电机转向是否正确：如电机转向相反请重新把电源线两相互换接上。
The motor's rotary direction whether is correct: if the motor's rotary direction is reverse or opposite then change the electrical wires and connect again.
硬件技术如抑制干扰源、减小电源噪声、合理布局地线及电源线等。
The former one restrains the source of interference, turns down the noise triggered by power and lays out rationally the ground wires and power wires.
电源线如破损，应立即关闭电源，停止使用，送到制造商指定维修站更换。
When the power line is damaged. Please shut off the power and stop operating, and please send it to the prescribed service of the manufacturer to change.
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