Tuesday, October 22, 2013

Anchor Winch Overview

1. Description
A high-current circuit for raising and lowering the anchor.

The circuit is fed directly from the house-batteries and is wired into the main busbars in the house-battery compartment. A Switch / Breaker provides power to the Forward Control Box. This, in turn, provides the switching that determines the direction of the winch.

The Switch / Breaker Box incorporates a 50A switched breaker primarily there as an On/Off switch though it does also provide high-end protection for the rest of the circuit. The 45A breaker is the popup type and was provided with the winch. This protects the wiring and is also likely to trip if the winch jams for any length of time. This box also has an indicator lamp which lights when the circuit is live and power is available to the Forward Control Box. This will go out if one of the breakers trips.

Power is fed to the Forward Control Box via 2 (1 red & 1 black) 2B&S cables for both high-current capacity and to reduce resistive loss.

The Forward Control Box contains the switch-over solenoid, an Up/Down control switch and a 5A popup breaker to protect the switch circuits. This is connected to separate deck-mounted foot-operated Up and Down switches and also the winch itself which is essentially a DC electric motor.

If no power is available, there are manual override tools – an allen key and winch handle. These are tied to the cables near the Breaker Box.

2. Touch Points
12V high-current: House-battery positive busbar in the House Battery compartment connects to the Breaker Box input.

High-current ground: House-battery negative busbar in the House Battery compartment connects, through a 2B&S cable, to the Forward Control Box.

Low-current ground: House-battery negative busbar in the House Battery compartment connects to the Breaker Box to provide a ground for the Indicator Lamp.

3. Power Requirements
Section Component Circuit
Code
Current
Total Overall 25A

4. Parts List
Ref. Description
Switch / Break Box
  • CB1: 50A On/Off switched circuit breaker
  • CB2: 45A popup circuit breaker
  • D1: Green “Circuit Live“ LED indicator lamp
Forward Control Box
  • SOL1: Direction switchover solenoid
  • CB3: 5A popup circuit breaker
  • S1: Up/Down control switch
Deck Switches
  • S2: Up foot switch
  • S3 Down foot switch
Winch Motor
  • M1: Anchor winch motor

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