If you buy silent dc motor, you must know whether the DC motor controller indicator is normal.
The DC motor can judge whether it is normal or faulty according to the flashing of the motor controller indicator. Every time the DC motor controller indicator flashes, it has its specific meaning. Carefully analyze the problems in the DC motor and get a corresponding solution.
1. The weak signal control part works normally for about seconds/time.
2. Slow flash 2 times the circuit is in the brake state.
3, slow flash 3 times Kang Kang to LM358 have parameters wrong or open circuit.
4, slow flash 4 times on the bridge to the drive to the output MOS is faulty.
5, slow flash 5 times to the lower bridge to drive to the output MOS is faulty.
6, slow flash 6 times 60 degrees 120 degrees selection and motor Hall phase sequence connection is wrong.
7. The current is too large for 7 times of slow flash operation. The reference level of the constant copper or short circuit detection is off the bottom (normal value is 20K vs. 1.2K partial pressure).
