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Festo focus: OVEL vacuum generator: the best of both worlds


Communication via IO-Link


The new compact vacuum generator OVEL from Festo has been developed for efficient and decentralized vacuum generation. Due to the modular construction you can pick  precisely the right configuration  for an specific application. In addition, the lightweight generator has an analog pressure sensor, the values ​​of which can be made visible with the help of an SCDN signal converter. The analog signals can also be digitized via IO-Link and to be sent to a higher level controller.

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 ​​​​​​​Festo OvelFesto previously developed a simple, inexpensive vacuum generator (VN) without much extra functionality and a very advanced unit (OVEM) where the compressed air is automatically switched on and off via a control circuit. With the OVEL Festo now introduces an innovation in which the user benefits from the simplicity and low costs of the VN, while it is still possible to communicate via IO-Link and to read the vacuum level via a display (SCDN).

​​​​​​​Also characteristic of the OVEL vacuum generators are the two 2/2 valves with which the user can switch the vacuum on and off respectively and give a blow-off pulse. This type of valve also makes it possible to create a vacuum, hold it and then switch off the generator.


IO Link

The IO-Link communication protocol is still gaining popularity. Festo has known this for a long time and carries out many of its innovations with the possibility of communicating via IO-Link. The vacuum generator OVEL can be used, among other things, to read data from up to two analog sensors. For example, a vacuum sensor (pressure sensor) and a sensor that recommends the status of the generator (on or off). The data can then be forwarded to a higher-level controller of PLC and used there for controlling the generator.
By IO-link the vacuum generator is also easy to parameterize and commission. The serial data transfer also allows OVEL to send data that improves maintenance and failure analysis, among other things.


Applications

The OVEL vacuum generator is ideally suited for assembling and testing smaller components. The low weight and compact dimensions of the vacuum generator support extremely short cycle times during inspection and pick & place processes.


Technical specifications

Nozzle sizes 0.45; 0.7; 1
Versions High vacuum; Fast vacuum
Switching function Normally open
Analog output sensor 1 - 5 volts; 1 -10 volts; PNP; NPN; IO link
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Whitepaper

In this link you will find the extensive knowledge document 'Basic principles of vacuum technology' where in 54 pages all the issues of vacuum technology are discussed.

Below you will find a​​​​​ short product introduction  from Festo about the OVEL

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