1. If the product has no special requirements, the Brushless DC Gear Motors is not allowed to operate in reverse connection under the rated voltage. Because once the reverse connection operation is performed, the permanent magnet will be demagnetized. If it is necessary to operate in this way, a current-limiting resistor must be added to limit the excessive current.

2. Take care to avoid permanent magnet demagnetization caused by excessive current, temperature changes, and open magnetic circuit during disassembly and assembly. Especially for Alnico permanent magnet motors, magnetic short circuit protection is required during disassembly and assembly to avoid demagnetization.

3. When replacing the electric brush, clean the surrounding electric charcoal dust first, and then use alcohol and gasoline to clean the commutator. At the same time, pay attention to no-load running-in when using new brushes.

4. When the load is too large or the power transistor is burned out due to high current caused by improper use, high power transistors will be used for protection to protect the driver from damage due to current exceeding specifications.

5. When the load of the flow motor is not small, the energy sent back to the driver from the device end will endanger the driver when it stops rotating, so it needs to be handled with an overvoltage protection circuit plus a regenerative energy dissipation circuit.

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