How to Secure the Commissioning of Industrial Machines: Field-Proven Best Practices

Commissioning an industrial machine is a critical phase: a wrong parameter, an overlooked safety device or a misaligned axis can lead to accidents, production downtime and major financial losses.This guide presents the proven field methodology used by top automation engineers to ensure safe, reliable and efficient machine commissioning.

Automation engineer commissioning an industrial machine in a modern factory, verifying the automation control cabinet, safety systems and commissioning checklist before startup.

Preparation: The Most Underestimated Step of Commissioning

Successful commissioning starts long before you power up the machine.

Technical preparation for industrial machine commissioning with PLC programming software, electrical schematics, engineering documentation and FAT/SAT checklist.

✓ Documentation Validation

• Updated electrical and pneumatic diagrams

• Confirmed network architecture (IP scheme, VLANs, routing)

• Recorded software versions (PLC, HMI, drives, safety CPU)

• FAT/SAT test plans approved

  
  

✓ Software Preparation

• Functional block verification

• Dependency analysis between sequences

• Offline simulation (TIA Portal, EcoStruxure, Studio5000, etc.)

Goal: eliminate surprises and ensure smooth first startups.

Securing the Machine Before First Power-Up

Before energizing anything, perform a full field inspection.

Mechanical Checks

• Tightening and alignment

• Clearance in moving areas

• Lubrication levels

• Verified rotation direction

  
  

Electrical Checks

• Insulation / continuity testing

• Correct cable tagging

• Wiring–schematic consistency

• Tightened terminals and relays

  
  

Safety Checks

• Light curtains tested

• Door switches, interlocks, pull cords, emergency stops

• Safety mapping validated

• Stopping time measured

Golden rule: Never energize a machine until all safety systems are verified.

Contact us to ensure your service activation is secure.

Progressive Power-Up and Axis Validation

Powering up the machine must be phased and controlled.

1. Power control cabinets only

2. Run PLC diagnostics

3. Enable drives locally

4. Test axes at low speed

5. Switch to automatic mode only after full validation

Critical Points

• Motor/encoder direction

• Drive gains too aggressive → vibration

• Incorrect homing

• Abnormal no-load current

This phase exposes 80% of preventable issues.

Industrial infographic illustrating the progressive machine power-up procedure: control cabinet energizing, I/O verification, drive testing and low-speed motor validation.

Sequence Testing: Validate the Machine Step by Step

The machine must be verified sequence by sequence:

• Transition logic validation

• Prevention of simultaneous impossible actions

• Fault messages evaluation

• Tuned timers to avoid collisions

An automation engineer must stop the ramp-up immediately if:

• movement behaviour is inconsistent,

• abnormal heat is detected,

• motion profiles are too fast,

• a sensor signal fluctuates unexpectedly.

  

  Automation engineer performing sequential machine tests using an HMI interface to validate sensors, actuators and control logic during commissioning.

Functional Safety Validation and Compliance

Before entering production, safety testing is mandatory.

Safety Tests

• Emergency stop → machine must stop within the required time

• Redundant safety sensor tests

• SIL/PL validation according to design

• Safety chain verification (generic Pilz/Sick/Siemens style, no branding)

  
  

Required Documentation

• Safety test report

• Operator/maintenance signature

• As-built updated schematics

A machine must never be declared compliant without this validation.

Industrial safety validation test showing an emergency stop activation and light curtain triggering to confirm safe machine shutdown.

Operator Training and Knowledge Transfer

Long-term safety depends on your workforce.

• Train operators & maintenance teams

• Provide clear “Start / Stop / Reset / Fault” procedures

• Deliver quick-response troubleshooting guides

• Explain machine limits and safety risks

A perfectly commissioned machine becomes unsafe if operators misuse it.

Automation engineer training operators on an industrial HMI interface explaining Start, Stop and Reset procedures after machine commissioning.

Post-Commissioning Monitoring: The Secret to Stability

The first 72 hours are crucial.

Monitor:

• Repetitive fault history

• Drive/motor current consumption

• Cabinet temperature

• Product quality

• Axis synchronisation

A structured feedback loop prevents early failures and improves performance.

The result of good practices

Securing machine commissioning is not a formality. It requires structured preparation, rigorous verification, phased startup, detailed safety testing and continuous monitoring.Applying these field-proven methods drastically reduces:

• safety risks,

• downtime,

• quality issues,

• and accelerates stable full-speed production.

Contact us to ensure your service activation is secure.