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Elements and Performance Criteria

1. Check/test control software program
   • Program steps are checked against manufacturers' and site specifications using schematics, circuit and ladder diagrams.
   • Deviations are determined and recorded.
2. Correct or modify control system software/program
   • Program deviations are corrected and aligned to specification requirements using standard operating procedures.
   • Modifications to program are undertaken to specification requirements using standard operating procedures.
   • Modification is recorded to standard operating procedures.
   • Modified program is backed up to standard operating procedures.
3. Check/test control system inputs/outputs
   • Input/output signals are checked and assessed against operational specifications using correct and appropriate techniques, tools and equipment.
   • Faulty signals are identified, repaired and recorded/reported to appropriate personnel.
4. Repair faulty control system input/output
   • Faulty signal source is repaired and/or replaced.
   • Repaired/replaced signal source is tested for correct operation in system and commissioned in conformance to operational specifications.
5. Prepare service report
   • Service report is prepared and completed following standard operating procedure.
   • Recommendations for improvement and repeat downtime avoidance analysis are included.

Required Skills

Required skills

Look for evidence that confirms skills in reading interpreting and following information on written job instructions specifications standard operating procedures charts lists drawings circuit and ladder diagrams and other applicable documents planning and sequencing operations checking and clarifying taskrelated information identifying recording and correcting deviations of control software program from specification modifying control system softwareprogram and recording modifications backing up the modified control system program checking the input and output signals for conformance to specification using appropriate tools equipment and techniques in accordance with standard operating procedures identifying recording and correcting faulty signals marking the source of the faulty signal for repair or replacement obtaining and using supplier catalogues testing repairedreplaced signal source for correct operation in accordance with specifications and standard operating procedures commissioning the repairedreplaced signal source documenting all required service details

Required knowledge

Look for evidence that confirms knowledge of the operational specifications of the control system the program steps and their function the procedures for recording deviations of the control software program from specification the procedures for correcting deviations of the control system software from specification the modifications to be made to the control system software and reasons for modifying the control system software the procedures for recording control system software modifications the procedures for backing up modifications to control system programs the tools equipment and techniques to be used to check input and output signals for conformance to specification the procedures for recordingreporting faulty inputoutput signals the procedures for marking items for repair or replacement the tools equipment and techniques necessary to repair the signal source the disassemblyassembly procedures to be followed when repairing signal sources the specifications of the signal source the procedures for testing signal sources the procedures for commissioning signal sources into operation the procedures for reporting service undertaken on control systems any trends and probable causes evident in the data collected and collated reasons for recommended improvements safe work practices and procedures hazards and controls associated with modifying fluid power controls including housekeeping

Evidence Required

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 modify fluid power control 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 Where assessment occurs off the job ie the candidate is not in productive work 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 modifying fluid power control 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 supervisors reports project work samples and questioning Questioning should not require language literacy and numeracy skills beyond those required in this unit 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

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Range Statement

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.
Control system	PCs, programmable controllers, DCS, relay logic (electric-hydraulic-pneumatic) etc.
Modifications	Modifications covered by this unit are changes to fluid power control systems that lead to desired changes in system performance

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