HAL – Hall sensor input

The hall sensor interface (HAL) block provides access to the commutation signals from Hall effect sensors of a brushless DC motor.

The B-Box RCP supports up to two machines with Hall sensors through the Motor Interface for B-Box RCP. Hall sensors are usually found in three-phase brushless DC machines and provide a 60° resolution on the rotor mechanical position. The hall sensor block provides the commutation signals for the A, B, and C phases. The control algorithm can use these signals to implement a six-step commutation method.

Simulink block

Signal specification

• The output signal is a vector containing the A, B, and C signals (Booleans)
• The sim input vector is used in simulation and represents the actual commutation signals, computed by the simulation plant model.
• The > input signal needs to be connected to the sampling clock generated by the CONFIG block to account for the exact sampling instant in simulation.

Parameters

• Device ID selects which B-Box/B-Board to address when used in a multi-device configuration.
• Motor Interface input selects which connector of the Motor Interface is used as an input.

PLECS block

Signal specification

• The output signal is a vector containing the A, B, and C signals (Booleans)
• The sim input vector is used in simulation and represents the actual commutation signals, computed by the simulation plant model.
• The > input signal needs to be connected to the sampling clock generated by the CONFIG block to account for the exact sampling instant in simulation.

Parameters

• Device ID selects which B-Box/B-Board to address when used in a multi-device configuration.
• Motor Interface input selects which connector of the Motor Interface is used as an input.

C++ functions

void MotInt_EnableMotorInterface(unsigned int device=0);Code language: C++ (cpp)

bool Hall_GetPhaseA(tMotIntMachine machine, unsigned int device=0);Code language: C++ (cpp)

bool Hall_GetPhaseB(tMotIntMachine machine, unsigned int device=0);Code language: C++ (cpp)

bool Hall_GetPhaseC(tMotIntMachine machine, unsigned int device=0);Code language: C++ (cpp)