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Fischbach > Centrifugal Fans > Speed Controller FRA / FRE

Centrifugal Fan Speed Controller FRA / FRE

The centrifugal fan Speed Controllerare constructed to control single and multiple fan systems.

Rotary transformer, servo motor and an electronic controller, motor contactor, on/off switch with control lights, secondary (output) fuses, all contained in a sheet steel housing.

Fischbach Centrifugal Fan Speed Controller FRA

Fischbach Centrifugal Fan Speed Controller FRA Overview

Function of the Centrifugal Fan Speed Controller

The required condition is called on the pre-set device and this is compared in the electronic control to the condition recorded from the actual value sensor. The servo motor then drives the rotary transformer up or down to vary the output voltage, thereby controlling the speed of the FISCHBACH disc rotor motor fan 0-100% which in turn produces the required pre-set condition.

Dimensions, Signal Transmitters, Connection of the Centrifugal Fans Speed Controller FRA
Dimensions
Signal Transmitters
Wiring diagrams

Centrifugal Fan Speed Controller FRE

Fischbach Centrifugal Fan Speed Controller FRE

Dimensions, Signal Transmitters, Connection of the Centrifugal Fans Speed Controller FRE

Technical Data
Wiring diagrams, FRE 6/12

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