Rolls-Royce Helicon X3 P&T Control System

Вертолет Rolls-Royce X3 P&T

Target Groups

The User Manual is primarily intended for the user of the system. The user must be properly trained in using and maintaining the system. The installation of the system components must be made by yard mechanics with experience in fitting marine electronic equipment. Cabling into the units, wire termination and screen/shield termination should be made by yard electricians that have a certificate of apprenticeship or equal qualification on ship electrical installation. Commissioning and testing must be carried out by field service personnel from Rolls Royce Marine, Dept. Propulsion Ulsteinvik or qualified service engineers from Rolls Royce Marine Global Support Network (GSN).

Introduction

This chapter provides information regarding safety precautions that must be taken to prevent injury to people and damage to equipment. Whoever is responsible for the installation, operation or maintenance of this Rolls Royce system, is obliged to read this chapter and fully understand its content before any installation, operation or maintenance of the system may take place.

Disclaimer

Undertaking any work envisaged by this document may either directly or indirectly create risks to the safety and health of the person undertaking the work or the product and/or its components while the work is being performed. It is the responsibility of the user to protect the health and safety of the persons undertaking the work as well as risk to the product and/or its components. Therefore the user must ensure that appropriate controls and precautions are identified and taken in relation to the work envisaged by this document in accordance with the relevant statutory and legal and industrial requirements. Neither this document, nor its use, in any way absolves the user from the responsibility to ensure that the controls and precautions referred to above are implemented. If any Rolls-Royce product design related features which could create risks to persons, the product and/or its components are identified, Rolls-Royce should be contacted immediately. It is the user's responsibility to make all relevant hazard identifications and risk assessments of all the activities associated with the use of this document. It is the user's responsibility to design and implement safe systems of work and to supply safe equipment (including, without limitation, safety equipment) and training (including, without limitation, health and safety training) to anyone using this document to work on products to which it relates. A user without relevant experience of working in accordance with this document, or with products to which it relates, should seek appropriate advice to identify the health and safety controls and precautions that need to be taken while working. Technical assistance can be sought from Rolls-Royce and will be subject to Rolls Royce's terms and conditions.

Safety Instructions

on the vessel. By operating the system, the thrusts direction and pitch/speed performance can be controlled. The operator must at all times be aware of: • Consequences of operating the system to prevent injury to people, damage of equipment, damage to the vessel operated and damage to the surroundings.

Sa FThe output from the pitch controller is computed on the basis of the input signals from pitch lever and the actuator position feedback. Lever and feedback signals are scaled and checked against adjustable limits, with corresponding alarm for exceeding the normal range. The levers have one set of adjustments (minimum, zero and maximum) for each manoeuvre station. Multiple sets of feedback adjustments (minimum, zero and maximum) are available for various engine power take-outs. In combined mode the lever signal is modified in a Combinator program, see chapter Pitch and RPM Combinatory (combined Control).

unctions

A number of safety functions are included in the system. These functions will become operative if a failure should occur in the propeller control system itself, or in external systems connected to the propeller control system.

Note: The backup control system has only interface to the control levers. The backup control system does not have interface to external control systems like Dynpos, Joystick or Autopilot

Note: No azimuth restrictions or load control functions are included in the backup system. When operating using the backup system, the operator must be careful not to overload the engine or the propeller system. If a load control system is included in the Rpm Drive, this will still be in operation.

Note: The safety functions described underneath will only be available if the thruster(s)/gear(s) have got the described function in the first place.

Pitch Control

The pitch control is one of the redundant functions in the control system. The backup control system will automatically be engaged if a serious failure occurs in the normal control system. This includes loss of power supply to the normal control system, halt in the normal control cpu, failure on the normal control order potentiometer in the lever on the manoeuvre station currently in command, failure on the normal control field bus and failure on the normal control feedback potentiometer. Alarm will be given in the control system and in the ship's alarm system.