Archive July 2019

New Function – “Speed control on the fly”

A few customers have asked for both position control and speed control on Pneumatic actuators with our Flexible Positioning unit, FPU.

Eventhough you already can set the required speed in our software, some users want the possibility to change speed on the fly, for example in filling applications, where they want to match the filling speed with the size of container. To accommodate this request, we have implemented this as a standard option. Now you can use one analogue signal for position control and one for speed control.

This is available in units shipped from August 2019. Older units can get a free software update.

Users that want to use this function control the position with 4-20 mA and the speed with 0-10 V. A version with I/O-link is in development and is planned to be released later this year.

Example on the application can be seen at http://www.youtube.com/watch?v=MM3528zkhVk

New function – Simplified 3 position control

New function – Simplified 3 position control

Some users of pneumatic actuators need the flexibilty of adjustable positioning, but only need three positions, typically that is the two end positions and one more position somewhere in the stroke.

Quite often, this is achieved by combining two actuators, making special 3-position actuators, or by using a separate actuator or stopper cylinder as an intermediate stop. Those solutions are not flexible, and tend to create new issues like space limitations, lead time of parts, reduced life time of the application (especially when using intermediate stops), and they use valuable engineering resources.

Some users want to have a better solution, but don’t want to have to add an analogue output for position control. Furthermore, Long stroke position sensors also add costs.

For those users, we are now introducing an option that can be used in our Flexible Positioning Unit, FPU – 3 Position control.

With a combination of standard PNP pulses with set times, you can now choose between each end position and an adjustable intermediate position on pneumatic actuators. It works on all types of pneumatic actuators, and add a lot of possibilities on rodless actuators. For the intermediate position, you only need a short position sensor.

Users that start with this function and find themselves needing more positions in the future can easily update by switching position sensor, adding an analogue control signal and just changing parameters in the FPU-Unit.

This new function is a selectable option in the standard units from mid July 2019. Users with older units can get a free firmware update.

Digital Pneumatics are here to stay!

See a live demonstration on http://www.youtube.com/watch?v=8_SvG9B_dng