MEM27023
Diagnose and rectify fieldbus circuits in mobile and stationary plant and equipment


Application

This unit of competency defines the skills and knowledge required to carry out diagnosis and rectification of circuits used in controller area network (CAN) and other fieldbus systems and control technology components in mobile and stationary plant.

It applies to systems and components that do not require a host computer. The unit can apply to circuits used for communication with and between systems and components, including systems for engine management, suspension, hydraulics and pneumatics, chassis and body management, braking systems, mechanical, electrical and hydraulic drives, lighting control, air conditioning, vehicle guidance and telemetry.

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

Band: A

Unit Weight: 4


Elements and Performance Criteria

Elements describe the essential outcomes.

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

1

Determine job requirements

1.1

Follow standard operating procedures (SOPs)

1.2

Comply with work health and safety (WHS) requirements at all times

1.3

Use appropriate personal protective equipment (PPE) in accordance with SOPs

1.4

Identify job requirements from specifications, drawings, job sheets or work instructions

2

Identify bus and control system components and location

2.1

Examine appropriate drawings, specifications and manuals for bus and control system information

2.2

Perform a visual inspection of equipment and identify location and any obvious faults in bus and control system wiring and components

3

Check bus and control system wiring and rectify faults

3.1

Ensure battery is charged and charging system is operating correctly

3.2

Test voltage supply, input voltage and ground

4

Assess and rectify wiring faults

4.1

Isolate wiring and sensor faults

4.2

Determine replacement sensors and cables/wires, including size and insulation quality

4.3

Make up wiring looms for application and securely fix

4.4

Strip, fit, prepare and terminate wiring and cables

4.5

Test terminated cables for continuity and to comply with requirements

4.6

Remove corrosion, neutralise and apply appropriate protective coating

4.7

Test sensors, relays, solenoids, contacts and circuits and repair/replace

Foundation Skills

This section describes those required skills (reading, writing, oral communication and numeracy) that are essential to workplace performance in this unit of competency.

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


Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Circuits include one (1) or more of the following:

bus communication

module (node) power

input power

grounding

Control module applications include one (1) or more of the following:

engine control

hydraulic systems

pneumatic systems

traction control

mechanical drives

chassis and body control

braking

air-conditioning

load control

exhaust and environmental systems

tyre and track monitoring

remote guidance and control

doors and other access locks

interior and exterior lighting

seat adjustment

power windows

turning and other indicators

low voltage electric motors

hazard and brake lights

sensors


Competency Field

Fixed and Mobile Plant