电缸已成为工厂和过程自动化领域不可或缺的装置。其优势显而易见：它们不仅在运行方面特别经济，而且可轻松进行控制和配置。当然，这些优势也适用于 Festo 电阻挡缸，它可使输送的物品停止，从而实现物料流的自动化。
Festo 开发的电阻挡缸 EFSD 专为传送系统设计而成，可帮助该系统将物体从一个加工站运送到另一个加工站。它可仅需两颗螺钉就可直接固定到传送系统的型材上，此外输入和输出信号也各需要一个螺纹段子连接。除了易于安装，这款电阻挡缸的另一个亮点是可调节的阻尼，并且通过数字 I/O 进行控制，通过 PLC 可编程逻辑控制器输出传感器信号，甚至直接接收指令，从而进行缓冲和挡停。
The electric stopper EFSD has an integrated motor controller and a combined interface to the power supply. This allows it to be connected directly to the digital I/O of a PLC, and it only has a single energy source, so it does not require compressed air. The power supply, communication and logic processing functions are all integrated in the device itself. The EFSD uses LEDs for status indication and for status and error messages, while the sensor and actuator signals are transmitted via M12 plugs.
The EFSD enables conveyed goods from 0.25 to 100 kg to be gently stopped. It is our attractive solution for quickly and easily equipping transfer systems, completely without compressed air, and is available in three different sizes.
The electric stopper EFSD has three positions. In position 1, the initial position, the stop of the stopper cylinder is extended and ready to stop the conveyed goods. In this position, the LED status message is "Closed" and the input signal is 0.
In position 2, the holding position, the conveyed goods have been cushioned and slowed down by the cushioning built into the electric stopper and are then held in position for a certain period of time. In this position, the LED status message is also "Closed" and the input signal is 0.
Only in position 3, the release position, does the LED status message change to "Open" and the input signal to 1. In this position, the stop of the electric stopper is retracted and the conveyed goods are released.