BLDC Motor Driver 9-24V - 3A

A versatile driver for a brushless DC (BLDC) motor with built-in hall-effect sensors. The driver offers various control methods including via a potentiometer (10kΩ-50kΩ), a microcontroller with PWM and RS485. Many settings (including maximum current, speed, PID settings, etc.) can be adjusted via RS485 and the configuration program for Windows (can be found under the tab "Downloads"). If you do not use this, the driver is set to the maximum settings for speed and current by default.

A complete (translated version) of the datasheet/user manual and the RS485 protocol can be found under the tab "Downloads". See below for a brief version.

Functions of push button and LEDs:

• Shortly press the button: Learning the motor phases. Perform this once after fully connecting the motor. The yellow and green lights flash alternately for 6s. If learning is successful, both LEDs then light up for 1s. If it did not work, they will light up for 3s. In that case, check the motor connections and perform this step again.
• Press and hold the the button for 1s: Switch between control mode, the digital/analog communication signal and the 485 communication protocol (yellow light is on continuously):
  • Orange LED lights up continuously and green flashes: Control via potentiometer or PWM (via a microcontroller).
  • Orange LED does not light up and green flashes: Control/configuration via RS485

To quickly start with the configuration program (and to test the motor), the following steps can be followed:

1. Make sure the motor driver is in RS485 control/configuration mode.
2. Connect a USB to RS485 converter (not included) to the RS485 terminals of the motor driver and insert the USB into the computer.
3. Go to the device manager on the computer and check under Ports (COM & LPT) on which COM port the RS485 converter registers. If the COM port is higher than 15, perform the following intermediate steps:
   1. Right-click on the RS485 converter and then select Properties>Port Settings>Advanced.
   2. Change the COM port number to a number between 1 and 15 and click OK.
4. Open the configuration program, select the correct COM port (the other settings are correct by default) and click Open.
5. Check the Auto Refresh box at the bottom right of the configuration program. If everything goes well, status parameters will appear above it. If "Timeout" appears, check the connections, COM port and whether the motor driver is in RS485 setting.

Follow the instructions below to test the motor via the configuration program:

1. Ensure that communication with the driver works using the above steps.
2. Go to the Motor Parameter tab and click Read.
3. At least change the maximum current settings that the motor can handle under the fields Motor Rated Current, Motor Load Current and Braking Current.
4. The rest of the settings can remain the same for testing. Then click Configure to save the settings. A message will appear that the configuration was successful.
5. Go to the Motor Control tab and set the Output PWM slider to 100%.
6. Click Operate and the motor will start running.
7. Click Stop to stop the motor. To change settings, the motor must also be stopped.

Check the tab "Downloads" for more information and/or downloads.