- MEM18067B - Tune control loops - multi controller or multi element systems
Unit of Competency Mapping – Information for Teachers/Assessors – Information for Learners
MEM18067B Mapping and Delivery Guide
Tune control loops - multi controller or multi element systems
Version 1.0
Issue Date: May 2024
| Qualification | - |
Unit of Competency | MEM18067B - Tune control loops - multi controller or multi element systems |
|---|---|---|---|
| Description | This unit covers determining and recording control loop characteristics, tuning control loops and completing service records. | ||
| Employability Skills | This unit contains employability skills. | ||
| Learning Outcomes and Application | This unit applies to pneumatic, analog and digital electronic test and recording equipment for the monitoring and adjustment of control loop tuning - the recording of control loop responses in open and closed loop modes. Included is the application of step response - open loop tuning calculations and closed loop ultimate sensitivity trials to achieve specified loop characteristics in conformance to operational specifications.Where fault finding is required to electronic component level, Unit MEM18056B (Diagnose and repair analog equipment and components) should also be selected.Band:This unit has dual status and is to be regarded as both a Specialisation band A unit and Specialisation band B unit for progression to C5 (AQF level V).Unit Weight: 6 | ||
| Duration and Setting | X weeks, nominally xx hours, delivered in a classroom/online/blended learning setting. |
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| Prerequisites/co-requisites | Path 1MEM05001B Perform manual soldering/desoldering - electrical/electronic components MEM09002B Interpret technical drawing MEM12004B Perform precision electrical/electronic measurement MEM12023A Perform engineering measurements MEM18001C Use hand tools MEM18002B Use power tools/hand held operations MEM18054B Fault find, test and calibrate instrumentation systems and equipment MEM18055B Dismantle, replace and assemble engineering components MEM18057B Maintain/service analog/digital electronic equipment MEM18060B Maintain, repair control instrumentation - single and multiple loop control systems MEM18062B Install, maintain and calibrate instrumentation sensors, transmitters and final control elements Path 2MEM09002B Interpret technical drawing MEM12002B Perform electrical/electronic measurement MEM12023A Perform engineering measurements MEM18001C Use hand tools MEM18002B Use power tools/hand held operations MEM18054B Fault find, test and calibrate instrumentation systems and equipment MEM18055B Dismantle, replace and assemble engineering components MEM18060B Maintain, repair control instrumentation - single and multiple loop control systems MEM18062B Install, maintain and calibrate instrumentation sensors, transmitters and final control elements MEM18064B Maintain instrumentation system components | ||
| Competency Field | Maintenance and diagnostics | ||
| 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 | |
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| Elements of Competency | Performance Criteria | |||||||
| Element: Determine control loop characteristics |
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| Element: Record control loop responses |
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| Element: Tune control loops |
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| Element: Complete service reports |
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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.
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package. | |
Overview of assessment | A person who demonstrates competency in this unit must be able to tune control loops - multi controller or multi element systems. Competency in this unit cannot be claimed until all prerequisites have been satisfied. |
Critical aspects for assessment and evidence required to demonstrate competency in this unit | Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts. |
Context of and specific resources for assessment | This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate. This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with tuning control loops - multi controller or multi element systems, or other units requiring the exercise of the skills and knowledge covered by this unit. |
Method of assessment | Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials. |
Guidance information for assessment | |
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.
Required skills |
Look for evidence that confirms skills in: calculating control loop characteristics obtaining and interpreting relevant engineering specifications, technical information, software data, diagrams and drawings, historical records and documents pertaining to the system components and operational data consulting system operators and other relevant plant personnel with respect to the control loop characteristics confirming function/malfunction of the system and/or its components checking operational characteristics of control devices, signal conversion instruments and final control elements for conformance to specification identifying faults/defects in control system components locating/reading in-built fault indicators and error codes obtaining relevant pneumatic, electrical and electronic circuit diagrams determining corrective action and interpreting trends from operational data testing/monitoring the control loop for correct operation monitoring and recording operational responses of the control system/loop using appropriate fault-finding and diagnostic techniques and procedures throughout the monitoring and testing process comparing collected data with the operational specifications of the control system marking components for repair or replacement dismantling/disassembling serviceable items setting up appropriate test and calibration equipment setting and adjusting the controller modes checking the control instrumentation for correct zero, span and range adjusting the control system as required implementing diagnostic techniques and procedures tuning the control loop completing all necessary reports including appropriate follow up procedures commissioning the control system |
Required knowledge |
Look for evidence that confirms knowledge of: proportional integral differential (PID) control loops tuning/calibration techniques mathematical computations including algebra, exponentials and logarithms, equations, graphs, charts, vectors, complex numbers, Boolean algebra relevant data, including information from in-built devices on the control loop characteristics specifications of each system component control programming SCADA systems, programmable logic controller systems (PLC), distributive control systems (DCS) and computer-based systems procedures for documenting/reporting information signal transmission including the principles of operation of the final control element, procedures for calibrating and adjusting the control system correct function of the circuits and components within the control loop calibration and adjustment methods for the control loop devices configuration of the digital control system software operational responses and procedures for monitoring and recording test and operational data fault-finding and diagnostic techniques throughout the monitoring and testing process deviations/variations from specification procedures for documenting control system tests and analysis hazards associated with testing circuits procedures for isolating and testing the control system and its components procedures for verifying apparent faults in circuits and/or control system components procedures for marking components for repair or replacement including procedures for dismantling/ disassembling components for repair or replacement correct maintenance procedures for serviceable item(s) procedures for assembling repaired and/or replacement items procedures and equipment necessary for the calibration of control system components adjustments which affect the calibration to control system components controller modes and actions procedures for checking control instruments for zero, span and range procedures for making final adjustments to ensure all control system components conform to specification reporting/recording requirements associated with the commissioning of the control system follow-up actions to be undertaken after maintaining/repairing control system instrumentation procedures for commissioning the control system safe work practices and procedures |
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. | |
Historical process | SCADA, charts, chart recorders and data loggers, equipment condition monitoring etc. |
Control loop | An opened and closed loop system includes final control elements, process measuring devices, converters, controllers, process signals and the like |
Test equipment | Pneumatic, analogue and digital electronic test equipment for the monitoring and adjustment of control loop tuning |
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 |
|---|---|---|---|
| Engineering specifications, technical information and historical process, records and trends are examined for relevant data. | |||
| Consultation with system operators and other relevant plant personnel is carried out, and relevant data is extracted and documented to standard operating procedures. | |||
| Programmed maintenance/service reports are read and relevant data noted. | |||
| Data is analysed and control loop characteristics are ascertained. | |||
| Using chart recorders and data loggers, control loop responses are recorded in open and closed loop mode. | |||
| Unit is tested for tuning using appropriate diagnostic techniques. | |||
| Diagnostic results are analysed against specifications. | |||
| Using knowledge of control loop device characteristics, controller mode principles and adjustment methods, tuning operations are performed using correct and appropriate techniques, procedures and equipment. | |||
| Recording equipment used for monitoring and adjustment of control loop components during controller tuning operations is corrected and tested. | |||
| Step response - open loop tuning calculations are applied to achieve specified loop characteristics. | |||
| Closed loop tuning methods using ultimate sensitivity and systematic trials are used to achieve specified loop characteristics. | |||
| Correct sequence of tuning is used on multi controllers and/or multi element systems to achieve specified characteristics. | |||
| Control loops are tuned to optimum mode settings utilising correct and appropriate techniques, tools, test equipment and procedures. | |||
| Service reports are completed to standard operating procedures. | |||
| Appropriate follow up procedures are adopted. | |||
| Process control loop is recommissioned to specifications. |
Forms
Assessment Cover Sheet
MEM18067B - Tune control loops - multi controller or multi element systems
Assessment task 1: [title]
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I declare that the assessment tasks submitted for this unit are my own work.
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Result: Competent Not yet competent
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Assessment Record Sheet
MEM18067B - Tune control loops - multi controller or multi element systems
Student name:
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Assessment task 1: [title] Result: Competent Not yet competent
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Feedback to student:
Overall assessment result: Competent Not yet competent
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