I will explain why we need an ESC to let a brushless motor spin.
Brushed DC motors, thats the ordenary motor you may know, has only 2 wires, you connect them to the positive and negative pole of the power source and the motor starts spinning. Simple. But These motors have many disadvantges. The most important 3 are: unefficient, lots of wear, bad to regulate the speed without loosing the torque. A brushed motor should NEVER be used for applications that demad long life and reliability.
About brushless motors, you need to now :
- A brushless motor (BLDC motor) has 3 power wires. these 3 wires need to be powered in the right timing sequence to let the motor spin.
- A sensored brushless motor (BLDC motor) has even more wires, because in a sensore motor are 3 sensores build in that indicate a controller in which position the rotor is in relation to the magnets of the motor. That allowes to start the motor even there is a higher load on it.
But as I discribed above, a brushless motor has 3 power wires to power. These wires are connected to the ESC. The ESC is placed between the power source and the motor. It will switch the power on its way to the motor in the right sequence to let the motor spin. It also handles the sensor logic if its a sensored motor.
Thats why we designed our new controller, it is optimized for energie saving efficency and goes into sleep mode if the motor is not needed. That is of special importance in off grid or batterie powered arangements, like in sailing Yachts.
It has a flexible concept and can be used as stand alone programmable motor switch or it can be used via any WiFi or network device with browser. It can be even accessed via internet from any place. As Internet of Things (IoT) device.
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Oliver, I have the Flipsky VESC controller and BLDC motor you recommended. I have powered it with 24 volts and can configure it using the opensource VESC software through a USB connection on my PC. I have not yet connected the motor, as I not sure how to turn the controller on/off to start/stop the motor.
What type of VESC Input controller did you use as a “Receiver?” Do you have a picture or wiring schematic?
Thanks,
Jamie Wendell
Hello Jamie,
due to the recent birth of my jungest son I cant answer jet so much as I am very busy.
I will help you to go on promise.
Next step is to mount the motor on some kind of motor mount / holder wood or some kind. do not start the motor
in your hand or hanging on the wires, its a powerfull motor and its dangerous to start it without a propper fixation.
connect the motor and go into VESC software, astablish a connection to the VESC.
You will find some kind of instruction at FLIPSKY site.
For the first try you start the motor with the VESC software and setup the VESC to your kind of motor.
When you are finished with that and your VESC is setup we can go on and talk about the controller you need to connect the VESC with the frigo box.
There is also an other ship at the same stage as you are guided by me.
kind regards Oliver
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