The AHD 418 central unit is a microprocessor-controlled device and includes all inputs and outputs required to control and monitor the power section of the bow thruster, consisting of a three-phase asynchronous engine (slip ring rotor) with attached fixed propeller. The central unit is installed on the power unit or in the control cabinet of the bow thruster. The device works together with up to 4 AHD 419 operating panels.
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