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04 December 2008

S-Force - Control and Optimisation

With our compact fans a range of control possibilities are available.

ebm-papst St. Georgen have developed the ultimate performer in compact fan technology - S-Force. The new technology from ebm-papst has developed compact
fans with:

  • Superior air flow
  • Steep pressure curves
  • Superb efficiency
  • Silent commutation
  • Sturdy design

With our compact fans a range of control possibilities are available. These are:

Speed signal
The fans use a separate wire to output information about it’s speed and thus the speed of the rotor. The tacho output gives two outputs per revolution allowing feedback for a control loop.

Go - No Go Alarm
The fans use a separate wire to output astatic signal when it is stationary thus providing information about whether the rotor is turning. This allows a failure alarm for maintenance purposes.

Alarm with limit speed
If the speed drops below a certain leveldefined in the fans electronics, the fan will give a static signal thus providing information about whether or not the rotor is turning. This can beused to ensure complete failure does not occur.

On our compact fans a range of control and optimisation variations are available. These are:

External and internal temperature sensor
An NTC is connected to the fan via a separate wire and the fan changes its speed depending upon the temperature at the NTC. A simple temperature profile such as below can be achieved without the need for external controllers.

PWM control input
The speed of the fan can be controlled via a pulse width modulation signal. The signal is applied to a specially provided wire.

Analogue control input
The speed of the fan can be controlled via a control voltage. The signal is applied to a specially provided wire.

In summary, a range of control options can be applied to or received from the compact fans of ebm-papst; from PWM control to TACHO output.

All of the signals and controls enable design engineers to control and optimise the performance of the fan ensuring exact air delivery and well as optimisation of power and noise.

Do you have a question? Please contact us.

Simon Bradwell
Managing Director
Phone: (03) 9360 6400
Fax: (03) 9360 6464
E-Mail: sales@ebmpapst.com.au
Internet: www.ebmpapst.com.au