Which action demonstrates proper emergency stop procedure during operation?

• A. Immediately cut power or stop movement and place the gate in a safe state
• B. Notify supervisor and continue
• C. Log the event and ignore
• D. Only when told by maintenance

Answer: (A)

Emergency stop procedures center on stopping all motion immediately and securing the system so it cannot move or restart. The correct action is to cut power or stop movement and place the gate in a safe state right away. This means halting any active drive, isolating energy sources, and ensuring the gate cannot unexpectedly move—often by engaging brakes, locking out interlocks, and confirming the gate holds in a safe, stationary position. After the stop, assess the situation, report the incident, and follow the reset procedures per the manufacturer and site policy before resuming operation.

Taking the action to notify a supervisor and continue, or to log and ignore, or to wait for maintenance before acting, would leave a hazard unresolved and could allow movement or energy to cause injury.