1.  AS锁定保护功能(Auto Restart)

当风扇扇叶受外力卡死，或者人为堵转时，风扇内部会自动断电，对风扇进行保护（断电时间通常在2~6秒），每隔2~6秒风扇会自动通电重启，直至解除扇叶锁定后重新启动运转。

The fan can be auto-power supply when blame is locked to protect fan(power-off time is typically 2 to 6seconds). The fan will automatically restart every 2 to 6seconds till the  blames force released.

2.  CS恒速保护功能(Constant speed)

当风扇达到设定转速后，即使在电压升高的状况下，风扇转速恒定不变，维持在设定值范围内，以防止电压波动影响风扇转速或损坏风扇。

When fan sets speed, it will maintain constant speed even voltage increase between rated voltage to highest voltage to prevent effect fan speed or damage fan

3.  OV过压保护功能(Over voltage protection)

风扇供电超过预设的极限电压时，风扇内部电子系统自动断电，防止风扇损坏。

Fan will be automatically power-off when it exceeds limited voltage to prevent damage to the fan.

4.  SS软启动功能(Soft start function)

风扇通电启动时，风扇工作电流及转速均由0逐渐升高至额定值，防止风扇过大的启动电流及瞬间冲击电流影响及损坏设备电源或电路。

When the fan is energized to start, working current and speed from zero gradually increase to rated values to prevent excessive starting current and instantaneous inrush current impact and damage to equipment or power circuits.

5.  LD低转告警功能(Low Detection)

风扇设定一个转速值，当工作转速低于或者高于设定值时，风扇输出高电平报警。此功能可用于风扇供电电压波动较大，或者风扇出现故障时转速的监测报警。

The fan set a speed value, when operating speed lower or higher than setted value, the fan output high alarm signal. This feature can be used to big voltage fluctuation fan or when faulty fan speed monitoring and alarm.

6.  FG转速侦测功能(Frequency Generator)

FG亦称为频率发生器，用于侦测风扇转速，详见以下图示说明：

FG is also known as a Frequency Generator, used to detect fan speed, as details in the following illustration:

7.  RD停转告警功能(Rotation Detection)

主要用于风扇工作状态侦测报警，风扇运转状态和停转状态侦测报警信号有两种：

This function is mainly used for work status detection for the fan, the fan stops operating status and alarm status is detected in two ways:

(1) RDH告警在风扇正常工作时输出低电平信号，在停转时时输出高电平信号；

RDH: When running, output low level signal, when locked, output high level;

(2) RDL告警在风扇正常工作时输出高电平信号，在停转时时输出低电平信号。

RDL: When running, output high level signal, when locked, output low level.

8.  PPWM占空比脉冲宽度调速功能(Pulse-Pulse Width Modulation)

利用脉冲宽度调速，频率范围10~40K，调速原理为通过固定频率，改变其频率的占空比，来调整风扇的转速，调速曲线如下：

Using pulse width control, frequency range 10-40K, speed control principle through a fixed frequency, the frequency changing the duty cycle to adjust the fan speed, speed curve as follows:

(1)    PWM1调速为占空比越大转速越高，当占空比为95-100%时风扇全速运转，其最低转速可以根据客户的要求设定；

PWM1 duty cycle greater, the speed higher. It is full speed when duty cycle is 95%-100%, the minimum speed can be set according customer requirements;

(2)    PWM2调速为占空比越低转速越高，当占空比为0%-5%时风扇全速运转，占空为95%-100%时风扇处于最低转速或者停转。

PWM2 duty cycle lower, the speed higher. It is full speed when duty cycle is 0%-5%, the minimum speed can be set according customer requirements.

9.  VPWM电压脉冲宽度调速功能(Voltage-Pulse Width Modulation)

通过改变调速信号线电压的高低来控制转速，其调速范围一般取值为5的倍数，05V-10V-15V-25V等电压均可以调节，调速曲线如下：

By changing the speed signal line voltage level control the speed,the speed range of the general value of a multiple of 5, 05V-10V-15V-25V voltage etc, the governor curve as follows:

(1)     VPWM1调速信号线电压低对应的风扇转速低，反之测高，其最低转和最高转均可由客户提供数据设定；

VPWM1 corresponding speed signal line voltage lower, fan speed lower, and vice verse. The minimum and maximum speed can be adjusted as customer requirements;

(2)     VPWM2调速信号线电压低对应的风扇转速高，反之测低，其最低转和最高转均可由客户提供数据设定；

VPWM2 corresponding speed signal line voltage lower, fan speed higher, and vice verse. The minimum and maximum speed can be adjusted as customer requirements;

10.  TC温度控制功能(Temperature Control)

通过改变温度控制风扇的转速，调速曲线如下：

By changing the temperature control fan speed, speed curve as follows:

(1)    TC1调速方式为线性调速，低转和高转对应的温度可根据客户提供的数据设定；

TC1 Speed mode is linear speed, low and high temperature can be set as customers requirements;

(2)    TC2调速方式为阶段性，一个风扇可以分为多个阶段调速；

TC2 Speed mode is periodical speed, the fan speed can be divided into several stages;

(3)    TC3作为温度开关使用，可以设定一温度值来控制风扇的停转。

TC3 is used as temperature switch, you can set temperature value to control fan stop.

11.  RC电阻调速功能(Resistance control)

通过风扇电压输入端外接可调电阻控制风扇的转速，调速曲线如下：

External inputs adjustable resistance control fan speed by fan voltage, speed curve as follows: