MDR-SCD-10刮板机失速报警器

       MDR-SCD-10刮板机失速报警器内置接近开关，本开关转动轴插入传动轴内，随从动轴一起转动，然后通过接近开关感应到的开关量信号输入到PLC中，也可以直接用复位器控制，本产品对搅拌机的电机及机械传动装置常出现的堵转、卡转、超载、慢转，链条打滑、传动链(带)脱落、传动轴断裂等电气及工艺出现的故障均能有效及时的处理，发出开关量信号。

       The MDR-SCD-10 Scraper stall alarm is equipped with a proximity switch. The rotating shaft of this switch is inserted into the transmission shaft, and the mixer shaft starts to rotate. Then, the switch signal sensed by the proximity switch is input into the PLC, which can also be directly controlled by a reset device. This product is suitable for dealing with the common problems of blocked rotation, jamming, overload, slow rotation, chain slipping, and the detachment of the transmission chain (belt) in the mixer's electrical and mechanical transmission devices Electrical and process faults such as transmission shaft fractures can be effectively and promptly addressed, sending on-off signals.

刮板机失速报警器组成：

       MDR-SCD-10刮板机失速报警器主要由SCD-1速度传感器和保护器组成。SCD-1速度传感器为一电磁感应式脉冲信号发生器。SCD-1速度传感器安装于刮板机从动轴上，随从动轴一起旋转，将从动轴的旋转速度信号变换成脉冲信号，脉冲信号的频率与从动轴的转速成正比。保护器安装于刮板机的就地电控箱或集控室内。失速报警器接收速度传感器的信号，并检测脉冲信号的频率，当脉冲信号频率低于设定值时，失速报警器动作，输出一开关信号，用于控制驱动电机停止运行，从而保护设备。失速报警器动作后会自锁，此时即使速度传感器有正常脉冲信号输入，保护器也处于报警保护状态，短按复位键，让保护器复位。

Scraper stall alarm composition:

        MDR-SCD-10 scraper stall alarm is mainly composed of SCD-1 speed sensor and protector. SCD-1 speed sensor is an electromagnetic induction pulse signal generator. The SCD-1 speed sensor is installed on the driven shaft of the scraper, and rotates along with the moving shaft to convert the rotating speed signal of the driven shaft into a pulse signal, and the frequency of the pulse signal is proportional to the speed of the driven shaft. The protector is installed in the local electric control box or centralized control room of the scraper. The stall alarm receives the signal of the speed sensor and detects the frequency of the pulse signal. When the pulse signal frequency is lower than the set value, the stall alarm acts and outputs a switching signal to control the drive motor to stop running, so as to protect the equipment. Stall alarm will lock itself after the action, even if the speed sensor has a normal pulse signal input, the protector is also in the alarm protection state, short press the reset key to reset the protector.

刮板机断链保护器工作原理：

       刮板机失速报警器安装在被传动轴旁，被传动轴装有检测片。当电动机运转时，通过传动装置驱使被传动轴转动，被传动轴上的检测片也随之转动。旋转探测仪接收到检测片的均匀间隔脉冲信号，此时旋转探测仪为闭合状态，通过串接中间继电器的自保触头使交流接触器吸合，交流接触器主触头闭合使电机转动。当设备发生卡转，堵转、皮带打滑、传动带脱落故障时，被传动轴将慢转或停转，此时检测片也随之慢转或停转，失速报警器将接收不到检测片的均匀间隔脉冲信号。在工艺时间内（5秒）未接收到转动信号，旋转探测仪将由闭合状态转为断开，中间继电器也断开，交流接触器断开及时停机，可靠的保护设备(此产品接收检测片转动信号与电机大小无关)。

Scraper broken chain protector working principle:

        The scraper stall alarm is installed beside the driven shaft, and the driven shaft is equipped with a detection piece. When the motor is running, the drive shaft is driven by the transmission device, and the detection piece on the drive shaft is also rotated. The rotating detector receives the evenly spaced pulse signal of the detection piece. At this time, the rotating detector is in the closed state. The AC contactor is drawn by connecting the self-holding contact of the intermediate relay in series, and the main contact of the AC contactor is closed to make the motor rotate. When the equipment is stuck, blocked, belt slip, and the transmission belt falls off, the drive shaft will slow down or stop, and the detection piece will also slow down or stop, and the stall alarm will not receive the uniform interval pulse signal of the detection piece. If the rotating signal is not received within the process time (5 seconds), the rotating detector will change from closed state to disconnected, the intermediate relay is also disconnected, the AC contactor is disconnected in time to stop, and the reliable protection equipment (the product receives the rotating signal of the detection piece has nothing to do with the size of the motor).

环境温度/Ambient temperature：-20℃~65℃

相对湿度/Relative humidity：≤95%（25℃时）
电源/Source：单相 220V、50HZ/Single phase 220V, 50HZ
输出接口/Output Interface：无源接点、AC220V/5A/Passive Contact, AC220V/5A
断链保护器工作制/Chain Break Protector Working System：24 小时工作制/24-hour working system
周围介质/Peripheral Media：无易燃易爆、无腐蚀性介质的场所/Places without flammable, explosive or corrosive media

调试方法/Debugging Method：
1、安装好保护器和速度传感器，按图接好线后，检查接线无误。/Install the protector and speed sensor and check if the wiring is correct after connecting according to the diagram.

2、接通电源，启动主机，约 15 秒后待设备速度正常后，按住设定/复位键2秒，指示灯闪烁，失速报警器进入智能设定状态，设定完成后自动进入运行状态。/Switch on the power supply and start the host machine. After about 15 seconds, wait for the device speed to be normal, press and hold the setting/reset key for 2 seconds, the indicator flashes, Stall alarm enters the intelligent setting state, and automatically enters the running state after the setting is completed.