4.5.5. MCS 6


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Fig. 4.20: The BOGE Master Control System 6
MCS 6 Controls a maximum of 4, 8, or 12 compressors with speed frequency control of the same, and/or different size and design/type in a system. All compressors in the system are controlled through a common pressure sensor on the compressed air receiver. The peak load compressor controls the compressed air demand via its speed frequency control.

When the compressed air demand falls this compressor switches off and the medium load compressor takes over the control through its speed frequency control.

Apart from the speed frequency control the MCS 3 and the MCS 6 systems are similar.
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Fig. 4.21: Op. diagram for the BOGE MCS 6
The control system offers:
    • Adaptation of the FAD to the compressed air demand through speed frequency control of the peak load compressor.
    • Minimum pressure fluctuations in the pneumatic system.
    • Dynamic pressure control by microcontroller in conjunction with the electronic pressure controller for a minimum cut-in difference of 0.5 bar. ( no over-compression ? energy saving )
    • Time-dependent allocation of compressors in priorities for shift operation with differing compressed air demand.
    • Individual allocation of individual compressors in the load range groups with even work rates among the compressors.
    • Adjustable basic load change cycle.
    • Independent rotation of compressors in the load range groups.
    • Time adjusted use of compressors on demand by the control unit.
    • Well-arranged LCD-display with 4 x 20 characters and clear text output.
    • Possibility to check all inlets and outlets via a test menu.
    • Automatic switchover to the pressure switches of individual compressors in the event of power failure.
    • The individual compressors work independently without the MCS 6. They are then controlled by their own pressure switches.