This unit involves the skills and knowledge required to provide solutions to extra-low voltage (ELV) electro-pneumatic elements operating at ELV and variable speed drives.

It includes working safely, establishing required control functions, checking device installation, entering instruction into programmable devices, following workplace instruction and procedures and completing documentation.

Electrical connections referred to in this unit are confined to pre-assembled plug and socket sets. This unit does not cover competencies for installation and connection of electrical wiring.

The skills and knowledge described in this unit require a licence or permit to practice in the workplace where work is carried out on electrical installations which are designed to operate at voltages greater than 50 volt (V) alternating current (a.c.) or 120 V direct current (d.c.).

Competency development activities in this unit are subject to regulations directly related to licensing. Where a licence or permit to practice is not held, skills and knowledge described in this unit require a relevant contract of training, such as an Australian Apprenticeship.

Additional and/or other conditions may apply in some jurisdictions subject to regulations related to electrical work. Practice in the workplace and during training is also subject to work health and safety (WHS)/occupational health and safety (OHS) regulations.

Permits may also be required for some work environments, such as confined spaces, working aloft, near live electrical apparatus and site rehabilitation.

No other licensing, legislative or certification requirements apply to this unit at the time of publication.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare to problem solve electro-pneumatic control systems

1.1

WHS/OHS processes and workplace procedures for a given work area are identified, obtained and applied

1.2

Hazards are identified, WHS/OHS risks assessed, and control measures and workplace procedures implemented in preparation for work

1.3

Safety hazards that have not previously been identified are reported on job safety assessments and advice on risk control measures is sought from relevant supervisor

1.4

Control functions and drive system required to perform work are identified and documented from work instructions/specifications, relevant work supervisor or customer

1.5

Tools, equipment, inspection and testing devices needed to carry out the work are obtained and checked for correct operation and safety

2

Provide electro-pneumatic control systems solutions

2.1

WHS/OHS risk control measures and workplace procedures for carrying out work are followed

2.2

Circuits/machines/plant are checked and isolated, as required, in accordance with WHS/OHS requirements and workplace procedures

2.3

Circuits for electro-pneumatic control and drive system are developed to meet the required functions and specifications

2.4

Locations of control field devices are inspected, checked and adjusted to ensure they function correctly

2.5

Circuits for the electro-pneumatic control and drive system component connections are inspected and checked against the developed circuits specifications

2.6

Functioning of the systems entering into programmable components and parameters is set in accordance with developed circuit and manufacturer programming instructions/specifications

3

Inspect, test and document electro-pneumatic control systems

3.1

Operation of the electro-pneumatic control and drive system is tested in accordance with WHS/OHS requirements and workplace procedures

3.2

Operating anomalies are identified and corrected in accordance with workplace procedures

3.3

WHS/OHS work completion risk control measures and workplace procedures are followed

3.4

Worksite is cleaned and made safe in accordance with workplace procedures

3.5

Work completion is reported and appropriate person/s notified in accordance with workplace procedures

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

establishing and documenting functions that the control and drive system is required to perform

developing and documenting circuits for the electro-pneumatic control and drive systems that meet the required functions

checking location of control field devices and adjusting to ensure correct functioning

checking electro-pneumatic control and drive system components connections

entering functions and parameters into programmable components correctly

correcting programming anomalies

testing and verifying correct operation

reporting work completion to appropriate persons in accordance with established procedures

dealing with unplanned events

applying problem-solving techniques, including:

preparing to developing solutions

providing solutions

inspecting, testing and documenting solutions

applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including:

implementing workplace procedures and practices

using of risk control measures.

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

electrical and pneumatic control fundamentals, including:

electrical and pneumatic safety encompassing:

hazardous and safe working methods and procedures

pneumatic operating pressures

isolation procedures

electrical/pneumatic drawing types and applications encompassing:

drawing layouts and conventions (electrical and pneumatic schematics, wiring and piping diagrams)

drawing symbols

electrical and pneumatic control system components encompassing:

electrical components, including power, human-machine interfaces (HMIs), relays, plug and socket connectors; pneumatic components, including air supply systems, HMIs, valves, actuators, tubing and connectors

electrical relay types encompassing:

operation

contact configurations

pneumatic control valves and actuators encompassing:

types and their operation

activated and deactivated configurations

basic logic as applied to control systems

logic confined to AND, OR, NOT and NOR functions

variable speed drive (VSD) functions and configuration

VSD functions and set-up, including:

basic function of a variable speed drive in controlling an induction motor

configuring a VSD encompassing:

setting rated motor voltage and current, digital and analogue inputs, speed range and ramp times

testing procedures

relevant job safety assessments or risk mitigation processes

relevant manufacturer specifications

relevant problem-solving techniques

relevant WHS/OHS legislated requirements

relevant workplace documentation

relevant workplace policies and procedures.

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 must occur in suitable workplace operational situations where it is appropriate to do so; where this is not appropriate, assessment must occur in simulated suitable workplace operational situations that replicate workplace conditions.

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.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or simulations

relevant and appropriate materials, tools, facilities, equipment currently used in industry

resources that reflect current industry practices in relation to provide solutions to extra-low voltage (ELV) electro-pneumatic control systems and drives

applicable documentation, including workplace procedures, equipment specifications, regulations, codes of practice and operation manuals.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

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

Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.

Developing an electro-pneumatic system using a programable logic controller (PLC) must include the following:

at least four digital input/outputs (I/O)

at least one analogue output

Electrotechnology

Instrumentation & Control