1. Under voltage protection

当电池包的总输出电压低于13.5V（±0.4V）时，控制器将触发欠压保护，2s后应停止运行。欠压后，电池包的总输出电压需高于15V（±0.4V）工具才能重新启动。

When the total output voltage of battery pack is lower than 13.5V (± 0.4V), the controller will trigger the undervoltage protection and stop operation after 2S. After undervoltage, the total output voltage of the battery pack must be higher than 15V (± 0.4V) to restart the tool.

2、过流保护

2. Over current protection

控制器设计了硬件过流保护。硬件过流保护值为150A（±1）。

The controller is designed with hardware over-current protection. The hardware over-current protection value is 150A (± 1).

3、高低温保护

3. High and low temperature protection

控制器带有温度保护功能，温度采集点为MOS管所在区域，过温保护点为90℃，低温保护点为-20℃。当触发过温保护后，工具停止运行，只有温度恢复88℃以下，工具方可再次启动。当触发低温保护后，工具停止运行，只有温度恢复-15℃以上，工具方可再次启动。

The controller has the function of temperature protection. The temperature acquisition point is the area where the MOS tube is located. The over temperature protection point is 90 ℃ and the low temperature protection point is - 20 ℃. When the over temperature protection is triggered, the tool will stop running. The tool can be started again only when the temperature is below 88 ℃. When the low temperature protection is triggered, the tool will stop running, and the tool can be started again only when the temperature is above - 15 ℃.

4、低功耗

4. Low power consumption

控制器处于待机状态（带电不工作）时，消耗电流小于15mA，处于低功耗状态（断电不工作）时，消耗电流小于30μA，松开启动开关10~12秒进入低功耗状态。

When the controller is in standby state (power on but not working), the current consumption is less than 15mA; when the controller is in the low power consumption state (power off and not working), the current consumption is less than 30 μ A. release the start switch for 10 ~ 12 seconds to enter the low power consumption state.

5、软启动和电子刹车

5. Soft start and electronic brake

为保护电池包和电机，电机的软启动时间设置在150~400ms之间。为了开关关断之后使整机快速停下，增加电子刹车，开关断开后电机停下的时间是100~400ms。

In order to protect the battery pack and motor, the soft start time of the motor is set between 150 ms and 400 ms. In order to make the whole machine stop quickly after the switch is turned off, the electric brake is added. After the switch is turned off, the motor stops for 100 ~ 400ms.

6、掉电保存设置参数

6. Save setting parameters after power failure

为了防止整机掉电之后，整机设置的参数丢失，在掉电前系统会保存设置参数，以便再上电读取，恢复到上电前状态。

In order to prevent the setting parameters of the whole machine from being lost after power failure, the system will save the setting parameters before power down, so that it can be read again and return to the state before power on.

7、正反调速和拧松自停

7. Forward and reverse speed regulation and loosening self stop

电机可以根据调速开关设置的方向，继续正反转调速；在整机处于拧松模式设置自停时，整机再检测没有负载时，会自动停止，必须要再重新扣下开关才能启动。

According to the direction set by the speed control switch, the motor can continue to adjust speed in positive and reverse directions; when the whole machine is in the loosening mode and set to self stop, the whole machine will automatically stop when there is no load detected, and the switch must be re buckled to start.

8、性

8. Security

工具在任何情况下停止工作，都必须先断开启动开关后才能再次重启。

If the tool stops working under any circumstances, the start switch must be disconnected before restarting again.

9、寿命

9. Life span

控制器正常使用寿命达1000h以上。

The normal service life of the controller is more than 1000h.

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Twist shear wrench to tell you the electric wrench control board design must meet what indicators? Everyone in the purchase process must be based on their own needs to consider!