This FAQ section provides clear, concise answers to common questions related to BLDC motors and BLDC motor controllers. It covers a wide range of topics, including product specifications, model selection, control methods, compatibility, and troubleshooting. The content aims to support efficient product evaluation and application planning for our customers. Recommended motor and controller models are also listed to assist with typical use cases. The information is continuously updated based on industry trends and customer feedback to ensure relevance and accuracy.
BLDC Motor
BLDC Motor Controller
Q1: What are the specs of the potentiometer that can be used with our 2HP BLDC motor?
A1: When using the external potentiometer to adjust the speed, use the potentiometer with a resistance value of 10KΩ.
Q2: Is your BLDC motor continuous duty? What do they need for cooling anything?
A2: Yes, continuous duty (24/7). No external cooling is required (Environment Temperature should be: -20~55℃).
Q3: How long does it take to get your gas detector fully charged?
A3: Charging time is 5-6 hours to be fully charged.
Q4: Can I order a BLDC motor with 48V DC and feed its controller with 24V DC?
A4: Yes, you can, but we recommend matching; we mean the motor rated voltage is 48V DC, then supply the controller with 48V DC.
Q5: For your 2.3kW BLDC motor, can we use it at -30℃? Also, how can we control the brake, is it manually or electrically?
A5: Yes, the BLDC motor can work normally at -30℃, no need to add a heater. Also, for the brake, it can be controlled electrically through a 24V supply.
Q6: Does your brushless DC motor have trapezoidal back EMF? Can you provide a gearbox?
A6: Yes, the back EMF is trapezoidal, and we can add a gearbox, just indicate the ratio required.
Q7: Is there a way to determine the position of the BLDC motor accurately without the encoder? We need to be able to determine what angle our motor has turned at any given point.
A7: Yes, to determine the position of the motor accurately, you can add a rotary encoder to the peripheral shaft of the brushless motor and use the PLC to read the encoder data and record the motor position. You will need to use our brushless motor controller.
Q8: How much braking torque of a 1500W BLDC motor have? And what is the difference in dims between a 36VDC and a 48VDC motor? And what is the braking voltage?
A8:
Q9: Could we use the BLDC motor to drive the compressor unit?
A9: BLDC motors can be used on a compressor unit, but depending on the specific application environment, such as temperature requirements. Also depends on the actual use of the compressor, what the requirements of the motor parameters, such as torque, speed, current, and so on.
Q10: Can the BLDC motor run 24 hours in 6 months without stopping? And what is its service life?
A10: As long as the temperature of the motor is below 40 degrees while running, there is no problem with continuous operation for 6 months. (Note: If the motor load is too large, it will cause the current to increase, causing the temperature to rise.) And the service life is more than 10,000 hours.
Q11: I am about to mount my 1000W BLDC motor and controller. I noticed that the motor runs CCW (anti-clockwise) when I bench tested it. I want it to run clockwise as per the BLD-50A motor driver manual. Can I swap the U, V, and W wires without causing any harm?
A1: No, you can reverse the direction by controlling the connection of the F/R terminal and the COM terminal.
Q1: I'm looking for a brushless DC motor that can drive a 500kg electronic vehicle. What is needed to advise me on the most suited power capacity motor of yours?
A1: Generally, and according to our experience in electronic vehicles, the required BLDC motor power capacity is about 1kW-2kW, and we need to know, motion structure of the electronic vehicles (whether it is wheel-driven), the motion speed, the associated friction coefficient, and the gear ratio.
Q2: I'm currently building a mobile robot, and I'm interested in your 750W 48V BLDC motor. The robot will be powered by a LiFePO4 48V battery. But, the 48V of the battery is the "nominal" voltage; when fully charged, the battery voltage is ~58V. If I power the motor directly from the battery, is there a risk of damaging the motor?
A2: No risk at all, the 750W 48V BLDC motor works normally in the range 18-60V DC.
Q3: We are interested in a 13000 rpm 12V 24V small brushless DC motor. Can the motor RPM speed be controlled from 50 rpm to 13000 rpm with a 5 rpm step?
A3: Yes, you can use a PWM signal (amplitude: 5V; Frequency: 2 ~ 50kHz) to control the speed between 50 and 13000 rpm.
Q4: I need a brushless DC motor to put in rotation a vacuum chuck to operate up to 3000 rpm. From time to time, the motor might be in contact with some splash of water, so I would need an IP67-certified motor.
A4: Yes, we provide an IP65 BLDC motor that can withstand some splashes of water without problems.
Q5: We need a BLDC motor to be coupled to a vacuum pump. The motor we need should have power between 2 to 3 HP for 3500 rpm speed, because we will not regulate the speed, we won't need the controller. What do you advise?
A5: Our BLDC motor rated speed is 3000 rpm, and the controller is a must to connect your motor to the DC supply, and you can use it just for this purpose.
Q6: We require a 5 hp BLDC motor with a constant speed, both under no load and full load conditions. Can you provide?
A6: Yes, we can. The motor speed can be constant, and the controller with CAN is used to control the motor; of course, the motor speed can be adjusted.
Q7: We are interested in buying one BLDC motor, BLDC-110-1000W, as a test sample with brake and matched control. The electrical machine we are using today communicates by CAN open. Can we use CAN open with your separate matched control unit? What program do we need to transfer the PLC program to the matched controller?
A7: Yes, you can use the control unit to use CAN open, it's no problem. But it needs you to write CAN open programs.. We only mean we can provide the CAN communication protocol for your reference. But for all programming, including PLC and CAN communication, you have to do it yourself.
Q8: I'd like to know if there is a possibility to customize a 48V/72V/96V 5000W brushless DC motor with an encoder on the motor shaft.
A8: Yes, we can add the encoder to the BLDC motor shaft, but no connection with the motor controller.
Q9: Can you provide your 3 hp BLDC motor with a 3/4" shaft or adapt it to 3/4" so we can easily test it with our existing pumps?
A9: Yes, we can customize the brushless DC motor shaft diameter to be 19mm, which is approximately 3/4" shaft.
Q10: I'm looking for 1 to 1.5 hp BLDC motors that can spin at 4000 rpm, variable speed. Can you provide such specs?
A10: Yes, we can customize 1-1.5 hp BLDC motors with 4000 rpm rated speed, but the housing temperature of the motor will increase by about 10-20 degrees when the motor is running at 4000 rpm.
Q1: I want to connect a potentiometer to bldc motor controller to control the speed. What is the recommended wire size?
A1: Three wires, 0.5 square mm, or 0.75 square mm.
Q2: Does the BLDC-KBL motor controller for the 1 hp (750W) brushless DC motor (SKU: BLDC-80-750W) connect directly to an Arduino? Or will we need a separate connection to connect to the Arduino?
A2: This motor controller can be directly connected to the AVR microcontroller (Arduino) to achieve brushless motor speed regulation.
Q3: For the BLDC-KBL BLDC motor controller, do we have to configure the controller using the RS232 connection before using it?
A3: No need to configure anything via RS232 connection. Once you receive the controller, you can plug terminals and run as per the video we sent you.
Q4: Can your BLDC motor controller be provided with CAN communication and a hall effect sensor?
A4: Yes, and our BLDC controller can be with CAN communication for DC input voltage of 24- 72VDC only.
Q5: Can we integrate your BLDC-KBL motor controller into a solar panel system?
A5: Yes. The motor controller can be used based on the solar panel voltage. Generally, the voltage of the solar panel is sufficient, and the motor can be driven normally as long as the current of the panel is large enough.
Q6: Is the 0-5V speed circuit isolated for BLDC motor/controller? In other words, my control circuit requires that my 0-5V speed reference be sourced not from the +5V controller but from my battery source. I will connect the 0V of my battery source to the COM on the controller. My reference voltage will connect to the reference input on the controller. I will not use the +5V source voltage on the controller.
A6: Yes, you can use the battery voltage to provide 0-5V without using the controller's +5V, connect the 0V of the battery power to the COM on the controller, and connect the positive terminal of the battery to the SV of the controller.
Q7: For the BLDC-KBL motor controller, and when it is used to run a 48VDC motor, what is the accepted input voltage tolerance for this motor controller?
A7: Low voltage is 18V alarm, high voltage is 60V.
Q8: I am about to mount my 1000W BLDC motor and controller. I noticed that the motor runs CCW (anti-clockwise) when I bench tested it. I want it to run clockwise as per the BLDC-BD50 motor driver manual. Can I swap the U, V, and W wires without causing any harm?
A8: No, you can reverse the direction by controlling the connection of the F/R terminal and the COM terminal.
Q9: My BLDC motor is 48V, I am using the BLDC-BD100 controller, and every time I plug in the power, there is a problem. I plug in 25V, which is almost an average DC power supply, and the motor will work for a second, then start flashing red 6 times, and the green light is steady. According to this document I found, there is an overspeed problem. How can I solve this problem?
A9: The rated voltage of the motor you purchased is 48V, so the voltage input to the controller must be a voltage between 48V and 54V, and you cannot use a 25V voltage input.
Q10: BLDC-BD100 brushless DC motor controller (working voltage 24V) obtains fault signals. In addition to connecting to the CAN network, are there other ways to determine whether the drive has a fault?
A10: The corresponding fault can be determined by the flashing of the fault light. You can use the Modbus protocol to communicate through the RS485 interface and check the Pn140 return value to troubleshoot the fault.
Q11: Would you have a BLDC motor controller that supports 54VDC? What is available for us?
A11: Yes, we can provide a 1kW BLDC motor/controller, supports an input voltage of 54VDC, with a maximum voltage of 60V.