Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners

MARL056 Mapping and Delivery Guide
Demonstrate basic knowledge of marine control systems and automation

Version 1.0
Issue Date: May 2024


Qualification -
Unit of Competency MARL056 - Demonstrate basic knowledge of marine control systems and automation
Description
Employability Skills
Learning Outcomes and Application This unit involves the skills and knowledge of marine automation and process control required by engineers to operate control systems on board a commercial vessel.This unit applies to people working in the maritime industry in the capacity of:Electro-Technical Officer (STCW Electro-Technical Officer Unlimited)Engineer Class 3 Near CoastalEngineer Watchkeeper (STCW Engineer Watchkeeper Unlimited). Licensing/Regulatory InformationLegislative and regulatory requirements are applicable to this unit. Regulatory requirements include STCW International Maritime Organization (IMO) model course competencies and areas of knowledge, understanding and proficiency, together with the estimated total hours required for lectures and practical exercises. Teaching staff should note that timings are suggestions only and should be adapted to suit individual groups of trainees depending on their experience, ability, equipment and staff available for training.Near Coastal Qualifications:This unit is one of the requirements to obtain Australian Maritime Safety Authority (AMSA) certification as an Engineer Class 3 Near Coastal as defined in the Marine Order 505 (Certificates of competency - National Law) 2013.Blue Waters Qualifications:This unit is one of the requirements to obtain Australian Maritime Safety Authority (AMSA) certification as an Electro-Technical Officer (STCW Electro-Technical Officer Unlimited) or Engineer Watchkeeper (STCW Engineer Watchkeeper Unlimited) and to meet regulatory requirements this unit must be delivered consistent with Marine Orders and with the relevant sections of the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW).
Duration and Setting X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting.

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Practical assessment must occur in a workplace, or realistic simulated workplace, under the normal range of workplace conditions.

Simulations and scenarios may be used where situations cannot be provided in the workplace or may occur only rarely, in particular for situations relating to emergency procedures and adverse weather conditions where assessment would be unsafe, impractical or may lead to environmental damage.

Resources for assessment must include access to:

applicable documentation, such as legislation, regulations, codes of practice, workplace procedures and operational manuals

tools, equipment, machinery, materials and relevant personal protective equipment (PPE) currently used in industry.
Prerequisites/co-requisites
Competency Field L - Engineering
Development and validation strategy and guide for assessors and learners Student Learning Resources Handouts
Activities 		Slides
PPT 		Assessment 1 Assessment 2 Assessment 3 Assessment 4
Elements of Competency Performance Criteria              
Element: Outline basic actions and functions of automation equipment in marine contexts
  • Basic concept of an automatic control system is explained using a simple block diagram, correct standard symbols and layout
       
Element: Components and operation of automatic control systems are outlined
       
Element: Relative advantages and disadvantages of different mediums used in shipboard automatic control systems are explained
       
Element: Explain action of nozzle/flapper mechanism in pneumatic instruments
  • Principle of operation of nozzle/flapper as a pneumatic control system component is outlined
       
Element: Modifications required to make the simple nozzle/flapper mechanism suitable for use in process control systems are explained
  • Different methods of measuring level in an unpressurised tank and in a closed pressurised vessel are sketched and outlined
       
Element: Applications at sea, advantages and disadvantages and temperature ranges of filled system thermometers are outlined
       
Element: Operating principles of resistance temperature detector and thermocouple are outlined
       
Element: Different methods for measuring flow onboard ships that are suited to remote indication and automatic control are identified
       
Element: Different methods for measuring pressure onboard a ship that are suited to remote indication and automatic control are identified
  • Difference between ‘OFF-ON’ control action and fully modulating proportional control action is explained
       
Element: ‘Offset’ and how it may be removed is explained
       
Element: Basic principles of operation of a simple pneumatic controller are outlined
       
Element: Action and function of hand/auto changeover station in an automatic control loop is explained using suitable schematic diagrams
       
Element: Explain basic operating principles of electronic circuits and components
  • Components are identified and electronic circuit diagrams are interpreted
       
Element: Correct methods of testing electronic components are detailed
       
Element: Basic operation of operational amplifiers is outlined
       
Element: Explain use of solid-state diodes and transistors to control monitoring and alarm systems
  • Basic concept of logic and operation of logic gates is outlined
       
Element: Operation of input/output devices and their application to sequential control systems are explained
  • Purpose and function of a typical valve actuator and positioner are confirmed
       
Element: Constructional differences between typical ‘air-to-open’ and ‘air-to-close’ actuators are confirmed
       
Element: Why ‘fail safe’ may mean valves could either close, open, or remain where they are, upon failure of their associated automatic (or servo remote) operating system, is clarified
       
Element: Operating principles of electrical actuators are outlined
       
Element: Operation of a hydraulic steering gear actuator is compared and contrasted with valve actuator and positioner assemblies
       
Element: Specify requirements for a pneumatic control system air supply
  • Standard specifications for cleanliness, moisture and oil content of a typical control air system are outlined
       
Element: Importance of ensuring that standards for cleanliness, moisture and oil content are maintained throughout operation of control air system is explained
       
Element: Typical system that is able to supply compressed air that meets required standards for cleanliness, moisture and oil content is outlined
       
Element: Explain mechanisms for control of physical parameters in a ship’s machinery space
  • Typical control loops associated with centralised cooling systems that serve the cooling water system are sketched
       
Element: Function of typical loops required for control of temperature, pressure and viscosity of fuel supplies to main and auxiliary engines are outlined and sketched
       
Element: Typical pressure and temperature control loops associated with main and auxiliary engine lubricating oil services are sketched
       
Element: Function of components of typical control loops for the automatic control of boilers are outlined and sketched
       
Element: Location and reasons for alarms associated with remote and/or automatic machinery operation to be separate from control function are explained
       
Element: Tests and procedures required to meet unmanned machinery space (UMS) requirements are specified and different types of associated alarm and monitoring systems are evaluated
       
Element: Power output and control of a main propulsion diesel engine (slow speed two-stroke) and an electrical generator prime mover (high or medium speed four-stroke) are compared and contrasted
       
Element: Explain schematically total bridge control of a commercial vessel
  • Engine manufacturer schematic diagram is interpreted and how total bridge control may be achieved to manoeuvre and control the engine is explained
       
Element: Safety interlocks in sequence of operation depicted in schematic diagram are identified and why they are required is explained
       
Element: Location of engine control positions, apart from the bridge, is identified from schematic diagram
       
Element: Why bridge control is preferred option for manoeuvring main engine in modern commercial vessels is explained
       


Evidence Required

List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and include:

accessing information and sketching diagrams to interpret and explain testing requirements related to control systems on commercial vessels

assessing own work outcomes and maintaining knowledge of current codes, standards, regulations and industry practices

explaining basic principles of marine automation and process control

identifying and interpreting numerical and graphical information, including schematic diagrams, relevant to control systems on commercial vessels

identifying and suggesting ways of rectifying faults and malfunctions in control systems on commercial vessels

identifying methods, procedures and materials needed to operate and maintain control systems on commercial vessels

imparting knowledge and ideas through verbal, written and visual means

providing accurate and reliable information

providing appropriate level of detail in responses

reading and interpreting written information related to the operation of control systems on commercial vessels.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of:

basic control engineering, including:

fundamentals of automatic control

ON-OFF control

proportional-integral-derivative (PID) control

sequential control

various automatic control

basic electronics, including:

basic electronic circuit elements:

diodes

integrated circuit (IC) and large-scale integrated circuit (LSIC)

semiconductor

thyristor

electron theory

electronic control equipment

flowchart for automatic and control systems

characteristics and functions of temperature, pressure and viscosity of fuel

components, including:

actuators

responders

sensors

concept of ‘fail safe’ philosophy

concepts of unmanned machinery space (UMS), and automated monitoring and control of machinery

control and monitoring of ship machinery

control loops

electronics and power electronics, including:

amplifiers

analogue and DC power supplies

cyclo-converters

MSI onverters

power electronic converters

rectifiers

stabilisers

transistors

fundamentals of automatic control

instrument process and control terms

measurement of process value, including:

flow

general measurement of processes

level, including direct methods and inferential methods

pressure

temperature, including mechanical and electrical

mechanical and electrical sensors

mediums, including:

compressed air

electric currents

electric voltages

hydraulic fluids

ON-OFF control

pneumatic and electrical instrumentation transmitters

preparation, operation, fault detection and necessary measures to prevent damage for machinery items and control systems

principles of:

basic electronic circuits

basic pneumatic systems and action of pneumatic instruments

process control

relevant industry standards for drawing symbols/layouts for schematic diagrams

safety and emergency procedures for operation of propulsion plant machinery, including control systems

safety devices, alarms and monitoring systems

sensing and transmitting elements

sequential control

tests and procedures required to meet UMS requirements

total bridge control

transmission of signals, including:

controlling elements, including pneumatic

transmitters

various automatic controls

work health and safety (WHS)/occupational health and safety (OHS) legislation, policies and procedures.

Submission Requirements

List each assessment task's title, type (eg project, observation/demonstration, essay, assignment, checklist) and due date here

Assessment task 1: [title]      Due date:

(add new lines for each of the assessment tasks)

Assessment Tasks

Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.

Observation Checklist

Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice Yes No Comments/feedback
Basic concept of an automatic control system is explained using a simple block diagram, correct standard symbols and layout 
 
 
Principle of operation of nozzle/flapper as a pneumatic control system component is outlined 
Different methods of measuring level in an unpressurised tank and in a closed pressurised vessel are sketched and outlined 
 
 
 
Difference between ‘OFF-ON’ control action and fully modulating proportional control action is explained 
 
 
 
Components are identified and electronic circuit diagrams are interpreted 
 
 
Basic concept of logic and operation of logic gates is outlined 
Purpose and function of a typical valve actuator and positioner are confirmed 
 
 
 
 
Standard specifications for cleanliness, moisture and oil content of a typical control air system are outlined 
 
 
Typical control loops associated with centralised cooling systems that serve the cooling water system are sketched 
 
 
 
 
 
 
Engine manufacturer schematic diagram is interpreted and how total bridge control may be achieved to manoeuvre and control the engine is explained 
 
 
 

Forms

Assessment Cover Sheet

MARL056 - Demonstrate basic knowledge of marine control systems and automation
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Assessment Record Sheet

MARL056 - Demonstrate basic knowledge of marine control systems and automation

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