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A: Internal 24 Vdc power supply |
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E: Hull Unit Controller circuit board |
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F301: Fuse for internal power supply |
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E301: Terminal strip for AC mains input |
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K301: Hoisting contactor |
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K302: Lowering contactor |
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K303: Phase watch relay |
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L1: Yellow indicator light |
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L2: Green indicator light |
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S301: Motor protecting switch |
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S302: Hoist/lower switch |
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S303: Hand crank with safety switch |
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P302: Connector for hull unit limit switches and rotation sensor |
During normal operational conditions, the L1 and L2 indicator LEDs are lit.
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LED L1 indicates that the Phase Watch Relay K303 is activated. This mean that the 3-phase voltage is applied, and that the three phases are correctly connected with regard to the rotation
direction of the hoisting motor. |
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LED L2 indicates that the internal +24 VDC power supply for the control electronic is operational. |