver can be connected to the compressor by a special 3-wiring cable with White, Red and Black wires. The white wire is connected to port U phase; the red wire is connected to port V phase; and the black wire is connected to port W phase.
The other end of the 3-wiring cables is for connecting the compressor output interfaces. For compressor connection, the wiring as long as in accordance with the U, V, W clockwise is feasible, no need to connect one by one respectively.
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