AC mains power cable (3-phase) to the Motor Control Unit
A dedicated power cable is required to connect 3-phase mains supply and ship’s ground to the hoisting motor on the hull unit. The connections are made to the Motor Control Unit. The cable must be provided by the installation shipyard.
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Terminal block E301 is located at the bottom of the Motor Control Unit. The three AC mains power cables, as well as ground, are connected from the ship’s circuit breakers to E301. The cable screen on the power cable must be grounded in the cable gland.
Important
The physical connections to the motor are made inside the terminal box on the motor. To avoid serious damage to the hoisting motor, and to ensure that the motor operates properly, you must verify that the electrical connections are made in accordance with the supplied 3-phase AC voltage. Observe the difference between 230 Vac and 380/440 Vac wiring!
Minimum cable requirements
•  Conductors4 x 2.5 mm2
•  ScreenOverall braided
•  Voltage: 750 V
•  Maximum outer diameter: 17 mm (Defined by the cable gland)