How to determine the meaning of each line on the tram
Follow the motor to find 3 phase wires and 5 Hall wires of the motor, remove the handlebar and find 3 handlebar wires, and remove the brake lever to find 2 brake wires. After disassembling the battery, you can see "+" positive power supply "-" negative power supply. In general, it is easy to understand and accurate to find and install according to large parts.
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If the motor does not rotate normally, test the Hall method
Check the liveness of the whole vehicle, first connect all the lines and connectors, pull the multimeter to the DC voltage 20V range, first confirm that the controller has 5V power output, and then connect the black lead to the ground wire of the Hall, the red lead Connect three signal wires respectively, and turn the motor gently by hand while measuring. When the Hall is normal, the multimeter will show the pulse voltage data of 0V ~ 5V. If there is no pulse voltage when measuring a certain Hall, then this Hall Just broke. (This situation can also be detected with a pointer multimeter. The pointer swings between 0V and 5V. The Hall is good; if the pointer does not swing, the Hall is bad.) This method is the most reliable method, provided that Live operation.