Product Overview

Summary: This Motor Control Systems Safe Operating Procedure sets out clear, practical steps for the safe operation, testing, and maintenance of motor control equipment in Australian workplaces. It helps organisations manage electrical and mechanical risks, maintain compliance with WHS obligations, and ensure reliable plant performance across manufacturing, processing, utilities, and commercial facilities.

Motor control systems sit at the heart of modern plant and equipment, driving conveyors, pumps, fans, compressors and process lines. When they are not managed correctly, they introduce significant electrical, mechanical and arc flash risks, along with the potential for costly unplanned downtime. This Motor Control Systems Safe Operating Procedure provides a structured, WHS-aligned framework for how motor control centres (MCCs), variable speed drives (VSDs), soft starters, contactor panels and associated control circuits are to be inspected, energised, operated, fault‑found and isolated in the Australian context.

The SOP translates complex electrical and control concepts into clear, step-by-step instructions that can be applied consistently across sites and shifts. It addresses safe access to live panels, lock out tag out (LOTO) for motors and associated equipment, verification of isolation, functional testing, and re‑energisation following maintenance or modification. By implementing this procedure, organisations can significantly reduce the likelihood of electric shock, arc flash, unexpected start‑up and equipment damage, while also improving reliability and traceability of work on critical assets. It supports duty holders in demonstrating due diligence under WHS legislation and provides a defensible basis for training, supervision and contractor control.

Key Benefits

• Ensure safe and consistent operation, isolation and testing of motor control systems across all sites and shifts.
• Reduce the risk of electric shock, arc flash, unexpected start-up and mechanical injury associated with motors and driven equipment.
• Improve equipment reliability by standardising inspection, fault-finding and commissioning practices for MCCs, VSDs and control panels.
• Demonstrate compliance with Australian WHS legislation and relevant electrical and machinery safety standards.
• Streamline onboarding and competency assessment for electricians, technicians and contractors working on motor control systems.

Who is this for?

• Electrical Engineers
• Industrial Electricians
• Maintenance Supervisors
• Instrumentation and Control Technicians
• Engineering Managers
• Operations Managers
• WHS Managers and Advisors
• Facilities Managers
• Project Engineers
• Authorised Electrical Persons

Hazards Addressed

• Electric shock from exposed live parts or incorrect isolation of motor circuits
• Arc flash and arc blast during switching, racking or fault conditions in MCCs and switchboards
• Unexpected start-up or movement of motors and connected plant during maintenance or fault-finding
• Mechanical entanglement, crushing or shearing from driven equipment (e.g. conveyors, pumps, fans) following control system work
• Short circuits and equipment damage due to incorrect wiring, terminations or protective device settings
• Thermal hazards from overloaded motors, loose connections or inadequate ventilation of control equipment
• Slip, trip and fall risks around control panels, cable routes and plant during testing and commissioning
• Fire risk from electrical faults, overheating components or inappropriate protective devices

Included Sections

• 1.0 Purpose and Scope
• 2.0 Definitions and Terminology (MCCs, VSDs, control circuits, interlocks)
• 3.0 Roles, Responsibilities and Authorisations
• 4.0 Applicable Legislation, Standards and Codes of Practice
• 5.0 Competency, Licensing and Training Requirements
• 6.0 Required Tools, Test Instruments and Documentation
• 7.0 Personal Protective Equipment (PPE) and Arc Flash Controls
• 8.0 Pre-Work Planning and Risk Assessment (JSA/SWMS)
• 9.0 Lock Out Tag Out (LOTO) and Verification of Isolation for Motors and Control Circuits
• 10.0 Access to Motor Control Centres, Switchboards and Control Panels
• 11.0 Safe Operating Procedure – Normal Start-up and Shutdown of Motor Control Systems
• 12.0 Safe Procedure for Adjustment of Settings (overloads, VSD parameters, interlocks)
• 13.0 Fault-Finding and Testing of Motor Control Circuits
• 14.0 Working on or Near Energised Equipment – Conditions and Controls
• 15.0 Reconnection, Commissioning and Functional Testing After Maintenance or Modifications
• 16.0 Management of Interlocks, Emergency Stops and Safety-Related Control Functions
• 17.0 Housekeeping, Cable Management and Panel Labelling Requirements
• 18.0 Emergency Response – Electric Shock, Arc Flash and Equipment Failure
• 19.0 Inspection, Maintenance and Periodic Verification of Motor Control Systems
• 20.0 Documentation, Records, Change Control and Handover
• 21.0 Review, Audit and Continuous Improvement of the SOP

Legislation & References

• Work Health and Safety Act 2011 (Cth) and mirror WHS Regulations in applicable states and territories
• Safe Work Australia – Code of Practice: Managing electrical risks in the workplace
• Safe Work Australia – Code of Practice: Managing the risks of plant in the workplace
• AS/NZS 3000:2018 Electrical installations (Australian/New Zealand Wiring Rules)
• AS/NZS 3017:2007 Electrical installations – Verification guidelines
• AS/NZS 4024 series: Safety of machinery
• AS 61439 series: Low-voltage switchgear and controlgear assemblies
• AS/NZS 4836:2022 Safe working on or near low-voltage electrical installations and equipment
• AS/NZS ISO 45001:2018 Occupational health and safety management systems