In this tutorial, we'll look at the location of hall-effect cards on motors, and how to check their connection.
This is a magnetic sensor. Positioned next to a magnet that rotates at the same time as the motor shaft, it captures the magnetic field emitted by the magnet and transmits it as an electrical signal to the board. In this way, the board knows whether or not the motor is turning, at what speed, and where the gate is in its travel.
Hall effect boards are positioned at the top of the electric motors. They are wired with 3 white or 3 black wires.
The Hall effect card is connected with 3 wires.
To spot the positive :
The middle wire is negative (GND). The wire opposite positive is HALL. HALL and GND must therefore be crossed to connect to the board.
As mentioned in the introduction, this element tells the electronic board whether the motor is running or not. In the event of a Hall effect card fault, the electronic board will react as if the motor were not running, and will indicate corresponding errors. Typically, in self-learning mode, you’ll get the L3 error message after a short motor run (the motor has reached its opening stop in less than 3s). Before validating this fault, make sure that the magnet positioned next to it is firmly attached to the motor shaft and turns at the same time as it does. Also check that all the board’s red LEDs light up after a short press on the SET button. In some cases, the SET button may short-circuit, blocking the board’s electrical start-up. If you find that the LEDs on your electronic board are no longer lit, or are only faintly lit, disconnect the motor terminal block from the board, and check that it restarts properly.
First of all, check that each cable makes good contact with the terminal block slots, and that the wires are tightly clamped in the slot jaws.
