The 3~ Fcontrol frequency inverters with integrated all-pole effective sine filter are also available as special versions for controlling compressors in refrigerant technology. The integrated sine filter provides for operation of the compressor which is very kind on the motor. No shielded motor cables are required.
The compressor is the component with the greatest energy requirement in the refrigerant circuit. The requirement-based control of this components brings considerable saving potential in comparison with the usual on and off switching operation.
The frequency inverters are set as speed controllers for 0 – 10 V at the factory. The Fcontrol can autarchically control to the desired suction pressure in the plant optionally. For this we supply MBG pressure sensors with the measuring range -1 to +7 bar or 0 to 30 bar.
Fcontrol are able to control up to four compressors with the function “group control”. You need the IO add-on module Z-module-B for this application. This module expands the Fcontrol with the required in- and outputs.

Advantages achieved by Fcontrol frequency inverters are: