Electric stoppers

Electric stoppers

It is impossible now to imagine factory and process automation without electric drives. The benefits are clear: they are not only extremely cost-effective to operate, but also very easy to control and configure. Of course, this also applies to electric stoppers from Festo, which are used to stop conveyed goods and thus automate the flow of materials.

EFSD – the Festo solution

Festo offers the electric stopper EFSD, which has been specially designed for use in transfer systems where objects are transported from one processing station to another. It can be mounted directly on the profile of the transfer system with just two screws and also requires one electrical connection each for input and output signals. Not only is the electric stopper easy to install, its adjustable cushioning is another highlight. It is controlled via digital I/O and uses the output of sensor signals and direct commands from the programmable logic controller (PLC) to cushion and stop workpieces.

Stopper cylinder EFSD

Characteristics of the stopper

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.

Mode of operation

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.