A robot’s program and operating mode at the time of an injury may be as important as its physical condition. An unexpected movement while a worker enters the cell or clears a fault can involve programming, a bypassed interlock, stored energy, sensor limitations, or the maintenance procedure. The investigation must preserve enough of the system’s state to distinguish those possibilities.
Preserve settings and logs before they change
Identify the robot, controller, end effector, cell guarding, gates, light curtains, sensors, and emergency stops. Secure controller alarms, the program version, access logs, video, and maintenance history. Record whether the system was in automatic, teach, or maintenance mode.
Once immediate safety needs are addressed, preserve volatile logs and current settings before the system is cycled or reprogrammed. Repair and program changes can leave the investigator examining a different configuration from the one present during the injury.
OSHA’s robotics resources identify hazards from unexpected movement and interaction with automated equipment. They are guidance; the applicable machine-guarding and energy-control rules depend on the operation and servicing task.
What did the safeguard cover?
A sensor may be installed without its detection field covering the worker’s position. Examine the actual design and configuration rather than assuming that the presence of a device prevented entry. The task being performed must also be compared with the safeguards used.
The employer, integrator, robot manufacturer, software provider, and maintenance contractor may control different parts of the system. Preserve contracts, change orders, and validation records to identify those roles. Our explanation of claims beyond the employer addresses the separate question of available remedies.
For initial incident records, see steps after a Louisiana work injury. Our workplace injury lawyers can examine the parties and evidence. Contact the firm if repairs or program changes are pending.
Editorial & Legal Accuracy Notice (Louisiana)
Sources checked: September 25, 2026.
Automation design, task, control and available claims require engineering and legal analysis.